version: bump up to 3.2.1

Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>

CODE_OF_CONDUCT.md

@@ -1,63 +0,0 @@
-## CoreOS Community Code of Conduct
-
-### Contributor Code of Conduct
-
-As contributors and maintainers of this project, and in the interest of
-fostering an open and welcoming community, we pledge to respect all people who
-contribute through reporting issues, posting feature requests, updating
-documentation, submitting pull requests or patches, and other activities.
-
-We are committed to making participation in this project a harassment-free
-experience for everyone, regardless of level of experience, gender, gender
-identity and expression, sexual orientation, disability, personal appearance,
-body size, race, ethnicity, age, religion, or nationality.
-
-Examples of unacceptable behavior by participants include:
-
-* The use of sexualized language or imagery
-* Personal attacks
-* Trolling or insulting/derogatory comments
-* Public or private harassment
-* Publishing others' private information, such as physical or electronic addresses, without explicit permission
-* Other unethical or unprofessional conduct.
-
-Project maintainers have the right and responsibility to remove, edit, or
-reject comments, commits, code, wiki edits, issues, and other contributions
-that are not aligned to this Code of Conduct. By adopting this Code of Conduct,
-project maintainers commit themselves to fairly and consistently applying these
-principles to every aspect of managing this project. Project maintainers who do
-not follow or enforce the Code of Conduct may be permanently removed from the
-project team.
-
-This code of conduct applies both within project spaces and in public spaces
-when an individual is representing the project or its community.
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting a project maintainer, Brandon Philips
-<brandon.philips@coreos.com>, and/or Meghan Schofield
-<meghan.schofield@coreos.com>.
-
-This Code of Conduct is adapted from the Contributor Covenant
-(http://contributor-covenant.org), version 1.2.0, available at
-http://contributor-covenant.org/version/1/2/0/
-
-### CoreOS Events Code of Conduct
-
-CoreOS events are working conferences intended for professional networking and
-collaboration in the CoreOS community. Attendees are expected to behave
-according to professional standards and in accordance with their employer’s
-policies on appropriate workplace behavior.
-
-While at CoreOS events or related social networking opportunities, attendees
-should not engage in discriminatory or offensive speech or actions including
-but not limited to gender, sexuality, race, age, disability, or religion.
-Speakers should be especially aware of these concerns.
-
-CoreOS does not condone any statements by speakers contrary to these standards.
-CoreOS reserves the right to deny entrance and/or eject from an event (without
-refund) any individual found to be engaging in discriminatory or offensive
-speech or actions.
-
-Please bring any concerns to the immediate attention of designated on-site
-staff, Brandon Philips <brandon.philips@coreos.com>, and/or Meghan Schofield
-<meghan.schofield@coreos.com>.

Documentation/dl_build.md

@@ -2,7 +2,7 @@
 
 ## System requirements
 
-The etcd performance benchmarks run etcd on 8 vCPU, 16GB RAM, 50GB SSD GCE instances, but any relatively modern machine with low latency storage and a few gigabytes of memory should suffice for most use cases. Applications with large v2 data stores will require more memory than a large v3 data store since data is kept in anonymous memory instead of memory mapped from a file. For running etcd on a cloud provider, see the [Example hardware configuration][example-hardware-configurations] documentation.
+The etcd performance benchmarks run etcd on 8 vCPU, 16GB RAM, 50GB SSD GCE instances, but any relatively modern machine with low latency storage and a few gigabytes of memory should suffice for most use cases. Applications with large v2 data stores will require more memory than a large v3 data store since data is kept in anonymous memory instead of memory mapped from a file. than For running etcd on a cloud provider, we suggest at least a medium instance on AWS or a standard-1 instance on GCE.
 
 ## Download the pre-built binary
 
@@ -18,6 +18,7 @@ To build `etcd` from the `master` branch without a `GOPATH` using the official `
 $ git clone https://github.com/coreos/etcd.git
 $ cd etcd
 $ ./build
+$ ./bin/etcd
 ```
 
 To build a vendored `etcd` from the `master` branch via `go get`:
@@ -27,6 +28,7 @@ To build a vendored `etcd` from the `master` branch via `go get`:
 $ echo $GOPATH
 /Users/example/go
 $ go get github.com/coreos/etcd/cmd/etcd
+$ $GOPATH/bin/etcd
 ```
 
 To build `etcd` from the `master` branch without vendoring (may not build due to upstream conflicts):
@@ -36,28 +38,20 @@ To build `etcd` from the `master` branch without vendoring (may not build due to
 $ echo $GOPATH
 /Users/example/go
 $ go get github.com/coreos/etcd
+$ $GOPATH/bin/etcd
 ```
 
 ## Test the installation
 
 Check the etcd binary is built correctly by starting etcd and setting a key.
 
-### Starting etcd
-
-If etcd is built without using GOPATH, run the following:
+Start etcd:
 
 ```
 $ ./bin/etcd
 ```
-If etcd is built using GOPATH, run the following:
 
-```
-$ $GOPATH/bin/etcd
-```
-
-### Setting a key
-
-Run the following:
+Set a key:
 
 ```
 $ ETCDCTL_API=3 ./bin/etcdctl put foo bar
@@ -70,4 +64,4 @@ If OK is printed, then etcd is working!
 [go]: https://golang.org/doc/install
 [build-script]: ../build
 [cmd-directory]: ../cmd
-[example-hardware-configurations]: op-guide/hardware.md#example-hardware-configurations
+

Documentation/faq.md

@@ -14,10 +14,6 @@
 
 `advertise-urls` specifies the addresses etcd clients or other etcd members should use to contact the etcd server. The advertise addresses must be reachable from the remote machines. Do not advertise addresses like `localhost` or `0.0.0.0` for a production setup since these addresses are unreachable from remote machines.
 
-#### Why doesn't changing `--listen-peer-urls` or `--initial-advertise-peer-urls` update the advertised peer URLs in `etcdctl member list`?
-
-A member's advertised peer URLs come from `--initial-advertise-peer-urls` on initial cluster boot. Changing the listen peer URLs or the initial advertise peers after booting the member won't affect the exported advertise peer URLs since changes must go through quorum to avoid membership configuration split brain. Use `etcdctl member update` to update a member's peer URLs.
-
 ### Deployment
 
 #### System requirements

Documentation/integrations.md

@@ -40,7 +40,7 @@
 
 **Python libraries**
 
-- [kragniz/python-etcd3](https://github.com/kragniz/python-etcd3) - Client for v3
+- [kragniz/python-etcd3](https://github.com/kragniz/python-etcd3) - Work in progress client for v3
 - [jplana/python-etcd](https://github.com/jplana/python-etcd) - Supports v2
 - [russellhaering/txetcd](https://github.com/russellhaering/txetcd) - a Twisted Python library
 - [cholcombe973/autodock](https://github.com/cholcombe973/autodock) - A docker deployment automation tool
@@ -50,7 +50,6 @@
 
 **Node libraries**
 
-- [mixer/etcd3](https://github.com/mixer/etcd3) - Supports v3
 - [stianeikeland/node-etcd](https://github.com/stianeikeland/node-etcd) - Supports v2 (w Coffeescript)
 - [lavagetto/nodejs-etcd](https://github.com/lavagetto/nodejs-etcd) - Supports v2
 - [deedubs/node-etcd-config](https://github.com/deedubs/node-etcd-config) - Supports v2

Documentation/learning/auth_design.md

@@ -60,7 +60,7 @@ For avoiding such a situation, the API layer performs *version number validation
 
 After authenticating with `Authenticate()`, a client can create a gRPC connection as it would without auth. In addition to the existing initialization process, the client must associate the token with the newly created connection. `grpc.WithPerRPCCredentials()` provides the functionality for this purpose.
 
-Every authenticated request from the client has a token. The token can be obtained with `grpc.metadata.FromIncomingContext()` in the server side. The server can obtain who is issuing the request and when the user was authorized. The information will be filled by the API layer in the header (`etcdserverpb.RequestHeader.Username` and `etcdserverpb.RequestHeader.AuthRevision`) of a raft log entry (`etcdserverpb.InternalRaftRequest`).
+Every authenticated request from the client has a token. The token can be obtained with `grpc.metadata.FromContext()` in the server side. The server can obtain who is issuing the request and when the user was authorized. The information will be filled by the API layer in the header (`etcdserverpb.RequestHeader.Username` and `etcdserverpb.RequestHeader.AuthRevision`) of a raft log entry (`etcdserverpb.InternalRaftRequest`).
 
 ### Checking permission in the state machine
 

Documentation/op-guide/clustering.md

@@ -281,7 +281,7 @@ ETCD_DISCOVERY=https://discovery.etcd.io/3e86b59982e49066c5d813af1c2e2579cbf573d
 --discovery https://discovery.etcd.io/3e86b59982e49066c5d813af1c2e2579cbf573de
 ```
 
-**Each member must have a different name flag specified or else discovery will fail due to duplicated names. `Hostname` or `machine-id` can be a good choice.**
+**Each member must have a different name flag specified or else discovery will fail due to duplicated names. `Hostname` or `machine-id` can be a good choice. **
 
 Now we start etcd with those relevant flags for each member:
 

Documentation/op-guide/etcd3_alert.rules

@@ -76,7 +76,7 @@ LABELS {
 }
 ANNOTATIONS {
   summary = "slow gRPC requests",
-  description = "on etcd instance {{ $labels.instance }} gRPC requests to {{ $labels.grpc_method }} are slow",
+  description = "on etcd instance {{ $labels.instance }} gRPC requests to {{ $label.grpc_method }} are slow",
 }
 
 # HTTP requests alerts
@@ -117,7 +117,7 @@ LABELS {
 }
 ANNOTATIONS {
   summary = "slow HTTP requests",
-  description = "on etcd instance {{ $labels.instance }} HTTP requests to {{ $labels.method }} are slow",
+  description = "on etcd instance {{ $labels.instance }} HTTP requests to {{ $label.method }} are slow",
 }
 
 # file descriptor alerts
@@ -161,7 +161,7 @@ LABELS {
 }
 ANNOTATIONS {
   summary = "etcd member communication is slow",
-  description = "etcd instance {{ $labels.instance }} member communication with {{ $labels.To }} is slow",
+  description = "etcd instance {{ $labels.instance }} member communication with {{ $label.To }} is slow",
 }
 
 # etcd proposal alerts

Documentation/v2/etcd_alert.rules

@@ -62,7 +62,7 @@ ALERT HTTPRequestsSlow
   }
   ANNOTATIONS {
     summary = "slow HTTP requests",
-    description = "on etcd instance {{ $labels.instance }} HTTP requests to {{ $labels.method }} are slow",
+    description = "on etcd instance {{ $labels.instance }} HTTP requests to {{ $label.method }} are slow",
   }
 
 ### File descriptor alerts ###

NEWS

@@ -1,60 +1,3 @@
-etcd v3.2.0 (2017-06-09)
-- improved backend read concurrency
-- embedded etcd
-  - Etcd.Peers field is now []*peerListener
-- RPCs
-  - add Election, Lock service
-- native client etcdserver/api/v3client
-  - client "embedded" in the server
-- v3 client
-  - LeaseTimeToLive returns TTL=-1 resp on lease not found
-  - clientv3.NewFromConfigFile is moved to clientv3/yaml.NewConfig
-  - STM prefetching
-  - add namespace feature
-  - concurrency package's elections updated to match RPC interfaces
-  - let client dial endpoints not in the balancer
-  - add ErrOldCluster with server version checking
-  - translate WithPrefix() into WithFromKey() for empty key
-- v3 etcdctl
-  - add check perf command
-  - add --from-key flag to role grant-permission command
-  - lock command takes an optional command to execute
-- etcd flags
-  - add --enable-v2 flag to configure v2 backend (enabled by default)
-  - add --auth-token flag
-- gRPC proxy
-  - proxy endpoint discovery
-  - namespaces
-  - coalesce lease requests
-- gateway
-  - support DNS SRV priority
-- auth
-  - support Watch API
-  - JWT tokens
-- logging, monitoring
-  - server warns large snapshot operations
-  - add 'etcd_debugging_server_lease_expired_total' metrics
-- security
-  - deny incoming peer certs with wrong IP SAN
-  - resolve TLS DNSNames when SAN checking
-  - reload TLS certificates on every client connection
-- release
-  - annotate acbuild with supports-systemd-notify
-  - add nsswitch.conf to Docker container image
-  - add ppc64le, arm64(experimental) builds
-  - Go 1.8.3
-  - gRPC v1.2.1
-  - grpc-gateway to v1.2.0
-- v2
-  - allow snapshot over 512MB
-
-etcd v3.1.9 (2017-06-09)
-- allow v2 snapshot over 512MB
-
-etcd v3.1.8 (2017-05-19)
-
-etcd v3.1.7 (2017-04-28)
-
 etcd v3.1.6 (2017-04-19)
 - remove auth check in Status API
 - fill in Auth API response header

auth/jwt.go

@@ -97,9 +97,7 @@ func prepareOpts(opts map[string]string) (jwtSignMethod, jwtPubKeyPath, jwtPrivK
 			return "", "", "", ErrInvalidAuthOpts
 		}
 	}
-	if len(jwtSignMethod) == 0 {
-		return "", "", "", ErrInvalidAuthOpts
-	}
+
 	return jwtSignMethod, jwtPubKeyPath, jwtPrivKeyPath, nil
 }
 

auth/jwt_test.go

@@ -1,94 +0,0 @@
-// Copyright 2017 The etcd Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package auth
-
-import (
-	"context"
-	"testing"
-)
-
-const (
-	jwtPubKey  = "../integration/fixtures/server.crt"
-	jwtPrivKey = "../integration/fixtures/server.key.insecure"
-)
-
-func TestJWTInfo(t *testing.T) {
-	opts := map[string]string{
-		"pub-key":     jwtPubKey,
-		"priv-key":    jwtPrivKey,
-		"sign-method": "RS256",
-	}
-	jwt, err := newTokenProviderJWT(opts)
-	if err != nil {
-		t.Fatal(err)
-	}
-	token, aerr := jwt.assign(context.TODO(), "abc", 123)
-	if aerr != nil {
-		t.Fatal(err)
-	}
-	ai, ok := jwt.info(context.TODO(), token, 123)
-	if !ok {
-		t.Fatalf("failed to authenticate with token %s", token)
-	}
-	if ai.Revision != 123 {
-		t.Fatalf("expected revision 123, got %d", ai.Revision)
-	}
-	ai, ok = jwt.info(context.TODO(), "aaa", 120)
-	if ok || ai != nil {
-		t.Fatalf("expected aaa to fail to authenticate, got %+v", ai)
-	}
-}
-
-func TestJWTBad(t *testing.T) {
-	opts := map[string]string{
-		"pub-key":     jwtPubKey,
-		"priv-key":    jwtPrivKey,
-		"sign-method": "RS256",
-	}
-	// private key instead of public key
-	opts["pub-key"] = jwtPrivKey
-	if _, err := newTokenProviderJWT(opts); err == nil {
-		t.Fatalf("expected failure on missing public key")
-	}
-	opts["pub-key"] = jwtPubKey
-
-	// public key instead of private key
-	opts["priv-key"] = jwtPubKey
-	if _, err := newTokenProviderJWT(opts); err == nil {
-		t.Fatalf("expected failure on missing public key")
-	}
-	opts["priv-key"] = jwtPrivKey
-
-	// missing signing option
-	delete(opts, "sign-method")
-	if _, err := newTokenProviderJWT(opts); err == nil {
-		t.Fatal("expected error on missing option")
-	}
-	opts["sign-method"] = "RS256"
-
-	// bad file for pubkey
-	opts["pub-key"] = "whatever"
-	if _, err := newTokenProviderJWT(opts); err == nil {
-		t.Fatalf("expected failure on missing public key")
-	}
-	opts["pub-key"] = jwtPubKey
-
-	// bad file for private key
-	opts["priv-key"] = "whatever"
-	if _, err := newTokenProviderJWT(opts); err == nil {
-		t.Fatalf("expeceted failure on missing private key")
-	}
-	opts["priv-key"] = jwtPrivKey
-}

auth/simple_token.go

@@ -118,8 +118,6 @@ func (t *tokenSimple) genTokenPrefix() (string, error) {
 
 func (t *tokenSimple) assignSimpleTokenToUser(username, token string) {
 	t.simpleTokensMu.Lock()
-	defer t.simpleTokensMu.Unlock()
-
 	_, ok := t.simpleTokens[token]
 	if ok {
 		plog.Panicf("token %s is alredy used", token)
@@ -127,6 +125,7 @@ func (t *tokenSimple) assignSimpleTokenToUser(username, token string) {
 
 	t.simpleTokens[token] = username
 	t.simpleTokenKeeper.addSimpleToken(token)
+	t.simpleTokensMu.Unlock()
 }
 
 func (t *tokenSimple) invalidateUser(username string) {

auth/store.go

@@ -162,9 +162,6 @@ type AuthStore interface {
 
 	// AuthInfoFromTLS gets AuthInfo from TLS info of gRPC's context
 	AuthInfoFromTLS(ctx context.Context) *AuthInfo
-
-	// WithRoot generates and installs a token that can be used as a root credential
-	WithRoot(ctx context.Context) context.Context
 }
 
 type TokenProvider interface {
@@ -995,17 +992,13 @@ func (as *authStore) AuthInfoFromTLS(ctx context.Context) *AuthInfo {
 }
 
 func (as *authStore) AuthInfoFromCtx(ctx context.Context) (*AuthInfo, error) {
-	md, ok := metadata.FromIncomingContext(ctx)
+	md, ok := metadata.FromContext(ctx)
 	if !ok {
 		return nil, nil
 	}
 
-	//TODO(mitake|hexfusion) review unifying key names
-	ts, ok := md["token"]
-	if !ok {
-		ts, ok = md["authorization"]
-	}
-	if !ok {
+	ts, tok := md["token"]
+	if !tok {
 		return nil, nil
 	}
 
@@ -1015,7 +1008,6 @@ func (as *authStore) AuthInfoFromCtx(ctx context.Context) (*AuthInfo, error) {
 		plog.Warningf("invalid auth token: %s", token)
 		return nil, ErrInvalidAuthToken
 	}
-
 	return authInfo, nil
 }
 
@@ -1065,35 +1057,3 @@ func NewTokenProvider(tokenOpts string, indexWaiter func(uint64) <-chan struct{}
 		return nil, ErrInvalidAuthOpts
 	}
 }
-
-func (as *authStore) WithRoot(ctx context.Context) context.Context {
-	if !as.isAuthEnabled() {
-		return ctx
-	}
-
-	var ctxForAssign context.Context
-	if ts := as.tokenProvider.(*tokenSimple); ts != nil {
-		ctx1 := context.WithValue(ctx, "index", uint64(0))
-		prefix, err := ts.genTokenPrefix()
-		if err != nil {
-			plog.Errorf("failed to generate prefix of internally used token")
-			return ctx
-		}
-		ctxForAssign = context.WithValue(ctx1, "simpleToken", prefix)
-	} else {
-		ctxForAssign = ctx
-	}
-
-	token, err := as.tokenProvider.assign(ctxForAssign, "root", as.Revision())
-	if err != nil {
-		// this must not happen
-		plog.Errorf("failed to assign token for lease revoking: %s", err)
-		return ctx
-	}
-
-	mdMap := map[string]string{
-		"token": token,
-	}
-	tokenMD := metadata.New(mdMap)
-	return metadata.NewContext(ctx, tokenMD)
-}

auth/store_test.go

@@ -453,8 +453,7 @@ func TestAuthInfoFromCtx(t *testing.T) {
 		t.Errorf("expected (nil, nil), got (%v, %v)", ai, err)
 	}
 
-	// as if it came from RPC
-	ctx = metadata.NewIncomingContext(context.Background(), metadata.New(map[string]string{"tokens": "dummy"}))
+	ctx = metadata.NewContext(context.Background(), metadata.New(map[string]string{"tokens": "dummy"}))
 	ai, err = as.AuthInfoFromCtx(ctx)
 	if err != nil && ai != nil {
 		t.Errorf("expected (nil, nil), got (%v, %v)", ai, err)
@@ -466,19 +465,19 @@ func TestAuthInfoFromCtx(t *testing.T) {
 		t.Error(err)
 	}
 
-	ctx = metadata.NewIncomingContext(context.Background(), metadata.New(map[string]string{"token": "Invalid Token"}))
+	ctx = metadata.NewContext(context.Background(), metadata.New(map[string]string{"token": "Invalid Token"}))
 	_, err = as.AuthInfoFromCtx(ctx)
 	if err != ErrInvalidAuthToken {
 		t.Errorf("expected %v, got %v", ErrInvalidAuthToken, err)
 	}
 
-	ctx = metadata.NewIncomingContext(context.Background(), metadata.New(map[string]string{"token": "Invalid.Token"}))
+	ctx = metadata.NewContext(context.Background(), metadata.New(map[string]string{"token": "Invalid.Token"}))
 	_, err = as.AuthInfoFromCtx(ctx)
 	if err != ErrInvalidAuthToken {
 		t.Errorf("expected %v, got %v", ErrInvalidAuthToken, err)
 	}
 
-	ctx = metadata.NewIncomingContext(context.Background(), metadata.New(map[string]string{"token": resp.Token}))
+	ctx = metadata.NewContext(context.Background(), metadata.New(map[string]string{"token": resp.Token}))
 	ai, err = as.AuthInfoFromCtx(ctx)
 	if err != nil {
 		t.Error(err)
@@ -522,7 +521,7 @@ func TestAuthInfoFromCtxRace(t *testing.T) {
 	donec := make(chan struct{})
 	go func() {
 		defer close(donec)
-		ctx := metadata.NewIncomingContext(context.Background(), metadata.New(map[string]string{"token": "test"}))
+		ctx := metadata.NewContext(context.Background(), metadata.New(map[string]string{"token": "test"}))
 		as.AuthInfoFromCtx(ctx)
 	}()
 	as.UserAdd(&pb.AuthUserAddRequest{Name: "test"})

bill-of-materials.json

@@ -345,15 +345,6 @@
 			}
 		]
 	},
-	{
-		"project": "google.golang.org/genproto/googleapis/rpc/status",
-		"licenses": [
-			{
-				"type": "Apache License 2.0",
-				"confidence": 1
-			}
-		]
-	},
 	{
 		"project": "google.golang.org/grpc",
 		"licenses": [

client/doc.go

@@ -59,7 +59,7 @@ Use a custom context to set timeouts on your operations:
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	// set a new key, ignoring its previous state
+	// set a new key, ignoring it's previous state
 	_, err := kAPI.Set(ctx, "/ping", "pong", nil)
 	if err != nil {
 		if err == context.DeadlineExceeded {

client/example_keys_test.go

@@ -1,93 +0,0 @@
-// Copyright 2017 The etcd Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package client_test
-
-import (
-	"fmt"
-	"log"
-	"sort"
-
-	"github.com/coreos/etcd/client"
-	"golang.org/x/net/context"
-)
-
-func ExampleKeysAPI_directory() {
-	c, err := client.New(client.Config{
-		Endpoints: exampleEndpoints,
-		Transport: exampleTransport,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-	kapi := client.NewKeysAPI(c)
-
-	// Setting '/myNodes' to create a directory that will hold some keys.
-	o := client.SetOptions{Dir: true}
-	resp, err := kapi.Set(context.Background(), "/myNodes", "", &o)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Add keys to /myNodes directory.
-	resp, err = kapi.Set(context.Background(), "/myNodes/key1", "value1", nil)
-	if err != nil {
-		log.Fatal(err)
-	}
-	resp, err = kapi.Set(context.Background(), "/myNodes/key2", "value2", nil)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// fetch directory
-	resp, err = kapi.Get(context.Background(), "/myNodes", nil)
-	if err != nil {
-		log.Fatal(err)
-	}
-	// print directory keys
-	sort.Sort(resp.Node.Nodes)
-	for _, n := range resp.Node.Nodes {
-		fmt.Printf("Key: %q, Value: %q\n", n.Key, n.Value)
-	}
-
-	// Output:
-	// Key: "/myNodes/key1", Value: "value1"
-	// Key: "/myNodes/key2", Value: "value2"
-}
-
-func ExampleKeysAPI_setget() {
-	c, err := client.New(client.Config{
-		Endpoints: exampleEndpoints,
-		Transport: exampleTransport,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-	kapi := client.NewKeysAPI(c)
-
-	// Set key "/foo" to value "bar".
-	resp, err := kapi.Set(context.Background(), "/foo", "bar", nil)
-	if err != nil {
-		log.Fatal(err)
-	}
-	// Get key "/foo"
-	resp, err = kapi.Get(context.Background(), "/foo", nil)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	fmt.Printf("%q key has %q value\n", resp.Node.Key, resp.Node.Value)
-
-	// Output: "/foo" key has "bar" value
-}

client/main_test.go

@@ -1,77 +0,0 @@
-// Copyright 2017 The etcd Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package client_test
-
-import (
-	"fmt"
-	"net/http"
-	"os"
-	"regexp"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/coreos/etcd/integration"
-	"github.com/coreos/etcd/pkg/testutil"
-	"github.com/coreos/etcd/pkg/transport"
-)
-
-var exampleEndpoints []string
-var exampleTransport *http.Transport
-
-// TestMain sets up an etcd cluster if running the examples.
-func TestMain(m *testing.M) {
-	useCluster, hasRunArg := false, false // default to running only Test*
-	for _, arg := range os.Args {
-		if strings.HasPrefix(arg, "-test.run=") {
-			exp := strings.Split(arg, "=")[1]
-			match, err := regexp.MatchString(exp, "Example")
-			useCluster = (err == nil && match) || strings.Contains(exp, "Example")
-			hasRunArg = true
-			break
-		}
-	}
-	if !hasRunArg {
-		// force only running Test* if no args given to avoid leak false
-		// positives from having a long-running cluster for the examples.
-		os.Args = append(os.Args, "-test.run=Test")
-	}
-
-	v := 0
-	if useCluster {
-		tr, trerr := transport.NewTransport(transport.TLSInfo{}, time.Second)
-		if trerr != nil {
-			fmt.Fprintf(os.Stderr, "%v", trerr)
-			os.Exit(1)
-		}
-		cfg := integration.ClusterConfig{Size: 1}
-		clus := integration.NewClusterV3(nil, &cfg)
-		exampleEndpoints = []string{clus.Members[0].URL()}
-		exampleTransport = tr
-		v = m.Run()
-		clus.Terminate(nil)
-		if err := testutil.CheckAfterTest(time.Second); err != nil {
-			fmt.Fprintf(os.Stderr, "%v", err)
-			os.Exit(1)
-		}
-	} else {
-		v = m.Run()
-	}
-
-	if v == 0 && testutil.CheckLeakedGoroutine() {
-		os.Exit(1)
-	}
-	os.Exit(v)
-}

client/members.go

@@ -44,7 +44,7 @@ type Member struct {
 	PeerURLs []string `json:"peerURLs"`
 
 	// ClientURLs represents the HTTP(S) endpoints on which this Member
-	// serves its client-facing APIs.
+	// serves it's client-facing APIs.
 	ClientURLs []string `json:"clientURLs"`
 }
 

clientv3/client.go

@@ -333,7 +333,7 @@ func (c *Client) dial(endpoint string, dopts ...grpc.DialOption) (*grpc.ClientCo
 // when the cluster has a leader.
 func WithRequireLeader(ctx context.Context) context.Context {
 	md := metadata.Pairs(rpctypes.MetadataRequireLeaderKey, rpctypes.MetadataHasLeader)
-	return metadata.NewOutgoingContext(ctx, md)
+	return metadata.NewContext(ctx, md)
 }
 
 func newClient(cfg *Config) (*Client, error) {

clientv3/concurrency/mutex.go

@@ -49,9 +49,7 @@ func (m *Mutex) Lock(ctx context.Context) error {
 	put := v3.OpPut(m.myKey, "", v3.WithLease(s.Lease()))
 	// reuse key in case this session already holds the lock
 	get := v3.OpGet(m.myKey)
-	// fetch current holder to complete uncontended path with only one RPC
-	getOwner := v3.OpGet(m.pfx, v3.WithFirstCreate()...)
-	resp, err := client.Txn(ctx).If(cmp).Then(put, getOwner).Else(get, getOwner).Commit()
+	resp, err := client.Txn(ctx).If(cmp).Then(put).Else(get).Commit()
 	if err != nil {
 		return err
 	}
@@ -59,12 +57,6 @@ func (m *Mutex) Lock(ctx context.Context) error {
 	if !resp.Succeeded {
 		m.myRev = resp.Responses[0].GetResponseRange().Kvs[0].CreateRevision
 	}
-	// if no key on prefix / the minimum rev is key, already hold the lock
-	ownerKey := resp.Responses[1].GetResponseRange().Kvs
-	if len(ownerKey) == 0 || ownerKey[0].CreateRevision == m.myRev {
-		m.hdr = resp.Header
-		return nil
-	}
 
 	// wait for deletion revisions prior to myKey
 	hdr, werr := waitDeletes(ctx, client, m.pfx, m.myRev-1)

clientv3/integration/txn_test.go

@@ -20,7 +20,7 @@ import (
 	"time"
 
 	"github.com/coreos/etcd/clientv3"
-	"github.com/coreos/etcd/embed"
+	"github.com/coreos/etcd/etcdserver/api/v3rpc"
 	"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
 	"github.com/coreos/etcd/integration"
 	"github.com/coreos/etcd/pkg/testutil"
@@ -41,7 +41,7 @@ func TestTxnError(t *testing.T) {
 		t.Fatalf("expected %v, got %v", rpctypes.ErrDuplicateKey, err)
 	}
 
-	ops := make([]clientv3.Op, int(embed.DefaultMaxTxnOps+10))
+	ops := make([]clientv3.Op, v3rpc.MaxOpsPerTxn+10)
 	for i := range ops {
 		ops[i] = clientv3.OpPut(fmt.Sprintf("foo%d", i), "")
 	}

clientv3/lease.go

@@ -323,7 +323,7 @@ func (l *lessor) closeRequireLeader() {
 		reqIdxs := 0
 		// find all required leader channels, close, mark as nil
 		for i, ctx := range ka.ctxs {
-			md, ok := metadata.FromOutgoingContext(ctx)
+			md, ok := metadata.FromContext(ctx)
 			if !ok {
 				continue
 			}
@@ -386,7 +386,7 @@ func (l *lessor) recvKeepAliveLoop() (gerr error) {
 		close(l.donec)
 		l.loopErr = gerr
 		for _, ka := range l.keepAlives {
-			ka.close()
+			ka.Close()
 		}
 		l.keepAlives = make(map[LeaseID]*keepAlive)
 		l.mu.Unlock()
@@ -467,7 +467,7 @@ func (l *lessor) recvKeepAlive(resp *pb.LeaseKeepAliveResponse) {
 	if karesp.TTL <= 0 {
 		// lease expired; close all keep alive channels
 		delete(l.keepAlives, karesp.ID)
-		ka.close()
+		ka.Close()
 		return
 	}
 
@@ -497,7 +497,7 @@ func (l *lessor) deadlineLoop() {
 		for id, ka := range l.keepAlives {
 			if ka.deadline.Before(now) {
 				// waited too long for response; lease may be expired
-				ka.close()
+				ka.Close()
 				delete(l.keepAlives, id)
 			}
 		}
@@ -539,7 +539,7 @@ func (l *lessor) sendKeepAliveLoop(stream pb.Lease_LeaseKeepAliveClient) {
 	}
 }
 
-func (ka *keepAlive) close() {
+func (ka *keepAlive) Close() {
 	close(ka.donec)
 	for _, ch := range ka.chs {
 		close(ch)

clientv3/main_test.go

@@ -32,21 +32,15 @@ func init() { auth.BcryptCost = bcrypt.MinCost }
 
 // TestMain sets up an etcd cluster if running the examples.
 func TestMain(m *testing.M) {
-	useCluster, hasRunArg := false, false // default to running only Test*
+	useCluster := true // default to running all tests
 	for _, arg := range os.Args {
 		if strings.HasPrefix(arg, "-test.run=") {
 			exp := strings.Split(arg, "=")[1]
 			match, err := regexp.MatchString(exp, "Example")
 			useCluster = (err == nil && match) || strings.Contains(exp, "Example")
-			hasRunArg = true
 			break
 		}
 	}
-	if !hasRunArg {
-		// force only running Test* if no args given to avoid leak false
-		// positives from having a long-running cluster for the examples.
-		os.Args = append(os.Args, "-test.run=Test")
-	}
 
 	v := 0
 	if useCluster {

clientv3/watch.go

@@ -40,9 +40,10 @@ type WatchChan <-chan WatchResponse
 
 type Watcher interface {
 	// Watch watches on a key or prefix. The watched events will be returned
-	// through the returned channel. If revisions waiting to be sent over the
-	// watch are compacted, then the watch will be canceled by the server, the
-	// client will post a compacted error watch response, and the channel will close.
+	// through the returned channel.
+	// If the watch is slow or the required rev is compacted, the watch request
+	// might be canceled from the server-side and the chan will be closed.
+	// 'opts' can be: 'WithRev' and/or 'WithPrefix'.
 	Watch(ctx context.Context, key string, opts ...OpOption) WatchChan
 
 	// Close closes the watcher and cancels all watch requests.
@@ -316,14 +317,14 @@ func (w *watcher) Close() (err error) {
 	w.streams = nil
 	w.mu.Unlock()
 	for _, wgs := range streams {
-		if werr := wgs.close(); werr != nil {
+		if werr := wgs.Close(); werr != nil {
 			err = werr
 		}
 	}
 	return err
 }
 
-func (w *watchGrpcStream) close() (err error) {
+func (w *watchGrpcStream) Close() (err error) {
 	w.cancel()
 	<-w.donec
 	select {

cmd/vendor/github.com/cpuguy83/go-md2man/md2man/roff.go

@@ -118,24 +118,11 @@ func (r *roffRenderer) Paragraph(out *bytes.Buffer, text func() bool) {
 	}
 }
 
+// TODO: This might now work
 func (r *roffRenderer) Table(out *bytes.Buffer, header []byte, body []byte, columnData []int) {
-	out.WriteString("\n.TS\nallbox;\n")
+	out.WriteString(".TS\nallbox;\n")
 
-	max_delims := 0
-	lines := strings.Split(strings.TrimRight(string(header), "\n")+"\n"+strings.TrimRight(string(body), "\n"), "\n")
-	for _, w := range lines {
-		cur_delims := strings.Count(w, "\t")
-		if cur_delims > max_delims {
-			max_delims = cur_delims
-		}
-	}
-	out.Write([]byte(strings.Repeat("l ", max_delims+1) + "\n"))
-	out.Write([]byte(strings.Repeat("l ", max_delims+1) + ".\n"))
 	out.Write(header)
-	if len(header) > 0 {
-		out.Write([]byte("\n"))
-	}
-
 	out.Write(body)
 	out.WriteString("\n.TE\n")
 }
@@ -145,30 +132,24 @@ func (r *roffRenderer) TableRow(out *bytes.Buffer, text []byte) {
 		out.WriteString("\n")
 	}
 	out.Write(text)
+	out.WriteString("\n")
 }
 
 func (r *roffRenderer) TableHeaderCell(out *bytes.Buffer, text []byte, align int) {
 	if out.Len() > 0 {
-		out.WriteString("\t")
+		out.WriteString(" ")
 	}
-	if len(text) == 0 {
-		text = []byte{' '}
-	}
-	out.Write([]byte("\\fB\\fC" + string(text) + "\\fR"))
+	out.Write(text)
+	out.WriteString(" ")
 }
 
+// TODO: This is probably broken
 func (r *roffRenderer) TableCell(out *bytes.Buffer, text []byte, align int) {
 	if out.Len() > 0 {
 		out.WriteString("\t")
 	}
-	if len(text) > 30 {
-		text = append([]byte("T{\n"), text...)
-		text = append(text, []byte("\nT}")...)
-	}
-	if len(text) == 0 {
-		text = []byte{' '}
-	}
 	out.Write(text)
+	out.WriteString("\t")
 }
 
 func (r *roffRenderer) Footnotes(out *bytes.Buffer, text func() bool) {

cmd/vendor/github.com/gogo/protobuf/proto/decode.go

@@ -61,6 +61,7 @@ var ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for
 // int32, int64, uint32, uint64, bool, and enum
 // protocol buffer types.
 func DecodeVarint(buf []byte) (x uint64, n int) {
+	// x, n already 0
 	for shift := uint(0); shift < 64; shift += 7 {
 		if n >= len(buf) {
 			return 0, 0
@@ -77,7 +78,13 @@ func DecodeVarint(buf []byte) (x uint64, n int) {
 	return 0, 0
 }
 
-func (p *Buffer) decodeVarintSlow() (x uint64, err error) {
+// DecodeVarint reads a varint-encoded integer from the Buffer.
+// This is the format for the
+// int32, int64, uint32, uint64, bool, and enum
+// protocol buffer types.
+func (p *Buffer) DecodeVarint() (x uint64, err error) {
+	// x, err already 0
+
 	i := p.index
 	l := len(p.buf)
 
@@ -100,107 +107,6 @@ func (p *Buffer) decodeVarintSlow() (x uint64, err error) {
 	return
 }
 
-// DecodeVarint reads a varint-encoded integer from the Buffer.
-// This is the format for the
-// int32, int64, uint32, uint64, bool, and enum
-// protocol buffer types.
-func (p *Buffer) DecodeVarint() (x uint64, err error) {
-	i := p.index
-	buf := p.buf
-
-	if i >= len(buf) {
-		return 0, io.ErrUnexpectedEOF
-	} else if buf[i] < 0x80 {
-		p.index++
-		return uint64(buf[i]), nil
-	} else if len(buf)-i < 10 {
-		return p.decodeVarintSlow()
-	}
-
-	var b uint64
-	// we already checked the first byte
-	x = uint64(buf[i]) - 0x80
-	i++
-
-	b = uint64(buf[i])
-	i++
-	x += b << 7
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 7
-
-	b = uint64(buf[i])
-	i++
-	x += b << 14
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 14
-
-	b = uint64(buf[i])
-	i++
-	x += b << 21
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 21
-
-	b = uint64(buf[i])
-	i++
-	x += b << 28
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 28
-
-	b = uint64(buf[i])
-	i++
-	x += b << 35
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 35
-
-	b = uint64(buf[i])
-	i++
-	x += b << 42
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 42
-
-	b = uint64(buf[i])
-	i++
-	x += b << 49
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 49
-
-	b = uint64(buf[i])
-	i++
-	x += b << 56
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 56
-
-	b = uint64(buf[i])
-	i++
-	x += b << 63
-	if b&0x80 == 0 {
-		goto done
-	}
-	// x -= 0x80 << 63 // Always zero.
-
-	return 0, errOverflow
-
-done:
-	p.index = i
-	return x, nil
-}
-
 // DecodeFixed64 reads a 64-bit integer from the Buffer.
 // This is the format for the
 // fixed64, sfixed64, and double protocol buffer types.
@@ -434,8 +340,6 @@ func (p *Buffer) DecodeGroup(pb Message) error {
 // Buffer and places the decoded result in pb.  If the struct
 // underlying pb does not match the data in the buffer, the results can be
 // unpredictable.
-//
-// Unlike proto.Unmarshal, this does not reset pb before starting to unmarshal.
 func (p *Buffer) Unmarshal(pb Message) error {
 	// If the object can unmarshal itself, let it.
 	if u, ok := pb.(Unmarshaler); ok {

cmd/vendor/github.com/gogo/protobuf/proto/decode_gogo.go

@@ -98,7 +98,7 @@ func setPtrCustomType(base structPointer, f field, v interface{}) {
 	if v == nil {
 		return
 	}
-	structPointer_SetStructPointer(base, f, toStructPointer(reflect.ValueOf(v)))
+	structPointer_SetStructPointer(base, f, structPointer(reflect.ValueOf(v).Pointer()))
 }
 
 func setCustomType(base structPointer, f field, value interface{}) {
@@ -165,8 +165,7 @@ func (o *Buffer) dec_custom_slice_bytes(p *Properties, base structPointer) error
 	}
 	newBas := appendStructPointer(base, p.field, p.ctype)
 
-	var zero field
-	setCustomType(newBas, zero, custom)
+	setCustomType(newBas, 0, custom)
 
 	return nil
 }

cmd/vendor/github.com/gogo/protobuf/proto/duration.go

@@ -1,100 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2016 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-// This file implements conversions between google.protobuf.Duration
-// and time.Duration.
-
-import (
-	"errors"
-	"fmt"
-	"time"
-)
-
-const (
-	// Range of a Duration in seconds, as specified in
-	// google/protobuf/duration.proto. This is about 10,000 years in seconds.
-	maxSeconds = int64(10000 * 365.25 * 24 * 60 * 60)
-	minSeconds = -maxSeconds
-)
-
-// validateDuration determines whether the Duration is valid according to the
-// definition in google/protobuf/duration.proto. A valid Duration
-// may still be too large to fit into a time.Duration (the range of Duration
-// is about 10,000 years, and the range of time.Duration is about 290).
-func validateDuration(d *duration) error {
-	if d == nil {
-		return errors.New("duration: nil Duration")
-	}
-	if d.Seconds < minSeconds || d.Seconds > maxSeconds {
-		return fmt.Errorf("duration: %#v: seconds out of range", d)
-	}
-	if d.Nanos <= -1e9 || d.Nanos >= 1e9 {
-		return fmt.Errorf("duration: %#v: nanos out of range", d)
-	}
-	// Seconds and Nanos must have the same sign, unless d.Nanos is zero.
-	if (d.Seconds < 0 && d.Nanos > 0) || (d.Seconds > 0 && d.Nanos < 0) {
-		return fmt.Errorf("duration: %#v: seconds and nanos have different signs", d)
-	}
-	return nil
-}
-
-// DurationFromProto converts a Duration to a time.Duration. DurationFromProto
-// returns an error if the Duration is invalid or is too large to be
-// represented in a time.Duration.
-func durationFromProto(p *duration) (time.Duration, error) {
-	if err := validateDuration(p); err != nil {
-		return 0, err
-	}
-	d := time.Duration(p.Seconds) * time.Second
-	if int64(d/time.Second) != p.Seconds {
-		return 0, fmt.Errorf("duration: %#v is out of range for time.Duration", p)
-	}
-	if p.Nanos != 0 {
-		d += time.Duration(p.Nanos)
-		if (d < 0) != (p.Nanos < 0) {
-			return 0, fmt.Errorf("duration: %#v is out of range for time.Duration", p)
-		}
-	}
-	return d, nil
-}
-
-// DurationProto converts a time.Duration to a Duration.
-func durationProto(d time.Duration) *duration {
-	nanos := d.Nanoseconds()
-	secs := nanos / 1e9
-	nanos -= secs * 1e9
-	return &duration{
-		Seconds: secs,
-		Nanos:   int32(nanos),
-	}
-}

cmd/vendor/github.com/gogo/protobuf/proto/duration_gogo.go

@@ -1,203 +0,0 @@
-// Protocol Buffers for Go with Gadgets
-//
-// Copyright (c) 2016, The GoGo Authors. All rights reserved.
-// http://github.com/gogo/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-import (
-	"reflect"
-	"time"
-)
-
-var durationType = reflect.TypeOf((*time.Duration)(nil)).Elem()
-
-type duration struct {
-	Seconds int64 `protobuf:"varint,1,opt,name=seconds,proto3" json:"seconds,omitempty"`
-	Nanos   int32 `protobuf:"varint,2,opt,name=nanos,proto3" json:"nanos,omitempty"`
-}
-
-func (m *duration) Reset()       { *m = duration{} }
-func (*duration) ProtoMessage()  {}
-func (*duration) String() string { return "duration<string>" }
-
-func init() {
-	RegisterType((*duration)(nil), "gogo.protobuf.proto.duration")
-}
-
-func (o *Buffer) decDuration() (time.Duration, error) {
-	b, err := o.DecodeRawBytes(true)
-	if err != nil {
-		return 0, err
-	}
-	dproto := &duration{}
-	if err := Unmarshal(b, dproto); err != nil {
-		return 0, err
-	}
-	return durationFromProto(dproto)
-}
-
-func (o *Buffer) dec_duration(p *Properties, base structPointer) error {
-	d, err := o.decDuration()
-	if err != nil {
-		return err
-	}
-	word64_Set(structPointer_Word64(base, p.field), o, uint64(d))
-	return nil
-}
-
-func (o *Buffer) dec_ref_duration(p *Properties, base structPointer) error {
-	d, err := o.decDuration()
-	if err != nil {
-		return err
-	}
-	word64Val_Set(structPointer_Word64Val(base, p.field), o, uint64(d))
-	return nil
-}
-
-func (o *Buffer) dec_slice_duration(p *Properties, base structPointer) error {
-	d, err := o.decDuration()
-	if err != nil {
-		return err
-	}
-	newBas := appendStructPointer(base, p.field, reflect.SliceOf(reflect.PtrTo(durationType)))
-	var zero field
-	setPtrCustomType(newBas, zero, &d)
-	return nil
-}
-
-func (o *Buffer) dec_slice_ref_duration(p *Properties, base structPointer) error {
-	d, err := o.decDuration()
-	if err != nil {
-		return err
-	}
-	structPointer_Word64Slice(base, p.field).Append(uint64(d))
-	return nil
-}
-
-func size_duration(p *Properties, base structPointer) (n int) {
-	structp := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(structp) {
-		return 0
-	}
-	dur := structPointer_Interface(structp, durationType).(*time.Duration)
-	d := durationProto(*dur)
-	size := Size(d)
-	return size + sizeVarint(uint64(size)) + len(p.tagcode)
-}
-
-func (o *Buffer) enc_duration(p *Properties, base structPointer) error {
-	structp := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(structp) {
-		return ErrNil
-	}
-	dur := structPointer_Interface(structp, durationType).(*time.Duration)
-	d := durationProto(*dur)
-	data, err := Marshal(d)
-	if err != nil {
-		return err
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeRawBytes(data)
-	return nil
-}
-
-func size_ref_duration(p *Properties, base structPointer) (n int) {
-	dur := structPointer_InterfaceAt(base, p.field, durationType).(*time.Duration)
-	d := durationProto(*dur)
-	size := Size(d)
-	return size + sizeVarint(uint64(size)) + len(p.tagcode)
-}
-
-func (o *Buffer) enc_ref_duration(p *Properties, base structPointer) error {
-	dur := structPointer_InterfaceAt(base, p.field, durationType).(*time.Duration)
-	d := durationProto(*dur)
-	data, err := Marshal(d)
-	if err != nil {
-		return err
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeRawBytes(data)
-	return nil
-}
-
-func size_slice_duration(p *Properties, base structPointer) (n int) {
-	pdurs := structPointer_InterfaceAt(base, p.field, reflect.SliceOf(reflect.PtrTo(durationType))).(*[]*time.Duration)
-	durs := *pdurs
-	for i := 0; i < len(durs); i++ {
-		if durs[i] == nil {
-			return 0
-		}
-		dproto := durationProto(*durs[i])
-		size := Size(dproto)
-		n += len(p.tagcode) + size + sizeVarint(uint64(size))
-	}
-	return n
-}
-
-func (o *Buffer) enc_slice_duration(p *Properties, base structPointer) error {
-	pdurs := structPointer_InterfaceAt(base, p.field, reflect.SliceOf(reflect.PtrTo(durationType))).(*[]*time.Duration)
-	durs := *pdurs
-	for i := 0; i < len(durs); i++ {
-		if durs[i] == nil {
-			return errRepeatedHasNil
-		}
-		dproto := durationProto(*durs[i])
-		data, err := Marshal(dproto)
-		if err != nil {
-			return err
-		}
-		o.buf = append(o.buf, p.tagcode...)
-		o.EncodeRawBytes(data)
-	}
-	return nil
-}
-
-func size_slice_ref_duration(p *Properties, base structPointer) (n int) {
-	pdurs := structPointer_InterfaceAt(base, p.field, reflect.SliceOf(durationType)).(*[]time.Duration)
-	durs := *pdurs
-	for i := 0; i < len(durs); i++ {
-		dproto := durationProto(durs[i])
-		size := Size(dproto)
-		n += len(p.tagcode) + size + sizeVarint(uint64(size))
-	}
-	return n
-}
-
-func (o *Buffer) enc_slice_ref_duration(p *Properties, base structPointer) error {
-	pdurs := structPointer_InterfaceAt(base, p.field, reflect.SliceOf(durationType)).(*[]time.Duration)
-	durs := *pdurs
-	for i := 0; i < len(durs); i++ {
-		dproto := durationProto(durs[i])
-		data, err := Marshal(dproto)
-		if err != nil {
-			return err
-		}
-		o.buf = append(o.buf, p.tagcode...)
-		o.EncodeRawBytes(data)
-	}
-	return nil
-}

cmd/vendor/github.com/gogo/protobuf/proto/encode.go

@@ -234,6 +234,10 @@ func Marshal(pb Message) ([]byte, error) {
 	}
 	p := NewBuffer(nil)
 	err := p.Marshal(pb)
+	var state errorState
+	if err != nil && !state.shouldContinue(err, nil) {
+		return nil, err
+	}
 	if p.buf == nil && err == nil {
 		// Return a non-nil slice on success.
 		return []byte{}, nil
@@ -262,9 +266,12 @@ func (p *Buffer) Marshal(pb Message) error {
 	// Can the object marshal itself?
 	if m, ok := pb.(Marshaler); ok {
 		data, err := m.Marshal()
-		p.buf = append(p.buf, data...)
+		if err != nil {
 			return err
 		}
+		p.buf = append(p.buf, data...)
+		return nil
+	}
 
 	t, base, err := getbase(pb)
 	if structPointer_IsNil(base) {
@@ -275,7 +282,7 @@ func (p *Buffer) Marshal(pb Message) error {
 	}
 
 	if collectStats {
-		(stats).Encode++ // Parens are to work around a goimports bug.
+		stats.Encode++
 	}
 
 	if len(p.buf) > maxMarshalSize {
@@ -302,7 +309,7 @@ func Size(pb Message) (n int) {
 	}
 
 	if collectStats {
-		(stats).Size++ // Parens are to work around a goimports bug.
+		stats.Size++
 	}
 
 	return
@@ -1007,6 +1014,7 @@ func size_slice_struct_message(p *Properties, base structPointer) (n int) {
 		if p.isMarshaler {
 			m := structPointer_Interface(structp, p.stype).(Marshaler)
 			data, _ := m.Marshal()
+			n += len(p.tagcode)
 			n += sizeRawBytes(data)
 			continue
 		}
@@ -1075,17 +1083,10 @@ func (o *Buffer) enc_map(p *Properties, base structPointer) error {
 
 func (o *Buffer) enc_exts(p *Properties, base structPointer) error {
 	exts := structPointer_Extensions(base, p.field)
-
-	v, mu := exts.extensionsRead()
-	if v == nil {
-		return nil
-	}
-
-	mu.Lock()
-	defer mu.Unlock()
-	if err := encodeExtensionsMap(v); err != nil {
+	if err := encodeExtensions(exts); err != nil {
 		return err
 	}
+	v, _ := exts.extensionsRead()
 
 	return o.enc_map_body(v)
 }

cmd/vendor/github.com/gogo/protobuf/proto/encode_gogo.go

@@ -196,10 +196,12 @@ func size_ref_struct_message(p *Properties, base structPointer) int {
 // Encode a slice of references to message struct pointers ([]struct).
 func (o *Buffer) enc_slice_ref_struct_message(p *Properties, base structPointer) error {
 	var state errorState
-	ss := structPointer_StructRefSlice(base, p.field, p.stype.Size())
-	l := ss.Len()
+	ss := structPointer_GetStructPointer(base, p.field)
+	ss1 := structPointer_GetRefStructPointer(ss, field(0))
+	size := p.stype.Size()
+	l := structPointer_Len(base, p.field)
 	for i := 0; i < l; i++ {
-		structp := ss.Index(i)
+		structp := structPointer_Add(ss1, field(uintptr(i)*size))
 		if structPointer_IsNil(structp) {
 			return errRepeatedHasNil
 		}
@@ -231,11 +233,13 @@ func (o *Buffer) enc_slice_ref_struct_message(p *Properties, base structPointer)
 
 //TODO this is only copied, please fix this
 func size_slice_ref_struct_message(p *Properties, base structPointer) (n int) {
-	ss := structPointer_StructRefSlice(base, p.field, p.stype.Size())
-	l := ss.Len()
+	ss := structPointer_GetStructPointer(base, p.field)
+	ss1 := structPointer_GetRefStructPointer(ss, field(0))
+	size := p.stype.Size()
+	l := structPointer_Len(base, p.field)
 	n += l * len(p.tagcode)
 	for i := 0; i < l; i++ {
-		structp := ss.Index(i)
+		structp := structPointer_Add(ss1, field(uintptr(i)*size))
 		if structPointer_IsNil(structp) {
 			return // return the size up to this point
 		}

cmd/vendor/github.com/gogo/protobuf/proto/equal.go

@@ -54,17 +54,13 @@ Equality is defined in this way:
     in a proto3 .proto file, fields are not "set"; specifically,
     zero length proto3 "bytes" fields are equal (nil == {}).
   - Two repeated fields are equal iff their lengths are the same,
-    and their corresponding elements are equal. Note a "bytes" field,
-    although represented by []byte, is not a repeated field and the
-    rule for the scalar fields described above applies.
+    and their corresponding elements are equal (a "bytes" field,
+    although represented by []byte, is not a repeated field)
   - Two unset fields are equal.
   - Two unknown field sets are equal if their current
     encoded state is equal.
   - Two extension sets are equal iff they have corresponding
     elements that are pairwise equal.
-  - Two map fields are equal iff their lengths are the same,
-    and they contain the same set of elements. Zero-length map
-    fields are equal.
   - Every other combination of things are not equal.
 
 The return value is undefined if a and b are not protocol buffers.

cmd/vendor/github.com/gogo/protobuf/proto/extensions.go

@@ -167,7 +167,6 @@ type ExtensionDesc struct {
 	Field         int32       // field number
 	Name          string      // fully-qualified name of extension, for text formatting
 	Tag           string      // protobuf tag style
-	Filename      string      // name of the file in which the extension is defined
 }
 
 func (ed *ExtensionDesc) repeated() bool {
@@ -588,9 +587,6 @@ func ExtensionDescs(pb Message) ([]*ExtensionDesc, error) {
 	registeredExtensions := RegisteredExtensions(pb)
 
 	emap, mu := epb.extensionsRead()
-	if emap == nil {
-		return nil, nil
-	}
 	mu.Lock()
 	defer mu.Unlock()
 	extensions := make([]*ExtensionDesc, 0, len(emap))

cmd/vendor/github.com/gogo/protobuf/proto/lib.go

@@ -308,7 +308,7 @@ func GetStats() Stats { return stats }
 // temporary Buffer and are fine for most applications.
 type Buffer struct {
 	buf   []byte // encode/decode byte stream
-	index int    // read point
+	index int    // write point
 
 	// pools of basic types to amortize allocation.
 	bools   []bool

cmd/vendor/github.com/gogo/protobuf/proto/pointer_reflect_gogo.go

@@ -1,85 +0,0 @@
-// Protocol Buffers for Go with Gadgets
-//
-// Copyright (c) 2016, The GoGo Authors. All rights reserved.
-// http://github.com/gogo/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// +build appengine js
-
-package proto
-
-import (
-	"reflect"
-)
-
-func structPointer_FieldPointer(p structPointer, f field) structPointer {
-	panic("not implemented")
-}
-
-func appendStructPointer(base structPointer, f field, typ reflect.Type) structPointer {
-	panic("not implemented")
-}
-
-func structPointer_InterfaceAt(p structPointer, f field, t reflect.Type) interface{} {
-	panic("not implemented")
-}
-
-func structPointer_InterfaceRef(p structPointer, f field, t reflect.Type) interface{} {
-	panic("not implemented")
-}
-
-func structPointer_GetRefStructPointer(p structPointer, f field) structPointer {
-	panic("not implemented")
-}
-
-func structPointer_Add(p structPointer, size field) structPointer {
-	panic("not implemented")
-}
-
-func structPointer_Len(p structPointer, f field) int {
-	panic("not implemented")
-}
-
-func structPointer_GetSliceHeader(p structPointer, f field) *reflect.SliceHeader {
-	panic("not implemented")
-}
-
-func structPointer_Copy(oldptr structPointer, newptr structPointer, size int) {
-	panic("not implemented")
-}
-
-func structPointer_StructRefSlice(p structPointer, f field, size uintptr) *structRefSlice {
-	panic("not implemented")
-}
-
-type structRefSlice struct{}
-
-func (v *structRefSlice) Len() int {
-	panic("not implemented")
-}
-
-func (v *structRefSlice) Index(i int) structPointer {
-	panic("not implemented")
-}

cmd/vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go

@@ -26,7 +26,7 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// +build !appengine,!js
+// +build !appengine
 
 // This file contains the implementation of the proto field accesses using package unsafe.
 
@@ -105,24 +105,3 @@ func structPointer_Add(p structPointer, size field) structPointer {
 func structPointer_Len(p structPointer, f field) int {
 	return len(*(*[]interface{})(unsafe.Pointer(structPointer_GetRefStructPointer(p, f))))
 }
-
-func structPointer_StructRefSlice(p structPointer, f field, size uintptr) *structRefSlice {
-	return &structRefSlice{p: p, f: f, size: size}
-}
-
-// A structRefSlice represents a slice of structs (themselves submessages or groups).
-type structRefSlice struct {
-	p    structPointer
-	f    field
-	size uintptr
-}
-
-func (v *structRefSlice) Len() int {
-	return structPointer_Len(v.p, v.f)
-}
-
-func (v *structRefSlice) Index(i int) structPointer {
-	ss := structPointer_GetStructPointer(v.p, v.f)
-	ss1 := structPointer_GetRefStructPointer(ss, 0)
-	return structPointer_Add(ss1, field(uintptr(i)*v.size))
-}

cmd/vendor/github.com/gogo/protobuf/proto/properties.go

@@ -193,8 +193,7 @@ type Properties struct {
 	Default    string // default value
 	HasDefault bool   // whether an explicit default was provided
 	CustomType string
-	StdTime     bool
-	StdDuration bool
+	def_uint64 uint64
 
 	enc           encoder
 	valEnc        valueEncoder // set for bool and numeric types only
@@ -341,10 +340,6 @@ func (p *Properties) Parse(s string) {
 			p.OrigName = strings.Split(f, "=")[1]
 		case strings.HasPrefix(f, "customtype="):
 			p.CustomType = strings.Split(f, "=")[1]
-		case f == "stdtime":
-			p.StdTime = true
-		case f == "stdduration":
-			p.StdDuration = true
 		}
 	}
 }
@@ -360,22 +355,11 @@ func (p *Properties) setEncAndDec(typ reflect.Type, f *reflect.StructField, lock
 	p.enc = nil
 	p.dec = nil
 	p.size = nil
-	isMap := typ.Kind() == reflect.Map
-	if len(p.CustomType) > 0 && !isMap {
+	if len(p.CustomType) > 0 {
 		p.setCustomEncAndDec(typ)
 		p.setTag(lockGetProp)
 		return
 	}
-	if p.StdTime && !isMap {
-		p.setTimeEncAndDec(typ)
-		p.setTag(lockGetProp)
-		return
-	}
-	if p.StdDuration && !isMap {
-		p.setDurationEncAndDec(typ)
-		p.setTag(lockGetProp)
-		return
-	}
 	switch t1 := typ; t1.Kind() {
 	default:
 		fmt.Fprintf(os.Stderr, "proto: no coders for %v\n", t1)
@@ -646,10 +630,6 @@ func (p *Properties) setEncAndDec(typ reflect.Type, f *reflect.StructField, lock
 			// so we need encoders for the pointer to this type.
 			vtype = reflect.PtrTo(vtype)
 		}
-
-		p.mvalprop.CustomType = p.CustomType
-		p.mvalprop.StdDuration = p.StdDuration
-		p.mvalprop.StdTime = p.StdTime
 		p.mvalprop.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp)
 	}
 	p.setTag(lockGetProp)
@@ -940,15 +920,7 @@ func RegisterType(x Message, name string) {
 }
 
 // MessageName returns the fully-qualified proto name for the given message type.
-func MessageName(x Message) string {
-	type xname interface {
-		XXX_MessageName() string
-	}
-	if m, ok := x.(xname); ok {
-		return m.XXX_MessageName()
-	}
-	return revProtoTypes[reflect.TypeOf(x)]
-}
+func MessageName(x Message) string { return revProtoTypes[reflect.TypeOf(x)] }
 
 // MessageType returns the message type (pointer to struct) for a named message.
 func MessageType(name string) reflect.Type { return protoTypes[name] }

cmd/vendor/github.com/gogo/protobuf/proto/properties_gogo.go

@@ -51,51 +51,6 @@ func (p *Properties) setCustomEncAndDec(typ reflect.Type) {
 	}
 }
 
-func (p *Properties) setDurationEncAndDec(typ reflect.Type) {
-	if p.Repeated {
-		if typ.Elem().Kind() == reflect.Ptr {
-			p.enc = (*Buffer).enc_slice_duration
-			p.dec = (*Buffer).dec_slice_duration
-			p.size = size_slice_duration
-		} else {
-			p.enc = (*Buffer).enc_slice_ref_duration
-			p.dec = (*Buffer).dec_slice_ref_duration
-			p.size = size_slice_ref_duration
-		}
-	} else if typ.Kind() == reflect.Ptr {
-		p.enc = (*Buffer).enc_duration
-		p.dec = (*Buffer).dec_duration
-		p.size = size_duration
-	} else {
-		p.enc = (*Buffer).enc_ref_duration
-		p.dec = (*Buffer).dec_ref_duration
-		p.size = size_ref_duration
-	}
-}
-
-func (p *Properties) setTimeEncAndDec(typ reflect.Type) {
-	if p.Repeated {
-		if typ.Elem().Kind() == reflect.Ptr {
-			p.enc = (*Buffer).enc_slice_time
-			p.dec = (*Buffer).dec_slice_time
-			p.size = size_slice_time
-		} else {
-			p.enc = (*Buffer).enc_slice_ref_time
-			p.dec = (*Buffer).dec_slice_ref_time
-			p.size = size_slice_ref_time
-		}
-	} else if typ.Kind() == reflect.Ptr {
-		p.enc = (*Buffer).enc_time
-		p.dec = (*Buffer).dec_time
-		p.size = size_time
-	} else {
-		p.enc = (*Buffer).enc_ref_time
-		p.dec = (*Buffer).dec_ref_time
-		p.size = size_ref_time
-	}
-
-}
-
 func (p *Properties) setSliceOfNonPointerStructs(typ reflect.Type) {
 	t2 := typ.Elem()
 	p.sstype = typ

cmd/vendor/github.com/gogo/protobuf/proto/text.go

@@ -51,7 +51,6 @@ import (
 	"sort"
 	"strings"
 	"sync"
-	"time"
 )
 
 var (
@@ -182,93 +181,7 @@ type raw interface {
 	Bytes() []byte
 }
 
-func requiresQuotes(u string) bool {
-	// When type URL contains any characters except [0-9A-Za-z./\-]*, it must be quoted.
-	for _, ch := range u {
-		switch {
-		case ch == '.' || ch == '/' || ch == '_':
-			continue
-		case '0' <= ch && ch <= '9':
-			continue
-		case 'A' <= ch && ch <= 'Z':
-			continue
-		case 'a' <= ch && ch <= 'z':
-			continue
-		default:
-			return true
-		}
-	}
-	return false
-}
-
-// isAny reports whether sv is a google.protobuf.Any message
-func isAny(sv reflect.Value) bool {
-	type wkt interface {
-		XXX_WellKnownType() string
-	}
-	t, ok := sv.Addr().Interface().(wkt)
-	return ok && t.XXX_WellKnownType() == "Any"
-}
-
-// writeProto3Any writes an expanded google.protobuf.Any message.
-//
-// It returns (false, nil) if sv value can't be unmarshaled (e.g. because
-// required messages are not linked in).
-//
-// It returns (true, error) when sv was written in expanded format or an error
-// was encountered.
-func (tm *TextMarshaler) writeProto3Any(w *textWriter, sv reflect.Value) (bool, error) {
-	turl := sv.FieldByName("TypeUrl")
-	val := sv.FieldByName("Value")
-	if !turl.IsValid() || !val.IsValid() {
-		return true, errors.New("proto: invalid google.protobuf.Any message")
-	}
-
-	b, ok := val.Interface().([]byte)
-	if !ok {
-		return true, errors.New("proto: invalid google.protobuf.Any message")
-	}
-
-	parts := strings.Split(turl.String(), "/")
-	mt := MessageType(parts[len(parts)-1])
-	if mt == nil {
-		return false, nil
-	}
-	m := reflect.New(mt.Elem())
-	if err := Unmarshal(b, m.Interface().(Message)); err != nil {
-		return false, nil
-	}
-	w.Write([]byte("["))
-	u := turl.String()
-	if requiresQuotes(u) {
-		writeString(w, u)
-	} else {
-		w.Write([]byte(u))
-	}
-	if w.compact {
-		w.Write([]byte("]:<"))
-	} else {
-		w.Write([]byte("]: <\n"))
-		w.ind++
-	}
-	if err := tm.writeStruct(w, m.Elem()); err != nil {
-		return true, err
-	}
-	if w.compact {
-		w.Write([]byte("> "))
-	} else {
-		w.ind--
-		w.Write([]byte(">\n"))
-	}
-	return true, nil
-}
-
-func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
-	if tm.ExpandAny && isAny(sv) {
-		if canExpand, err := tm.writeProto3Any(w, sv); canExpand {
-			return err
-		}
-	}
+func writeStruct(w *textWriter, sv reflect.Value) error {
 	st := sv.Type()
 	sprops := GetProperties(st)
 	for i := 0; i < sv.NumField(); i++ {
@@ -321,10 +234,10 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
 					continue
 				}
 				if len(props.Enum) > 0 {
-					if err := tm.writeEnum(w, v, props); err != nil {
+					if err := writeEnum(w, v, props); err != nil {
 						return err
 					}
-				} else if err := tm.writeAny(w, v, props); err != nil {
+				} else if err := writeAny(w, v, props); err != nil {
 					return err
 				}
 				if err := w.WriteByte('\n'); err != nil {
@@ -366,7 +279,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
 						return err
 					}
 				}
-				if err := tm.writeAny(w, key, props.mkeyprop); err != nil {
+				if err := writeAny(w, key, props.mkeyprop); err != nil {
 					return err
 				}
 				if err := w.WriteByte('\n'); err != nil {
@@ -383,7 +296,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
 							return err
 						}
 					}
-					if err := tm.writeAny(w, val, props.mvalprop); err != nil {
+					if err := writeAny(w, val, props.mvalprop); err != nil {
 						return err
 					}
 					if err := w.WriteByte('\n'); err != nil {
@@ -455,10 +368,10 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
 		}
 
 		if len(props.Enum) > 0 {
-			if err := tm.writeEnum(w, fv, props); err != nil {
+			if err := writeEnum(w, fv, props); err != nil {
 				return err
 			}
-		} else if err := tm.writeAny(w, fv, props); err != nil {
+		} else if err := writeAny(w, fv, props); err != nil {
 			return err
 		}
 
@@ -476,7 +389,7 @@ func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
 		pv.Elem().Set(sv)
 	}
 	if pv.Type().Implements(extensionRangeType) {
-		if err := tm.writeExtensions(w, pv); err != nil {
+		if err := writeExtensions(w, pv); err != nil {
 			return err
 		}
 	}
@@ -506,11 +419,10 @@ func writeRaw(w *textWriter, b []byte) error {
 }
 
 // writeAny writes an arbitrary field.
-func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Properties) error {
+func writeAny(w *textWriter, v reflect.Value, props *Properties) error {
 	v = reflect.Indirect(v)
 
-	if props != nil {
-		if len(props.CustomType) > 0 {
+	if props != nil && len(props.CustomType) > 0 {
 		custom, ok := v.Interface().(Marshaler)
 		if ok {
 			data, err := custom.Marshal()
@@ -522,30 +434,6 @@ func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Propert
 			}
 			return nil
 		}
-		} else if props.StdTime {
-			t, ok := v.Interface().(time.Time)
-			if !ok {
-				return fmt.Errorf("stdtime is not time.Time, but %T", v.Interface())
-			}
-			tproto, err := timestampProto(t)
-			if err != nil {
-				return err
-			}
-			props.StdTime = false
-			err = tm.writeAny(w, reflect.ValueOf(tproto), props)
-			props.StdTime = true
-			return err
-		} else if props.StdDuration {
-			d, ok := v.Interface().(time.Duration)
-			if !ok {
-				return fmt.Errorf("stdtime is not time.Duration, but %T", v.Interface())
-			}
-			dproto := durationProto(d)
-			props.StdDuration = false
-			err := tm.writeAny(w, reflect.ValueOf(dproto), props)
-			props.StdDuration = true
-			return err
-		}
 	}
 
 	// Floats have special cases.
@@ -594,15 +482,15 @@ func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Propert
 			}
 		}
 		w.indent()
-		if etm, ok := v.Interface().(encoding.TextMarshaler); ok {
-			text, err := etm.MarshalText()
+		if tm, ok := v.Interface().(encoding.TextMarshaler); ok {
+			text, err := tm.MarshalText()
 			if err != nil {
 				return err
 			}
 			if _, err = w.Write(text); err != nil {
 				return err
 			}
-		} else if err := tm.writeStruct(w, v); err != nil {
+		} else if err := writeStruct(w, v); err != nil {
 			return err
 		}
 		w.unindent()
@@ -746,7 +634,7 @@ func (s int32Slice) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
 
 // writeExtensions writes all the extensions in pv.
 // pv is assumed to be a pointer to a protocol message struct that is extendable.
-func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error {
+func writeExtensions(w *textWriter, pv reflect.Value) error {
 	emap := extensionMaps[pv.Type().Elem()]
 	e := pv.Interface().(Message)
 
@@ -801,13 +689,13 @@ func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error
 
 		// Repeated extensions will appear as a slice.
 		if !desc.repeated() {
-			if err := tm.writeExtension(w, desc.Name, pb); err != nil {
+			if err := writeExtension(w, desc.Name, pb); err != nil {
 				return err
 			}
 		} else {
 			v := reflect.ValueOf(pb)
 			for i := 0; i < v.Len(); i++ {
-				if err := tm.writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil {
+				if err := writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil {
 					return err
 				}
 			}
@@ -816,7 +704,7 @@ func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error
 	return nil
 }
 
-func (tm *TextMarshaler) writeExtension(w *textWriter, name string, pb interface{}) error {
+func writeExtension(w *textWriter, name string, pb interface{}) error {
 	if _, err := fmt.Fprintf(w, "[%s]:", name); err != nil {
 		return err
 	}
@@ -825,7 +713,7 @@ func (tm *TextMarshaler) writeExtension(w *textWriter, name string, pb interface
 			return err
 		}
 	}
-	if err := tm.writeAny(w, reflect.ValueOf(pb), nil); err != nil {
+	if err := writeAny(w, reflect.ValueOf(pb), nil); err != nil {
 		return err
 	}
 	if err := w.WriteByte('\n'); err != nil {
@@ -853,12 +741,11 @@ func (w *textWriter) writeIndent() {
 // TextMarshaler is a configurable text format marshaler.
 type TextMarshaler struct {
 	Compact bool // use compact text format (one line).
-	ExpandAny bool // expand google.protobuf.Any messages of known types
 }
 
 // Marshal writes a given protocol buffer in text format.
 // The only errors returned are from w.
-func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
+func (m *TextMarshaler) Marshal(w io.Writer, pb Message) error {
 	val := reflect.ValueOf(pb)
 	if pb == nil || val.IsNil() {
 		w.Write([]byte("<nil>"))
@@ -873,11 +760,11 @@ func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
 	aw := &textWriter{
 		w:        ww,
 		complete: true,
-		compact:  tm.Compact,
+		compact:  m.Compact,
 	}
 
-	if etm, ok := pb.(encoding.TextMarshaler); ok {
-		text, err := etm.MarshalText()
+	if tm, ok := pb.(encoding.TextMarshaler); ok {
+		text, err := tm.MarshalText()
 		if err != nil {
 			return err
 		}
@@ -891,7 +778,7 @@ func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
 	}
 	// Dereference the received pointer so we don't have outer < and >.
 	v := reflect.Indirect(val)
-	if err := tm.writeStruct(aw, v); err != nil {
+	if err := writeStruct(aw, v); err != nil {
 		return err
 	}
 	if bw != nil {
@@ -901,9 +788,9 @@ func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
 }
 
 // Text is the same as Marshal, but returns the string directly.
-func (tm *TextMarshaler) Text(pb Message) string {
+func (m *TextMarshaler) Text(pb Message) string {
 	var buf bytes.Buffer
-	tm.Marshal(&buf, pb)
+	m.Marshal(&buf, pb)
 	return buf.String()
 }
 

cmd/vendor/github.com/gogo/protobuf/proto/text_gogo.go

@@ -33,10 +33,10 @@ import (
 	"reflect"
 )
 
-func (tm *TextMarshaler) writeEnum(w *textWriter, v reflect.Value, props *Properties) error {
+func writeEnum(w *textWriter, v reflect.Value, props *Properties) error {
 	m, ok := enumStringMaps[props.Enum]
 	if !ok {
-		if err := tm.writeAny(w, v, props); err != nil {
+		if err := writeAny(w, v, props); err != nil {
 			return err
 		}
 	}
@@ -48,7 +48,7 @@ func (tm *TextMarshaler) writeEnum(w *textWriter, v reflect.Value, props *Proper
 	}
 	s, ok := m[key]
 	if !ok {
-		if err := tm.writeAny(w, v, props); err != nil {
+		if err := writeAny(w, v, props); err != nil {
 			return err
 		}
 	}

cmd/vendor/github.com/gogo/protobuf/proto/text_parser.go

@@ -46,13 +46,9 @@ import (
 	"reflect"
 	"strconv"
 	"strings"
-	"time"
 	"unicode/utf8"
 )
 
-// Error string emitted when deserializing Any and fields are already set
-const anyRepeatedlyUnpacked = "Any message unpacked multiple times, or %q already set"
-
 type ParseError struct {
 	Message string
 	Line    int // 1-based line number
@@ -172,7 +168,7 @@ func (p *textParser) advance() {
 	p.cur.offset, p.cur.line = p.offset, p.line
 	p.cur.unquoted = ""
 	switch p.s[0] {
-	case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/':
+	case '<', '>', '{', '}', ':', '[', ']', ';', ',':
 		// Single symbol
 		p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
 	case '"', '\'':
@@ -460,10 +456,7 @@ func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
 	fieldSet := make(map[string]bool)
 	// A struct is a sequence of "name: value", terminated by one of
 	// '>' or '}', or the end of the input.  A name may also be
-	// "[extension]" or "[type/url]".
-	//
-	// The whole struct can also be an expanded Any message, like:
-	// [type/url] < ... struct contents ... >
+	// "[extension]".
 	for {
 		tok := p.next()
 		if tok.err != nil {
@@ -473,74 +466,33 @@ func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
 			break
 		}
 		if tok.value == "[" {
-			// Looks like an extension or an Any.
+			// Looks like an extension.
 			//
 			// TODO: Check whether we need to handle
 			// namespace rooted names (e.g. ".something.Foo").
-			extName, err := p.consumeExtName()
-			if err != nil {
-				return err
-			}
-
-			if s := strings.LastIndex(extName, "/"); s >= 0 {
-				// If it contains a slash, it's an Any type URL.
-				messageName := extName[s+1:]
-				mt := MessageType(messageName)
-				if mt == nil {
-					return p.errorf("unrecognized message %q in google.protobuf.Any", messageName)
-				}
 			tok = p.next()
 			if tok.err != nil {
 				return tok.err
 			}
-				// consume an optional colon
-				if tok.value == ":" {
-					tok = p.next()
-					if tok.err != nil {
-						return tok.err
-					}
-				}
-				var terminator string
-				switch tok.value {
-				case "<":
-					terminator = ">"
-				case "{":
-					terminator = "}"
-				default:
-					return p.errorf("expected '{' or '<', found %q", tok.value)
-				}
-				v := reflect.New(mt.Elem())
-				if pe := p.readStruct(v.Elem(), terminator); pe != nil {
-					return pe
-				}
-				b, err := Marshal(v.Interface().(Message))
-				if err != nil {
-					return p.errorf("failed to marshal message of type %q: %v", messageName, err)
-				}
-				if fieldSet["type_url"] {
-					return p.errorf(anyRepeatedlyUnpacked, "type_url")
-				}
-				if fieldSet["value"] {
-					return p.errorf(anyRepeatedlyUnpacked, "value")
-				}
-				sv.FieldByName("TypeUrl").SetString(extName)
-				sv.FieldByName("Value").SetBytes(b)
-				fieldSet["type_url"] = true
-				fieldSet["value"] = true
-				continue
-			}
-
 			var desc *ExtensionDesc
 			// This could be faster, but it's functional.
 			// TODO: Do something smarter than a linear scan.
 			for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) {
-				if d.Name == extName {
+				if d.Name == tok.value {
 					desc = d
 					break
 				}
 			}
 			if desc == nil {
-				return p.errorf("unrecognized extension %q", extName)
+				return p.errorf("unrecognized extension %q", tok.value)
+			}
+			// Check the extension terminator.
+			tok = p.next()
+			if tok.err != nil {
+				return tok.err
+			}
+			if tok.value != "]" {
+				return p.errorf("unrecognized extension terminator %q", tok.value)
 			}
 
 			props := &Properties{}
@@ -598,11 +550,7 @@ func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
 			props = oop.Prop
 			nv := reflect.New(oop.Type.Elem())
 			dst = nv.Elem().Field(0)
-			field := sv.Field(oop.Field)
-			if !field.IsNil() {
-				return p.errorf("field '%s' would overwrite already parsed oneof '%s'", name, sv.Type().Field(oop.Field).Name)
-			}
-			field.Set(nv)
+			sv.Field(oop.Field).Set(nv)
 		}
 		if !dst.IsValid() {
 			return p.errorf("unknown field name %q in %v", name, st)
@@ -709,35 +657,6 @@ func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
 	return reqFieldErr
 }
 
-// consumeExtName consumes extension name or expanded Any type URL and the
-// following ']'. It returns the name or URL consumed.
-func (p *textParser) consumeExtName() (string, error) {
-	tok := p.next()
-	if tok.err != nil {
-		return "", tok.err
-	}
-
-	// If extension name or type url is quoted, it's a single token.
-	if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] {
-		name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0]))
-		if err != nil {
-			return "", err
-		}
-		return name, p.consumeToken("]")
-	}
-
-	// Consume everything up to "]"
-	var parts []string
-	for tok.value != "]" {
-		parts = append(parts, tok.value)
-		tok = p.next()
-		if tok.err != nil {
-			return "", p.errorf("unrecognized type_url or extension name: %s", tok.err)
-		}
-	}
-	return strings.Join(parts, ""), nil
-}
-
 // consumeOptionalSeparator consumes an optional semicolon or comma.
 // It is used in readStruct to provide backward compatibility.
 func (p *textParser) consumeOptionalSeparator() error {
@@ -798,80 +717,6 @@ func (p *textParser) readAny(v reflect.Value, props *Properties) error {
 		}
 		return nil
 	}
-	if props.StdTime {
-		fv := v
-		p.back()
-		props.StdTime = false
-		tproto := &timestamp{}
-		err := p.readAny(reflect.ValueOf(tproto).Elem(), props)
-		props.StdTime = true
-		if err != nil {
-			return err
-		}
-		tim, err := timestampFromProto(tproto)
-		if err != nil {
-			return err
-		}
-		if props.Repeated {
-			t := reflect.TypeOf(v.Interface())
-			if t.Kind() == reflect.Slice {
-				if t.Elem().Kind() == reflect.Ptr {
-					ts := fv.Interface().([]*time.Time)
-					ts = append(ts, &tim)
-					fv.Set(reflect.ValueOf(ts))
-					return nil
-				} else {
-					ts := fv.Interface().([]time.Time)
-					ts = append(ts, tim)
-					fv.Set(reflect.ValueOf(ts))
-					return nil
-				}
-			}
-		}
-		if reflect.TypeOf(v.Interface()).Kind() == reflect.Ptr {
-			v.Set(reflect.ValueOf(&tim))
-		} else {
-			v.Set(reflect.Indirect(reflect.ValueOf(&tim)))
-		}
-		return nil
-	}
-	if props.StdDuration {
-		fv := v
-		p.back()
-		props.StdDuration = false
-		dproto := &duration{}
-		err := p.readAny(reflect.ValueOf(dproto).Elem(), props)
-		props.StdDuration = true
-		if err != nil {
-			return err
-		}
-		dur, err := durationFromProto(dproto)
-		if err != nil {
-			return err
-		}
-		if props.Repeated {
-			t := reflect.TypeOf(v.Interface())
-			if t.Kind() == reflect.Slice {
-				if t.Elem().Kind() == reflect.Ptr {
-					ds := fv.Interface().([]*time.Duration)
-					ds = append(ds, &dur)
-					fv.Set(reflect.ValueOf(ds))
-					return nil
-				} else {
-					ds := fv.Interface().([]time.Duration)
-					ds = append(ds, dur)
-					fv.Set(reflect.ValueOf(ds))
-					return nil
-				}
-			}
-		}
-		if reflect.TypeOf(v.Interface()).Kind() == reflect.Ptr {
-			v.Set(reflect.ValueOf(&dur))
-		} else {
-			v.Set(reflect.Indirect(reflect.ValueOf(&dur)))
-		}
-		return nil
-	}
 	switch fv := v; fv.Kind() {
 	case reflect.Slice:
 		at := v.Type()
@@ -914,12 +759,12 @@ func (p *textParser) readAny(v reflect.Value, props *Properties) error {
 		fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
 		return p.readAny(fv.Index(fv.Len()-1), props)
 	case reflect.Bool:
-		// true/1/t/True or false/f/0/False.
+		// Either "true", "false", 1 or 0.
 		switch tok.value {
-		case "true", "1", "t", "True":
+		case "true", "1":
 			fv.SetBool(true)
 			return nil
-		case "false", "0", "f", "False":
+		case "false", "0":
 			fv.SetBool(false)
 			return nil
 		}

cmd/vendor/github.com/gogo/protobuf/proto/timestamp.go

@@ -1,113 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2016 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-// This file implements operations on google.protobuf.Timestamp.
-
-import (
-	"errors"
-	"fmt"
-	"time"
-)
-
-const (
-	// Seconds field of the earliest valid Timestamp.
-	// This is time.Date(1, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
-	minValidSeconds = -62135596800
-	// Seconds field just after the latest valid Timestamp.
-	// This is time.Date(10000, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
-	maxValidSeconds = 253402300800
-)
-
-// validateTimestamp determines whether a Timestamp is valid.
-// A valid timestamp represents a time in the range
-// [0001-01-01, 10000-01-01) and has a Nanos field
-// in the range [0, 1e9).
-//
-// If the Timestamp is valid, validateTimestamp returns nil.
-// Otherwise, it returns an error that describes
-// the problem.
-//
-// Every valid Timestamp can be represented by a time.Time, but the converse is not true.
-func validateTimestamp(ts *timestamp) error {
-	if ts == nil {
-		return errors.New("timestamp: nil Timestamp")
-	}
-	if ts.Seconds < minValidSeconds {
-		return fmt.Errorf("timestamp: %#v before 0001-01-01", ts)
-	}
-	if ts.Seconds >= maxValidSeconds {
-		return fmt.Errorf("timestamp: %#v after 10000-01-01", ts)
-	}
-	if ts.Nanos < 0 || ts.Nanos >= 1e9 {
-		return fmt.Errorf("timestamp: %#v: nanos not in range [0, 1e9)", ts)
-	}
-	return nil
-}
-
-// TimestampFromProto converts a google.protobuf.Timestamp proto to a time.Time.
-// It returns an error if the argument is invalid.
-//
-// Unlike most Go functions, if Timestamp returns an error, the first return value
-// is not the zero time.Time. Instead, it is the value obtained from the
-// time.Unix function when passed the contents of the Timestamp, in the UTC
-// locale. This may or may not be a meaningful time; many invalid Timestamps
-// do map to valid time.Times.
-//
-// A nil Timestamp returns an error. The first return value in that case is
-// undefined.
-func timestampFromProto(ts *timestamp) (time.Time, error) {
-	// Don't return the zero value on error, because corresponds to a valid
-	// timestamp. Instead return whatever time.Unix gives us.
-	var t time.Time
-	if ts == nil {
-		t = time.Unix(0, 0).UTC() // treat nil like the empty Timestamp
-	} else {
-		t = time.Unix(ts.Seconds, int64(ts.Nanos)).UTC()
-	}
-	return t, validateTimestamp(ts)
-}
-
-// TimestampProto converts the time.Time to a google.protobuf.Timestamp proto.
-// It returns an error if the resulting Timestamp is invalid.
-func timestampProto(t time.Time) (*timestamp, error) {
-	seconds := t.Unix()
-	nanos := int32(t.Sub(time.Unix(seconds, 0)))
-	ts := &timestamp{
-		Seconds: seconds,
-		Nanos:   nanos,
-	}
-	if err := validateTimestamp(ts); err != nil {
-		return nil, err
-	}
-	return ts, nil
-}

cmd/vendor/github.com/gogo/protobuf/proto/timestamp_gogo.go

@@ -1,229 +0,0 @@
-// Protocol Buffers for Go with Gadgets
-//
-// Copyright (c) 2016, The GoGo Authors. All rights reserved.
-// http://github.com/gogo/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-import (
-	"reflect"
-	"time"
-)
-
-var timeType = reflect.TypeOf((*time.Time)(nil)).Elem()
-
-type timestamp struct {
-	Seconds int64 `protobuf:"varint,1,opt,name=seconds,proto3" json:"seconds,omitempty"`
-	Nanos   int32 `protobuf:"varint,2,opt,name=nanos,proto3" json:"nanos,omitempty"`
-}
-
-func (m *timestamp) Reset()       { *m = timestamp{} }
-func (*timestamp) ProtoMessage()  {}
-func (*timestamp) String() string { return "timestamp<string>" }
-
-func init() {
-	RegisterType((*timestamp)(nil), "gogo.protobuf.proto.timestamp")
-}
-
-func (o *Buffer) decTimestamp() (time.Time, error) {
-	b, err := o.DecodeRawBytes(true)
-	if err != nil {
-		return time.Time{}, err
-	}
-	tproto := &timestamp{}
-	if err := Unmarshal(b, tproto); err != nil {
-		return time.Time{}, err
-	}
-	return timestampFromProto(tproto)
-}
-
-func (o *Buffer) dec_time(p *Properties, base structPointer) error {
-	t, err := o.decTimestamp()
-	if err != nil {
-		return err
-	}
-	setPtrCustomType(base, p.field, &t)
-	return nil
-}
-
-func (o *Buffer) dec_ref_time(p *Properties, base structPointer) error {
-	t, err := o.decTimestamp()
-	if err != nil {
-		return err
-	}
-	setCustomType(base, p.field, &t)
-	return nil
-}
-
-func (o *Buffer) dec_slice_time(p *Properties, base structPointer) error {
-	t, err := o.decTimestamp()
-	if err != nil {
-		return err
-	}
-	newBas := appendStructPointer(base, p.field, reflect.SliceOf(reflect.PtrTo(timeType)))
-	var zero field
-	setPtrCustomType(newBas, zero, &t)
-	return nil
-}
-
-func (o *Buffer) dec_slice_ref_time(p *Properties, base structPointer) error {
-	t, err := o.decTimestamp()
-	if err != nil {
-		return err
-	}
-	newBas := appendStructPointer(base, p.field, reflect.SliceOf(timeType))
-	var zero field
-	setCustomType(newBas, zero, &t)
-	return nil
-}
-
-func size_time(p *Properties, base structPointer) (n int) {
-	structp := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(structp) {
-		return 0
-	}
-	tim := structPointer_Interface(structp, timeType).(*time.Time)
-	t, err := timestampProto(*tim)
-	if err != nil {
-		return 0
-	}
-	size := Size(t)
-	return size + sizeVarint(uint64(size)) + len(p.tagcode)
-}
-
-func (o *Buffer) enc_time(p *Properties, base structPointer) error {
-	structp := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(structp) {
-		return ErrNil
-	}
-	tim := structPointer_Interface(structp, timeType).(*time.Time)
-	t, err := timestampProto(*tim)
-	if err != nil {
-		return err
-	}
-	data, err := Marshal(t)
-	if err != nil {
-		return err
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeRawBytes(data)
-	return nil
-}
-
-func size_ref_time(p *Properties, base structPointer) (n int) {
-	tim := structPointer_InterfaceAt(base, p.field, timeType).(*time.Time)
-	t, err := timestampProto(*tim)
-	if err != nil {
-		return 0
-	}
-	size := Size(t)
-	return size + sizeVarint(uint64(size)) + len(p.tagcode)
-}
-
-func (o *Buffer) enc_ref_time(p *Properties, base structPointer) error {
-	tim := structPointer_InterfaceAt(base, p.field, timeType).(*time.Time)
-	t, err := timestampProto(*tim)
-	if err != nil {
-		return err
-	}
-	data, err := Marshal(t)
-	if err != nil {
-		return err
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeRawBytes(data)
-	return nil
-}
-
-func size_slice_time(p *Properties, base structPointer) (n int) {
-	ptims := structPointer_InterfaceAt(base, p.field, reflect.SliceOf(reflect.PtrTo(timeType))).(*[]*time.Time)
-	tims := *ptims
-	for i := 0; i < len(tims); i++ {
-		if tims[i] == nil {
-			return 0
-		}
-		tproto, err := timestampProto(*tims[i])
-		if err != nil {
-			return 0
-		}
-		size := Size(tproto)
-		n += len(p.tagcode) + size + sizeVarint(uint64(size))
-	}
-	return n
-}
-
-func (o *Buffer) enc_slice_time(p *Properties, base structPointer) error {
-	ptims := structPointer_InterfaceAt(base, p.field, reflect.SliceOf(reflect.PtrTo(timeType))).(*[]*time.Time)
-	tims := *ptims
-	for i := 0; i < len(tims); i++ {
-		if tims[i] == nil {
-			return errRepeatedHasNil
-		}
-		tproto, err := timestampProto(*tims[i])
-		if err != nil {
-			return err
-		}
-		data, err := Marshal(tproto)
-		if err != nil {
-			return err
-		}
-		o.buf = append(o.buf, p.tagcode...)
-		o.EncodeRawBytes(data)
-	}
-	return nil
-}
-
-func size_slice_ref_time(p *Properties, base structPointer) (n int) {
-	ptims := structPointer_InterfaceAt(base, p.field, reflect.SliceOf(timeType)).(*[]time.Time)
-	tims := *ptims
-	for i := 0; i < len(tims); i++ {
-		tproto, err := timestampProto(tims[i])
-		if err != nil {
-			return 0
-		}
-		size := Size(tproto)
-		n += len(p.tagcode) + size + sizeVarint(uint64(size))
-	}
-	return n
-}
-
-func (o *Buffer) enc_slice_ref_time(p *Properties, base structPointer) error {
-	ptims := structPointer_InterfaceAt(base, p.field, reflect.SliceOf(timeType)).(*[]time.Time)
-	tims := *ptims
-	for i := 0; i < len(tims); i++ {
-		tproto, err := timestampProto(tims[i])
-		if err != nil {
-			return err
-		}
-		data, err := Marshal(tproto)
-		if err != nil {
-			return err
-		}
-		o.buf = append(o.buf, p.tagcode...)
-		o.EncodeRawBytes(data)
-	}
-	return nil
-}

cmd/vendor/github.com/golang/protobuf/jsonpb/jsonpb.go

@@ -44,7 +44,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"math"
 	"reflect"
 	"sort"
 	"strconv"
@@ -52,8 +51,6 @@ import (
 	"time"
 
 	"github.com/golang/protobuf/proto"
-
-	stpb "github.com/golang/protobuf/ptypes/struct"
 )
 
 // Marshaler is a configurable object for converting between
@@ -75,22 +72,6 @@ type Marshaler struct {
 	OrigName bool
 }
 
-// JSONPBMarshaler is implemented by protobuf messages that customize the
-// way they are marshaled to JSON. Messages that implement this should
-// also implement JSONPBUnmarshaler so that the custom format can be
-// parsed.
-type JSONPBMarshaler interface {
-	MarshalJSONPB(*Marshaler) ([]byte, error)
-}
-
-// JSONPBUnmarshaler is implemented by protobuf messages that customize
-// the way they are unmarshaled from JSON. Messages that implement this
-// should also implement JSONPBMarshaler so that the custom format can be
-// produced.
-type JSONPBUnmarshaler interface {
-	UnmarshalJSONPB(*Unmarshaler, []byte) error
-}
-
 // Marshal marshals a protocol buffer into JSON.
 func (m *Marshaler) Marshal(out io.Writer, pb proto.Message) error {
 	writer := &errWriter{writer: out}
@@ -108,12 +89,6 @@ func (m *Marshaler) MarshalToString(pb proto.Message) (string, error) {
 
 type int32Slice []int32
 
-var nonFinite = map[string]float64{
-	`"NaN"`:       math.NaN(),
-	`"Infinity"`:  math.Inf(1),
-	`"-Infinity"`: math.Inf(-1),
-}
-
 // For sorting extensions ids to ensure stable output.
 func (s int32Slice) Len() int           { return len(s) }
 func (s int32Slice) Less(i, j int) bool { return s[i] < s[j] }
@@ -125,31 +100,6 @@ type wkt interface {
 
 // marshalObject writes a struct to the Writer.
 func (m *Marshaler) marshalObject(out *errWriter, v proto.Message, indent, typeURL string) error {
-	if jsm, ok := v.(JSONPBMarshaler); ok {
-		b, err := jsm.MarshalJSONPB(m)
-		if err != nil {
-			return err
-		}
-		if typeURL != "" {
-			// we are marshaling this object to an Any type
-			var js map[string]*json.RawMessage
-			if err = json.Unmarshal(b, &js); err != nil {
-				return fmt.Errorf("type %T produced invalid JSON: %v", v, err)
-			}
-			turl, err := json.Marshal(typeURL)
-			if err != nil {
-				return fmt.Errorf("failed to marshal type URL %q to JSON: %v", typeURL, err)
-			}
-			js["@type"] = (*json.RawMessage)(&turl)
-			if b, err = json.Marshal(js); err != nil {
-				return err
-			}
-		}
-
-		out.write(string(b))
-		return out.err
-	}
-
 	s := reflect.ValueOf(v).Elem()
 
 	// Handle well-known types.
@@ -176,8 +126,8 @@ func (m *Marshaler) marshalObject(out *errWriter, v proto.Message, indent, typeU
 			out.write(x)
 			out.write(`s"`)
 			return out.err
-		case "Struct", "ListValue":
-			// Let marshalValue handle the `Struct.fields` map or the `ListValue.values` slice.
+		case "Struct":
+			// Let marshalValue handle the `fields` map.
 			// TODO: pass the correct Properties if needed.
 			return m.marshalValue(out, &proto.Properties{}, s.Field(0), indent)
 		case "Timestamp":
@@ -230,7 +180,7 @@ func (m *Marshaler) marshalObject(out *errWriter, v proto.Message, indent, typeU
 
 		// IsNil will panic on most value kinds.
 		switch value.Kind() {
-		case reflect.Chan, reflect.Func, reflect.Interface:
+		case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
 			if value.IsNil() {
 				continue
 			}
@@ -258,10 +208,6 @@ func (m *Marshaler) marshalObject(out *errWriter, v proto.Message, indent, typeU
 				if value.Len() == 0 {
 					continue
 				}
-			case reflect.Map, reflect.Ptr, reflect.Slice:
-				if value.IsNil() {
-					continue
-				}
 			}
 		}
 
@@ -425,15 +371,10 @@ func (m *Marshaler) marshalField(out *errWriter, prop *proto.Properties, v refle
 
 // marshalValue writes the value to the Writer.
 func (m *Marshaler) marshalValue(out *errWriter, prop *proto.Properties, v reflect.Value, indent string) error {
+
 	var err error
 	v = reflect.Indirect(v)
 
-	// Handle nil pointer
-	if v.Kind() == reflect.Invalid {
-		out.write("null")
-		return out.err
-	}
-
 	// Handle repeated elements.
 	if v.Kind() == reflect.Slice && v.Type().Elem().Kind() != reflect.Uint8 {
 		out.write("[")
@@ -463,6 +404,9 @@ func (m *Marshaler) marshalValue(out *errWriter, prop *proto.Properties, v refle
 
 	// Handle well-known types.
 	// Most are handled up in marshalObject (because 99% are messages).
+	type wkt interface {
+		XXX_WellKnownType() string
+	}
 	if wkt, ok := v.Interface().(wkt); ok {
 		switch wkt.XXX_WellKnownType() {
 		case "NullValue":
@@ -550,24 +494,6 @@ func (m *Marshaler) marshalValue(out *errWriter, prop *proto.Properties, v refle
 		return out.err
 	}
 
-	// Handle non-finite floats, e.g. NaN, Infinity and -Infinity.
-	if v.Kind() == reflect.Float32 || v.Kind() == reflect.Float64 {
-		f := v.Float()
-		var sval string
-		switch {
-		case math.IsInf(f, 1):
-			sval = `"Infinity"`
-		case math.IsInf(f, -1):
-			sval = `"-Infinity"`
-		case math.IsNaN(f):
-			sval = `"NaN"`
-		}
-		if sval != "" {
-			out.write(sval)
-			return out.err
-		}
-	}
-
 	// Default handling defers to the encoding/json library.
 	b, err := json.Marshal(v.Interface())
 	if err != nil {
@@ -643,13 +569,12 @@ func (u *Unmarshaler) unmarshalValue(target reflect.Value, inputValue json.RawMe
 		return u.unmarshalValue(target.Elem(), inputValue, prop)
 	}
 
-	if jsu, ok := target.Addr().Interface().(JSONPBUnmarshaler); ok {
-		return jsu.UnmarshalJSONPB(u, []byte(inputValue))
-	}
-
 	// Handle well-known types.
-	if w, ok := target.Addr().Interface().(wkt); ok {
-		switch w.XXX_WellKnownType() {
+	type wkt interface {
+		XXX_WellKnownType() string
+	}
+	if wkt, ok := target.Addr().Interface().(wkt); ok {
+		switch wkt.XXX_WellKnownType() {
 		case "DoubleValue", "FloatValue", "Int64Value", "UInt64Value",
 			"Int32Value", "UInt32Value", "BoolValue", "StringValue", "BytesValue":
 			// "Wrappers use the same representation in JSON
@@ -658,72 +583,9 @@ func (u *Unmarshaler) unmarshalValue(target reflect.Value, inputValue json.RawMe
 			// so we don't have to do any extra work.
 			return u.unmarshalValue(target.Field(0), inputValue, prop)
 		case "Any":
-			// Use json.RawMessage pointer type instead of value to support pre-1.8 version.
-			// 1.8 changed RawMessage.MarshalJSON from pointer type to value type, see
-			// https://github.com/golang/go/issues/14493
-			var jsonFields map[string]*json.RawMessage
-			if err := json.Unmarshal(inputValue, &jsonFields); err != nil {
-				return err
-			}
-
-			val, ok := jsonFields["@type"]
-			if !ok || val == nil {
-				return errors.New("Any JSON doesn't have '@type'")
-			}
-
-			var turl string
-			if err := json.Unmarshal([]byte(*val), &turl); err != nil {
-				return fmt.Errorf("can't unmarshal Any's '@type': %q", *val)
-			}
-			target.Field(0).SetString(turl)
-
-			mname := turl
-			if slash := strings.LastIndex(mname, "/"); slash >= 0 {
-				mname = mname[slash+1:]
-			}
-			mt := proto.MessageType(mname)
-			if mt == nil {
-				return fmt.Errorf("unknown message type %q", mname)
-			}
-
-			m := reflect.New(mt.Elem()).Interface().(proto.Message)
-			if _, ok := m.(wkt); ok {
-				val, ok := jsonFields["value"]
-				if !ok {
-					return errors.New("Any JSON doesn't have 'value'")
-				}
-
-				if err := u.unmarshalValue(reflect.ValueOf(m).Elem(), *val, nil); err != nil {
-					return fmt.Errorf("can't unmarshal Any nested proto %T: %v", m, err)
-				}
-			} else {
-				delete(jsonFields, "@type")
-				nestedProto, err := json.Marshal(jsonFields)
-				if err != nil {
-					return fmt.Errorf("can't generate JSON for Any's nested proto to be unmarshaled: %v", err)
-				}
-
-				if err = u.unmarshalValue(reflect.ValueOf(m).Elem(), nestedProto, nil); err != nil {
-					return fmt.Errorf("can't unmarshal Any nested proto %T: %v", m, err)
-				}
-			}
-
-			b, err := proto.Marshal(m)
-			if err != nil {
-				return fmt.Errorf("can't marshal proto %T into Any.Value: %v", m, err)
-			}
-			target.Field(1).SetBytes(b)
-
-			return nil
+			return fmt.Errorf("unmarshaling Any not supported yet")
 		case "Duration":
-			ivStr := string(inputValue)
-			if ivStr == "null" {
-				target.Field(0).SetInt(0)
-				target.Field(1).SetInt(0)
-				return nil
-			}
-
-			unq, err := strconv.Unquote(ivStr)
+			unq, err := strconv.Unquote(string(inputValue))
 			if err != nil {
 				return err
 			}
@@ -738,14 +600,7 @@ func (u *Unmarshaler) unmarshalValue(target reflect.Value, inputValue json.RawMe
 			target.Field(1).SetInt(ns)
 			return nil
 		case "Timestamp":
-			ivStr := string(inputValue)
-			if ivStr == "null" {
-				target.Field(0).SetInt(0)
-				target.Field(1).SetInt(0)
-				return nil
-			}
-
-			unq, err := strconv.Unquote(ivStr)
+			unq, err := strconv.Unquote(string(inputValue))
 			if err != nil {
 				return err
 			}
@@ -756,62 +611,6 @@ func (u *Unmarshaler) unmarshalValue(target reflect.Value, inputValue json.RawMe
 			target.Field(0).SetInt(int64(t.Unix()))
 			target.Field(1).SetInt(int64(t.Nanosecond()))
 			return nil
-		case "Struct":
-			if string(inputValue) == "null" {
-				// Interpret a null struct as empty.
-				return nil
-			}
-			var m map[string]json.RawMessage
-			if err := json.Unmarshal(inputValue, &m); err != nil {
-				return fmt.Errorf("bad StructValue: %v", err)
-			}
-			target.Field(0).Set(reflect.ValueOf(map[string]*stpb.Value{}))
-			for k, jv := range m {
-				pv := &stpb.Value{}
-				if err := u.unmarshalValue(reflect.ValueOf(pv).Elem(), jv, prop); err != nil {
-					return fmt.Errorf("bad value in StructValue for key %q: %v", k, err)
-				}
-				target.Field(0).SetMapIndex(reflect.ValueOf(k), reflect.ValueOf(pv))
-			}
-			return nil
-		case "ListValue":
-			if string(inputValue) == "null" {
-				// Interpret a null ListValue as empty.
-				return nil
-			}
-			var s []json.RawMessage
-			if err := json.Unmarshal(inputValue, &s); err != nil {
-				return fmt.Errorf("bad ListValue: %v", err)
-			}
-			target.Field(0).Set(reflect.ValueOf(make([]*stpb.Value, len(s), len(s))))
-			for i, sv := range s {
-				if err := u.unmarshalValue(target.Field(0).Index(i), sv, prop); err != nil {
-					return err
-				}
-			}
-			return nil
-		case "Value":
-			ivStr := string(inputValue)
-			if ivStr == "null" {
-				target.Field(0).Set(reflect.ValueOf(&stpb.Value_NullValue{}))
-			} else if v, err := strconv.ParseFloat(ivStr, 0); err == nil {
-				target.Field(0).Set(reflect.ValueOf(&stpb.Value_NumberValue{v}))
-			} else if v, err := strconv.Unquote(ivStr); err == nil {
-				target.Field(0).Set(reflect.ValueOf(&stpb.Value_StringValue{v}))
-			} else if v, err := strconv.ParseBool(ivStr); err == nil {
-				target.Field(0).Set(reflect.ValueOf(&stpb.Value_BoolValue{v}))
-			} else if err := json.Unmarshal(inputValue, &[]json.RawMessage{}); err == nil {
-				lv := &stpb.ListValue{}
-				target.Field(0).Set(reflect.ValueOf(&stpb.Value_ListValue{lv}))
-				return u.unmarshalValue(reflect.ValueOf(lv).Elem(), inputValue, prop)
-			} else if err := json.Unmarshal(inputValue, &map[string]json.RawMessage{}); err == nil {
-				sv := &stpb.Struct{}
-				target.Field(0).Set(reflect.ValueOf(&stpb.Value_StructValue{sv}))
-				return u.unmarshalValue(reflect.ValueOf(sv).Elem(), inputValue, prop)
-			} else {
-				return fmt.Errorf("unrecognized type for Value %q", ivStr)
-			}
-			return nil
 		}
 	}
 
@@ -895,26 +694,6 @@ func (u *Unmarshaler) unmarshalValue(target reflect.Value, inputValue json.RawMe
 				}
 			}
 		}
-		// Handle proto2 extensions.
-		if len(jsonFields) > 0 {
-			if ep, ok := target.Addr().Interface().(proto.Message); ok {
-				for _, ext := range proto.RegisteredExtensions(ep) {
-					name := fmt.Sprintf("[%s]", ext.Name)
-					raw, ok := jsonFields[name]
-					if !ok {
-						continue
-					}
-					delete(jsonFields, name)
-					nv := reflect.New(reflect.TypeOf(ext.ExtensionType).Elem())
-					if err := u.unmarshalValue(nv.Elem(), raw, nil); err != nil {
-						return err
-					}
-					if err := proto.SetExtension(ep, ext, nv.Interface()); err != nil {
-						return err
-					}
-				}
-			}
-		}
 		if !u.AllowUnknownFields && len(jsonFields) > 0 {
 			// Pick any field to be the scapegoat.
 			var f string
@@ -987,15 +766,6 @@ func (u *Unmarshaler) unmarshalValue(target reflect.Value, inputValue json.RawMe
 		inputValue = inputValue[1 : len(inputValue)-1]
 	}
 
-	// Non-finite numbers can be encoded as strings.
-	isFloat := targetType.Kind() == reflect.Float32 || targetType.Kind() == reflect.Float64
-	if isFloat {
-		if num, ok := nonFinite[string(inputValue)]; ok {
-			target.SetFloat(num)
-			return nil
-		}
-	}
-
 	// Use the encoding/json for parsing other value types.
 	return json.Unmarshal(inputValue, target.Addr().Interface())
 }

cmd/vendor/github.com/golang/protobuf/proto/encode.go

@@ -1075,17 +1075,10 @@ func (o *Buffer) enc_map(p *Properties, base structPointer) error {
 
 func (o *Buffer) enc_exts(p *Properties, base structPointer) error {
 	exts := structPointer_Extensions(base, p.field)
-
-	v, mu := exts.extensionsRead()
-	if v == nil {
-		return nil
-	}
-
-	mu.Lock()
-	defer mu.Unlock()
-	if err := encodeExtensionsMap(v); err != nil {
+	if err := encodeExtensions(exts); err != nil {
 		return err
 	}
+	v, _ := exts.extensionsRead()
 
 	return o.enc_map_body(v)
 }

cmd/vendor/github.com/golang/protobuf/proto/extensions.go

@@ -154,7 +154,6 @@ type ExtensionDesc struct {
 	Field         int32       // field number
 	Name          string      // fully-qualified name of extension, for text formatting
 	Tag           string      // protobuf tag style
-	Filename      string      // name of the file in which the extension is defined
 }
 
 func (ed *ExtensionDesc) repeated() bool {

cmd/vendor/github.com/golang/protobuf/proto/lib.go

@@ -73,6 +73,7 @@ for a protocol buffer variable v:
 When the .proto file specifies `syntax="proto3"`, there are some differences:
 
   - Non-repeated fields of non-message type are values instead of pointers.
+  - Getters are only generated for message and oneof fields.
   - Enum types do not get an Enum method.
 
 The simplest way to describe this is to see an example.

cmd/vendor/github.com/golang/protobuf/ptypes/any/any.pb.go

@@ -1,168 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: github.com/golang/protobuf/ptypes/any/any.proto
-
-/*
-Package any is a generated protocol buffer package.
-
-It is generated from these files:
-	github.com/golang/protobuf/ptypes/any/any.proto
-
-It has these top-level messages:
-	Any
-*/
-package any
-
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
-
-// `Any` contains an arbitrary serialized protocol buffer message along with a
-// URL that describes the type of the serialized message.
-//
-// Protobuf library provides support to pack/unpack Any values in the form
-// of utility functions or additional generated methods of the Any type.
-//
-// Example 1: Pack and unpack a message in C++.
-//
-//     Foo foo = ...;
-//     Any any;
-//     any.PackFrom(foo);
-//     ...
-//     if (any.UnpackTo(&foo)) {
-//       ...
-//     }
-//
-// Example 2: Pack and unpack a message in Java.
-//
-//     Foo foo = ...;
-//     Any any = Any.pack(foo);
-//     ...
-//     if (any.is(Foo.class)) {
-//       foo = any.unpack(Foo.class);
-//     }
-//
-//  Example 3: Pack and unpack a message in Python.
-//
-//     foo = Foo(...)
-//     any = Any()
-//     any.Pack(foo)
-//     ...
-//     if any.Is(Foo.DESCRIPTOR):
-//       any.Unpack(foo)
-//       ...
-//
-// The pack methods provided by protobuf library will by default use
-// 'type.googleapis.com/full.type.name' as the type URL and the unpack
-// methods only use the fully qualified type name after the last '/'
-// in the type URL, for example "foo.bar.com/x/y.z" will yield type
-// name "y.z".
-//
-//
-// JSON
-// ====
-// The JSON representation of an `Any` value uses the regular
-// representation of the deserialized, embedded message, with an
-// additional field `@type` which contains the type URL. Example:
-//
-//     package google.profile;
-//     message Person {
-//       string first_name = 1;
-//       string last_name = 2;
-//     }
-//
-//     {
-//       "@type": "type.googleapis.com/google.profile.Person",
-//       "firstName": <string>,
-//       "lastName": <string>
-//     }
-//
-// If the embedded message type is well-known and has a custom JSON
-// representation, that representation will be embedded adding a field
-// `value` which holds the custom JSON in addition to the `@type`
-// field. Example (for message [google.protobuf.Duration][]):
-//
-//     {
-//       "@type": "type.googleapis.com/google.protobuf.Duration",
-//       "value": "1.212s"
-//     }
-//
-type Any struct {
-	// A URL/resource name whose content describes the type of the
-	// serialized protocol buffer message.
-	//
-	// For URLs which use the scheme `http`, `https`, or no scheme, the
-	// following restrictions and interpretations apply:
-	//
-	// * If no scheme is provided, `https` is assumed.
-	// * The last segment of the URL's path must represent the fully
-	//   qualified name of the type (as in `path/google.protobuf.Duration`).
-	//   The name should be in a canonical form (e.g., leading "." is
-	//   not accepted).
-	// * An HTTP GET on the URL must yield a [google.protobuf.Type][]
-	//   value in binary format, or produce an error.
-	// * Applications are allowed to cache lookup results based on the
-	//   URL, or have them precompiled into a binary to avoid any
-	//   lookup. Therefore, binary compatibility needs to be preserved
-	//   on changes to types. (Use versioned type names to manage
-	//   breaking changes.)
-	//
-	// Schemes other than `http`, `https` (or the empty scheme) might be
-	// used with implementation specific semantics.
-	//
-	TypeUrl string `protobuf:"bytes,1,opt,name=type_url,json=typeUrl" json:"type_url,omitempty"`
-	// Must be a valid serialized protocol buffer of the above specified type.
-	Value []byte `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
-}
-
-func (m *Any) Reset()                    { *m = Any{} }
-func (m *Any) String() string            { return proto.CompactTextString(m) }
-func (*Any) ProtoMessage()               {}
-func (*Any) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-func (*Any) XXX_WellKnownType() string   { return "Any" }
-
-func (m *Any) GetTypeUrl() string {
-	if m != nil {
-		return m.TypeUrl
-	}
-	return ""
-}
-
-func (m *Any) GetValue() []byte {
-	if m != nil {
-		return m.Value
-	}
-	return nil
-}
-
-func init() {
-	proto.RegisterType((*Any)(nil), "google.protobuf.Any")
-}
-
-func init() { proto.RegisterFile("github.com/golang/protobuf/ptypes/any/any.proto", fileDescriptor0) }
-
-var fileDescriptor0 = []byte{
-	// 184 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xd2, 0x4f, 0xcf, 0x2c, 0xc9,
-	0x28, 0x4d, 0xd2, 0x4b, 0xce, 0xcf, 0xd5, 0x4f, 0xcf, 0xcf, 0x49, 0xcc, 0x4b, 0xd7, 0x2f, 0x28,
-	0xca, 0x2f, 0xc9, 0x4f, 0x2a, 0x4d, 0xd3, 0x2f, 0x28, 0xa9, 0x2c, 0x48, 0x2d, 0xd6, 0x4f, 0xcc,
-	0xab, 0x04, 0x61, 0x3d, 0xb0, 0xb8, 0x10, 0x7f, 0x7a, 0x7e, 0x7e, 0x7a, 0x4e, 0xaa, 0x1e, 0x4c,
-	0x95, 0x92, 0x19, 0x17, 0xb3, 0x63, 0x5e, 0xa5, 0x90, 0x24, 0x17, 0x07, 0x48, 0x79, 0x7c, 0x69,
-	0x51, 0x8e, 0x04, 0xa3, 0x02, 0xa3, 0x06, 0x67, 0x10, 0x3b, 0x88, 0x1f, 0x5a, 0x94, 0x23, 0x24,
-	0xc2, 0xc5, 0x5a, 0x96, 0x98, 0x53, 0x9a, 0x2a, 0xc1, 0xa4, 0xc0, 0xa8, 0xc1, 0x13, 0x04, 0xe1,
-	0x38, 0xe5, 0x73, 0x09, 0x27, 0xe7, 0xe7, 0xea, 0xa1, 0x19, 0xe7, 0xc4, 0xe1, 0x98, 0x57, 0x19,
-	0x00, 0xe2, 0x04, 0x30, 0x46, 0xa9, 0x12, 0xe5, 0xb8, 0x45, 0x4c, 0xcc, 0xee, 0x01, 0x4e, 0xab,
-	0x98, 0xe4, 0xdc, 0x21, 0x46, 0x05, 0x40, 0x95, 0xe8, 0x85, 0xa7, 0xe6, 0xe4, 0x78, 0xe7, 0xe5,
-	0x97, 0xe7, 0x85, 0x80, 0x94, 0x26, 0xb1, 0x81, 0xf5, 0x1a, 0x03, 0x02, 0x00, 0x00, 0xff, 0xff,
-	0x45, 0x1f, 0x1a, 0xf2, 0xf3, 0x00, 0x00, 0x00,
-}

cmd/vendor/github.com/golang/protobuf/ptypes/struct/struct.pb.go

@@ -1,382 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: github.com/golang/protobuf/ptypes/struct/struct.proto
-
-/*
-Package structpb is a generated protocol buffer package.
-
-It is generated from these files:
-	github.com/golang/protobuf/ptypes/struct/struct.proto
-
-It has these top-level messages:
-	Struct
-	Value
-	ListValue
-*/
-package structpb
-
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
-
-// `NullValue` is a singleton enumeration to represent the null value for the
-// `Value` type union.
-//
-//  The JSON representation for `NullValue` is JSON `null`.
-type NullValue int32
-
-const (
-	// Null value.
-	NullValue_NULL_VALUE NullValue = 0
-)
-
-var NullValue_name = map[int32]string{
-	0: "NULL_VALUE",
-}
-var NullValue_value = map[string]int32{
-	"NULL_VALUE": 0,
-}
-
-func (x NullValue) String() string {
-	return proto.EnumName(NullValue_name, int32(x))
-}
-func (NullValue) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-func (NullValue) XXX_WellKnownType() string       { return "NullValue" }
-
-// `Struct` represents a structured data value, consisting of fields
-// which map to dynamically typed values. In some languages, `Struct`
-// might be supported by a native representation. For example, in
-// scripting languages like JS a struct is represented as an
-// object. The details of that representation are described together
-// with the proto support for the language.
-//
-// The JSON representation for `Struct` is JSON object.
-type Struct struct {
-	// Unordered map of dynamically typed values.
-	Fields map[string]*Value `protobuf:"bytes,1,rep,name=fields" json:"fields,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
-}
-
-func (m *Struct) Reset()                    { *m = Struct{} }
-func (m *Struct) String() string            { return proto.CompactTextString(m) }
-func (*Struct) ProtoMessage()               {}
-func (*Struct) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-func (*Struct) XXX_WellKnownType() string   { return "Struct" }
-
-func (m *Struct) GetFields() map[string]*Value {
-	if m != nil {
-		return m.Fields
-	}
-	return nil
-}
-
-// `Value` represents a dynamically typed value which can be either
-// null, a number, a string, a boolean, a recursive struct value, or a
-// list of values. A producer of value is expected to set one of that
-// variants, absence of any variant indicates an error.
-//
-// The JSON representation for `Value` is JSON value.
-type Value struct {
-	// The kind of value.
-	//
-	// Types that are valid to be assigned to Kind:
-	//	*Value_NullValue
-	//	*Value_NumberValue
-	//	*Value_StringValue
-	//	*Value_BoolValue
-	//	*Value_StructValue
-	//	*Value_ListValue
-	Kind isValue_Kind `protobuf_oneof:"kind"`
-}
-
-func (m *Value) Reset()                    { *m = Value{} }
-func (m *Value) String() string            { return proto.CompactTextString(m) }
-func (*Value) ProtoMessage()               {}
-func (*Value) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
-func (*Value) XXX_WellKnownType() string   { return "Value" }
-
-type isValue_Kind interface {
-	isValue_Kind()
-}
-
-type Value_NullValue struct {
-	NullValue NullValue `protobuf:"varint,1,opt,name=null_value,json=nullValue,enum=google.protobuf.NullValue,oneof"`
-}
-type Value_NumberValue struct {
-	NumberValue float64 `protobuf:"fixed64,2,opt,name=number_value,json=numberValue,oneof"`
-}
-type Value_StringValue struct {
-	StringValue string `protobuf:"bytes,3,opt,name=string_value,json=stringValue,oneof"`
-}
-type Value_BoolValue struct {
-	BoolValue bool `protobuf:"varint,4,opt,name=bool_value,json=boolValue,oneof"`
-}
-type Value_StructValue struct {
-	StructValue *Struct `protobuf:"bytes,5,opt,name=struct_value,json=structValue,oneof"`
-}
-type Value_ListValue struct {
-	ListValue *ListValue `protobuf:"bytes,6,opt,name=list_value,json=listValue,oneof"`
-}
-
-func (*Value_NullValue) isValue_Kind()   {}
-func (*Value_NumberValue) isValue_Kind() {}
-func (*Value_StringValue) isValue_Kind() {}
-func (*Value_BoolValue) isValue_Kind()   {}
-func (*Value_StructValue) isValue_Kind() {}
-func (*Value_ListValue) isValue_Kind()   {}
-
-func (m *Value) GetKind() isValue_Kind {
-	if m != nil {
-		return m.Kind
-	}
-	return nil
-}
-
-func (m *Value) GetNullValue() NullValue {
-	if x, ok := m.GetKind().(*Value_NullValue); ok {
-		return x.NullValue
-	}
-	return NullValue_NULL_VALUE
-}
-
-func (m *Value) GetNumberValue() float64 {
-	if x, ok := m.GetKind().(*Value_NumberValue); ok {
-		return x.NumberValue
-	}
-	return 0
-}
-
-func (m *Value) GetStringValue() string {
-	if x, ok := m.GetKind().(*Value_StringValue); ok {
-		return x.StringValue
-	}
-	return ""
-}
-
-func (m *Value) GetBoolValue() bool {
-	if x, ok := m.GetKind().(*Value_BoolValue); ok {
-		return x.BoolValue
-	}
-	return false
-}
-
-func (m *Value) GetStructValue() *Struct {
-	if x, ok := m.GetKind().(*Value_StructValue); ok {
-		return x.StructValue
-	}
-	return nil
-}
-
-func (m *Value) GetListValue() *ListValue {
-	if x, ok := m.GetKind().(*Value_ListValue); ok {
-		return x.ListValue
-	}
-	return nil
-}
-
-// XXX_OneofFuncs is for the internal use of the proto package.
-func (*Value) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
-	return _Value_OneofMarshaler, _Value_OneofUnmarshaler, _Value_OneofSizer, []interface{}{
-		(*Value_NullValue)(nil),
-		(*Value_NumberValue)(nil),
-		(*Value_StringValue)(nil),
-		(*Value_BoolValue)(nil),
-		(*Value_StructValue)(nil),
-		(*Value_ListValue)(nil),
-	}
-}
-
-func _Value_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
-	m := msg.(*Value)
-	// kind
-	switch x := m.Kind.(type) {
-	case *Value_NullValue:
-		b.EncodeVarint(1<<3 | proto.WireVarint)
-		b.EncodeVarint(uint64(x.NullValue))
-	case *Value_NumberValue:
-		b.EncodeVarint(2<<3 | proto.WireFixed64)
-		b.EncodeFixed64(math.Float64bits(x.NumberValue))
-	case *Value_StringValue:
-		b.EncodeVarint(3<<3 | proto.WireBytes)
-		b.EncodeStringBytes(x.StringValue)
-	case *Value_BoolValue:
-		t := uint64(0)
-		if x.BoolValue {
-			t = 1
-		}
-		b.EncodeVarint(4<<3 | proto.WireVarint)
-		b.EncodeVarint(t)
-	case *Value_StructValue:
-		b.EncodeVarint(5<<3 | proto.WireBytes)
-		if err := b.EncodeMessage(x.StructValue); err != nil {
-			return err
-		}
-	case *Value_ListValue:
-		b.EncodeVarint(6<<3 | proto.WireBytes)
-		if err := b.EncodeMessage(x.ListValue); err != nil {
-			return err
-		}
-	case nil:
-	default:
-		return fmt.Errorf("Value.Kind has unexpected type %T", x)
-	}
-	return nil
-}
-
-func _Value_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
-	m := msg.(*Value)
-	switch tag {
-	case 1: // kind.null_value
-		if wire != proto.WireVarint {
-			return true, proto.ErrInternalBadWireType
-		}
-		x, err := b.DecodeVarint()
-		m.Kind = &Value_NullValue{NullValue(x)}
-		return true, err
-	case 2: // kind.number_value
-		if wire != proto.WireFixed64 {
-			return true, proto.ErrInternalBadWireType
-		}
-		x, err := b.DecodeFixed64()
-		m.Kind = &Value_NumberValue{math.Float64frombits(x)}
-		return true, err
-	case 3: // kind.string_value
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		x, err := b.DecodeStringBytes()
-		m.Kind = &Value_StringValue{x}
-		return true, err
-	case 4: // kind.bool_value
-		if wire != proto.WireVarint {
-			return true, proto.ErrInternalBadWireType
-		}
-		x, err := b.DecodeVarint()
-		m.Kind = &Value_BoolValue{x != 0}
-		return true, err
-	case 5: // kind.struct_value
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		msg := new(Struct)
-		err := b.DecodeMessage(msg)
-		m.Kind = &Value_StructValue{msg}
-		return true, err
-	case 6: // kind.list_value
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		msg := new(ListValue)
-		err := b.DecodeMessage(msg)
-		m.Kind = &Value_ListValue{msg}
-		return true, err
-	default:
-		return false, nil
-	}
-}
-
-func _Value_OneofSizer(msg proto.Message) (n int) {
-	m := msg.(*Value)
-	// kind
-	switch x := m.Kind.(type) {
-	case *Value_NullValue:
-		n += proto.SizeVarint(1<<3 | proto.WireVarint)
-		n += proto.SizeVarint(uint64(x.NullValue))
-	case *Value_NumberValue:
-		n += proto.SizeVarint(2<<3 | proto.WireFixed64)
-		n += 8
-	case *Value_StringValue:
-		n += proto.SizeVarint(3<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(len(x.StringValue)))
-		n += len(x.StringValue)
-	case *Value_BoolValue:
-		n += proto.SizeVarint(4<<3 | proto.WireVarint)
-		n += 1
-	case *Value_StructValue:
-		s := proto.Size(x.StructValue)
-		n += proto.SizeVarint(5<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(s))
-		n += s
-	case *Value_ListValue:
-		s := proto.Size(x.ListValue)
-		n += proto.SizeVarint(6<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(s))
-		n += s
-	case nil:
-	default:
-		panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
-	}
-	return n
-}
-
-// `ListValue` is a wrapper around a repeated field of values.
-//
-// The JSON representation for `ListValue` is JSON array.
-type ListValue struct {
-	// Repeated field of dynamically typed values.
-	Values []*Value `protobuf:"bytes,1,rep,name=values" json:"values,omitempty"`
-}
-
-func (m *ListValue) Reset()                    { *m = ListValue{} }
-func (m *ListValue) String() string            { return proto.CompactTextString(m) }
-func (*ListValue) ProtoMessage()               {}
-func (*ListValue) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
-func (*ListValue) XXX_WellKnownType() string   { return "ListValue" }
-
-func (m *ListValue) GetValues() []*Value {
-	if m != nil {
-		return m.Values
-	}
-	return nil
-}
-
-func init() {
-	proto.RegisterType((*Struct)(nil), "google.protobuf.Struct")
-	proto.RegisterType((*Value)(nil), "google.protobuf.Value")
-	proto.RegisterType((*ListValue)(nil), "google.protobuf.ListValue")
-	proto.RegisterEnum("google.protobuf.NullValue", NullValue_name, NullValue_value)
-}
-
-func init() {
-	proto.RegisterFile("github.com/golang/protobuf/ptypes/struct/struct.proto", fileDescriptor0)
-}
-
-var fileDescriptor0 = []byte{
-	// 417 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x92, 0x41, 0x8b, 0xd3, 0x40,
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-	0x2f, 0x72, 0x3e, 0x4c, 0x49, 0xaa, 0xb6, 0xaf, 0xb5, 0x54, 0xed, 0xfe, 0x94, 0x71, 0xd5, 0xf2,
-	0x61, 0x4a, 0xd2, 0x07, 0x91, 0x05, 0x47, 0xeb, 0x8a, 0x2e, 0xa7, 0x21, 0xd8, 0x03, 0x81, 0x7d,
-	0xb0, 0x94, 0xac, 0xff, 0x47, 0x0f, 0x2d, 0xbd, 0xa3, 0x1e, 0x3f, 0x00, 0x7b, 0x58, 0x22, 0x3e,
-	0x06, 0xb8, 0xba, 0x8e, 0xe3, 0xf9, 0xcd, 0xeb, 0xf8, 0xfa, 0xfc, 0x64, 0x14, 0x7d, 0x43, 0x70,
-	0x37, 0x67, 0x9b, 0x5d, 0x45, 0xe4, 0xe8, 0x69, 0x12, 0x19, 0x27, 0xe8, 0xd3, 0xd3, 0xff, 0xfd,
-	0x30, 0x43, 0x7d, 0xd4, 0xd9, 0x6f, 0x84, 0x7e, 0x18, 0xe6, 0x45, 0x12, 0xfd, 0x34, 0x1e, 0x5e,
-	0x68, 0x79, 0xd2, 0xf7, 0xf7, 0xb1, 0x20, 0xe4, 0x2d, 0x65, 0x5f, 0xe9, 0x07, 0x59, 0x99, 0x59,
-	0x4a, 0xf5, 0xec, 0x4f, 0x00, 0x00, 0x00, 0xff, 0xff, 0x9b, 0x6e, 0x5d, 0x3c, 0xfe, 0x02, 0x00,
-	0x00,
-}

cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/context.go

@@ -94,7 +94,7 @@ func AnnotateContext(ctx context.Context, req *http.Request) (context.Context, e
 	if len(pairs) == 0 {
 		return ctx, nil
 	}
-	return metadata.NewOutgoingContext(ctx, metadata.Pairs(pairs...)), nil
+	return metadata.NewContext(ctx, metadata.Pairs(pairs...)), nil
 }
 
 // ServerMetadata consists of metadata sent from gRPC server.

cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/query.go

@@ -48,11 +48,8 @@ func populateFieldValueFromPath(msg proto.Message, fieldPath []string, values []
 			return fmt.Errorf("non-aggregate type in the mid of path: %s", strings.Join(fieldPath, "."))
 		}
 		var f reflect.Value
-		var err error
-		f, props, err = fieldByProtoName(m, fieldName)
-		if err != nil {
-			return err
-		} else if !f.IsValid() {
+		f, props = fieldByProtoName(m, fieldName)
+		if !f.IsValid() {
 			grpclog.Printf("field not found in %T: %s", msg, strings.Join(fieldPath, "."))
 			return nil
 		}
@@ -95,26 +92,14 @@ func populateFieldValueFromPath(msg proto.Message, fieldPath []string, values []
 
 // fieldByProtoName looks up a field whose corresponding protobuf field name is "name".
 // "m" must be a struct value. It returns zero reflect.Value if no such field found.
-func fieldByProtoName(m reflect.Value, name string) (reflect.Value, *proto.Properties, error) {
+func fieldByProtoName(m reflect.Value, name string) (reflect.Value, *proto.Properties) {
 	props := proto.GetProperties(m.Type())
-
-	// look up field name in oneof map
-	if op, ok := props.OneofTypes[name]; ok {
-		v := reflect.New(op.Type.Elem())
-		field := m.Field(op.Field)
-		if !field.IsNil() {
-			return reflect.Value{}, nil, fmt.Errorf("field already set for %s oneof", props.Prop[op.Field].OrigName)
-		}
-		field.Set(v)
-		return v.Elem().Field(0), op.Prop, nil
-	}
-
 	for _, p := range props.Prop {
 		if p.OrigName == name {
-			return m.FieldByName(p.Name), p, nil
+			return m.FieldByName(p.Name), p
 		}
 	}
-	return reflect.Value{}, nil, nil
+	return reflect.Value{}, nil
 }
 
 func populateRepeatedField(f reflect.Value, values []string, props *proto.Properties) error {

cmd/vendor/github.com/russross/blackfriday/inline.go

@@ -488,7 +488,6 @@ func link(p *parser, out *bytes.Buffer, data []byte, offset int) int {
 			}
 
 			p.notes = append(p.notes, ref)
-			p.notesRecord[string(ref.link)] = struct{}{}
 
 			link = ref.link
 			title = ref.title
@@ -499,10 +498,9 @@ func link(p *parser, out *bytes.Buffer, data []byte, offset int) int {
 				return 0
 			}
 
-			if t == linkDeferredFootnote && !p.isFootnote(lr) {
+			if t == linkDeferredFootnote {
 				lr.noteId = len(p.notes) + 1
 				p.notes = append(p.notes, lr)
-				p.notesRecord[string(lr.link)] = struct{}{}
 			}
 
 			// keep link and title from reference

cmd/vendor/github.com/russross/blackfriday/markdown.go

@@ -219,7 +219,6 @@ type parser struct {
 	// presence. If a ref is also a footnote, it's stored both in refs and here
 	// in notes. Slice is nil if footnotes not enabled.
 	notes []*reference
-	notesRecord map[string]struct{}
 }
 
 func (p *parser) getRef(refid string) (ref *reference, found bool) {
@@ -242,11 +241,6 @@ func (p *parser) getRef(refid string) (ref *reference, found bool) {
 	return ref, found
 }
 
-func (p *parser) isFootnote(ref *reference) bool {
-	_, ok := p.notesRecord[string(ref.link)]
-	return ok
-}
-
 //
 //
 // Public interface
@@ -382,7 +376,6 @@ func MarkdownOptions(input []byte, renderer Renderer, opts Options) []byte {
 
 	if extensions&EXTENSION_FOOTNOTES != 0 {
 		p.notes = make([]*reference, 0)
-		p.notesRecord = make(map[string]struct{})
 	}
 
 	first := firstPass(p, input)

cmd/vendor/google.golang.org/genproto/LICENSE

@@ -1,202 +0,0 @@
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
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-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
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-      Work and such Derivative Works in Source or Object form.
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-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
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-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
-          attribution notices from the Source form of the Work,
-          excluding those notices that do not pertain to any part of
-          the Derivative Works; and
-
-      (d) If the Work includes a "NOTICE" text file as part of its
-          distribution, then any Derivative Works that You distribute must
-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright [yyyy] [name of copyright owner]
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.

cmd/vendor/google.golang.org/genproto/googleapis/rpc/status/status.pb.go

@@ -1,143 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: google/rpc/status.proto
-
-/*
-Package status is a generated protocol buffer package.
-
-It is generated from these files:
-	google/rpc/status.proto
-
-It has these top-level messages:
-	Status
-*/
-package status
-
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
-import google_protobuf "github.com/golang/protobuf/ptypes/any"
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
-
-// The `Status` type defines a logical error model that is suitable for different
-// programming environments, including REST APIs and RPC APIs. It is used by
-// [gRPC](https://github.com/grpc). The error model is designed to be:
-//
-// - Simple to use and understand for most users
-// - Flexible enough to meet unexpected needs
-//
-// # Overview
-//
-// The `Status` message contains three pieces of data: error code, error message,
-// and error details. The error code should be an enum value of
-// [google.rpc.Code][google.rpc.Code], but it may accept additional error codes if needed.  The
-// error message should be a developer-facing English message that helps
-// developers *understand* and *resolve* the error. If a localized user-facing
-// error message is needed, put the localized message in the error details or
-// localize it in the client. The optional error details may contain arbitrary
-// information about the error. There is a predefined set of error detail types
-// in the package `google.rpc` which can be used for common error conditions.
-//
-// # Language mapping
-//
-// The `Status` message is the logical representation of the error model, but it
-// is not necessarily the actual wire format. When the `Status` message is
-// exposed in different client libraries and different wire protocols, it can be
-// mapped differently. For example, it will likely be mapped to some exceptions
-// in Java, but more likely mapped to some error codes in C.
-//
-// # Other uses
-//
-// The error model and the `Status` message can be used in a variety of
-// environments, either with or without APIs, to provide a
-// consistent developer experience across different environments.
-//
-// Example uses of this error model include:
-//
-// - Partial errors. If a service needs to return partial errors to the client,
-//     it may embed the `Status` in the normal response to indicate the partial
-//     errors.
-//
-// - Workflow errors. A typical workflow has multiple steps. Each step may
-//     have a `Status` message for error reporting purpose.
-//
-// - Batch operations. If a client uses batch request and batch response, the
-//     `Status` message should be used directly inside batch response, one for
-//     each error sub-response.
-//
-// - Asynchronous operations. If an API call embeds asynchronous operation
-//     results in its response, the status of those operations should be
-//     represented directly using the `Status` message.
-//
-// - Logging. If some API errors are stored in logs, the message `Status` could
-//     be used directly after any stripping needed for security/privacy reasons.
-type Status struct {
-	// The status code, which should be an enum value of [google.rpc.Code][google.rpc.Code].
-	Code int32 `protobuf:"varint,1,opt,name=code" json:"code,omitempty"`
-	// A developer-facing error message, which should be in English. Any
-	// user-facing error message should be localized and sent in the
-	// [google.rpc.Status.details][google.rpc.Status.details] field, or localized by the client.
-	Message string `protobuf:"bytes,2,opt,name=message" json:"message,omitempty"`
-	// A list of messages that carry the error details.  There will be a
-	// common set of message types for APIs to use.
-	Details []*google_protobuf.Any `protobuf:"bytes,3,rep,name=details" json:"details,omitempty"`
-}
-
-func (m *Status) Reset()                    { *m = Status{} }
-func (m *Status) String() string            { return proto.CompactTextString(m) }
-func (*Status) ProtoMessage()               {}
-func (*Status) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-
-func (m *Status) GetCode() int32 {
-	if m != nil {
-		return m.Code
-	}
-	return 0
-}
-
-func (m *Status) GetMessage() string {
-	if m != nil {
-		return m.Message
-	}
-	return ""
-}
-
-func (m *Status) GetDetails() []*google_protobuf.Any {
-	if m != nil {
-		return m.Details
-	}
-	return nil
-}
-
-func init() {
-	proto.RegisterType((*Status)(nil), "google.rpc.Status")
-}
-
-func init() { proto.RegisterFile("google/rpc/status.proto", fileDescriptor0) }
-
-var fileDescriptor0 = []byte{
-	// 209 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x12, 0x4f, 0xcf, 0xcf, 0x4f,
-	0xcf, 0x49, 0xd5, 0x2f, 0x2a, 0x48, 0xd6, 0x2f, 0x2e, 0x49, 0x2c, 0x29, 0x2d, 0xd6, 0x2b, 0x28,
-	0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x82, 0x48, 0xe8, 0x15, 0x15, 0x24, 0x4b, 0x49, 0x42, 0x15, 0x81,
-	0x65, 0x92, 0x4a, 0xd3, 0xf4, 0x13, 0xf3, 0x2a, 0x21, 0xca, 0x94, 0xd2, 0xb8, 0xd8, 0x82, 0xc1,
-	0xda, 0x84, 0x84, 0xb8, 0x58, 0x92, 0xf3, 0x53, 0x52, 0x25, 0x18, 0x15, 0x18, 0x35, 0x58, 0x83,
-	0xc0, 0x6c, 0x21, 0x09, 0x2e, 0xf6, 0xdc, 0xd4, 0xe2, 0xe2, 0xc4, 0xf4, 0x54, 0x09, 0x26, 0x05,
-	0x46, 0x0d, 0xce, 0x20, 0x18, 0x57, 0x48, 0x8f, 0x8b, 0x3d, 0x25, 0xb5, 0x24, 0x31, 0x33, 0xa7,
-	0x58, 0x82, 0x59, 0x81, 0x59, 0x83, 0xdb, 0x48, 0x44, 0x0f, 0x6a, 0x21, 0xcc, 0x12, 0x3d, 0xc7,
-	0xbc, 0xca, 0x20, 0x98, 0x22, 0xa7, 0x38, 0x2e, 0xbe, 0xe4, 0xfc, 0x5c, 0x3d, 0x84, 0xa3, 0x9c,
-	0xb8, 0x21, 0xf6, 0x06, 0x80, 0x94, 0x07, 0x30, 0x46, 0x99, 0x43, 0xa5, 0xd2, 0xf3, 0x73, 0x12,
-	0xf3, 0xd2, 0xf5, 0xf2, 0x8b, 0xd2, 0xf5, 0xd3, 0x53, 0xf3, 0xc0, 0x86, 0xe9, 0x43, 0xa4, 0x12,
-	0x0b, 0x32, 0x8b, 0x91, 0xfc, 0x69, 0x0d, 0xa1, 0x16, 0x31, 0x31, 0x07, 0x05, 0x38, 0x27, 0xb1,
-	0x81, 0x55, 0x1a, 0x03, 0x02, 0x00, 0x00, 0xff, 0xff, 0xa4, 0x53, 0xf0, 0x7c, 0x10, 0x01, 0x00,
-	0x00,
-}

cmd/vendor/google.golang.org/grpc/balancer.go

@@ -35,7 +35,6 @@ package grpc
 
 import (
 	"fmt"
-	"net"
 	"sync"
 
 	"golang.org/x/net/context"
@@ -61,10 +60,6 @@ type BalancerConfig struct {
 	// use to dial to a remote load balancer server. The Balancer implementations
 	// can ignore this if it does not need to talk to another party securely.
 	DialCreds credentials.TransportCredentials
-	// Dialer is the custom dialer the Balancer implementation can use to dial
-	// to a remote load balancer server. The Balancer implementations
-	// can ignore this if it doesn't need to talk to remote balancer.
-	Dialer func(context.Context, string) (net.Conn, error)
 }
 
 // BalancerGetOptions configures a Get call.
@@ -390,9 +385,6 @@ func (rr *roundRobin) Notify() <-chan []Address {
 func (rr *roundRobin) Close() error {
 	rr.mu.Lock()
 	defer rr.mu.Unlock()
-	if rr.done {
-		return errBalancerClosed
-	}
 	rr.done = true
 	if rr.w != nil {
 		rr.w.Close()

cmd/vendor/google.golang.org/grpc/call.go

@@ -43,7 +43,6 @@ import (
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/peer"
 	"google.golang.org/grpc/stats"
-	"google.golang.org/grpc/status"
 	"google.golang.org/grpc/transport"
 )
 
@@ -73,17 +72,14 @@ func recvResponse(ctx context.Context, dopts dialOptions, t transport.ClientTran
 		}
 	}
 	for {
-		if c.maxReceiveMessageSize == nil {
-			return Errorf(codes.Internal, "callInfo maxReceiveMessageSize field uninitialized(nil)")
-		}
-		if err = recv(p, dopts.codec, stream, dopts.dc, reply, *c.maxReceiveMessageSize, inPayload); err != nil {
+		if err = recv(p, dopts.codec, stream, dopts.dc, reply, dopts.maxMsgSize, inPayload); err != nil {
 			if err == io.EOF {
 				break
 			}
 			return
 		}
 	}
-	if inPayload != nil && err == io.EOF && stream.Status().Code() == codes.OK {
+	if inPayload != nil && err == io.EOF && stream.StatusCode() == codes.OK {
 		// TODO in the current implementation, inTrailer may be handled before inPayload in some cases.
 		// Fix the order if necessary.
 		dopts.copts.StatsHandler.HandleRPC(ctx, inPayload)
@@ -96,7 +92,11 @@ func recvResponse(ctx context.Context, dopts dialOptions, t transport.ClientTran
 }
 
 // sendRequest writes out various information of an RPC such as Context and Message.
-func sendRequest(ctx context.Context, dopts dialOptions, compressor Compressor, c *callInfo, callHdr *transport.CallHdr, stream *transport.Stream, t transport.ClientTransport, args interface{}, opts *transport.Options) (err error) {
+func sendRequest(ctx context.Context, dopts dialOptions, compressor Compressor, callHdr *transport.CallHdr, t transport.ClientTransport, args interface{}, opts *transport.Options) (_ *transport.Stream, err error) {
+	stream, err := t.NewStream(ctx, callHdr)
+	if err != nil {
+		return nil, err
+	}
 	defer func() {
 		if err != nil {
 			// If err is connection error, t will be closed, no need to close stream here.
@@ -119,13 +119,7 @@ func sendRequest(ctx context.Context, dopts dialOptions, compressor Compressor,
 	}
 	outBuf, err := encode(dopts.codec, args, compressor, cbuf, outPayload)
 	if err != nil {
-		return err
-	}
-	if c.maxSendMessageSize == nil {
-		return Errorf(codes.Internal, "callInfo maxSendMessageSize field uninitialized(nil)")
-	}
-	if len(outBuf) > *c.maxSendMessageSize {
-		return Errorf(codes.ResourceExhausted, "grpc: trying to send message larger than max (%d vs. %d)", len(outBuf), *c.maxSendMessageSize)
+		return nil, Errorf(codes.Internal, "grpc: %v", err)
 	}
 	err = t.Write(stream, outBuf, opts)
 	if err == nil && outPayload != nil {
@@ -136,10 +130,10 @@ func sendRequest(ctx context.Context, dopts dialOptions, compressor Compressor,
 	// does not exist.) so that t.Write could get io.EOF from wait(...). Leave the following
 	// recvResponse to get the final status.
 	if err != nil && err != io.EOF {
-		return err
+		return nil, err
 	}
 	// Sent successfully.
-	return nil
+	return stream, nil
 }
 
 // Invoke sends the RPC request on the wire and returns after response is received.
@@ -154,18 +148,14 @@ func Invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
 
 func invoke(ctx context.Context, method string, args, reply interface{}, cc *ClientConn, opts ...CallOption) (e error) {
 	c := defaultCallInfo
-	mc := cc.GetMethodConfig(method)
-	if mc.WaitForReady != nil {
-		c.failFast = !*mc.WaitForReady
-	}
-
-	if mc.Timeout != nil && *mc.Timeout >= 0 {
+	if mc, ok := cc.getMethodConfig(method); ok {
+		c.failFast = !mc.WaitForReady
+		if mc.Timeout > 0 {
 			var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, *mc.Timeout)
+			ctx, cancel = context.WithTimeout(ctx, mc.Timeout)
 			defer cancel()
 		}
-
-	opts = append(cc.dopts.callOptions, opts...)
+	}
 	for _, o := range opts {
 		if err := o.before(&c); err != nil {
 			return toRPCErr(err)
@@ -176,10 +166,6 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
 			o.after(&c)
 		}
 	}()
-
-	c.maxSendMessageSize = getMaxSize(mc.MaxReqSize, c.maxSendMessageSize, defaultClientMaxSendMessageSize)
-	c.maxReceiveMessageSize = getMaxSize(mc.MaxRespSize, c.maxReceiveMessageSize, defaultClientMaxReceiveMessageSize)
-
 	if EnableTracing {
 		c.traceInfo.tr = trace.New("grpc.Sent."+methodFamily(method), method)
 		defer c.traceInfo.tr.Finish()
@@ -196,25 +182,26 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
 			}
 		}()
 	}
-	ctx = newContextWithRPCInfo(ctx)
 	sh := cc.dopts.copts.StatsHandler
 	if sh != nil {
-		ctx = sh.TagRPC(ctx, &stats.RPCTagInfo{FullMethodName: method, FailFast: c.failFast})
+		ctx = sh.TagRPC(ctx, &stats.RPCTagInfo{FullMethodName: method})
 		begin := &stats.Begin{
 			Client:    true,
 			BeginTime: time.Now(),
 			FailFast:  c.failFast,
 		}
 		sh.HandleRPC(ctx, begin)
+	}
 	defer func() {
+		if sh != nil {
 			end := &stats.End{
 				Client:  true,
 				EndTime: time.Now(),
 				Error:   e,
 			}
 			sh.HandleRPC(ctx, end)
-		}()
 		}
+	}()
 	topts := &transport.Options{
 		Last:  true,
 		Delay: false,
@@ -236,9 +223,6 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
 		if cc.dopts.cp != nil {
 			callHdr.SendCompress = cc.dopts.cp.Type()
 		}
-		if c.creds != nil {
-			callHdr.Creds = c.creds
-		}
 
 		gopts := BalancerGetOptions{
 			BlockingWait: !c.failFast,
@@ -246,7 +230,7 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
 		t, put, err = cc.getTransport(ctx, gopts)
 		if err != nil {
 			// TODO(zhaoq): Probably revisit the error handling.
-			if _, ok := status.FromError(err); ok {
+			if _, ok := err.(*rpcError); ok {
 				return err
 			}
 			if err == errConnClosing || err == errConnUnavailable {
@@ -261,35 +245,19 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
 		if c.traceInfo.tr != nil {
 			c.traceInfo.tr.LazyLog(&payload{sent: true, msg: args}, true)
 		}
-		stream, err = t.NewStream(ctx, callHdr)
+		stream, err = sendRequest(ctx, cc.dopts, cc.dopts.cp, callHdr, t, args, topts)
 		if err != nil {
 			if put != nil {
-				if _, ok := err.(transport.ConnectionError); ok {
-					// If error is connection error, transport was sending data on wire,
-					// and we are not sure if anything has been sent on wire.
-					// If error is not connection error, we are sure nothing has been sent.
-					updateRPCInfoInContext(ctx, rpcInfo{bytesSent: true, bytesReceived: false})
-				}
-				put()
-			}
-			if _, ok := err.(transport.ConnectionError); (ok || err == transport.ErrStreamDrain) && !c.failFast {
-				continue
-			}
-			return toRPCErr(err)
-		}
-		err = sendRequest(ctx, cc.dopts, cc.dopts.cp, &c, callHdr, stream, t, args, topts)
-		if err != nil {
-			if put != nil {
-				updateRPCInfoInContext(ctx, rpcInfo{
-					bytesSent:     stream.BytesSent(),
-					bytesReceived: stream.BytesReceived(),
-				})
 				put()
+				put = nil
 			}
 			// Retry a non-failfast RPC when
 			// i) there is a connection error; or
 			// ii) the server started to drain before this RPC was initiated.
-			if _, ok := err.(transport.ConnectionError); (ok || err == transport.ErrStreamDrain) && !c.failFast {
+			if _, ok := err.(transport.ConnectionError); ok || err == transport.ErrStreamDrain {
+				if c.failFast {
+					return toRPCErr(err)
+				}
 				continue
 			}
 			return toRPCErr(err)
@@ -297,13 +265,13 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
 		err = recvResponse(ctx, cc.dopts, t, &c, stream, reply)
 		if err != nil {
 			if put != nil {
-				updateRPCInfoInContext(ctx, rpcInfo{
-					bytesSent:     stream.BytesSent(),
-					bytesReceived: stream.BytesReceived(),
-				})
 				put()
+				put = nil
+			}
+			if _, ok := err.(transport.ConnectionError); ok || err == transport.ErrStreamDrain {
+				if c.failFast {
+					return toRPCErr(err)
 				}
-			if _, ok := err.(transport.ConnectionError); (ok || err == transport.ErrStreamDrain) && !c.failFast {
 				continue
 			}
 			return toRPCErr(err)
@@ -313,12 +281,9 @@ func invoke(ctx context.Context, method string, args, reply interface{}, cc *Cli
 		}
 		t.CloseStream(stream, nil)
 		if put != nil {
-			updateRPCInfoInContext(ctx, rpcInfo{
-				bytesSent:     stream.BytesSent(),
-				bytesReceived: stream.BytesReceived(),
-			})
 			put()
+			put = nil
 		}
-		return stream.Status().Err()
+		return Errorf(stream.StatusCode(), "%s", stream.StatusDesc())
 	}
 }

cmd/vendor/google.golang.org/grpc/clientconn.go

@@ -36,6 +36,7 @@ package grpc
 import (
 	"errors"
 	"fmt"
+	"math"
 	"net"
 	"strings"
 	"sync"
@@ -56,7 +57,8 @@ var (
 	ErrClientConnClosing = errors.New("grpc: the client connection is closing")
 	// ErrClientConnTimeout indicates that the ClientConn cannot establish the
 	// underlying connections within the specified timeout.
-	// DEPRECATED: Please use context.DeadlineExceeded instead.
+	// DEPRECATED: Please use context.DeadlineExceeded instead. This error will be
+	// removed in Q1 2017.
 	ErrClientConnTimeout = errors.New("grpc: timed out when dialing")
 
 	// errNoTransportSecurity indicates that there is no transport security
@@ -78,8 +80,7 @@ var (
 	errConnClosing = errors.New("grpc: the connection is closing")
 	// errConnUnavailable indicates that the connection is unavailable.
 	errConnUnavailable = errors.New("grpc: the connection is unavailable")
-	// errBalancerClosed indicates that the balancer is closed.
-	errBalancerClosed = errors.New("grpc: balancer is closed")
+	errNoAddr          = errors.New("grpc: there is no address available to dial")
 	// minimum time to give a connection to complete
 	minConnectTimeout = 20 * time.Second
 )
@@ -99,42 +100,18 @@ type dialOptions struct {
 	timeout    time.Duration
 	scChan     <-chan ServiceConfig
 	copts      transport.ConnectOptions
-	callOptions []CallOption
+	maxMsgSize int
 }
 
-const (
-	defaultClientMaxReceiveMessageSize = 1024 * 1024 * 4
-	defaultClientMaxSendMessageSize    = 1024 * 1024 * 4
-)
+const defaultClientMaxMsgSize = math.MaxInt32
 
 // DialOption configures how we set up the connection.
 type DialOption func(*dialOptions)
 
-// WithInitialWindowSize returns a DialOption which sets the value for initial window size on a stream.
-// The lower bound for window size is 64K and any value smaller than that will be ignored.
-func WithInitialWindowSize(s int32) DialOption {
-	return func(o *dialOptions) {
-		o.copts.InitialWindowSize = s
-	}
-}
-
-// WithInitialConnWindowSize returns a DialOption which sets the value for initial window size on a connection.
-// The lower bound for window size is 64K and any value smaller than that will be ignored.
-func WithInitialConnWindowSize(s int32) DialOption {
-	return func(o *dialOptions) {
-		o.copts.InitialConnWindowSize = s
-	}
-}
-
-// WithMaxMsgSize returns a DialOption which sets the maximum message size the client can receive. Deprecated: use WithDefaultCallOptions(MaxCallRecvMsgSize(s)) instead.
+// WithMaxMsgSize returns a DialOption which sets the maximum message size the client can receive.
 func WithMaxMsgSize(s int) DialOption {
-	return WithDefaultCallOptions(MaxCallRecvMsgSize(s))
-}
-
-// WithDefaultCallOptions returns a DialOption which sets the default CallOptions for calls over the connection.
-func WithDefaultCallOptions(cos ...CallOption) DialOption {
 	return func(o *dialOptions) {
-		o.callOptions = append(o.callOptions, cos...)
+		o.maxMsgSize = s
 	}
 }
 
@@ -229,7 +206,7 @@ func WithTransportCredentials(creds credentials.TransportCredentials) DialOption
 }
 
 // WithPerRPCCredentials returns a DialOption which sets
-// credentials and places auth state on each outbound RPC.
+// credentials which will place auth state on each outbound RPC.
 func WithPerRPCCredentials(creds credentials.PerRPCCredentials) DialOption {
 	return func(o *dialOptions) {
 		o.copts.PerRPCCredentials = append(o.copts.PerRPCCredentials, creds)
@@ -266,7 +243,7 @@ func WithStatsHandler(h stats.Handler) DialOption {
 	}
 }
 
-// FailOnNonTempDialError returns a DialOption that specifies if gRPC fails on non-temporary dial errors.
+// FailOnNonTempDialError returns a DialOption that specified if gRPC fails on non-temporary dial errors.
 // If f is true, and dialer returns a non-temporary error, gRPC will fail the connection to the network
 // address and won't try to reconnect.
 // The default value of FailOnNonTempDialError is false.
@@ -320,29 +297,22 @@ func Dial(target string, opts ...DialOption) (*ClientConn, error) {
 }
 
 // DialContext creates a client connection to the given target. ctx can be used to
-// cancel or expire the pending connection. Once this function returns, the
+// cancel or expire the pending connecting. Once this function returns, the
 // cancellation and expiration of ctx will be noop. Users should call ClientConn.Close
 // to terminate all the pending operations after this function returns.
+// This is the EXPERIMENTAL API.
 func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *ClientConn, err error) {
 	cc := &ClientConn{
 		target: target,
 		conns:  make(map[Address]*addrConn),
 	}
 	cc.ctx, cc.cancel = context.WithCancel(context.Background())
-
+	cc.dopts.maxMsgSize = defaultClientMaxMsgSize
 	for _, opt := range opts {
 		opt(&cc.dopts)
 	}
-	cc.mkp = cc.dopts.copts.KeepaliveParams
-
-	if cc.dopts.copts.Dialer == nil {
-		cc.dopts.copts.Dialer = newProxyDialer(
-			func(ctx context.Context, addr string) (net.Conn, error) {
-				return dialContext(ctx, "tcp", addr)
-			},
-		)
-	}
 
+	grpcUA := "grpc-go/" + Version
 	if cc.dopts.copts.UserAgent != "" {
 		cc.dopts.copts.UserAgent += " " + grpcUA
 	} else {
@@ -367,16 +337,15 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
 		}
 	}()
 
-	scSet := false
 	if cc.dopts.scChan != nil {
-		// Try to get an initial service config.
+		// Wait for the initial service config.
 		select {
 		case sc, ok := <-cc.dopts.scChan:
 			if ok {
 				cc.sc = sc
-				scSet = true
 			}
-		default:
+		case <-ctx.Done():
+			return nil, ctx.Err()
 		}
 	}
 	// Set defaults.
@@ -392,44 +361,53 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
 	} else if cc.dopts.insecure && cc.dopts.copts.Authority != "" {
 		cc.authority = cc.dopts.copts.Authority
 	} else {
-		cc.authority = target
+		colonPos := strings.LastIndex(target, ":")
+		if colonPos == -1 {
+			colonPos = len(target)
 		}
+		cc.authority = target[:colonPos]
+	}
+	var ok bool
 	waitC := make(chan error, 1)
 	go func() {
-		defer close(waitC)
+		var addrs []Address
 		if cc.dopts.balancer == nil && cc.sc.LB != nil {
 			cc.dopts.balancer = cc.sc.LB
 		}
-		if cc.dopts.balancer != nil {
+		if cc.dopts.balancer == nil {
+			// Connect to target directly if balancer is nil.
+			addrs = append(addrs, Address{Addr: target})
+		} else {
 			var credsClone credentials.TransportCredentials
 			if creds != nil {
 				credsClone = creds.Clone()
 			}
 			config := BalancerConfig{
 				DialCreds: credsClone,
-				Dialer:    cc.dopts.copts.Dialer,
 			}
 			if err := cc.dopts.balancer.Start(target, config); err != nil {
 				waitC <- err
 				return
 			}
 			ch := cc.dopts.balancer.Notify()
-			if ch != nil {
-				if cc.dopts.block {
-					doneChan := make(chan struct{})
-					go cc.lbWatcher(doneChan)
-					<-doneChan
+			if ch == nil {
+				// There is no name resolver installed.
+				addrs = append(addrs, Address{Addr: target})
 			} else {
-					go cc.lbWatcher(nil)
-				}
+				addrs, ok = <-ch
+				if !ok || len(addrs) == 0 {
+					waitC <- errNoAddr
 					return
 				}
 			}
-		// No balancer, or no resolver within the balancer.  Connect directly.
-		if err := cc.resetAddrConn(Address{Addr: target}, cc.dopts.block, nil); err != nil {
+		}
+		for _, a := range addrs {
+			if err := cc.resetAddrConn(a, false, nil); err != nil {
 				waitC <- err
 				return
 			}
+		}
+		close(waitC)
 	}()
 	select {
 	case <-ctx.Done():
@@ -439,21 +417,16 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
 			return nil, err
 		}
 	}
-	if cc.dopts.scChan != nil && !scSet {
-		// Blocking wait for the initial service config.
-		select {
-		case sc, ok := <-cc.dopts.scChan:
+
+	// If balancer is nil or balancer.Notify() is nil, ok will be false here.
+	// The lbWatcher goroutine will not be created.
 	if ok {
-				cc.sc = sc
-			}
-		case <-ctx.Done():
-			return nil, ctx.Err()
-		}
+		go cc.lbWatcher()
 	}
+
 	if cc.dopts.scChan != nil {
 		go cc.scWatcher()
 	}
-
 	return cc, nil
 }
 
@@ -502,14 +475,9 @@ type ClientConn struct {
 	mu    sync.RWMutex
 	sc    ServiceConfig
 	conns map[Address]*addrConn
-	// Keepalive parameter can be udated if a GoAway is received.
-	mkp keepalive.ClientParameters
 }
 
-// lbWatcher watches the Notify channel of the balancer in cc and manages
-// connections accordingly.  If doneChan is not nil, it is closed after the
-// first successfull connection is made.
-func (cc *ClientConn) lbWatcher(doneChan chan struct{}) {
+func (cc *ClientConn) lbWatcher() {
 	for addrs := range cc.dopts.balancer.Notify() {
 		var (
 			add []Address   // Addresses need to setup connections.
@@ -536,15 +504,7 @@ func (cc *ClientConn) lbWatcher(doneChan chan struct{}) {
 		}
 		cc.mu.Unlock()
 		for _, a := range add {
-			if doneChan != nil {
-				err := cc.resetAddrConn(a, true, nil)
-				if err == nil {
-					close(doneChan)
-					doneChan = nil
-				}
-			} else {
-				cc.resetAddrConn(a, false, nil)
-			}
+			cc.resetAddrConn(a, true, nil)
 		}
 		for _, c := range del {
 			c.tearDown(errConnDrain)
@@ -573,15 +533,12 @@ func (cc *ClientConn) scWatcher() {
 // resetAddrConn creates an addrConn for addr and adds it to cc.conns.
 // If there is an old addrConn for addr, it will be torn down, using tearDownErr as the reason.
 // If tearDownErr is nil, errConnDrain will be used instead.
-func (cc *ClientConn) resetAddrConn(addr Address, block bool, tearDownErr error) error {
+func (cc *ClientConn) resetAddrConn(addr Address, skipWait bool, tearDownErr error) error {
 	ac := &addrConn{
 		cc:    cc,
 		addr:  addr,
 		dopts: cc.dopts,
 	}
-	cc.mu.RLock()
-	ac.dopts.copts.KeepaliveParams = cc.mkp
-	cc.mu.RUnlock()
 	ac.ctx, ac.cancel = context.WithCancel(cc.ctx)
 	ac.stateCV = sync.NewCond(&ac.mu)
 	if EnableTracing {
@@ -626,7 +583,8 @@ func (cc *ClientConn) resetAddrConn(addr Address, block bool, tearDownErr error)
 			stale.tearDown(tearDownErr)
 		}
 	}
-	if block {
+	// skipWait may overwrite the decision in ac.dopts.block.
+	if ac.dopts.block && !skipWait {
 		if err := ac.resetTransport(false); err != nil {
 			if err != errConnClosing {
 				// Tear down ac and delete it from cc.conns.
@@ -659,23 +617,12 @@ func (cc *ClientConn) resetAddrConn(addr Address, block bool, tearDownErr error)
 	return nil
 }
 
-// GetMethodConfig gets the method config of the input method.
-// If there's an exact match for input method (i.e. /service/method), we return
-// the corresponding MethodConfig.
-// If there isn't an exact match for the input method, we look for the default config
-// under the service (i.e /service/). If there is a default MethodConfig for
-// the serivce, we return it.
-// Otherwise, we return an empty MethodConfig.
-func (cc *ClientConn) GetMethodConfig(method string) MethodConfig {
-	// TODO: Avoid the locking here.
+// TODO: Avoid the locking here.
+func (cc *ClientConn) getMethodConfig(method string) (m MethodConfig, ok bool) {
 	cc.mu.RLock()
 	defer cc.mu.RUnlock()
-	m, ok := cc.sc.Methods[method]
-	if !ok {
-		i := strings.LastIndex(method, "/")
-		m, _ = cc.sc.Methods[method[:i+1]]
-	}
-	return m
+	m, ok = cc.sc.Methods[method]
+	return
 }
 
 func (cc *ClientConn) getTransport(ctx context.Context, opts BalancerGetOptions) (transport.ClientTransport, func(), error) {
@@ -716,7 +663,6 @@ func (cc *ClientConn) getTransport(ctx context.Context, opts BalancerGetOptions)
 	}
 	if !ok {
 		if put != nil {
-			updateRPCInfoInContext(ctx, rpcInfo{bytesSent: false, bytesReceived: false})
 			put()
 		}
 		return nil, nil, errConnClosing
@@ -724,7 +670,6 @@ func (cc *ClientConn) getTransport(ctx context.Context, opts BalancerGetOptions)
 	t, err := ac.wait(ctx, cc.dopts.balancer != nil, !opts.BlockingWait)
 	if err != nil {
 		if put != nil {
-			updateRPCInfoInContext(ctx, rpcInfo{bytesSent: false, bytesReceived: false})
 			put()
 		}
 		return nil, nil, err
@@ -776,20 +721,6 @@ type addrConn struct {
 	tearDownErr error
 }
 
-// adjustParams updates parameters used to create transports upon
-// receiving a GoAway.
-func (ac *addrConn) adjustParams(r transport.GoAwayReason) {
-	switch r {
-	case transport.TooManyPings:
-		v := 2 * ac.dopts.copts.KeepaliveParams.Time
-		ac.cc.mu.Lock()
-		if v > ac.cc.mkp.Time {
-			ac.cc.mkp.Time = v
-		}
-		ac.cc.mu.Unlock()
-	}
-}
-
 // printf records an event in ac's event log, unless ac has been closed.
 // REQUIRES ac.mu is held.
 func (ac *addrConn) printf(format string, a ...interface{}) {
@@ -898,14 +829,11 @@ func (ac *addrConn) resetTransport(closeTransport bool) error {
 			}
 			ac.mu.Unlock()
 			closeTransport = false
-			timer := time.NewTimer(sleepTime - time.Since(connectTime))
 			select {
-			case <-timer.C:
+			case <-time.After(sleepTime - time.Since(connectTime)):
 			case <-ac.ctx.Done():
-				timer.Stop()
 				return ac.ctx.Err()
 			}
-			timer.Stop()
 			continue
 		}
 		ac.mu.Lock()
@@ -949,7 +877,6 @@ func (ac *addrConn) transportMonitor() {
 			}
 			return
 		case <-t.GoAway():
-			ac.adjustParams(t.GetGoAwayReason())
 			// If GoAway happens without any network I/O error, ac is closed without shutting down the
 			// underlying transport (the transport will be closed when all the pending RPCs finished or
 			// failed.).
@@ -958,9 +885,9 @@ func (ac *addrConn) transportMonitor() {
 			// In both cases, a new ac is created.
 			select {
 			case <-t.Error():
-				ac.cc.resetAddrConn(ac.addr, false, errNetworkIO)
+				ac.cc.resetAddrConn(ac.addr, true, errNetworkIO)
 			default:
-				ac.cc.resetAddrConn(ac.addr, false, errConnDrain)
+				ac.cc.resetAddrConn(ac.addr, true, errConnDrain)
 			}
 			return
 		case <-t.Error():
@@ -969,8 +896,7 @@ func (ac *addrConn) transportMonitor() {
 				t.Close()
 				return
 			case <-t.GoAway():
-				ac.adjustParams(t.GetGoAwayReason())
-				ac.cc.resetAddrConn(ac.addr, false, errNetworkIO)
+				ac.cc.resetAddrConn(ac.addr, true, errNetworkIO)
 				return
 			default:
 			}

cmd/vendor/google.golang.org/grpc/codec.go

@@ -1,119 +0,0 @@
-/*
-*
- * Copyright 2014, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
-*/
-
-package grpc
-
-import (
-	"math"
-	"sync"
-
-	"github.com/golang/protobuf/proto"
-)
-
-// Codec defines the interface gRPC uses to encode and decode messages.
-// Note that implementations of this interface must be thread safe;
-// a Codec's methods can be called from concurrent goroutines.
-type Codec interface {
-	// Marshal returns the wire format of v.
-	Marshal(v interface{}) ([]byte, error)
-	// Unmarshal parses the wire format into v.
-	Unmarshal(data []byte, v interface{}) error
-	// String returns the name of the Codec implementation. The returned
-	// string will be used as part of content type in transmission.
-	String() string
-}
-
-// protoCodec is a Codec implementation with protobuf. It is the default codec for gRPC.
-type protoCodec struct {
-}
-
-type cachedProtoBuffer struct {
-	lastMarshaledSize uint32
-	proto.Buffer
-}
-
-func capToMaxInt32(val int) uint32 {
-	if val > math.MaxInt32 {
-		return uint32(math.MaxInt32)
-	}
-	return uint32(val)
-}
-
-func (p protoCodec) marshal(v interface{}, cb *cachedProtoBuffer) ([]byte, error) {
-	protoMsg := v.(proto.Message)
-	newSlice := make([]byte, 0, cb.lastMarshaledSize)
-
-	cb.SetBuf(newSlice)
-	cb.Reset()
-	if err := cb.Marshal(protoMsg); err != nil {
-		return nil, err
-	}
-	out := cb.Bytes()
-	cb.lastMarshaledSize = capToMaxInt32(len(out))
-	return out, nil
-}
-
-func (p protoCodec) Marshal(v interface{}) ([]byte, error) {
-	cb := protoBufferPool.Get().(*cachedProtoBuffer)
-	out, err := p.marshal(v, cb)
-
-	// put back buffer and lose the ref to the slice
-	cb.SetBuf(nil)
-	protoBufferPool.Put(cb)
-	return out, err
-}
-
-func (p protoCodec) Unmarshal(data []byte, v interface{}) error {
-	cb := protoBufferPool.Get().(*cachedProtoBuffer)
-	cb.SetBuf(data)
-	v.(proto.Message).Reset()
-	err := cb.Unmarshal(v.(proto.Message))
-	cb.SetBuf(nil)
-	protoBufferPool.Put(cb)
-	return err
-}
-
-func (protoCodec) String() string {
-	return "proto"
-}
-
-var (
-	protoBufferPool = &sync.Pool{
-		New: func() interface{} {
-			return &cachedProtoBuffer{
-				Buffer:            proto.Buffer{},
-				lastMarshaledSize: 16,
-			}
-		},
-	}
-)

cmd/vendor/google.golang.org/grpc/codes/codes.go

@@ -44,7 +44,7 @@ const (
 	// OK is returned on success.
 	OK Code = 0
 
-	// Canceled indicates the operation was canceled (typically by the caller).
+	// Canceled indicates the operation was cancelled (typically by the caller).
 	Canceled Code = 1
 
 	// Unknown error.  An example of where this error may be returned is

cmd/vendor/google.golang.org/grpc/credentials/credentials.go

@@ -102,10 +102,6 @@ type TransportCredentials interface {
 	// authentication protocol on rawConn for clients. It returns the authenticated
 	// connection and the corresponding auth information about the connection.
 	// Implementations must use the provided context to implement timely cancellation.
-	// gRPC will try to reconnect if the error returned is a temporary error
-	// (io.EOF, context.DeadlineExceeded or err.Temporary() == true).
-	// If the returned error is a wrapper error, implementations should make sure that
-	// the error implements Temporary() to have the correct retry behaviors.
 	ClientHandshake(context.Context, string, net.Conn) (net.Conn, AuthInfo, error)
 	// ServerHandshake does the authentication handshake for servers. It returns
 	// the authenticated connection and the corresponding auth information about
@@ -196,14 +192,14 @@ func NewTLS(c *tls.Config) TransportCredentials {
 	return tc
 }
 
-// NewClientTLSFromCert constructs TLS credentials from the input certificate for client.
+// NewClientTLSFromCert constructs a TLS from the input certificate for client.
 // serverNameOverride is for testing only. If set to a non empty string,
 // it will override the virtual host name of authority (e.g. :authority header field) in requests.
 func NewClientTLSFromCert(cp *x509.CertPool, serverNameOverride string) TransportCredentials {
 	return NewTLS(&tls.Config{ServerName: serverNameOverride, RootCAs: cp})
 }
 
-// NewClientTLSFromFile constructs TLS credentials from the input certificate file for client.
+// NewClientTLSFromFile constructs a TLS from the input certificate file for client.
 // serverNameOverride is for testing only. If set to a non empty string,
 // it will override the virtual host name of authority (e.g. :authority header field) in requests.
 func NewClientTLSFromFile(certFile, serverNameOverride string) (TransportCredentials, error) {
@@ -218,12 +214,12 @@ func NewClientTLSFromFile(certFile, serverNameOverride string) (TransportCredent
 	return NewTLS(&tls.Config{ServerName: serverNameOverride, RootCAs: cp}), nil
 }
 
-// NewServerTLSFromCert constructs TLS credentials from the input certificate for server.
+// NewServerTLSFromCert constructs a TLS from the input certificate for server.
 func NewServerTLSFromCert(cert *tls.Certificate) TransportCredentials {
 	return NewTLS(&tls.Config{Certificates: []tls.Certificate{*cert}})
 }
 
-// NewServerTLSFromFile constructs TLS credentials from the input certificate file and key
+// NewServerTLSFromFile constructs a TLS from the input certificate file and key
 // file for server.
 func NewServerTLSFromFile(certFile, keyFile string) (TransportCredentials, error) {
 	cert, err := tls.LoadX509KeyPair(certFile, keyFile)

cmd/vendor/google.golang.org/grpc/go16.go

@@ -1,113 +0,0 @@
-// +build go1.6,!go1.7
-
-/*
- * Copyright 2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-package grpc
-
-import (
-	"fmt"
-	"io"
-	"net"
-	"net/http"
-	"os"
-
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
-	"google.golang.org/grpc/transport"
-
-	"golang.org/x/net/context"
-)
-
-// dialContext connects to the address on the named network.
-func dialContext(ctx context.Context, network, address string) (net.Conn, error) {
-	return (&net.Dialer{Cancel: ctx.Done()}).Dial(network, address)
-}
-
-func sendHTTPRequest(ctx context.Context, req *http.Request, conn net.Conn) error {
-	req.Cancel = ctx.Done()
-	if err := req.Write(conn); err != nil {
-		return fmt.Errorf("failed to write the HTTP request: %v", err)
-	}
-	return nil
-}
-
-// toRPCErr converts an error into an error from the status package.
-func toRPCErr(err error) error {
-	if _, ok := status.FromError(err); ok {
-		return err
-	}
-	switch e := err.(type) {
-	case transport.StreamError:
-		return status.Error(e.Code, e.Desc)
-	case transport.ConnectionError:
-		return status.Error(codes.Internal, e.Desc)
-	default:
-		switch err {
-		case context.DeadlineExceeded:
-			return status.Error(codes.DeadlineExceeded, err.Error())
-		case context.Canceled:
-			return status.Error(codes.Canceled, err.Error())
-		case ErrClientConnClosing:
-			return status.Error(codes.FailedPrecondition, err.Error())
-		}
-	}
-	return status.Error(codes.Unknown, err.Error())
-}
-
-// convertCode converts a standard Go error into its canonical code. Note that
-// this is only used to translate the error returned by the server applications.
-func convertCode(err error) codes.Code {
-	switch err {
-	case nil:
-		return codes.OK
-	case io.EOF:
-		return codes.OutOfRange
-	case io.ErrClosedPipe, io.ErrNoProgress, io.ErrShortBuffer, io.ErrShortWrite, io.ErrUnexpectedEOF:
-		return codes.FailedPrecondition
-	case os.ErrInvalid:
-		return codes.InvalidArgument
-	case context.Canceled:
-		return codes.Canceled
-	case context.DeadlineExceeded:
-		return codes.DeadlineExceeded
-	}
-	switch {
-	case os.IsExist(err):
-		return codes.AlreadyExists
-	case os.IsNotExist(err):
-		return codes.NotFound
-	case os.IsPermission(err):
-		return codes.PermissionDenied
-	}
-	return codes.Unknown
-}

cmd/vendor/google.golang.org/grpc/go17.go

@@ -1,113 +0,0 @@
-// +build go1.7
-
-/*
- * Copyright 2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-package grpc
-
-import (
-	"context"
-	"io"
-	"net"
-	"net/http"
-	"os"
-
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
-	"google.golang.org/grpc/transport"
-
-	netctx "golang.org/x/net/context"
-)
-
-// dialContext connects to the address on the named network.
-func dialContext(ctx context.Context, network, address string) (net.Conn, error) {
-	return (&net.Dialer{}).DialContext(ctx, network, address)
-}
-
-func sendHTTPRequest(ctx context.Context, req *http.Request, conn net.Conn) error {
-	req = req.WithContext(ctx)
-	if err := req.Write(conn); err != nil {
-		return err
-	}
-	return nil
-}
-
-// toRPCErr converts an error into an error from the status package.
-func toRPCErr(err error) error {
-	if _, ok := status.FromError(err); ok {
-		return err
-	}
-	switch e := err.(type) {
-	case transport.StreamError:
-		return status.Error(e.Code, e.Desc)
-	case transport.ConnectionError:
-		return status.Error(codes.Internal, e.Desc)
-	default:
-		switch err {
-		case context.DeadlineExceeded, netctx.DeadlineExceeded:
-			return status.Error(codes.DeadlineExceeded, err.Error())
-		case context.Canceled, netctx.Canceled:
-			return status.Error(codes.Canceled, err.Error())
-		case ErrClientConnClosing:
-			return status.Error(codes.FailedPrecondition, err.Error())
-		}
-	}
-	return status.Error(codes.Unknown, err.Error())
-}
-
-// convertCode converts a standard Go error into its canonical code. Note that
-// this is only used to translate the error returned by the server applications.
-func convertCode(err error) codes.Code {
-	switch err {
-	case nil:
-		return codes.OK
-	case io.EOF:
-		return codes.OutOfRange
-	case io.ErrClosedPipe, io.ErrNoProgress, io.ErrShortBuffer, io.ErrShortWrite, io.ErrUnexpectedEOF:
-		return codes.FailedPrecondition
-	case os.ErrInvalid:
-		return codes.InvalidArgument
-	case context.Canceled, netctx.Canceled:
-		return codes.Canceled
-	case context.DeadlineExceeded, netctx.DeadlineExceeded:
-		return codes.DeadlineExceeded
-	}
-	switch {
-	case os.IsExist(err):
-		return codes.AlreadyExists
-	case os.IsNotExist(err):
-		return codes.NotFound
-	case os.IsPermission(err):
-		return codes.PermissionDenied
-	}
-	return codes.Unknown
-}

cmd/vendor/google.golang.org/grpc/grpclb.go

@@ -1,765 +0,0 @@
-/*
- *
- * Copyright 2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-package grpc
-
-import (
-	"errors"
-	"fmt"
-	"math/rand"
-	"net"
-	"sync"
-	"time"
-
-	"golang.org/x/net/context"
-	"google.golang.org/grpc/codes"
-	lbpb "google.golang.org/grpc/grpclb/grpc_lb_v1"
-	"google.golang.org/grpc/grpclog"
-	"google.golang.org/grpc/metadata"
-	"google.golang.org/grpc/naming"
-)
-
-// Client API for LoadBalancer service.
-// Mostly copied from generated pb.go file.
-// To avoid circular dependency.
-type loadBalancerClient struct {
-	cc *ClientConn
-}
-
-func (c *loadBalancerClient) BalanceLoad(ctx context.Context, opts ...CallOption) (*balanceLoadClientStream, error) {
-	desc := &StreamDesc{
-		StreamName:    "BalanceLoad",
-		ServerStreams: true,
-		ClientStreams: true,
-	}
-	stream, err := NewClientStream(ctx, desc, c.cc, "/grpc.lb.v1.LoadBalancer/BalanceLoad", opts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &balanceLoadClientStream{stream}
-	return x, nil
-}
-
-type balanceLoadClientStream struct {
-	ClientStream
-}
-
-func (x *balanceLoadClientStream) Send(m *lbpb.LoadBalanceRequest) error {
-	return x.ClientStream.SendMsg(m)
-}
-
-func (x *balanceLoadClientStream) Recv() (*lbpb.LoadBalanceResponse, error) {
-	m := new(lbpb.LoadBalanceResponse)
-	if err := x.ClientStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-// AddressType indicates the address type returned by name resolution.
-type AddressType uint8
-
-const (
-	// Backend indicates the server is a backend server.
-	Backend AddressType = iota
-	// GRPCLB indicates the server is a grpclb load balancer.
-	GRPCLB
-)
-
-// AddrMetadataGRPCLB contains the information the name resolver for grpclb should provide. The
-// name resolver used by the grpclb balancer is required to provide this type of metadata in
-// its address updates.
-type AddrMetadataGRPCLB struct {
-	// AddrType is the type of server (grpc load balancer or backend).
-	AddrType AddressType
-	// ServerName is the name of the grpc load balancer. Used for authentication.
-	ServerName string
-}
-
-// NewGRPCLBBalancer creates a grpclb load balancer.
-func NewGRPCLBBalancer(r naming.Resolver) Balancer {
-	return &balancer{
-		r: r,
-	}
-}
-
-type remoteBalancerInfo struct {
-	addr string
-	// the server name used for authentication with the remote LB server.
-	name string
-}
-
-// grpclbAddrInfo consists of the information of a backend server.
-type grpclbAddrInfo struct {
-	addr      Address
-	connected bool
-	// dropForRateLimiting indicates whether this particular request should be
-	// dropped by the client for rate limiting.
-	dropForRateLimiting bool
-	// dropForLoadBalancing indicates whether this particular request should be
-	// dropped by the client for load balancing.
-	dropForLoadBalancing bool
-}
-
-type balancer struct {
-	r        naming.Resolver
-	target   string
-	mu       sync.Mutex
-	seq      int // a sequence number to make sure addrCh does not get stale addresses.
-	w        naming.Watcher
-	addrCh   chan []Address
-	rbs      []remoteBalancerInfo
-	addrs    []*grpclbAddrInfo
-	next     int
-	waitCh   chan struct{}
-	done     bool
-	expTimer *time.Timer
-	rand     *rand.Rand
-
-	clientStats lbpb.ClientStats
-}
-
-func (b *balancer) watchAddrUpdates(w naming.Watcher, ch chan []remoteBalancerInfo) error {
-	updates, err := w.Next()
-	if err != nil {
-		grpclog.Printf("grpclb: failed to get next addr update from watcher: %v", err)
-		return err
-	}
-	b.mu.Lock()
-	defer b.mu.Unlock()
-	if b.done {
-		return ErrClientConnClosing
-	}
-	for _, update := range updates {
-		switch update.Op {
-		case naming.Add:
-			var exist bool
-			for _, v := range b.rbs {
-				// TODO: Is the same addr with different server name a different balancer?
-				if update.Addr == v.addr {
-					exist = true
-					break
-				}
-			}
-			if exist {
-				continue
-			}
-			md, ok := update.Metadata.(*AddrMetadataGRPCLB)
-			if !ok {
-				// TODO: Revisit the handling here and may introduce some fallback mechanism.
-				grpclog.Printf("The name resolution contains unexpected metadata %v", update.Metadata)
-				continue
-			}
-			switch md.AddrType {
-			case Backend:
-				// TODO: Revisit the handling here and may introduce some fallback mechanism.
-				grpclog.Printf("The name resolution does not give grpclb addresses")
-				continue
-			case GRPCLB:
-				b.rbs = append(b.rbs, remoteBalancerInfo{
-					addr: update.Addr,
-					name: md.ServerName,
-				})
-			default:
-				grpclog.Printf("Received unknow address type %d", md.AddrType)
-				continue
-			}
-		case naming.Delete:
-			for i, v := range b.rbs {
-				if update.Addr == v.addr {
-					copy(b.rbs[i:], b.rbs[i+1:])
-					b.rbs = b.rbs[:len(b.rbs)-1]
-					break
-				}
-			}
-		default:
-			grpclog.Println("Unknown update.Op ", update.Op)
-		}
-	}
-	// TODO: Fall back to the basic round-robin load balancing if the resulting address is
-	// not a load balancer.
-	select {
-	case <-ch:
-	default:
-	}
-	ch <- b.rbs
-	return nil
-}
-
-func (b *balancer) serverListExpire(seq int) {
-	b.mu.Lock()
-	defer b.mu.Unlock()
-	// TODO: gRPC interanls do not clear the connections when the server list is stale.
-	// This means RPCs will keep using the existing server list until b receives new
-	// server list even though the list is expired. Revisit this behavior later.
-	if b.done || seq < b.seq {
-		return
-	}
-	b.next = 0
-	b.addrs = nil
-	// Ask grpc internals to close all the corresponding connections.
-	b.addrCh <- nil
-}
-
-func convertDuration(d *lbpb.Duration) time.Duration {
-	if d == nil {
-		return 0
-	}
-	return time.Duration(d.Seconds)*time.Second + time.Duration(d.Nanos)*time.Nanosecond
-}
-
-func (b *balancer) processServerList(l *lbpb.ServerList, seq int) {
-	if l == nil {
-		return
-	}
-	servers := l.GetServers()
-	expiration := convertDuration(l.GetExpirationInterval())
-	var (
-		sl    []*grpclbAddrInfo
-		addrs []Address
-	)
-	for _, s := range servers {
-		md := metadata.Pairs("lb-token", s.LoadBalanceToken)
-		addr := Address{
-			Addr:     fmt.Sprintf("%s:%d", net.IP(s.IpAddress), s.Port),
-			Metadata: &md,
-		}
-		sl = append(sl, &grpclbAddrInfo{
-			addr:                 addr,
-			dropForRateLimiting:  s.DropForRateLimiting,
-			dropForLoadBalancing: s.DropForLoadBalancing,
-		})
-		addrs = append(addrs, addr)
-	}
-	b.mu.Lock()
-	defer b.mu.Unlock()
-	if b.done || seq < b.seq {
-		return
-	}
-	if len(sl) > 0 {
-		// reset b.next to 0 when replacing the server list.
-		b.next = 0
-		b.addrs = sl
-		b.addrCh <- addrs
-		if b.expTimer != nil {
-			b.expTimer.Stop()
-			b.expTimer = nil
-		}
-		if expiration > 0 {
-			b.expTimer = time.AfterFunc(expiration, func() {
-				b.serverListExpire(seq)
-			})
-		}
-	}
-	return
-}
-
-func (b *balancer) sendLoadReport(s *balanceLoadClientStream, interval time.Duration, done <-chan struct{}) {
-	ticker := time.NewTicker(interval)
-	defer ticker.Stop()
-	for {
-		select {
-		case <-ticker.C:
-		case <-done:
-			return
-		}
-		b.mu.Lock()
-		stats := b.clientStats
-		b.clientStats = lbpb.ClientStats{} // Clear the stats.
-		b.mu.Unlock()
-		t := time.Now()
-		stats.Timestamp = &lbpb.Timestamp{
-			Seconds: t.Unix(),
-			Nanos:   int32(t.Nanosecond()),
-		}
-		if err := s.Send(&lbpb.LoadBalanceRequest{
-			LoadBalanceRequestType: &lbpb.LoadBalanceRequest_ClientStats{
-				ClientStats: &stats,
-			},
-		}); err != nil {
-			grpclog.Printf("grpclb: failed to send load report: %v", err)
-			return
-		}
-	}
-}
-
-func (b *balancer) callRemoteBalancer(lbc *loadBalancerClient, seq int) (retry bool) {
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-	stream, err := lbc.BalanceLoad(ctx)
-	if err != nil {
-		grpclog.Printf("grpclb: failed to perform RPC to the remote balancer %v", err)
-		return
-	}
-	b.mu.Lock()
-	if b.done {
-		b.mu.Unlock()
-		return
-	}
-	b.mu.Unlock()
-	initReq := &lbpb.LoadBalanceRequest{
-		LoadBalanceRequestType: &lbpb.LoadBalanceRequest_InitialRequest{
-			InitialRequest: &lbpb.InitialLoadBalanceRequest{
-				Name: b.target,
-			},
-		},
-	}
-	if err := stream.Send(initReq); err != nil {
-		grpclog.Printf("grpclb: failed to send init request: %v", err)
-		// TODO: backoff on retry?
-		return true
-	}
-	reply, err := stream.Recv()
-	if err != nil {
-		grpclog.Printf("grpclb: failed to recv init response: %v", err)
-		// TODO: backoff on retry?
-		return true
-	}
-	initResp := reply.GetInitialResponse()
-	if initResp == nil {
-		grpclog.Println("grpclb: reply from remote balancer did not include initial response.")
-		return
-	}
-	// TODO: Support delegation.
-	if initResp.LoadBalancerDelegate != "" {
-		// delegation
-		grpclog.Println("TODO: Delegation is not supported yet.")
-		return
-	}
-	streamDone := make(chan struct{})
-	defer close(streamDone)
-	b.mu.Lock()
-	b.clientStats = lbpb.ClientStats{} // Clear client stats.
-	b.mu.Unlock()
-	if d := convertDuration(initResp.ClientStatsReportInterval); d > 0 {
-		go b.sendLoadReport(stream, d, streamDone)
-	}
-	// Retrieve the server list.
-	for {
-		reply, err := stream.Recv()
-		if err != nil {
-			grpclog.Printf("grpclb: failed to recv server list: %v", err)
-			break
-		}
-		b.mu.Lock()
-		if b.done || seq < b.seq {
-			b.mu.Unlock()
-			return
-		}
-		b.seq++ // tick when receiving a new list of servers.
-		seq = b.seq
-		b.mu.Unlock()
-		if serverList := reply.GetServerList(); serverList != nil {
-			b.processServerList(serverList, seq)
-		}
-	}
-	return true
-}
-
-func (b *balancer) Start(target string, config BalancerConfig) error {
-	b.rand = rand.New(rand.NewSource(time.Now().Unix()))
-	// TODO: Fall back to the basic direct connection if there is no name resolver.
-	if b.r == nil {
-		return errors.New("there is no name resolver installed")
-	}
-	b.target = target
-	b.mu.Lock()
-	if b.done {
-		b.mu.Unlock()
-		return ErrClientConnClosing
-	}
-	b.addrCh = make(chan []Address)
-	w, err := b.r.Resolve(target)
-	if err != nil {
-		b.mu.Unlock()
-		grpclog.Printf("grpclb: failed to resolve address: %v, err: %v", target, err)
-		return err
-	}
-	b.w = w
-	b.mu.Unlock()
-	balancerAddrsCh := make(chan []remoteBalancerInfo, 1)
-	// Spawn a goroutine to monitor the name resolution of remote load balancer.
-	go func() {
-		for {
-			if err := b.watchAddrUpdates(w, balancerAddrsCh); err != nil {
-				grpclog.Printf("grpclb: the naming watcher stops working due to %v.\n", err)
-				close(balancerAddrsCh)
-				return
-			}
-		}
-	}()
-	// Spawn a goroutine to talk to the remote load balancer.
-	go func() {
-		var (
-			cc *ClientConn
-			// ccError is closed when there is an error in the current cc.
-			// A new rb should be picked from rbs and connected.
-			ccError chan struct{}
-			rb      *remoteBalancerInfo
-			rbs     []remoteBalancerInfo
-			rbIdx   int
-		)
-
-		defer func() {
-			if ccError != nil {
-				select {
-				case <-ccError:
-				default:
-					close(ccError)
-				}
-			}
-			if cc != nil {
-				cc.Close()
-			}
-		}()
-
-		for {
-			var ok bool
-			select {
-			case rbs, ok = <-balancerAddrsCh:
-				if !ok {
-					return
-				}
-				foundIdx := -1
-				if rb != nil {
-					for i, trb := range rbs {
-						if trb == *rb {
-							foundIdx = i
-							break
-						}
-					}
-				}
-				if foundIdx >= 0 {
-					if foundIdx >= 1 {
-						// Move the address in use to the beginning of the list.
-						b.rbs[0], b.rbs[foundIdx] = b.rbs[foundIdx], b.rbs[0]
-						rbIdx = 0
-					}
-					continue // If found, don't dial new cc.
-				} else if len(rbs) > 0 {
-					// Pick a random one from the list, instead of always using the first one.
-					if l := len(rbs); l > 1 && rb != nil {
-						tmpIdx := b.rand.Intn(l - 1)
-						b.rbs[0], b.rbs[tmpIdx] = b.rbs[tmpIdx], b.rbs[0]
-					}
-					rbIdx = 0
-					rb = &rbs[0]
-				} else {
-					// foundIdx < 0 && len(rbs) <= 0.
-					rb = nil
-				}
-			case <-ccError:
-				ccError = nil
-				if rbIdx < len(rbs)-1 {
-					rbIdx++
-					rb = &rbs[rbIdx]
-				} else {
-					rb = nil
-				}
-			}
-
-			if rb == nil {
-				continue
-			}
-
-			if cc != nil {
-				cc.Close()
-			}
-			// Talk to the remote load balancer to get the server list.
-			var (
-				err   error
-				dopts []DialOption
-			)
-			if creds := config.DialCreds; creds != nil {
-				if rb.name != "" {
-					if err := creds.OverrideServerName(rb.name); err != nil {
-						grpclog.Printf("grpclb: failed to override the server name in the credentials: %v", err)
-						continue
-					}
-				}
-				dopts = append(dopts, WithTransportCredentials(creds))
-			} else {
-				dopts = append(dopts, WithInsecure())
-			}
-			if dialer := config.Dialer; dialer != nil {
-				// WithDialer takes a different type of function, so we instead use a special DialOption here.
-				dopts = append(dopts, func(o *dialOptions) { o.copts.Dialer = dialer })
-			}
-			ccError = make(chan struct{})
-			cc, err = Dial(rb.addr, dopts...)
-			if err != nil {
-				grpclog.Printf("grpclb: failed to setup a connection to the remote balancer %v: %v", rb.addr, err)
-				close(ccError)
-				continue
-			}
-			b.mu.Lock()
-			b.seq++ // tick when getting a new balancer address
-			seq := b.seq
-			b.next = 0
-			b.mu.Unlock()
-			go func(cc *ClientConn, ccError chan struct{}) {
-				lbc := &loadBalancerClient{cc}
-				b.callRemoteBalancer(lbc, seq)
-				cc.Close()
-				select {
-				case <-ccError:
-				default:
-					close(ccError)
-				}
-			}(cc, ccError)
-		}
-	}()
-	return nil
-}
-
-func (b *balancer) down(addr Address, err error) {
-	b.mu.Lock()
-	defer b.mu.Unlock()
-	for _, a := range b.addrs {
-		if addr == a.addr {
-			a.connected = false
-			break
-		}
-	}
-}
-
-func (b *balancer) Up(addr Address) func(error) {
-	b.mu.Lock()
-	defer b.mu.Unlock()
-	if b.done {
-		return nil
-	}
-	var cnt int
-	for _, a := range b.addrs {
-		if a.addr == addr {
-			if a.connected {
-				return nil
-			}
-			a.connected = true
-		}
-		if a.connected && !a.dropForRateLimiting && !a.dropForLoadBalancing {
-			cnt++
-		}
-	}
-	// addr is the only one which is connected. Notify the Get() callers who are blocking.
-	if cnt == 1 && b.waitCh != nil {
-		close(b.waitCh)
-		b.waitCh = nil
-	}
-	return func(err error) {
-		b.down(addr, err)
-	}
-}
-
-func (b *balancer) Get(ctx context.Context, opts BalancerGetOptions) (addr Address, put func(), err error) {
-	var ch chan struct{}
-	b.mu.Lock()
-	if b.done {
-		b.mu.Unlock()
-		err = ErrClientConnClosing
-		return
-	}
-	seq := b.seq
-
-	defer func() {
-		if err != nil {
-			return
-		}
-		put = func() {
-			s, ok := rpcInfoFromContext(ctx)
-			if !ok {
-				return
-			}
-			b.mu.Lock()
-			defer b.mu.Unlock()
-			if b.done || seq < b.seq {
-				return
-			}
-			b.clientStats.NumCallsFinished++
-			if !s.bytesSent {
-				b.clientStats.NumCallsFinishedWithClientFailedToSend++
-			} else if s.bytesReceived {
-				b.clientStats.NumCallsFinishedKnownReceived++
-			}
-		}
-	}()
-
-	b.clientStats.NumCallsStarted++
-	if len(b.addrs) > 0 {
-		if b.next >= len(b.addrs) {
-			b.next = 0
-		}
-		next := b.next
-		for {
-			a := b.addrs[next]
-			next = (next + 1) % len(b.addrs)
-			if a.connected {
-				if !a.dropForRateLimiting && !a.dropForLoadBalancing {
-					addr = a.addr
-					b.next = next
-					b.mu.Unlock()
-					return
-				}
-				if !opts.BlockingWait {
-					b.next = next
-					if a.dropForLoadBalancing {
-						b.clientStats.NumCallsFinished++
-						b.clientStats.NumCallsFinishedWithDropForLoadBalancing++
-					} else if a.dropForRateLimiting {
-						b.clientStats.NumCallsFinished++
-						b.clientStats.NumCallsFinishedWithDropForRateLimiting++
-					}
-					b.mu.Unlock()
-					err = Errorf(codes.Unavailable, "%s drops requests", a.addr.Addr)
-					return
-				}
-			}
-			if next == b.next {
-				// Has iterated all the possible address but none is connected.
-				break
-			}
-		}
-	}
-	if !opts.BlockingWait {
-		if len(b.addrs) == 0 {
-			b.clientStats.NumCallsFinished++
-			b.clientStats.NumCallsFinishedWithClientFailedToSend++
-			b.mu.Unlock()
-			err = Errorf(codes.Unavailable, "there is no address available")
-			return
-		}
-		// Returns the next addr on b.addrs for a failfast RPC.
-		addr = b.addrs[b.next].addr
-		b.next++
-		b.mu.Unlock()
-		return
-	}
-	// Wait on b.waitCh for non-failfast RPCs.
-	if b.waitCh == nil {
-		ch = make(chan struct{})
-		b.waitCh = ch
-	} else {
-		ch = b.waitCh
-	}
-	b.mu.Unlock()
-	for {
-		select {
-		case <-ctx.Done():
-			b.mu.Lock()
-			b.clientStats.NumCallsFinished++
-			b.clientStats.NumCallsFinishedWithClientFailedToSend++
-			b.mu.Unlock()
-			err = ctx.Err()
-			return
-		case <-ch:
-			b.mu.Lock()
-			if b.done {
-				b.clientStats.NumCallsFinished++
-				b.clientStats.NumCallsFinishedWithClientFailedToSend++
-				b.mu.Unlock()
-				err = ErrClientConnClosing
-				return
-			}
-
-			if len(b.addrs) > 0 {
-				if b.next >= len(b.addrs) {
-					b.next = 0
-				}
-				next := b.next
-				for {
-					a := b.addrs[next]
-					next = (next + 1) % len(b.addrs)
-					if a.connected {
-						if !a.dropForRateLimiting && !a.dropForLoadBalancing {
-							addr = a.addr
-							b.next = next
-							b.mu.Unlock()
-							return
-						}
-						if !opts.BlockingWait {
-							b.next = next
-							if a.dropForLoadBalancing {
-								b.clientStats.NumCallsFinished++
-								b.clientStats.NumCallsFinishedWithDropForLoadBalancing++
-							} else if a.dropForRateLimiting {
-								b.clientStats.NumCallsFinished++
-								b.clientStats.NumCallsFinishedWithDropForRateLimiting++
-							}
-							b.mu.Unlock()
-							err = Errorf(codes.Unavailable, "drop requests for the addreess %s", a.addr.Addr)
-							return
-						}
-					}
-					if next == b.next {
-						// Has iterated all the possible address but none is connected.
-						break
-					}
-				}
-			}
-			// The newly added addr got removed by Down() again.
-			if b.waitCh == nil {
-				ch = make(chan struct{})
-				b.waitCh = ch
-			} else {
-				ch = b.waitCh
-			}
-			b.mu.Unlock()
-		}
-	}
-}
-
-func (b *balancer) Notify() <-chan []Address {
-	return b.addrCh
-}
-
-func (b *balancer) Close() error {
-	b.mu.Lock()
-	defer b.mu.Unlock()
-	if b.done {
-		return errBalancerClosed
-	}
-	b.done = true
-	if b.expTimer != nil {
-		b.expTimer.Stop()
-	}
-	if b.waitCh != nil {
-		close(b.waitCh)
-	}
-	if b.addrCh != nil {
-		close(b.addrCh)
-	}
-	if b.w != nil {
-		b.w.Close()
-	}
-	return nil
-}

cmd/vendor/google.golang.org/grpc/grpclb/grpc_lb_v1/grpclb.pb.go

@@ -1,629 +0,0 @@
-// Code generated by protoc-gen-go.
-// source: grpclb.proto
-// DO NOT EDIT!
-
-/*
-Package grpc_lb_v1 is a generated protocol buffer package.
-
-It is generated from these files:
-	grpclb.proto
-
-It has these top-level messages:
-	Duration
-	Timestamp
-	LoadBalanceRequest
-	InitialLoadBalanceRequest
-	ClientStats
-	LoadBalanceResponse
-	InitialLoadBalanceResponse
-	ServerList
-	Server
-*/
-package grpc_lb_v1
-
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
-
-type Duration struct {
-	// Signed seconds of the span of time. Must be from -315,576,000,000
-	// to +315,576,000,000 inclusive.
-	Seconds int64 `protobuf:"varint,1,opt,name=seconds" json:"seconds,omitempty"`
-	// Signed fractions of a second at nanosecond resolution of the span
-	// of time. Durations less than one second are represented with a 0
-	// `seconds` field and a positive or negative `nanos` field. For durations
-	// of one second or more, a non-zero value for the `nanos` field must be
-	// of the same sign as the `seconds` field. Must be from -999,999,999
-	// to +999,999,999 inclusive.
-	Nanos int32 `protobuf:"varint,2,opt,name=nanos" json:"nanos,omitempty"`
-}
-
-func (m *Duration) Reset()                    { *m = Duration{} }
-func (m *Duration) String() string            { return proto.CompactTextString(m) }
-func (*Duration) ProtoMessage()               {}
-func (*Duration) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-
-func (m *Duration) GetSeconds() int64 {
-	if m != nil {
-		return m.Seconds
-	}
-	return 0
-}
-
-func (m *Duration) GetNanos() int32 {
-	if m != nil {
-		return m.Nanos
-	}
-	return 0
-}
-
-type Timestamp struct {
-	// Represents seconds of UTC time since Unix epoch
-	// 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to
-	// 9999-12-31T23:59:59Z inclusive.
-	Seconds int64 `protobuf:"varint,1,opt,name=seconds" json:"seconds,omitempty"`
-	// Non-negative fractions of a second at nanosecond resolution. Negative
-	// second values with fractions must still have non-negative nanos values
-	// that count forward in time. Must be from 0 to 999,999,999
-	// inclusive.
-	Nanos int32 `protobuf:"varint,2,opt,name=nanos" json:"nanos,omitempty"`
-}
-
-func (m *Timestamp) Reset()                    { *m = Timestamp{} }
-func (m *Timestamp) String() string            { return proto.CompactTextString(m) }
-func (*Timestamp) ProtoMessage()               {}
-func (*Timestamp) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
-
-func (m *Timestamp) GetSeconds() int64 {
-	if m != nil {
-		return m.Seconds
-	}
-	return 0
-}
-
-func (m *Timestamp) GetNanos() int32 {
-	if m != nil {
-		return m.Nanos
-	}
-	return 0
-}
-
-type LoadBalanceRequest struct {
-	// Types that are valid to be assigned to LoadBalanceRequestType:
-	//	*LoadBalanceRequest_InitialRequest
-	//	*LoadBalanceRequest_ClientStats
-	LoadBalanceRequestType isLoadBalanceRequest_LoadBalanceRequestType `protobuf_oneof:"load_balance_request_type"`
-}
-
-func (m *LoadBalanceRequest) Reset()                    { *m = LoadBalanceRequest{} }
-func (m *LoadBalanceRequest) String() string            { return proto.CompactTextString(m) }
-func (*LoadBalanceRequest) ProtoMessage()               {}
-func (*LoadBalanceRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
-
-type isLoadBalanceRequest_LoadBalanceRequestType interface {
-	isLoadBalanceRequest_LoadBalanceRequestType()
-}
-
-type LoadBalanceRequest_InitialRequest struct {
-	InitialRequest *InitialLoadBalanceRequest `protobuf:"bytes,1,opt,name=initial_request,json=initialRequest,oneof"`
-}
-type LoadBalanceRequest_ClientStats struct {
-	ClientStats *ClientStats `protobuf:"bytes,2,opt,name=client_stats,json=clientStats,oneof"`
-}
-
-func (*LoadBalanceRequest_InitialRequest) isLoadBalanceRequest_LoadBalanceRequestType() {}
-func (*LoadBalanceRequest_ClientStats) isLoadBalanceRequest_LoadBalanceRequestType()    {}
-
-func (m *LoadBalanceRequest) GetLoadBalanceRequestType() isLoadBalanceRequest_LoadBalanceRequestType {
-	if m != nil {
-		return m.LoadBalanceRequestType
-	}
-	return nil
-}
-
-func (m *LoadBalanceRequest) GetInitialRequest() *InitialLoadBalanceRequest {
-	if x, ok := m.GetLoadBalanceRequestType().(*LoadBalanceRequest_InitialRequest); ok {
-		return x.InitialRequest
-	}
-	return nil
-}
-
-func (m *LoadBalanceRequest) GetClientStats() *ClientStats {
-	if x, ok := m.GetLoadBalanceRequestType().(*LoadBalanceRequest_ClientStats); ok {
-		return x.ClientStats
-	}
-	return nil
-}
-
-// XXX_OneofFuncs is for the internal use of the proto package.
-func (*LoadBalanceRequest) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
-	return _LoadBalanceRequest_OneofMarshaler, _LoadBalanceRequest_OneofUnmarshaler, _LoadBalanceRequest_OneofSizer, []interface{}{
-		(*LoadBalanceRequest_InitialRequest)(nil),
-		(*LoadBalanceRequest_ClientStats)(nil),
-	}
-}
-
-func _LoadBalanceRequest_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
-	m := msg.(*LoadBalanceRequest)
-	// load_balance_request_type
-	switch x := m.LoadBalanceRequestType.(type) {
-	case *LoadBalanceRequest_InitialRequest:
-		b.EncodeVarint(1<<3 | proto.WireBytes)
-		if err := b.EncodeMessage(x.InitialRequest); err != nil {
-			return err
-		}
-	case *LoadBalanceRequest_ClientStats:
-		b.EncodeVarint(2<<3 | proto.WireBytes)
-		if err := b.EncodeMessage(x.ClientStats); err != nil {
-			return err
-		}
-	case nil:
-	default:
-		return fmt.Errorf("LoadBalanceRequest.LoadBalanceRequestType has unexpected type %T", x)
-	}
-	return nil
-}
-
-func _LoadBalanceRequest_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
-	m := msg.(*LoadBalanceRequest)
-	switch tag {
-	case 1: // load_balance_request_type.initial_request
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		msg := new(InitialLoadBalanceRequest)
-		err := b.DecodeMessage(msg)
-		m.LoadBalanceRequestType = &LoadBalanceRequest_InitialRequest{msg}
-		return true, err
-	case 2: // load_balance_request_type.client_stats
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		msg := new(ClientStats)
-		err := b.DecodeMessage(msg)
-		m.LoadBalanceRequestType = &LoadBalanceRequest_ClientStats{msg}
-		return true, err
-	default:
-		return false, nil
-	}
-}
-
-func _LoadBalanceRequest_OneofSizer(msg proto.Message) (n int) {
-	m := msg.(*LoadBalanceRequest)
-	// load_balance_request_type
-	switch x := m.LoadBalanceRequestType.(type) {
-	case *LoadBalanceRequest_InitialRequest:
-		s := proto.Size(x.InitialRequest)
-		n += proto.SizeVarint(1<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(s))
-		n += s
-	case *LoadBalanceRequest_ClientStats:
-		s := proto.Size(x.ClientStats)
-		n += proto.SizeVarint(2<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(s))
-		n += s
-	case nil:
-	default:
-		panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
-	}
-	return n
-}
-
-type InitialLoadBalanceRequest struct {
-	// Name of load balanced service (IE, balancer.service.com)
-	// length should be less than 256 bytes.
-	Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-}
-
-func (m *InitialLoadBalanceRequest) Reset()                    { *m = InitialLoadBalanceRequest{} }
-func (m *InitialLoadBalanceRequest) String() string            { return proto.CompactTextString(m) }
-func (*InitialLoadBalanceRequest) ProtoMessage()               {}
-func (*InitialLoadBalanceRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
-
-func (m *InitialLoadBalanceRequest) GetName() string {
-	if m != nil {
-		return m.Name
-	}
-	return ""
-}
-
-// Contains client level statistics that are useful to load balancing. Each
-// count except the timestamp should be reset to zero after reporting the stats.
-type ClientStats struct {
-	// The timestamp of generating the report.
-	Timestamp *Timestamp `protobuf:"bytes,1,opt,name=timestamp" json:"timestamp,omitempty"`
-	// The total number of RPCs that started.
-	NumCallsStarted int64 `protobuf:"varint,2,opt,name=num_calls_started,json=numCallsStarted" json:"num_calls_started,omitempty"`
-	// The total number of RPCs that finished.
-	NumCallsFinished int64 `protobuf:"varint,3,opt,name=num_calls_finished,json=numCallsFinished" json:"num_calls_finished,omitempty"`
-	// The total number of RPCs that were dropped by the client because of rate
-	// limiting.
-	NumCallsFinishedWithDropForRateLimiting int64 `protobuf:"varint,4,opt,name=num_calls_finished_with_drop_for_rate_limiting,json=numCallsFinishedWithDropForRateLimiting" json:"num_calls_finished_with_drop_for_rate_limiting,omitempty"`
-	// The total number of RPCs that were dropped by the client because of load
-	// balancing.
-	NumCallsFinishedWithDropForLoadBalancing int64 `protobuf:"varint,5,opt,name=num_calls_finished_with_drop_for_load_balancing,json=numCallsFinishedWithDropForLoadBalancing" json:"num_calls_finished_with_drop_for_load_balancing,omitempty"`
-	// The total number of RPCs that failed to reach a server except dropped RPCs.
-	NumCallsFinishedWithClientFailedToSend int64 `protobuf:"varint,6,opt,name=num_calls_finished_with_client_failed_to_send,json=numCallsFinishedWithClientFailedToSend" json:"num_calls_finished_with_client_failed_to_send,omitempty"`
-	// The total number of RPCs that finished and are known to have been received
-	// by a server.
-	NumCallsFinishedKnownReceived int64 `protobuf:"varint,7,opt,name=num_calls_finished_known_received,json=numCallsFinishedKnownReceived" json:"num_calls_finished_known_received,omitempty"`
-}
-
-func (m *ClientStats) Reset()                    { *m = ClientStats{} }
-func (m *ClientStats) String() string            { return proto.CompactTextString(m) }
-func (*ClientStats) ProtoMessage()               {}
-func (*ClientStats) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
-
-func (m *ClientStats) GetTimestamp() *Timestamp {
-	if m != nil {
-		return m.Timestamp
-	}
-	return nil
-}
-
-func (m *ClientStats) GetNumCallsStarted() int64 {
-	if m != nil {
-		return m.NumCallsStarted
-	}
-	return 0
-}
-
-func (m *ClientStats) GetNumCallsFinished() int64 {
-	if m != nil {
-		return m.NumCallsFinished
-	}
-	return 0
-}
-
-func (m *ClientStats) GetNumCallsFinishedWithDropForRateLimiting() int64 {
-	if m != nil {
-		return m.NumCallsFinishedWithDropForRateLimiting
-	}
-	return 0
-}
-
-func (m *ClientStats) GetNumCallsFinishedWithDropForLoadBalancing() int64 {
-	if m != nil {
-		return m.NumCallsFinishedWithDropForLoadBalancing
-	}
-	return 0
-}
-
-func (m *ClientStats) GetNumCallsFinishedWithClientFailedToSend() int64 {
-	if m != nil {
-		return m.NumCallsFinishedWithClientFailedToSend
-	}
-	return 0
-}
-
-func (m *ClientStats) GetNumCallsFinishedKnownReceived() int64 {
-	if m != nil {
-		return m.NumCallsFinishedKnownReceived
-	}
-	return 0
-}
-
-type LoadBalanceResponse struct {
-	// Types that are valid to be assigned to LoadBalanceResponseType:
-	//	*LoadBalanceResponse_InitialResponse
-	//	*LoadBalanceResponse_ServerList
-	LoadBalanceResponseType isLoadBalanceResponse_LoadBalanceResponseType `protobuf_oneof:"load_balance_response_type"`
-}
-
-func (m *LoadBalanceResponse) Reset()                    { *m = LoadBalanceResponse{} }
-func (m *LoadBalanceResponse) String() string            { return proto.CompactTextString(m) }
-func (*LoadBalanceResponse) ProtoMessage()               {}
-func (*LoadBalanceResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
-
-type isLoadBalanceResponse_LoadBalanceResponseType interface {
-	isLoadBalanceResponse_LoadBalanceResponseType()
-}
-
-type LoadBalanceResponse_InitialResponse struct {
-	InitialResponse *InitialLoadBalanceResponse `protobuf:"bytes,1,opt,name=initial_response,json=initialResponse,oneof"`
-}
-type LoadBalanceResponse_ServerList struct {
-	ServerList *ServerList `protobuf:"bytes,2,opt,name=server_list,json=serverList,oneof"`
-}
-
-func (*LoadBalanceResponse_InitialResponse) isLoadBalanceResponse_LoadBalanceResponseType() {}
-func (*LoadBalanceResponse_ServerList) isLoadBalanceResponse_LoadBalanceResponseType()      {}
-
-func (m *LoadBalanceResponse) GetLoadBalanceResponseType() isLoadBalanceResponse_LoadBalanceResponseType {
-	if m != nil {
-		return m.LoadBalanceResponseType
-	}
-	return nil
-}
-
-func (m *LoadBalanceResponse) GetInitialResponse() *InitialLoadBalanceResponse {
-	if x, ok := m.GetLoadBalanceResponseType().(*LoadBalanceResponse_InitialResponse); ok {
-		return x.InitialResponse
-	}
-	return nil
-}
-
-func (m *LoadBalanceResponse) GetServerList() *ServerList {
-	if x, ok := m.GetLoadBalanceResponseType().(*LoadBalanceResponse_ServerList); ok {
-		return x.ServerList
-	}
-	return nil
-}
-
-// XXX_OneofFuncs is for the internal use of the proto package.
-func (*LoadBalanceResponse) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
-	return _LoadBalanceResponse_OneofMarshaler, _LoadBalanceResponse_OneofUnmarshaler, _LoadBalanceResponse_OneofSizer, []interface{}{
-		(*LoadBalanceResponse_InitialResponse)(nil),
-		(*LoadBalanceResponse_ServerList)(nil),
-	}
-}
-
-func _LoadBalanceResponse_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
-	m := msg.(*LoadBalanceResponse)
-	// load_balance_response_type
-	switch x := m.LoadBalanceResponseType.(type) {
-	case *LoadBalanceResponse_InitialResponse:
-		b.EncodeVarint(1<<3 | proto.WireBytes)
-		if err := b.EncodeMessage(x.InitialResponse); err != nil {
-			return err
-		}
-	case *LoadBalanceResponse_ServerList:
-		b.EncodeVarint(2<<3 | proto.WireBytes)
-		if err := b.EncodeMessage(x.ServerList); err != nil {
-			return err
-		}
-	case nil:
-	default:
-		return fmt.Errorf("LoadBalanceResponse.LoadBalanceResponseType has unexpected type %T", x)
-	}
-	return nil
-}
-
-func _LoadBalanceResponse_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
-	m := msg.(*LoadBalanceResponse)
-	switch tag {
-	case 1: // load_balance_response_type.initial_response
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		msg := new(InitialLoadBalanceResponse)
-		err := b.DecodeMessage(msg)
-		m.LoadBalanceResponseType = &LoadBalanceResponse_InitialResponse{msg}
-		return true, err
-	case 2: // load_balance_response_type.server_list
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		msg := new(ServerList)
-		err := b.DecodeMessage(msg)
-		m.LoadBalanceResponseType = &LoadBalanceResponse_ServerList{msg}
-		return true, err
-	default:
-		return false, nil
-	}
-}
-
-func _LoadBalanceResponse_OneofSizer(msg proto.Message) (n int) {
-	m := msg.(*LoadBalanceResponse)
-	// load_balance_response_type
-	switch x := m.LoadBalanceResponseType.(type) {
-	case *LoadBalanceResponse_InitialResponse:
-		s := proto.Size(x.InitialResponse)
-		n += proto.SizeVarint(1<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(s))
-		n += s
-	case *LoadBalanceResponse_ServerList:
-		s := proto.Size(x.ServerList)
-		n += proto.SizeVarint(2<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(s))
-		n += s
-	case nil:
-	default:
-		panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
-	}
-	return n
-}
-
-type InitialLoadBalanceResponse struct {
-	// This is an application layer redirect that indicates the client should use
-	// the specified server for load balancing. When this field is non-empty in
-	// the response, the client should open a separate connection to the
-	// load_balancer_delegate and call the BalanceLoad method. Its length should
-	// be less than 64 bytes.
-	LoadBalancerDelegate string `protobuf:"bytes,1,opt,name=load_balancer_delegate,json=loadBalancerDelegate" json:"load_balancer_delegate,omitempty"`
-	// This interval defines how often the client should send the client stats
-	// to the load balancer. Stats should only be reported when the duration is
-	// positive.
-	ClientStatsReportInterval *Duration `protobuf:"bytes,2,opt,name=client_stats_report_interval,json=clientStatsReportInterval" json:"client_stats_report_interval,omitempty"`
-}
-
-func (m *InitialLoadBalanceResponse) Reset()                    { *m = InitialLoadBalanceResponse{} }
-func (m *InitialLoadBalanceResponse) String() string            { return proto.CompactTextString(m) }
-func (*InitialLoadBalanceResponse) ProtoMessage()               {}
-func (*InitialLoadBalanceResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
-
-func (m *InitialLoadBalanceResponse) GetLoadBalancerDelegate() string {
-	if m != nil {
-		return m.LoadBalancerDelegate
-	}
-	return ""
-}
-
-func (m *InitialLoadBalanceResponse) GetClientStatsReportInterval() *Duration {
-	if m != nil {
-		return m.ClientStatsReportInterval
-	}
-	return nil
-}
-
-type ServerList struct {
-	// Contains a list of servers selected by the load balancer. The list will
-	// be updated when server resolutions change or as needed to balance load
-	// across more servers. The client should consume the server list in order
-	// unless instructed otherwise via the client_config.
-	Servers []*Server `protobuf:"bytes,1,rep,name=servers" json:"servers,omitempty"`
-	// Indicates the amount of time that the client should consider this server
-	// list as valid. It may be considered stale after waiting this interval of
-	// time after receiving the list. If the interval is not positive, the
-	// client can assume the list is valid until the next list is received.
-	ExpirationInterval *Duration `protobuf:"bytes,3,opt,name=expiration_interval,json=expirationInterval" json:"expiration_interval,omitempty"`
-}
-
-func (m *ServerList) Reset()                    { *m = ServerList{} }
-func (m *ServerList) String() string            { return proto.CompactTextString(m) }
-func (*ServerList) ProtoMessage()               {}
-func (*ServerList) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{7} }
-
-func (m *ServerList) GetServers() []*Server {
-	if m != nil {
-		return m.Servers
-	}
-	return nil
-}
-
-func (m *ServerList) GetExpirationInterval() *Duration {
-	if m != nil {
-		return m.ExpirationInterval
-	}
-	return nil
-}
-
-// Contains server information. When none of the [drop_for_*] fields are true,
-// use the other fields. When drop_for_rate_limiting is true, ignore all other
-// fields. Use drop_for_load_balancing only when it is true and
-// drop_for_rate_limiting is false.
-type Server struct {
-	// A resolved address for the server, serialized in network-byte-order. It may
-	// either be an IPv4 or IPv6 address.
-	IpAddress []byte `protobuf:"bytes,1,opt,name=ip_address,json=ipAddress,proto3" json:"ip_address,omitempty"`
-	// A resolved port number for the server.
-	Port int32 `protobuf:"varint,2,opt,name=port" json:"port,omitempty"`
-	// An opaque but printable token given to the frontend for each pick. All
-	// frontend requests for that pick must include the token in its initial
-	// metadata. The token is used by the backend to verify the request and to
-	// allow the backend to report load to the gRPC LB system.
-	//
-	// Its length is variable but less than 50 bytes.
-	LoadBalanceToken string `protobuf:"bytes,3,opt,name=load_balance_token,json=loadBalanceToken" json:"load_balance_token,omitempty"`
-	// Indicates whether this particular request should be dropped by the client
-	// for rate limiting.
-	DropForRateLimiting bool `protobuf:"varint,4,opt,name=drop_for_rate_limiting,json=dropForRateLimiting" json:"drop_for_rate_limiting,omitempty"`
-	// Indicates whether this particular request should be dropped by the client
-	// for load balancing.
-	DropForLoadBalancing bool `protobuf:"varint,5,opt,name=drop_for_load_balancing,json=dropForLoadBalancing" json:"drop_for_load_balancing,omitempty"`
-}
-
-func (m *Server) Reset()                    { *m = Server{} }
-func (m *Server) String() string            { return proto.CompactTextString(m) }
-func (*Server) ProtoMessage()               {}
-func (*Server) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{8} }
-
-func (m *Server) GetIpAddress() []byte {
-	if m != nil {
-		return m.IpAddress
-	}
-	return nil
-}
-
-func (m *Server) GetPort() int32 {
-	if m != nil {
-		return m.Port
-	}
-	return 0
-}
-
-func (m *Server) GetLoadBalanceToken() string {
-	if m != nil {
-		return m.LoadBalanceToken
-	}
-	return ""
-}
-
-func (m *Server) GetDropForRateLimiting() bool {
-	if m != nil {
-		return m.DropForRateLimiting
-	}
-	return false
-}
-
-func (m *Server) GetDropForLoadBalancing() bool {
-	if m != nil {
-		return m.DropForLoadBalancing
-	}
-	return false
-}
-
-func init() {
-	proto.RegisterType((*Duration)(nil), "grpc.lb.v1.Duration")
-	proto.RegisterType((*Timestamp)(nil), "grpc.lb.v1.Timestamp")
-	proto.RegisterType((*LoadBalanceRequest)(nil), "grpc.lb.v1.LoadBalanceRequest")
-	proto.RegisterType((*InitialLoadBalanceRequest)(nil), "grpc.lb.v1.InitialLoadBalanceRequest")
-	proto.RegisterType((*ClientStats)(nil), "grpc.lb.v1.ClientStats")
-	proto.RegisterType((*LoadBalanceResponse)(nil), "grpc.lb.v1.LoadBalanceResponse")
-	proto.RegisterType((*InitialLoadBalanceResponse)(nil), "grpc.lb.v1.InitialLoadBalanceResponse")
-	proto.RegisterType((*ServerList)(nil), "grpc.lb.v1.ServerList")
-	proto.RegisterType((*Server)(nil), "grpc.lb.v1.Server")
-}
-
-func init() { proto.RegisterFile("grpclb.proto", fileDescriptor0) }
-
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-	0xc8, 0xaf, 0xe4, 0xe5, 0xa7, 0x43, 0x0c, 0xaf, 0xe7, 0xdc, 0x8b, 0x5d, 0xde, 0x49, 0x92, 0x56,
-	0xfb, 0x12, 0x00, 0x64, 0xc7, 0x44, 0xbb, 0x76, 0x62, 0xd9, 0x95, 0x9d, 0x58, 0x85, 0x7a, 0xa9,
-	0x89, 0x46, 0xfb, 0x81, 0x53, 0x08, 0x7a, 0x0d, 0x2b, 0xec, 0x53, 0xcc, 0x7d, 0x95, 0x4c, 0x4a,
-	0x61, 0x8a, 0x14, 0x94, 0x25, 0x0c, 0x35, 0xfc, 0x0c, 0x60, 0xde, 0x53, 0xa3, 0x2d, 0x00, 0x1e,
-	0x13, 0x1a, 0x86, 0x8a, 0x69, 0x3f, 0x34, 0xcb, 0xb8, 0xc8, 0xe3, 0x57, 0x3e, 0x60, 0xe7, 0x87,
-	0x55, 0x9f, 0x4c, 0x4d, 0xf7, 0x6d, 0xed, 0x7c, 0xe3, 0x2e, 0x8c, 0xbc, 0x62, 0xc2, 0x69, 0x28,
-	0xe2, 0xe5, 0x5c, 0x2b, 0xcf, 0x6c, 0x1c, 0xed, 0xc3, 0xea, 0x14, 0xdb, 0x2e, 0xe2, 0x95, 0x70,
-	0x8c, 0x45, 0x9f, 0xc2, 0xda, 0x34, 0x2b, 0x2e, 0xe2, 0x4a, 0x38, 0xc6, 0x76, 0xcd, 0x0e, 0x94,
-	0x73, 0xf7, 0xaf, 0x10, 0x86, 0x52, 0xf2, 0x6d, 0xc3, 0xe8, 0xdf, 0x7c, 0x83, 0x46, 0x87, 0xe5,
-	0xc6, 0x7f, 0x13, 0xf7, 0xfd, 0x43, 0xaa, 0x07, 0x8f, 0x82, 0xce, 0xbc, 0xfb, 0x7d, 0xed, 0xff,
-	0x0a, 0x00, 0x00, 0xff, 0xff, 0x64, 0xbf, 0xda, 0x5e, 0xce, 0x06, 0x00, 0x00,
-}

cmd/vendor/google.golang.org/grpc/interceptor.go

@@ -40,17 +40,17 @@ import (
 // UnaryInvoker is called by UnaryClientInterceptor to complete RPCs.
 type UnaryInvoker func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, opts ...CallOption) error
 
-// UnaryClientInterceptor intercepts the execution of a unary RPC on the client. invoker is the handler to complete the RPC
+// UnaryClientInterceptor intercepts the execution of a unary RPC on the client. inovker is the handler to complete the RPC
 // and it is the responsibility of the interceptor to call it.
-// This is an EXPERIMENTAL API.
+// This is the EXPERIMENTAL API.
 type UnaryClientInterceptor func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, invoker UnaryInvoker, opts ...CallOption) error
 
 // Streamer is called by StreamClientInterceptor to create a ClientStream.
 type Streamer func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (ClientStream, error)
 
 // StreamClientInterceptor intercepts the creation of ClientStream. It may return a custom ClientStream to intercept all I/O
-// operations. streamer is the handler to create a ClientStream and it is the responsibility of the interceptor to call it.
-// This is an EXPERIMENTAL API.
+// operations. streamer is the handlder to create a ClientStream and it is the responsibility of the interceptor to call it.
+// This is the EXPERIMENTAL API.
 type StreamClientInterceptor func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, streamer Streamer, opts ...CallOption) (ClientStream, error)
 
 // UnaryServerInfo consists of various information about a unary RPC on

cmd/vendor/google.golang.org/grpc/keepalive/keepalive.go

@@ -39,10 +39,8 @@ import (
 )
 
 // ClientParameters is used to set keepalive parameters on the client-side.
-// These configure how the client will actively probe to notice when a connection is broken
-// and send pings so intermediaries will be aware of the liveness of the connection.
-// Make sure these parameters are set in coordination with the keepalive policy on the server,
-// as incompatible settings can result in closing of connection.
+// These configure how the client will actively probe to notice when a connection broken
+// and to cause activity so intermediaries are aware the connection is still in use.
 type ClientParameters struct {
 	// After a duration of this time if the client doesn't see any activity it pings the server to see if the transport is still alive.
 	Time time.Duration // The current default value is infinity.
@@ -50,31 +48,5 @@ type ClientParameters struct {
 	// the connection is closed.
 	Timeout time.Duration // The current default value is 20 seconds.
 	// If true, client runs keepalive checks even with no active RPCs.
-	PermitWithoutStream bool // false by default.
-}
-
-// ServerParameters is used to set keepalive and max-age parameters on the server-side.
-type ServerParameters struct {
-	// MaxConnectionIdle is a duration for the amount of time after which an idle connection would be closed by sending a GoAway.
-	// Idleness duration is defined since the most recent time the number of outstanding RPCs became zero or the connection establishment.
-	MaxConnectionIdle time.Duration // The current default value is infinity.
-	// MaxConnectionAge is a duration for the maximum amount of time a connection may exist before it will be closed by sending a GoAway.
-	// A random jitter of +/-10% will be added to MaxConnectionAge to spread out connection storms.
-	MaxConnectionAge time.Duration // The current default value is infinity.
-	// MaxConnectinoAgeGrace is an additive period after MaxConnectionAge after which the connection will be forcibly closed.
-	MaxConnectionAgeGrace time.Duration // The current default value is infinity.
-	// After a duration of this time if the server doesn't see any activity it pings the client to see if the transport is still alive.
-	Time time.Duration // The current default value is 2 hours.
-	// After having pinged for keepalive check, the server waits for a duration of Timeout and if no activity is seen even after that
-	// the connection is closed.
-	Timeout time.Duration // The current default value is 20 seconds.
-}
-
-// EnforcementPolicy is used to set keepalive enforcement policy on the server-side.
-// Server will close connection with a client that violates this policy.
-type EnforcementPolicy struct {
-	// MinTime is the minimum amount of time a client should wait before sending a keepalive ping.
-	MinTime time.Duration // The current default value is 5 minutes.
-	// If true, server expects keepalive pings even when there are no active streams(RPCs).
-	PermitWithoutStream bool // false by default.
+	PermitWithoutStream bool
 }

cmd/vendor/google.golang.org/grpc/metadata/metadata.go

@@ -36,27 +36,58 @@
 package metadata // import "google.golang.org/grpc/metadata"
 
 import (
+	"encoding/base64"
 	"fmt"
 	"strings"
 
 	"golang.org/x/net/context"
 )
 
-// DecodeKeyValue returns k, v, nil.  It is deprecated and should not be used.
+const (
+	binHdrSuffix = "-bin"
+)
+
+// encodeKeyValue encodes key and value qualified for transmission via gRPC.
+// Transmitting binary headers violates HTTP/2 spec.
+// TODO(zhaoq): Maybe check if k is ASCII also.
+func encodeKeyValue(k, v string) (string, string) {
+	k = strings.ToLower(k)
+	if strings.HasSuffix(k, binHdrSuffix) {
+		val := base64.StdEncoding.EncodeToString([]byte(v))
+		v = string(val)
+	}
+	return k, v
+}
+
+// DecodeKeyValue returns the original key and value corresponding to the
+// encoded data in k, v.
+// If k is a binary header and v contains comma, v is split on comma before decoded,
+// and the decoded v will be joined with comma before returned.
 func DecodeKeyValue(k, v string) (string, string, error) {
+	if !strings.HasSuffix(k, binHdrSuffix) {
 		return k, v, nil
+	}
+	vvs := strings.Split(v, ",")
+	for i, vv := range vvs {
+		val, err := base64.StdEncoding.DecodeString(vv)
+		if err != nil {
+			return "", "", err
+		}
+		vvs[i] = string(val)
+	}
+	return k, strings.Join(vvs, ","), nil
 }
 
 // MD is a mapping from metadata keys to values. Users should use the following
 // two convenience functions New and Pairs to generate MD.
 type MD map[string][]string
 
-// New creates an MD from a given key-value map.
-// Keys are automatically converted to lowercase.
+// New creates a MD from given key-value map.
+// Keys are automatically converted to lowercase. And for keys having "-bin" as suffix, their values will be applied Base64 encoding.
 func New(m map[string]string) MD {
 	md := MD{}
-	for k, val := range m {
-		key := strings.ToLower(k)
+	for k, v := range m {
+		key, val := encodeKeyValue(k, v)
 		md[key] = append(md[key], val)
 	}
 	return md
@@ -64,19 +95,20 @@ func New(m map[string]string) MD {
 
 // Pairs returns an MD formed by the mapping of key, value ...
 // Pairs panics if len(kv) is odd.
-// Keys are automatically converted to lowercase.
+// Keys are automatically converted to lowercase. And for keys having "-bin" as suffix, their values will be appplied Base64 encoding.
 func Pairs(kv ...string) MD {
 	if len(kv)%2 == 1 {
 		panic(fmt.Sprintf("metadata: Pairs got the odd number of input pairs for metadata: %d", len(kv)))
 	}
 	md := MD{}
-	var key string
+	var k string
 	for i, s := range kv {
 		if i%2 == 0 {
-			key = strings.ToLower(s)
+			k = s
 			continue
 		}
-		md[key] = append(md[key], s)
+		key, val := encodeKeyValue(k, s)
+		md[key] = append(md[key], val)
 	}
 	return md
 }
@@ -91,9 +123,9 @@ func (md MD) Copy() MD {
 	return Join(md)
 }
 
-// Join joins any number of mds into a single MD.
+// Join joins any number of MDs into a single MD.
 // The order of values for each key is determined by the order in which
-// the mds containing those values are presented to Join.
+// the MDs containing those values are presented to Join.
 func Join(mds ...MD) MD {
 	out := MD{}
 	for _, md := range mds {
@@ -104,41 +136,17 @@ func Join(mds ...MD) MD {
 	return out
 }
 
-type mdIncomingKey struct{}
-type mdOutgoingKey struct{}
+type mdKey struct{}
 
-// NewContext is a wrapper for NewOutgoingContext(ctx, md).  Deprecated.
+// NewContext creates a new context with md attached.
 func NewContext(ctx context.Context, md MD) context.Context {
-	return NewOutgoingContext(ctx, md)
+	return context.WithValue(ctx, mdKey{}, md)
 }
 
-// NewIncomingContext creates a new context with incoming md attached.
-func NewIncomingContext(ctx context.Context, md MD) context.Context {
-	return context.WithValue(ctx, mdIncomingKey{}, md)
-}
-
-// NewOutgoingContext creates a new context with outgoing md attached.
-func NewOutgoingContext(ctx context.Context, md MD) context.Context {
-	return context.WithValue(ctx, mdOutgoingKey{}, md)
-}
-
-// FromContext is a wrapper for FromIncomingContext(ctx).  Deprecated.
+// FromContext returns the MD in ctx if it exists.
+// The returned md should be immutable, writing to it may cause races.
+// Modification should be made to the copies of the returned md.
 func FromContext(ctx context.Context) (md MD, ok bool) {
-	return FromIncomingContext(ctx)
-}
-
-// FromIncomingContext returns the incoming metadata in ctx if it exists.  The
-// returned MD should not be modified. Writing to it may cause races.
-// Modification should be made to copies of the returned MD.
-func FromIncomingContext(ctx context.Context) (md MD, ok bool) {
-	md, ok = ctx.Value(mdIncomingKey{}).(MD)
-	return
-}
-
-// FromOutgoingContext returns the outgoing metadata in ctx if it exists.  The
-// returned MD should not be modified. Writing to it may cause races.
-// Modification should be made to the copies of the returned MD.
-func FromOutgoingContext(ctx context.Context) (md MD, ok bool) {
-	md, ok = ctx.Value(mdOutgoingKey{}).(MD)
+	md, ok = ctx.Value(mdKey{}).(MD)
 	return
 }

cmd/vendor/google.golang.org/grpc/peer/peer.go

@@ -42,8 +42,7 @@ import (
 	"google.golang.org/grpc/credentials"
 )
 
-// Peer contains the information of the peer for an RPC, such as the address
-// and authentication information.
+// Peer contains the information of the peer for an RPC.
 type Peer struct {
 	// Addr is the peer address.
 	Addr net.Addr

cmd/vendor/google.golang.org/grpc/proxy.go

@@ -1,145 +0,0 @@
-/*
- *
- * Copyright 2017, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-package grpc
-
-import (
-	"bufio"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"net/http"
-	"net/http/httputil"
-	"net/url"
-
-	"golang.org/x/net/context"
-)
-
-var (
-	// errDisabled indicates that proxy is disabled for the address.
-	errDisabled = errors.New("proxy is disabled for the address")
-	// The following variable will be overwritten in the tests.
-	httpProxyFromEnvironment = http.ProxyFromEnvironment
-)
-
-func mapAddress(ctx context.Context, address string) (string, error) {
-	req := &http.Request{
-		URL: &url.URL{
-			Scheme: "https",
-			Host:   address,
-		},
-	}
-	url, err := httpProxyFromEnvironment(req)
-	if err != nil {
-		return "", err
-	}
-	if url == nil {
-		return "", errDisabled
-	}
-	return url.Host, nil
-}
-
-// To read a response from a net.Conn, http.ReadResponse() takes a bufio.Reader.
-// It's possible that this reader reads more than what's need for the response and stores
-// those bytes in the buffer.
-// bufConn wraps the original net.Conn and the bufio.Reader to make sure we don't lose the
-// bytes in the buffer.
-type bufConn struct {
-	net.Conn
-	r io.Reader
-}
-
-func (c *bufConn) Read(b []byte) (int, error) {
-	return c.r.Read(b)
-}
-
-func doHTTPConnectHandshake(ctx context.Context, conn net.Conn, addr string) (_ net.Conn, err error) {
-	defer func() {
-		if err != nil {
-			conn.Close()
-		}
-	}()
-
-	req := (&http.Request{
-		Method: http.MethodConnect,
-		URL:    &url.URL{Host: addr},
-		Header: map[string][]string{"User-Agent": {grpcUA}},
-	})
-
-	if err := sendHTTPRequest(ctx, req, conn); err != nil {
-		return nil, fmt.Errorf("failed to write the HTTP request: %v", err)
-	}
-
-	r := bufio.NewReader(conn)
-	resp, err := http.ReadResponse(r, req)
-	if err != nil {
-		return nil, fmt.Errorf("reading server HTTP response: %v", err)
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode != http.StatusOK {
-		dump, err := httputil.DumpResponse(resp, true)
-		if err != nil {
-			return nil, fmt.Errorf("failed to do connect handshake, status code: %s", resp.Status)
-		}
-		return nil, fmt.Errorf("failed to do connect handshake, response: %q", dump)
-	}
-
-	return &bufConn{Conn: conn, r: r}, nil
-}
-
-// newProxyDialer returns a dialer that connects to proxy first if necessary.
-// The returned dialer checks if a proxy is necessary, dial to the proxy with the
-// provided dialer, does HTTP CONNECT handshake and returns the connection.
-func newProxyDialer(dialer func(context.Context, string) (net.Conn, error)) func(context.Context, string) (net.Conn, error) {
-	return func(ctx context.Context, addr string) (conn net.Conn, err error) {
-		var skipHandshake bool
-		newAddr, err := mapAddress(ctx, addr)
-		if err != nil {
-			if err != errDisabled {
-				return nil, err
-			}
-			skipHandshake = true
-			newAddr = addr
-		}
-
-		conn, err = dialer(ctx, newAddr)
-		if err != nil {
-			return
-		}
-		if !skipHandshake {
-			conn, err = doHTTPConnectHandshake(ctx, conn, addr)
-		}
-		return
-	}
-}

cmd/vendor/google.golang.org/grpc/rpc_util.go

@@ -37,22 +37,48 @@ import (
 	"bytes"
 	"compress/gzip"
 	"encoding/binary"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"math"
-	"sync"
+	"os"
 	"time"
 
+	"github.com/golang/protobuf/proto"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/peer"
 	"google.golang.org/grpc/stats"
-	"google.golang.org/grpc/status"
 	"google.golang.org/grpc/transport"
 )
 
+// Codec defines the interface gRPC uses to encode and decode messages.
+type Codec interface {
+	// Marshal returns the wire format of v.
+	Marshal(v interface{}) ([]byte, error)
+	// Unmarshal parses the wire format into v.
+	Unmarshal(data []byte, v interface{}) error
+	// String returns the name of the Codec implementation. The returned
+	// string will be used as part of content type in transmission.
+	String() string
+}
+
+// protoCodec is a Codec implementation with protobuf. It is the default codec for gRPC.
+type protoCodec struct{}
+
+func (protoCodec) Marshal(v interface{}) ([]byte, error) {
+	return proto.Marshal(v.(proto.Message))
+}
+
+func (protoCodec) Unmarshal(data []byte, v interface{}) error {
+	return proto.Unmarshal(data, v.(proto.Message))
+}
+
+func (protoCodec) String() string {
+	return "proto"
+}
+
 // Compressor defines the interface gRPC uses to compress a message.
 type Compressor interface {
 	// Do compresses p into w.
@@ -61,24 +87,16 @@ type Compressor interface {
 	Type() string
 }
 
-type gzipCompressor struct {
-	pool sync.Pool
-}
-
 // NewGZIPCompressor creates a Compressor based on GZIP.
 func NewGZIPCompressor() Compressor {
-	return &gzipCompressor{
-		pool: sync.Pool{
-			New: func() interface{} {
-				return gzip.NewWriter(ioutil.Discard)
-			},
-		},
-	}
+	return &gzipCompressor{}
+}
+
+type gzipCompressor struct {
 }
 
 func (c *gzipCompressor) Do(w io.Writer, p []byte) error {
-	z := c.pool.Get().(*gzip.Writer)
-	z.Reset(w)
+	z := gzip.NewWriter(w)
 	if _, err := z.Write(p); err != nil {
 		return err
 	}
@@ -98,7 +116,6 @@ type Decompressor interface {
 }
 
 type gzipDecompressor struct {
-	pool sync.Pool
 }
 
 // NewGZIPDecompressor creates a Decompressor based on GZIP.
@@ -107,26 +124,11 @@ func NewGZIPDecompressor() Decompressor {
 }
 
 func (d *gzipDecompressor) Do(r io.Reader) ([]byte, error) {
-	var z *gzip.Reader
-	switch maybeZ := d.pool.Get().(type) {
-	case nil:
-		newZ, err := gzip.NewReader(r)
+	z, err := gzip.NewReader(r)
 	if err != nil {
 		return nil, err
 	}
-		z = newZ
-	case *gzip.Reader:
-		z = maybeZ
-		if err := z.Reset(r); err != nil {
-			d.pool.Put(z)
-			return nil, err
-		}
-	}
-
-	defer func() {
-		z.Close()
-		d.pool.Put(z)
-	}()
+	defer z.Close()
 	return ioutil.ReadAll(z)
 }
 
@@ -141,9 +143,6 @@ type callInfo struct {
 	trailerMD metadata.MD
 	peer      *peer.Peer
 	traceInfo traceInfo // in trace.go
-	maxReceiveMessageSize *int
-	maxSendMessageSize    *int
-	creds                 credentials.PerRPCCredentials
 }
 
 var defaultCallInfo = callInfo{failFast: true}
@@ -160,14 +159,6 @@ type CallOption interface {
 	after(*callInfo)
 }
 
-// EmptyCallOption does not alter the Call configuration.
-// It can be embedded in another structure to carry satellite data for use
-// by interceptors.
-type EmptyCallOption struct{}
-
-func (EmptyCallOption) before(*callInfo) error { return nil }
-func (EmptyCallOption) after(*callInfo)        {}
-
 type beforeCall func(c *callInfo) error
 
 func (o beforeCall) before(c *callInfo) error { return o(c) }
@@ -198,9 +189,7 @@ func Trailer(md *metadata.MD) CallOption {
 // unary RPC.
 func Peer(peer *peer.Peer) CallOption {
 	return afterCall(func(c *callInfo) {
-		if c.peer != nil {
 		*peer = *c.peer
-		}
 	})
 }
 
@@ -209,8 +198,7 @@ func Peer(peer *peer.Peer) CallOption {
 // immediately. Otherwise, the RPC client will block the call until a
 // connection is available (or the call is canceled or times out) and will retry
 // the call if it fails due to a transient error. Please refer to
-// https://github.com/grpc/grpc/blob/master/doc/wait-for-ready.md.
-// Note: failFast is default to true.
+// https://github.com/grpc/grpc/blob/master/doc/fail_fast.md. Note: failFast is default to true.
 func FailFast(failFast bool) CallOption {
 	return beforeCall(func(c *callInfo) error {
 		c.failFast = failFast
@@ -218,31 +206,6 @@ func FailFast(failFast bool) CallOption {
 	})
 }
 
-// MaxCallRecvMsgSize returns a CallOption which sets the maximum message size the client can receive.
-func MaxCallRecvMsgSize(s int) CallOption {
-	return beforeCall(func(o *callInfo) error {
-		o.maxReceiveMessageSize = &s
-		return nil
-	})
-}
-
-// MaxCallSendMsgSize returns a CallOption which sets the maximum message size the client can send.
-func MaxCallSendMsgSize(s int) CallOption {
-	return beforeCall(func(o *callInfo) error {
-		o.maxSendMessageSize = &s
-		return nil
-	})
-}
-
-// PerRPCCredentials returns a CallOption that sets credentials.PerRPCCredentials
-// for a call.
-func PerRPCCredentials(creds credentials.PerRPCCredentials) CallOption {
-	return beforeCall(func(c *callInfo) error {
-		c.creds = creds
-		return nil
-	})
-}
-
 // The format of the payload: compressed or not?
 type payloadFormat uint8
 
@@ -276,8 +239,8 @@ type parser struct {
 // No other error values or types must be returned, which also means
 // that the underlying io.Reader must not return an incompatible
 // error.
-func (p *parser) recvMsg(maxReceiveMessageSize int) (pf payloadFormat, msg []byte, err error) {
-	if _, err := p.r.Read(p.header[:]); err != nil {
+func (p *parser) recvMsg(maxMsgSize int) (pf payloadFormat, msg []byte, err error) {
+	if _, err := io.ReadFull(p.r, p.header[:]); err != nil {
 		return 0, nil, err
 	}
 
@@ -287,13 +250,13 @@ func (p *parser) recvMsg(maxReceiveMessageSize int) (pf payloadFormat, msg []byt
 	if length == 0 {
 		return pf, nil, nil
 	}
-	if length > uint32(maxReceiveMessageSize) {
-		return 0, nil, Errorf(codes.ResourceExhausted, "grpc: received message larger than max (%d vs. %d)", length, maxReceiveMessageSize)
+	if length > uint32(maxMsgSize) {
+		return 0, nil, Errorf(codes.Internal, "grpc: received message length %d exceeding the max size %d", length, maxMsgSize)
 	}
 	// TODO(bradfitz,zhaoq): garbage. reuse buffer after proto decoding instead
 	// of making it for each message:
 	msg = make([]byte, int(length))
-	if _, err := p.r.Read(msg); err != nil {
+	if _, err := io.ReadFull(p.r, msg); err != nil {
 		if err == io.EOF {
 			err = io.ErrUnexpectedEOF
 		}
@@ -314,7 +277,7 @@ func encode(c Codec, msg interface{}, cp Compressor, cbuf *bytes.Buffer, outPayl
 		// TODO(zhaoq): optimize to reduce memory alloc and copying.
 		b, err = c.Marshal(msg)
 		if err != nil {
-			return nil, Errorf(codes.Internal, "grpc: error while marshaling: %v", err.Error())
+			return nil, err
 		}
 		if outPayload != nil {
 			outPayload.Payload = msg
@@ -324,14 +287,14 @@ func encode(c Codec, msg interface{}, cp Compressor, cbuf *bytes.Buffer, outPayl
 		}
 		if cp != nil {
 			if err := cp.Do(cbuf, b); err != nil {
-				return nil, Errorf(codes.Internal, "grpc: error while compressing: %v", err.Error())
+				return nil, err
 			}
 			b = cbuf.Bytes()
 		}
 		length = uint(len(b))
 	}
 	if length > math.MaxUint32 {
-		return nil, Errorf(codes.ResourceExhausted, "grpc: message too large (%d bytes)", length)
+		return nil, Errorf(codes.InvalidArgument, "grpc: message too large (%d bytes)", length)
 	}
 
 	const (
@@ -372,8 +335,8 @@ func checkRecvPayload(pf payloadFormat, recvCompress string, dc Decompressor) er
 	return nil
 }
 
-func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{}, maxReceiveMessageSize int, inPayload *stats.InPayload) error {
-	pf, d, err := p.recvMsg(maxReceiveMessageSize)
+func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{}, maxMsgSize int, inPayload *stats.InPayload) error {
+	pf, d, err := p.recvMsg(maxMsgSize)
 	if err != nil {
 		return err
 	}
@@ -389,10 +352,10 @@ func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{
 			return Errorf(codes.Internal, "grpc: failed to decompress the received message %v", err)
 		}
 	}
-	if len(d) > maxReceiveMessageSize {
+	if len(d) > maxMsgSize {
 		// TODO: Revisit the error code. Currently keep it consistent with java
 		// implementation.
-		return Errorf(codes.ResourceExhausted, "grpc: received message larger than max (%d vs. %d)", len(d), maxReceiveMessageSize)
+		return Errorf(codes.Internal, "grpc: received a message of %d bytes exceeding %d limit", len(d), maxMsgSize)
 	}
 	if err := c.Unmarshal(d, m); err != nil {
 		return Errorf(codes.Internal, "grpc: failed to unmarshal the received message %v", err)
@@ -407,57 +370,116 @@ func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{
 	return nil
 }
 
-type rpcInfo struct {
-	bytesSent     bool
-	bytesReceived bool
+// rpcError defines the status from an RPC.
+type rpcError struct {
+	code codes.Code
+	desc string
 }
 
-type rpcInfoContextKey struct{}
-
-func newContextWithRPCInfo(ctx context.Context) context.Context {
-	return context.WithValue(ctx, rpcInfoContextKey{}, &rpcInfo{})
-}
-
-func rpcInfoFromContext(ctx context.Context) (s *rpcInfo, ok bool) {
-	s, ok = ctx.Value(rpcInfoContextKey{}).(*rpcInfo)
-	return
-}
-
-func updateRPCInfoInContext(ctx context.Context, s rpcInfo) {
-	if ss, ok := rpcInfoFromContext(ctx); ok {
-		*ss = s
-	}
-	return
+func (e *rpcError) Error() string {
+	return fmt.Sprintf("rpc error: code = %s desc = %s", e.code, e.desc)
 }
 
 // Code returns the error code for err if it was produced by the rpc system.
 // Otherwise, it returns codes.Unknown.
-//
-// Deprecated; use status.FromError and Code method instead.
 func Code(err error) codes.Code {
-	if s, ok := status.FromError(err); ok {
-		return s.Code()
+	if err == nil {
+		return codes.OK
+	}
+	if e, ok := err.(*rpcError); ok {
+		return e.code
 	}
 	return codes.Unknown
 }
 
 // ErrorDesc returns the error description of err if it was produced by the rpc system.
 // Otherwise, it returns err.Error() or empty string when err is nil.
-//
-// Deprecated; use status.FromError and Message method instead.
 func ErrorDesc(err error) string {
-	if s, ok := status.FromError(err); ok {
-		return s.Message()
+	if err == nil {
+		return ""
+	}
+	if e, ok := err.(*rpcError); ok {
+		return e.desc
 	}
 	return err.Error()
 }
 
 // Errorf returns an error containing an error code and a description;
 // Errorf returns nil if c is OK.
-//
-// Deprecated; use status.Errorf instead.
 func Errorf(c codes.Code, format string, a ...interface{}) error {
-	return status.Errorf(c, format, a...)
+	if c == codes.OK {
+		return nil
+	}
+	return &rpcError{
+		code: c,
+		desc: fmt.Sprintf(format, a...),
+	}
+}
+
+// toRPCErr converts an error into a rpcError.
+func toRPCErr(err error) error {
+	switch e := err.(type) {
+	case *rpcError:
+		return err
+	case transport.StreamError:
+		return &rpcError{
+			code: e.Code,
+			desc: e.Desc,
+		}
+	case transport.ConnectionError:
+		return &rpcError{
+			code: codes.Internal,
+			desc: e.Desc,
+		}
+	default:
+		switch err {
+		case context.DeadlineExceeded:
+			return &rpcError{
+				code: codes.DeadlineExceeded,
+				desc: err.Error(),
+			}
+		case context.Canceled:
+			return &rpcError{
+				code: codes.Canceled,
+				desc: err.Error(),
+			}
+		case ErrClientConnClosing:
+			return &rpcError{
+				code: codes.FailedPrecondition,
+				desc: err.Error(),
+			}
+		}
+
+	}
+	return Errorf(codes.Unknown, "%v", err)
+}
+
+// convertCode converts a standard Go error into its canonical code. Note that
+// this is only used to translate the error returned by the server applications.
+func convertCode(err error) codes.Code {
+	switch err {
+	case nil:
+		return codes.OK
+	case io.EOF:
+		return codes.OutOfRange
+	case io.ErrClosedPipe, io.ErrNoProgress, io.ErrShortBuffer, io.ErrShortWrite, io.ErrUnexpectedEOF:
+		return codes.FailedPrecondition
+	case os.ErrInvalid:
+		return codes.InvalidArgument
+	case context.Canceled:
+		return codes.Canceled
+	case context.DeadlineExceeded:
+		return codes.DeadlineExceeded
+	}
+	switch {
+	case os.IsExist(err):
+		return codes.AlreadyExists
+	case os.IsNotExist(err):
+		return codes.NotFound
+	case os.IsPermission(err):
+		return codes.PermissionDenied
+	}
+	return codes.Unknown
 }
 
 // MethodConfig defines the configuration recommended by the service providers for a
@@ -467,22 +489,24 @@ type MethodConfig struct {
 	// WaitForReady indicates whether RPCs sent to this method should wait until
 	// the connection is ready by default (!failfast). The value specified via the
 	// gRPC client API will override the value set here.
-	WaitForReady *bool
+	WaitForReady bool
 	// Timeout is the default timeout for RPCs sent to this method. The actual
 	// deadline used will be the minimum of the value specified here and the value
 	// set by the application via the gRPC client API.  If either one is not set,
 	// then the other will be used.  If neither is set, then the RPC has no deadline.
-	Timeout *time.Duration
+	Timeout time.Duration
 	// MaxReqSize is the maximum allowed payload size for an individual request in a
 	// stream (client->server) in bytes. The size which is measured is the serialized
 	// payload after per-message compression (but before stream compression) in bytes.
 	// The actual value used is the minumum of the value specified here and the value set
 	// by the application via the gRPC client API. If either one is not set, then the other
 	// will be used.  If neither is set, then the built-in default is used.
-	MaxReqSize *int
+	// TODO: support this.
+	MaxReqSize uint32
 	// MaxRespSize is the maximum allowed payload size for an individual response in a
 	// stream (server->client) in bytes.
-	MaxRespSize *int
+	// TODO: support this.
+	MaxRespSize uint32
 }
 
 // ServiceConfig is provided by the service provider and contains parameters for how
@@ -493,32 +517,9 @@ type ServiceConfig struct {
 	// via grpc.WithBalancer will override this.
 	LB Balancer
 	// Methods contains a map for the methods in this service.
-	// If there is an exact match for a method (i.e. /service/method) in the map, use the corresponding MethodConfig.
-	// If there's no exact match, look for the default config for the service (/service/) and use the corresponding MethodConfig if it exists.
-	// Otherwise, the method has no MethodConfig to use.
 	Methods map[string]MethodConfig
 }
 
-func min(a, b *int) *int {
-	if *a < *b {
-		return a
-	}
-	return b
-}
-
-func getMaxSize(mcMax, doptMax *int, defaultVal int) *int {
-	if mcMax == nil && doptMax == nil {
-		return &defaultVal
-	}
-	if mcMax != nil && doptMax != nil {
-		return min(mcMax, doptMax)
-	}
-	if mcMax != nil {
-		return mcMax
-	}
-	return doptMax
-}
-
 // SupportPackageIsVersion4 is referenced from generated protocol buffer files
 // to assert that that code is compatible with this version of the grpc package.
 //
@@ -528,6 +529,4 @@ func getMaxSize(mcMax, doptMax *int, defaultVal int) *int {
 const SupportPackageIsVersion4 = true
 
 // Version is the current grpc version.
-const Version = "1.4.1"
-
-const grpcUA = "grpc-go/" + Version
+const Version = "1.2.1"

cmd/vendor/google.golang.org/grpc/server.go

@@ -53,19 +53,12 @@ import (
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/grpclog"
 	"google.golang.org/grpc/internal"
-	"google.golang.org/grpc/keepalive"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/stats"
-	"google.golang.org/grpc/status"
 	"google.golang.org/grpc/tap"
 	"google.golang.org/grpc/transport"
 )
 
-const (
-	defaultServerMaxReceiveMessageSize = 1024 * 1024 * 4
-	defaultServerMaxSendMessageSize    = 1024 * 1024 * 4
-)
-
 type methodHandler func(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor UnaryServerInterceptor) (interface{}, error)
 
 // MethodDesc represents an RPC service's method specification.
@@ -116,59 +109,21 @@ type options struct {
 	codec                Codec
 	cp                   Compressor
 	dc                   Decompressor
+	maxMsgSize           int
 	unaryInt             UnaryServerInterceptor
 	streamInt            StreamServerInterceptor
 	inTapHandle          tap.ServerInHandle
 	statsHandler         stats.Handler
 	maxConcurrentStreams uint32
-	maxReceiveMessageSize int
-	maxSendMessageSize    int
 	useHandlerImpl       bool // use http.Handler-based server
 	unknownStreamDesc    *StreamDesc
-	keepaliveParams       keepalive.ServerParameters
-	keepalivePolicy       keepalive.EnforcementPolicy
-	initialWindowSize     int32
-	initialConnWindowSize int32
 }
 
-var defaultServerOptions = options{
-	maxReceiveMessageSize: defaultServerMaxReceiveMessageSize,
-	maxSendMessageSize:    defaultServerMaxSendMessageSize,
-}
+var defaultMaxMsgSize = 1024 * 1024 * 4 // use 4MB as the default message size limit
 
-// A ServerOption sets options such as credentials, codec and keepalive parameters, etc.
+// A ServerOption sets options.
 type ServerOption func(*options)
 
-// InitialWindowSize returns a ServerOption that sets window size for stream.
-// The lower bound for window size is 64K and any value smaller than that will be ignored.
-func InitialWindowSize(s int32) ServerOption {
-	return func(o *options) {
-		o.initialWindowSize = s
-	}
-}
-
-// InitialConnWindowSize returns a ServerOption that sets window size for a connection.
-// The lower bound for window size is 64K and any value smaller than that will be ignored.
-func InitialConnWindowSize(s int32) ServerOption {
-	return func(o *options) {
-		o.initialConnWindowSize = s
-	}
-}
-
-// KeepaliveParams returns a ServerOption that sets keepalive and max-age parameters for the server.
-func KeepaliveParams(kp keepalive.ServerParameters) ServerOption {
-	return func(o *options) {
-		o.keepaliveParams = kp
-	}
-}
-
-// KeepaliveEnforcementPolicy returns a ServerOption that sets keepalive enforcement policy for the server.
-func KeepaliveEnforcementPolicy(kep keepalive.EnforcementPolicy) ServerOption {
-	return func(o *options) {
-		o.keepalivePolicy = kep
-	}
-}
-
 // CustomCodec returns a ServerOption that sets a codec for message marshaling and unmarshaling.
 func CustomCodec(codec Codec) ServerOption {
 	return func(o *options) {
@@ -190,25 +145,11 @@ func RPCDecompressor(dc Decompressor) ServerOption {
 	}
 }
 
-// MaxMsgSize returns a ServerOption to set the max message size in bytes the server can receive.
-// If this is not set, gRPC uses the default limit. Deprecated: use MaxRecvMsgSize instead.
+// MaxMsgSize returns a ServerOption to set the max message size in bytes for inbound mesages.
+// If this is not set, gRPC uses the default 4MB.
 func MaxMsgSize(m int) ServerOption {
-	return MaxRecvMsgSize(m)
-}
-
-// MaxRecvMsgSize returns a ServerOption to set the max message size in bytes the server can receive.
-// If this is not set, gRPC uses the default 4MB.
-func MaxRecvMsgSize(m int) ServerOption {
 	return func(o *options) {
-		o.maxReceiveMessageSize = m
-	}
-}
-
-// MaxSendMsgSize returns a ServerOption to set the max message size in bytes the server can send.
-// If this is not set, gRPC uses the default 4MB.
-func MaxSendMsgSize(m int) ServerOption {
-	return func(o *options) {
-		o.maxSendMessageSize = m
+		o.maxMsgSize = m
 	}
 }
 
@@ -233,7 +174,7 @@ func Creds(c credentials.TransportCredentials) ServerOption {
 func UnaryInterceptor(i UnaryServerInterceptor) ServerOption {
 	return func(o *options) {
 		if o.unaryInt != nil {
-			panic("The unary server interceptor was already set and may not be reset.")
+			panic("The unary server interceptor has been set.")
 		}
 		o.unaryInt = i
 	}
@@ -244,7 +185,7 @@ func UnaryInterceptor(i UnaryServerInterceptor) ServerOption {
 func StreamInterceptor(i StreamServerInterceptor) ServerOption {
 	return func(o *options) {
 		if o.streamInt != nil {
-			panic("The stream server interceptor was already set and may not be reset.")
+			panic("The stream server interceptor has been set.")
 		}
 		o.streamInt = i
 	}
@@ -255,7 +196,7 @@ func StreamInterceptor(i StreamServerInterceptor) ServerOption {
 func InTapHandle(h tap.ServerInHandle) ServerOption {
 	return func(o *options) {
 		if o.inTapHandle != nil {
-			panic("The tap handle was already set and may not be reset.")
+			panic("The tap handle has been set.")
 		}
 		o.inTapHandle = h
 	}
@@ -270,7 +211,7 @@ func StatsHandler(h stats.Handler) ServerOption {
 
 // UnknownServiceHandler returns a ServerOption that allows for adding a custom
 // unknown service handler. The provided method is a bidi-streaming RPC service
-// handler that will be invoked instead of returning the "unimplemented" gRPC
+// handler that will be invoked instead of returning the the "unimplemented" gRPC
 // error whenever a request is received for an unregistered service or method.
 // The handling function has full access to the Context of the request and the
 // stream, and the invocation passes through interceptors.
@@ -289,7 +230,8 @@ func UnknownServiceHandler(streamHandler StreamHandler) ServerOption {
 // NewServer creates a gRPC server which has no service registered and has not
 // started to accept requests yet.
 func NewServer(opt ...ServerOption) *Server {
-	opts := defaultServerOptions
+	var opts options
+	opts.maxMsgSize = defaultMaxMsgSize
 	for _, o := range opt {
 		o(&opts)
 	}
@@ -328,8 +270,8 @@ func (s *Server) errorf(format string, a ...interface{}) {
 	}
 }
 
-// RegisterService registers a service and its implementation to the gRPC
-// server. It is called from the IDL generated code. This must be called before
+// RegisterService register a service and its implementation to the gRPC
+// server. Called from the IDL generated code. This must be called before
 // invoking Serve.
 func (s *Server) RegisterService(sd *ServiceDesc, ss interface{}) {
 	ht := reflect.TypeOf(sd.HandlerType).Elem()
@@ -374,7 +316,7 @@ type MethodInfo struct {
 	IsServerStream bool
 }
 
-// ServiceInfo contains unary RPC method info, streaming RPC method info and metadata for a service.
+// ServiceInfo contains unary RPC method info, streaming RPC methid info and metadata for a service.
 type ServiceInfo struct {
 	Methods []MethodInfo
 	// Metadata is the metadata specified in ServiceDesc when registering service.
@@ -467,12 +409,10 @@ func (s *Server) Serve(lis net.Listener) error {
 				s.mu.Lock()
 				s.printf("Accept error: %v; retrying in %v", err, tempDelay)
 				s.mu.Unlock()
-				timer := time.NewTimer(tempDelay)
 				select {
-				case <-timer.C:
+				case <-time.After(tempDelay):
 				case <-s.ctx.Done():
 				}
-				timer.Stop()
 				continue
 			}
 			s.mu.Lock()
@@ -529,10 +469,6 @@ func (s *Server) serveHTTP2Transport(c net.Conn, authInfo credentials.AuthInfo)
 		AuthInfo:     authInfo,
 		InTapHandle:  s.opts.inTapHandle,
 		StatsHandler: s.opts.statsHandler,
-		KeepaliveParams:       s.opts.keepaliveParams,
-		KeepalivePolicy:       s.opts.keepalivePolicy,
-		InitialWindowSize:     s.opts.initialWindowSize,
-		InitialConnWindowSize: s.opts.initialConnWindowSize,
 	}
 	st, err := transport.NewServerTransport("http2", c, config)
 	if err != nil {
@@ -664,11 +600,14 @@ func (s *Server) sendResponse(t transport.ServerTransport, stream *transport.Str
 	}
 	p, err := encode(s.opts.codec, msg, cp, cbuf, outPayload)
 	if err != nil {
-		grpclog.Println("grpc: server failed to encode response: ", err)
-		return err
-	}
-	if len(p) > s.opts.maxSendMessageSize {
-		return status.Errorf(codes.ResourceExhausted, "grpc: trying to send message larger than max (%d vs. %d)", len(p), s.opts.maxSendMessageSize)
+		// This typically indicates a fatal issue (e.g., memory
+		// corruption or hardware faults) the application program
+		// cannot handle.
+		//
+		// TODO(zhaoq): There exist other options also such as only closing the
+		// faulty stream locally and remotely (Other streams can keep going). Find
+		// the optimal option.
+		grpclog.Fatalf("grpc: Server failed to encode response %v", err)
 	}
 	err = t.Write(stream, p, opts)
 	if err == nil && outPayload != nil {
@@ -685,7 +624,9 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 			BeginTime: time.Now(),
 		}
 		sh.HandleRPC(stream.Context(), begin)
+	}
 	defer func() {
+		if sh != nil {
 			end := &stats.End{
 				EndTime: time.Now(),
 			}
@@ -693,8 +634,8 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 				end.Error = toRPCErr(err)
 			}
 			sh.HandleRPC(stream.Context(), end)
-		}()
 		}
+	}()
 	if trInfo != nil {
 		defer trInfo.tr.Finish()
 		trInfo.firstLine.client = false
@@ -711,7 +652,8 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 		stream.SetSendCompress(s.opts.cp.Type())
 	}
 	p := &parser{r: stream}
-	pf, req, err := p.recvMsg(s.opts.maxReceiveMessageSize)
+	for {
+		pf, req, err := p.recvMsg(s.opts.maxMsgSize)
 		if err == io.EOF {
 			// The entire stream is done (for unary RPC only).
 			return err
@@ -720,44 +662,45 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 			err = Errorf(codes.Internal, io.ErrUnexpectedEOF.Error())
 		}
 		if err != nil {
-		if st, ok := status.FromError(err); ok {
-			if e := t.WriteStatus(stream, st); e != nil {
+			switch err := err.(type) {
+			case *rpcError:
+				if e := t.WriteStatus(stream, err.code, err.desc); e != nil {
 					grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
 				}
-		} else {
-			switch st := err.(type) {
 			case transport.ConnectionError:
 				// Nothing to do here.
 			case transport.StreamError:
-				if e := t.WriteStatus(stream, status.New(st.Code, st.Desc)); e != nil {
+				if e := t.WriteStatus(stream, err.Code, err.Desc); e != nil {
 					grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
 				}
 			default:
-				panic(fmt.Sprintf("grpc: Unexpected error (%T) from recvMsg: %v", st, st))
-			}
+				panic(fmt.Sprintf("grpc: Unexpected error (%T) from recvMsg: %v", err, err))
 			}
 			return err
 		}
 
 		if err := checkRecvPayload(pf, stream.RecvCompress(), s.opts.dc); err != nil {
-		if st, ok := status.FromError(err); ok {
-			if e := t.WriteStatus(stream, st); e != nil {
+			switch err := err.(type) {
+			case *rpcError:
+				if e := t.WriteStatus(stream, err.code, err.desc); e != nil {
 					grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
 				}
 				return err
-		}
-		if e := t.WriteStatus(stream, status.New(codes.Internal, err.Error())); e != nil {
+			default:
+				if e := t.WriteStatus(stream, codes.Internal, err.Error()); e != nil {
 					grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
 				}
-
 				// TODO checkRecvPayload always return RPC error. Add a return here if necessary.
 			}
+		}
 		var inPayload *stats.InPayload
 		if sh != nil {
 			inPayload = &stats.InPayload{
 				RecvTime: time.Now(),
 			}
 		}
+		statusCode := codes.OK
+		statusDesc := ""
 		df := func(v interface{}) error {
 			if inPayload != nil {
 				inPayload.WireLength = len(req)
@@ -766,16 +709,20 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 				var err error
 				req, err = s.opts.dc.Do(bytes.NewReader(req))
 				if err != nil {
+					if err := t.WriteStatus(stream, codes.Internal, err.Error()); err != nil {
+						grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
+					}
 					return Errorf(codes.Internal, err.Error())
 				}
 			}
-		if len(req) > s.opts.maxReceiveMessageSize {
+			if len(req) > s.opts.maxMsgSize {
 				// TODO: Revisit the error code. Currently keep it consistent with
 				// java implementation.
-			return status.Errorf(codes.ResourceExhausted, "grpc: received message larger than max (%d vs. %d)", len(req), s.opts.maxReceiveMessageSize)
+				statusCode = codes.Internal
+				statusDesc = fmt.Sprintf("grpc: server received a message of %d bytes exceeding %d limit", len(req), s.opts.maxMsgSize)
 			}
 			if err := s.opts.codec.Unmarshal(req, v); err != nil {
-			return status.Errorf(codes.Internal, "grpc: error unmarshalling request: %v", err)
+				return err
 			}
 			if inPayload != nil {
 				inPayload.Payload = v
@@ -790,20 +737,21 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 		}
 		reply, appErr := md.Handler(srv.server, stream.Context(), df, s.opts.unaryInt)
 		if appErr != nil {
-		appStatus, ok := status.FromError(appErr)
-		if !ok {
-			// Convert appErr if it is not a grpc status error.
-			appErr = status.Error(convertCode(appErr), appErr.Error())
-			appStatus, _ = status.FromError(appErr)
+			if err, ok := appErr.(*rpcError); ok {
+				statusCode = err.code
+				statusDesc = err.desc
+			} else {
+				statusCode = convertCode(appErr)
+				statusDesc = appErr.Error()
 			}
-		if trInfo != nil {
-			trInfo.tr.LazyLog(stringer(appStatus.Message()), true)
+			if trInfo != nil && statusCode != codes.OK {
+				trInfo.tr.LazyLog(stringer(statusDesc), true)
 				trInfo.tr.SetError()
 			}
-		if e := t.WriteStatus(stream, appStatus); e != nil {
-			grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", e)
+			if err := t.WriteStatus(stream, statusCode, statusDesc); err != nil {
+				grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", err)
 			}
-		return appErr
+			return Errorf(statusCode, statusDesc)
 		}
 		if trInfo != nil {
 			trInfo.tr.LazyLog(stringer("OK"), false)
@@ -813,35 +761,27 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 			Delay: false,
 		}
 		if err := s.sendResponse(t, stream, reply, s.opts.cp, opts); err != nil {
-		if err == io.EOF {
-			// The entire stream is done (for unary RPC only).
-			return err
-		}
-		if s, ok := status.FromError(err); ok {
-			if e := t.WriteStatus(stream, s); e != nil {
-				grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", e)
-			}
-		} else {
-			switch st := err.(type) {
+			switch err := err.(type) {
 			case transport.ConnectionError:
 				// Nothing to do here.
 			case transport.StreamError:
-				if e := t.WriteStatus(stream, status.New(st.Code, st.Desc)); e != nil {
-					grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", e)
-				}
+				statusCode = err.Code
+				statusDesc = err.Desc
 			default:
-				panic(fmt.Sprintf("grpc: Unexpected error (%T) from sendResponse: %v", st, st))
-			}
+				statusCode = codes.Unknown
+				statusDesc = err.Error()
 			}
 			return err
 		}
 		if trInfo != nil {
 			trInfo.tr.LazyLog(&payload{sent: true, msg: reply}, true)
 		}
-	// TODO: Should we be logging if writing status failed here, like above?
-	// Should the logging be in WriteStatus?  Should we ignore the WriteStatus
-	// error or allow the stats handler to see it?
-	return t.WriteStatus(stream, status.New(codes.OK, ""))
+		errWrite := t.WriteStatus(stream, statusCode, statusDesc)
+		if statusCode != codes.OK {
+			return Errorf(statusCode, statusDesc)
+		}
+		return errWrite
+	}
 }
 
 func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transport.Stream, srv *service, sd *StreamDesc, trInfo *traceInfo) (err error) {
@@ -851,7 +791,9 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
 			BeginTime: time.Now(),
 		}
 		sh.HandleRPC(stream.Context(), begin)
+	}
 	defer func() {
+		if sh != nil {
 			end := &stats.End{
 				EndTime: time.Now(),
 			}
@@ -859,8 +801,8 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
 				end.Error = toRPCErr(err)
 			}
 			sh.HandleRPC(stream.Context(), end)
-		}()
 		}
+	}()
 	if s.opts.cp != nil {
 		stream.SetSendCompress(s.opts.cp.Type())
 	}
@@ -871,8 +813,7 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
 		codec:        s.opts.codec,
 		cp:           s.opts.cp,
 		dc:           s.opts.dc,
-		maxReceiveMessageSize: s.opts.maxReceiveMessageSize,
-		maxSendMessageSize:    s.opts.maxSendMessageSize,
+		maxMsgSize:   s.opts.maxMsgSize,
 		trInfo:       trInfo,
 		statsHandler: sh,
 	}
@@ -908,32 +849,32 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
 		appErr = s.opts.streamInt(server, ss, info, sd.Handler)
 	}
 	if appErr != nil {
-		appStatus, ok := status.FromError(appErr)
-		if !ok {
-			switch err := appErr.(type) {
-			case transport.StreamError:
-				appStatus = status.New(err.Code, err.Desc)
-			default:
-				appStatus = status.New(convertCode(appErr), appErr.Error())
+		if err, ok := appErr.(*rpcError); ok {
+			ss.statusCode = err.code
+			ss.statusDesc = err.desc
+		} else if err, ok := appErr.(transport.StreamError); ok {
+			ss.statusCode = err.Code
+			ss.statusDesc = err.Desc
+		} else {
+			ss.statusCode = convertCode(appErr)
+			ss.statusDesc = appErr.Error()
 		}
-			appErr = appStatus.Err()
 	}
 	if trInfo != nil {
 		ss.mu.Lock()
-			ss.trInfo.tr.LazyLog(stringer(appStatus.Message()), true)
+		if ss.statusCode != codes.OK {
+			ss.trInfo.tr.LazyLog(stringer(ss.statusDesc), true)
 			ss.trInfo.tr.SetError()
-			ss.mu.Unlock()
-		}
-		t.WriteStatus(ss.s, appStatus)
-		// TODO: Should we log an error from WriteStatus here and below?
-		return appErr
-	}
-	if trInfo != nil {
-		ss.mu.Lock()
+		} else {
 			ss.trInfo.tr.LazyLog(stringer("OK"), false)
+		}
 		ss.mu.Unlock()
 	}
-	return t.WriteStatus(ss.s, status.New(codes.OK, ""))
+	errWrite := t.WriteStatus(ss.s, ss.statusCode, ss.statusDesc)
+	if ss.statusCode != codes.OK {
+		return Errorf(ss.statusCode, ss.statusDesc)
+	}
+	return errWrite
 
 }
 
@@ -949,7 +890,7 @@ func (s *Server) handleStream(t transport.ServerTransport, stream *transport.Str
 			trInfo.tr.SetError()
 		}
 		errDesc := fmt.Sprintf("malformed method name: %q", stream.Method())
-		if err := t.WriteStatus(stream, status.New(codes.ResourceExhausted, errDesc)); err != nil {
+		if err := t.WriteStatus(stream, codes.InvalidArgument, errDesc); err != nil {
 			if trInfo != nil {
 				trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
 				trInfo.tr.SetError()
@@ -974,7 +915,7 @@ func (s *Server) handleStream(t transport.ServerTransport, stream *transport.Str
 			trInfo.tr.SetError()
 		}
 		errDesc := fmt.Sprintf("unknown service %v", service)
-		if err := t.WriteStatus(stream, status.New(codes.Unimplemented, errDesc)); err != nil {
+		if err := t.WriteStatus(stream, codes.Unimplemented, errDesc); err != nil {
 			if trInfo != nil {
 				trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
 				trInfo.tr.SetError()
@@ -1004,7 +945,7 @@ func (s *Server) handleStream(t transport.ServerTransport, stream *transport.Str
 		return
 	}
 	errDesc := fmt.Sprintf("unknown method %v", method)
-	if err := t.WriteStatus(stream, status.New(codes.Unimplemented, errDesc)); err != nil {
+	if err := t.WriteStatus(stream, codes.Unimplemented, errDesc); err != nil {
 		if trInfo != nil {
 			trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
 			trInfo.tr.SetError()
@@ -1047,9 +988,8 @@ func (s *Server) Stop() {
 	s.mu.Unlock()
 }
 
-// GracefulStop stops the gRPC server gracefully. It stops the server from
-// accepting new connections and RPCs and blocks until all the pending RPCs are
-// finished.
+// GracefulStop stops the gRPC server gracefully. It stops the server to accept new
+// connections and RPCs and blocks until all the pending RPCs are finished.
 func (s *Server) GracefulStop() {
 	s.mu.Lock()
 	defer s.mu.Unlock()

cmd/vendor/google.golang.org/grpc/stats/handlers.go

@@ -45,22 +45,19 @@ type ConnTagInfo struct {
 	RemoteAddr net.Addr
 	// LocalAddr is the local address of the corresponding connection.
 	LocalAddr net.Addr
+	// TODO add QOS related fields.
 }
 
 // RPCTagInfo defines the relevant information needed by RPC context tagger.
 type RPCTagInfo struct {
 	// FullMethodName is the RPC method in the format of /package.service/method.
 	FullMethodName string
-	// FailFast indicates if this RPC is failfast.
-	// This field is only valid on client side, it's always false on server side.
-	FailFast bool
 }
 
 // Handler defines the interface for the related stats handling (e.g., RPCs, connections).
 type Handler interface {
 	// TagRPC can attach some information to the given context.
-	// The context used for the rest lifetime of the RPC will be derived from
-	// the returned context.
+	// The returned context is used in the rest lifetime of the RPC.
 	TagRPC(context.Context, *RPCTagInfo) context.Context
 	// HandleRPC processes the RPC stats.
 	HandleRPC(context.Context, RPCStats)

cmd/vendor/google.golang.org/grpc/stats/stats.go

@@ -49,7 +49,7 @@ type RPCStats interface {
 }
 
 // Begin contains stats when an RPC begins.
-// FailFast is only valid if this Begin is from client side.
+// FailFast are only valid if Client is true.
 type Begin struct {
 	// Client is true if this Begin is from client side.
 	Client bool
@@ -59,7 +59,7 @@ type Begin struct {
 	FailFast bool
 }
 
-// IsClient indicates if the stats information is from client side.
+// IsClient indicates if this is from client side.
 func (s *Begin) IsClient() bool { return s.Client }
 
 func (s *Begin) isRPCStats() {}
@@ -80,19 +80,19 @@ type InPayload struct {
 	RecvTime time.Time
 }
 
-// IsClient indicates if the stats information is from client side.
+// IsClient indicates if this is from client side.
 func (s *InPayload) IsClient() bool { return s.Client }
 
 func (s *InPayload) isRPCStats() {}
 
 // InHeader contains stats when a header is received.
+// FullMethod, addresses and Compression are only valid if Client is false.
 type InHeader struct {
 	// Client is true if this InHeader is from client side.
 	Client bool
 	// WireLength is the wire length of header.
 	WireLength int
 
-	// The following fields are valid only if Client is false.
 	// FullMethod is the full RPC method string, i.e., /package.service/method.
 	FullMethod string
 	// RemoteAddr is the remote address of the corresponding connection.
@@ -103,7 +103,7 @@ type InHeader struct {
 	Compression string
 }
 
-// IsClient indicates if the stats information is from client side.
+// IsClient indicates if this is from client side.
 func (s *InHeader) IsClient() bool { return s.Client }
 
 func (s *InHeader) isRPCStats() {}
@@ -116,7 +116,7 @@ type InTrailer struct {
 	WireLength int
 }
 
-// IsClient indicates if the stats information is from client side.
+// IsClient indicates if this is from client side.
 func (s *InTrailer) IsClient() bool { return s.Client }
 
 func (s *InTrailer) isRPCStats() {}
@@ -137,19 +137,19 @@ type OutPayload struct {
 	SentTime time.Time
 }
 
-// IsClient indicates if this stats information is from client side.
+// IsClient indicates if this is from client side.
 func (s *OutPayload) IsClient() bool { return s.Client }
 
 func (s *OutPayload) isRPCStats() {}
 
 // OutHeader contains stats when a header is sent.
+// FullMethod, addresses and Compression are only valid if Client is true.
 type OutHeader struct {
 	// Client is true if this OutHeader is from client side.
 	Client bool
 	// WireLength is the wire length of header.
 	WireLength int
 
-	// The following fields are valid only if Client is true.
 	// FullMethod is the full RPC method string, i.e., /package.service/method.
 	FullMethod string
 	// RemoteAddr is the remote address of the corresponding connection.
@@ -160,7 +160,7 @@ type OutHeader struct {
 	Compression string
 }
 
-// IsClient indicates if this stats information is from client side.
+// IsClient indicates if this is from client side.
 func (s *OutHeader) IsClient() bool { return s.Client }
 
 func (s *OutHeader) isRPCStats() {}
@@ -173,7 +173,7 @@ type OutTrailer struct {
 	WireLength int
 }
 
-// IsClient indicates if this stats information is from client side.
+// IsClient indicates if this is from client side.
 func (s *OutTrailer) IsClient() bool { return s.Client }
 
 func (s *OutTrailer) isRPCStats() {}
@@ -184,7 +184,7 @@ type End struct {
 	Client bool
 	// EndTime is the time when the RPC ends.
 	EndTime time.Time
-	// Error is the error just happened.  It implements status.Status if non-nil.
+	// Error is the error just happened. Its type is gRPC error.
 	Error error
 }
 

cmd/vendor/google.golang.org/grpc/status/status.go

@@ -1,145 +0,0 @@
-/*
- *
- * Copyright 2017, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-// Package status implements errors returned by gRPC.  These errors are
-// serialized and transmitted on the wire between server and client, and allow
-// for additional data to be transmitted via the Details field in the status
-// proto.  gRPC service handlers should return an error created by this
-// package, and gRPC clients should expect a corresponding error to be
-// returned from the RPC call.
-//
-// This package upholds the invariants that a non-nil error may not
-// contain an OK code, and an OK code must result in a nil error.
-package status
-
-import (
-	"fmt"
-
-	"github.com/golang/protobuf/proto"
-	spb "google.golang.org/genproto/googleapis/rpc/status"
-	"google.golang.org/grpc/codes"
-)
-
-// statusError is an alias of a status proto.  It implements error and Status,
-// and a nil statusError should never be returned by this package.
-type statusError spb.Status
-
-func (se *statusError) Error() string {
-	p := (*spb.Status)(se)
-	return fmt.Sprintf("rpc error: code = %s desc = %s", codes.Code(p.GetCode()), p.GetMessage())
-}
-
-func (se *statusError) status() *Status {
-	return &Status{s: (*spb.Status)(se)}
-}
-
-// Status represents an RPC status code, message, and details.  It is immutable
-// and should be created with New, Newf, or FromProto.
-type Status struct {
-	s *spb.Status
-}
-
-// Code returns the status code contained in s.
-func (s *Status) Code() codes.Code {
-	if s == nil || s.s == nil {
-		return codes.OK
-	}
-	return codes.Code(s.s.Code)
-}
-
-// Message returns the message contained in s.
-func (s *Status) Message() string {
-	if s == nil || s.s == nil {
-		return ""
-	}
-	return s.s.Message
-}
-
-// Proto returns s's status as an spb.Status proto message.
-func (s *Status) Proto() *spb.Status {
-	if s == nil {
-		return nil
-	}
-	return proto.Clone(s.s).(*spb.Status)
-}
-
-// Err returns an immutable error representing s; returns nil if s.Code() is
-// OK.
-func (s *Status) Err() error {
-	if s.Code() == codes.OK {
-		return nil
-	}
-	return (*statusError)(s.s)
-}
-
-// New returns a Status representing c and msg.
-func New(c codes.Code, msg string) *Status {
-	return &Status{s: &spb.Status{Code: int32(c), Message: msg}}
-}
-
-// Newf returns New(c, fmt.Sprintf(format, a...)).
-func Newf(c codes.Code, format string, a ...interface{}) *Status {
-	return New(c, fmt.Sprintf(format, a...))
-}
-
-// Error returns an error representing c and msg.  If c is OK, returns nil.
-func Error(c codes.Code, msg string) error {
-	return New(c, msg).Err()
-}
-
-// Errorf returns Error(c, fmt.Sprintf(format, a...)).
-func Errorf(c codes.Code, format string, a ...interface{}) error {
-	return Error(c, fmt.Sprintf(format, a...))
-}
-
-// ErrorProto returns an error representing s.  If s.Code is OK, returns nil.
-func ErrorProto(s *spb.Status) error {
-	return FromProto(s).Err()
-}
-
-// FromProto returns a Status representing s.
-func FromProto(s *spb.Status) *Status {
-	return &Status{s: proto.Clone(s).(*spb.Status)}
-}
-
-// FromError returns a Status representing err if it was produced from this
-// package, otherwise it returns nil, false.
-func FromError(err error) (s *Status, ok bool) {
-	if err == nil {
-		return &Status{s: &spb.Status{Code: int32(codes.OK)}}, true
-	}
-	if s, ok := err.(*statusError); ok {
-		return s.status(), true
-	}
-	return nil, false
-}

cmd/vendor/google.golang.org/grpc/stream.go

@@ -45,7 +45,6 @@ import (
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/stats"
-	"google.golang.org/grpc/status"
 	"google.golang.org/grpc/transport"
 )
 
@@ -113,24 +112,17 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 		cancel context.CancelFunc
 	)
 	c := defaultCallInfo
-	mc := cc.GetMethodConfig(method)
-	if mc.WaitForReady != nil {
-		c.failFast = !*mc.WaitForReady
+	if mc, ok := cc.getMethodConfig(method); ok {
+		c.failFast = !mc.WaitForReady
+		if mc.Timeout > 0 {
+			ctx, cancel = context.WithTimeout(ctx, mc.Timeout)
 		}
-
-	if mc.Timeout != nil {
-		ctx, cancel = context.WithTimeout(ctx, *mc.Timeout)
 	}
-
-	opts = append(cc.dopts.callOptions, opts...)
 	for _, o := range opts {
 		if err := o.before(&c); err != nil {
 			return nil, toRPCErr(err)
 		}
 	}
-	c.maxSendMessageSize = getMaxSize(mc.MaxReqSize, c.maxSendMessageSize, defaultClientMaxSendMessageSize)
-	c.maxReceiveMessageSize = getMaxSize(mc.MaxRespSize, c.maxReceiveMessageSize, defaultClientMaxReceiveMessageSize)
-
 	callHdr := &transport.CallHdr{
 		Host:   cc.authority,
 		Method: method,
@@ -139,9 +131,6 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 	if cc.dopts.cp != nil {
 		callHdr.SendCompress = cc.dopts.cp.Type()
 	}
-	if c.creds != nil {
-		callHdr.Creds = c.creds
-	}
 	var trInfo traceInfo
 	if EnableTracing {
 		trInfo.tr = trace.New("grpc.Sent."+methodFamily(method), method)
@@ -161,18 +150,18 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 			}
 		}()
 	}
-	ctx = newContextWithRPCInfo(ctx)
 	sh := cc.dopts.copts.StatsHandler
 	if sh != nil {
-		ctx = sh.TagRPC(ctx, &stats.RPCTagInfo{FullMethodName: method, FailFast: c.failFast})
+		ctx = sh.TagRPC(ctx, &stats.RPCTagInfo{FullMethodName: method})
 		begin := &stats.Begin{
 			Client:    true,
 			BeginTime: time.Now(),
 			FailFast:  c.failFast,
 		}
 		sh.HandleRPC(ctx, begin)
+	}
 	defer func() {
-			if err != nil {
+		if err != nil && sh != nil {
 			// Only handle end stats if err != nil.
 			end := &stats.End{
 				Client: true,
@@ -181,7 +170,6 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 			sh.HandleRPC(ctx, end)
 		}
 	}()
-	}
 	gopts := BalancerGetOptions{
 		BlockingWait: !c.failFast,
 	}
@@ -189,7 +177,7 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 		t, put, err = cc.getTransport(ctx, gopts)
 		if err != nil {
 			// TODO(zhaoq): Probably revisit the error handling.
-			if _, ok := status.FromError(err); ok {
+			if _, ok := err.(*rpcError); ok {
 				return nil, err
 			}
 			if err == errConnClosing || err == errConnUnavailable {
@@ -204,17 +192,14 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 
 		s, err = t.NewStream(ctx, callHdr)
 		if err != nil {
-			if _, ok := err.(transport.ConnectionError); ok && put != nil {
-				// If error is connection error, transport was sending data on wire,
-				// and we are not sure if anything has been sent on wire.
-				// If error is not connection error, we are sure nothing has been sent.
-				updateRPCInfoInContext(ctx, rpcInfo{bytesSent: true, bytesReceived: false})
-			}
 			if put != nil {
 				put()
 				put = nil
 			}
-			if _, ok := err.(transport.ConnectionError); (ok || err == transport.ErrStreamDrain) && !c.failFast {
+			if _, ok := err.(transport.ConnectionError); ok || err == transport.ErrStreamDrain {
+				if c.failFast {
+					return nil, toRPCErr(err)
+				}
 				continue
 			}
 			return nil, toRPCErr(err)
@@ -228,6 +213,7 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 		codec:      cc.dopts.codec,
 		cp:         cc.dopts.cp,
 		dc:         cc.dopts.dc,
+		maxMsgSize: cc.dopts.maxMsgSize,
 		cancel:     cancel,
 
 		put: put,
@@ -250,13 +236,14 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 		select {
 		case <-t.Error():
 			// Incur transport error, simply exit.
-		case <-cc.ctx.Done():
-			cs.finish(ErrClientConnClosing)
-			cs.closeTransportStream(ErrClientConnClosing)
 		case <-s.Done():
 			// TODO: The trace of the RPC is terminated here when there is no pending
 			// I/O, which is probably not the optimal solution.
-			cs.finish(s.Status().Err())
+			if s.StatusCode() == codes.OK {
+				cs.finish(nil)
+			} else {
+				cs.finish(Errorf(s.StatusCode(), "%s", s.StatusDesc()))
+			}
 			cs.closeTransportStream(nil)
 		case <-s.GoAway():
 			cs.finish(errConnDrain)
@@ -282,6 +269,7 @@ type clientStream struct {
 	cp         Compressor
 	cbuf       *bytes.Buffer
 	dc         Decompressor
+	maxMsgSize int
 	cancel     context.CancelFunc
 
 	tracing bool // set to EnableTracing when the clientStream is created.
@@ -289,7 +277,6 @@ type clientStream struct {
 	mu     sync.Mutex
 	put    func()
 	closed bool
-	finished bool
 	// trInfo.tr is set when the clientStream is created (if EnableTracing is true),
 	// and is set to nil when the clientStream's finish method is called.
 	trInfo traceInfo
@@ -364,13 +351,7 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
 		}
 	}()
 	if err != nil {
-		return err
-	}
-	if cs.c.maxSendMessageSize == nil {
-		return Errorf(codes.Internal, "callInfo maxSendMessageSize field uninitialized(nil)")
-	}
-	if len(out) > *cs.c.maxSendMessageSize {
-		return Errorf(codes.ResourceExhausted, "trying to send message larger than max (%d vs. %d)", len(out), *cs.c.maxSendMessageSize)
+		return Errorf(codes.Internal, "grpc: %v", err)
 	}
 	err = cs.t.Write(cs.s, out, &transport.Options{Last: false})
 	if err == nil && outPayload != nil {
@@ -381,16 +362,28 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
 }
 
 func (cs *clientStream) RecvMsg(m interface{}) (err error) {
+	defer func() {
+		if err != nil && cs.statsHandler != nil {
+			// Only generate End if err != nil.
+			// If err == nil, it's not the last RecvMsg.
+			// The last RecvMsg gets either an RPC error or io.EOF.
+			end := &stats.End{
+				Client:  true,
+				EndTime: time.Now(),
+			}
+			if err != io.EOF {
+				end.Error = toRPCErr(err)
+			}
+			cs.statsHandler.HandleRPC(cs.statsCtx, end)
+		}
+	}()
 	var inPayload *stats.InPayload
 	if cs.statsHandler != nil {
 		inPayload = &stats.InPayload{
 			Client: true,
 		}
 	}
-	if cs.c.maxReceiveMessageSize == nil {
-		return Errorf(codes.Internal, "callInfo maxReceiveMessageSize field uninitialized(nil)")
-	}
-	err = recv(cs.p, cs.codec, cs.s, cs.dc, m, *cs.c.maxReceiveMessageSize, inPayload)
+	err = recv(cs.p, cs.codec, cs.s, cs.dc, m, cs.maxMsgSize, inPayload)
 	defer func() {
 		// err != nil indicates the termination of the stream.
 		if err != nil {
@@ -413,33 +406,30 @@ func (cs *clientStream) RecvMsg(m interface{}) (err error) {
 		}
 		// Special handling for client streaming rpc.
 		// This recv expects EOF or errors, so we don't collect inPayload.
-		if cs.c.maxReceiveMessageSize == nil {
-			return Errorf(codes.Internal, "callInfo maxReceiveMessageSize field uninitialized(nil)")
-		}
-		err = recv(cs.p, cs.codec, cs.s, cs.dc, m, *cs.c.maxReceiveMessageSize, nil)
+		err = recv(cs.p, cs.codec, cs.s, cs.dc, m, cs.maxMsgSize, nil)
 		cs.closeTransportStream(err)
 		if err == nil {
 			return toRPCErr(errors.New("grpc: client streaming protocol violation: get <nil>, want <EOF>"))
 		}
 		if err == io.EOF {
-			if se := cs.s.Status().Err(); se != nil {
-				return se
-			}
+			if cs.s.StatusCode() == codes.OK {
 				cs.finish(err)
 				return nil
 			}
+			return Errorf(cs.s.StatusCode(), "%s", cs.s.StatusDesc())
+		}
 		return toRPCErr(err)
 	}
 	if _, ok := err.(transport.ConnectionError); !ok {
 		cs.closeTransportStream(err)
 	}
 	if err == io.EOF {
-		if statusErr := cs.s.Status().Err(); statusErr != nil {
-			return statusErr
-		}
+		if cs.s.StatusCode() == codes.OK {
 			// Returns io.EOF to indicate the end of the stream.
 			return
 		}
+		return Errorf(cs.s.StatusCode(), "%s", cs.s.StatusDesc())
+	}
 	return toRPCErr(err)
 }
 
@@ -472,39 +462,20 @@ func (cs *clientStream) closeTransportStream(err error) {
 }
 
 func (cs *clientStream) finish(err error) {
-	cs.mu.Lock()
-	defer cs.mu.Unlock()
-	if cs.finished {
-		return
-	}
-	cs.finished = true
 	defer func() {
 		if cs.cancel != nil {
 			cs.cancel()
 		}
 	}()
+	cs.mu.Lock()
+	defer cs.mu.Unlock()
 	for _, o := range cs.opts {
 		o.after(&cs.c)
 	}
 	if cs.put != nil {
-		updateRPCInfoInContext(cs.s.Context(), rpcInfo{
-			bytesSent:     cs.s.BytesSent(),
-			bytesReceived: cs.s.BytesReceived(),
-		})
 		cs.put()
 		cs.put = nil
 	}
-	if cs.statsHandler != nil {
-		end := &stats.End{
-			Client:  true,
-			EndTime: time.Now(),
-		}
-		if err != io.EOF {
-			// end.Error is nil if the RPC finished successfully.
-			end.Error = toRPCErr(err)
-		}
-		cs.statsHandler.HandleRPC(cs.statsCtx, end)
-	}
 	if !cs.tracing {
 		return
 	}
@@ -548,8 +519,9 @@ type serverStream struct {
 	cp         Compressor
 	dc         Decompressor
 	cbuf       *bytes.Buffer
-	maxReceiveMessageSize int
-	maxSendMessageSize    int
+	maxMsgSize int
+	statusCode codes.Code
+	statusDesc string
 	trInfo     *traceInfo
 
 	statsHandler stats.Handler
@@ -606,11 +578,9 @@ func (ss *serverStream) SendMsg(m interface{}) (err error) {
 		}
 	}()
 	if err != nil {
+		err = Errorf(codes.Internal, "grpc: %v", err)
 		return err
 	}
-	if len(out) > ss.maxSendMessageSize {
-		return Errorf(codes.ResourceExhausted, "trying to send message larger than max (%d vs. %d)", len(out), ss.maxSendMessageSize)
-	}
 	if err := ss.t.Write(ss.s, out, &transport.Options{Last: false}); err != nil {
 		return toRPCErr(err)
 	}
@@ -640,7 +610,7 @@ func (ss *serverStream) RecvMsg(m interface{}) (err error) {
 	if ss.statsHandler != nil {
 		inPayload = &stats.InPayload{}
 	}
-	if err := recv(ss.p, ss.codec, ss.s, ss.dc, m, ss.maxReceiveMessageSize, inPayload); err != nil {
+	if err := recv(ss.p, ss.codec, ss.s, ss.dc, m, ss.maxMsgSize, inPayload); err != nil {
 		if err == io.EOF {
 			return err
 		}

cmd/vendor/google.golang.org/grpc/transport/control.go

@@ -49,17 +49,9 @@ const (
 	initialWindowSize       = defaultWindowSize      // for an RPC
 	initialConnWindowSize   = defaultWindowSize * 16 // for a connection
 	infinity                = time.Duration(math.MaxInt64)
-	defaultClientKeepaliveTime    = infinity
-	defaultClientKeepaliveTimeout = time.Duration(20 * time.Second)
+	defaultKeepaliveTime    = infinity
+	defaultKeepaliveTimeout = time.Duration(20 * time.Second)
 	defaultMaxStreamsClient = 100
-	defaultMaxConnectionIdle      = infinity
-	defaultMaxConnectionAge       = infinity
-	defaultMaxConnectionAgeGrace  = infinity
-	defaultServerKeepaliveTime    = time.Duration(2 * time.Hour)
-	defaultServerKeepaliveTimeout = time.Duration(20 * time.Second)
-	defaultKeepalivePolicyMinTime = time.Duration(5 * time.Minute)
-	// max window limit set by HTTP2 Specs.
-	maxWindowSize = math.MaxInt32
 )
 
 // The following defines various control items which could flow through
@@ -68,7 +60,6 @@ const (
 type windowUpdate struct {
 	streamID  uint32
 	increment uint32
-	flush     bool
 }
 
 func (*windowUpdate) item() {}
@@ -88,8 +79,6 @@ type resetStream struct {
 func (*resetStream) item() {}
 
 type goAway struct {
-	code      http2.ErrCode
-	debugData []byte
 }
 
 func (*goAway) item() {}
@@ -170,40 +159,6 @@ type inFlow struct {
 	// The amount of data the application has consumed but grpc has not sent
 	// window update for them. Used to reduce window update frequency.
 	pendingUpdate uint32
-	// delta is the extra window update given by receiver when an application
-	// is reading data bigger in size than the inFlow limit.
-	delta uint32
-}
-
-func (f *inFlow) maybeAdjust(n uint32) uint32 {
-	if n > uint32(math.MaxInt32) {
-		n = uint32(math.MaxInt32)
-	}
-	f.mu.Lock()
-	defer f.mu.Unlock()
-	// estSenderQuota is the receiver's view of the maximum number of bytes the sender
-	// can send without a window update.
-	estSenderQuota := int32(f.limit - (f.pendingData + f.pendingUpdate))
-	// estUntransmittedData is the maximum number of bytes the sends might not have put
-	// on the wire yet. A value of 0 or less means that we have already received all or
-	// more bytes than the application is requesting to read.
-	estUntransmittedData := int32(n - f.pendingData) // Casting into int32 since it could be negative.
-	// This implies that unless we send a window update, the sender won't be able to send all the bytes
-	// for this message. Therefore we must send an update over the limit since there's an active read
-	// request from the application.
-	if estUntransmittedData > estSenderQuota {
-		// Sender's window shouldn't go more than 2^31 - 1 as speecified in the HTTP spec.
-		if f.limit+n > maxWindowSize {
-			f.delta = maxWindowSize - f.limit
-		} else {
-			// Send a window update for the whole message and not just the difference between
-			// estUntransmittedData and estSenderQuota. This will be helpful in case the message
-			// is padded; We will fallback on the current available window(at least a 1/4th of the limit).
-			f.delta = n
-		}
-		return f.delta
-	}
-	return 0
 }
 
 // onData is invoked when some data frame is received. It updates pendingData.
@@ -211,7 +166,7 @@ func (f *inFlow) onData(n uint32) error {
 	f.mu.Lock()
 	defer f.mu.Unlock()
 	f.pendingData += n
-	if f.pendingData+f.pendingUpdate > f.limit+f.delta {
+	if f.pendingData+f.pendingUpdate > f.limit {
 		return fmt.Errorf("received %d-bytes data exceeding the limit %d bytes", f.pendingData+f.pendingUpdate, f.limit)
 	}
 	return nil
@@ -226,13 +181,6 @@ func (f *inFlow) onRead(n uint32) uint32 {
 		return 0
 	}
 	f.pendingData -= n
-	if n > f.delta {
-		n -= f.delta
-		f.delta = 0
-	} else {
-		f.delta -= n
-		n = 0
-	}
 	f.pendingUpdate += n
 	if f.pendingUpdate >= f.limit/4 {
 		wu := f.pendingUpdate
@@ -242,10 +190,10 @@ func (f *inFlow) onRead(n uint32) uint32 {
 	return 0
 }
 
-func (f *inFlow) resetPendingUpdate() uint32 {
+func (f *inFlow) resetPendingData() uint32 {
 	f.mu.Lock()
 	defer f.mu.Unlock()
-	n := f.pendingUpdate
-	f.pendingUpdate = 0
+	n := f.pendingData
+	f.pendingData = 0
 	return n
 }

cmd/vendor/google.golang.org/grpc/transport/go16.go

@@ -37,8 +37,6 @@ package transport
 import (
 	"net"
 
-	"google.golang.org/grpc/codes"
-
 	"golang.org/x/net/context"
 )
 
@@ -46,14 +44,3 @@ import (
 func dialContext(ctx context.Context, network, address string) (net.Conn, error) {
 	return (&net.Dialer{Cancel: ctx.Done()}).Dial(network, address)
 }
-
-// ContextErr converts the error from context package into a StreamError.
-func ContextErr(err error) StreamError {
-	switch err {
-	case context.DeadlineExceeded:
-		return streamErrorf(codes.DeadlineExceeded, "%v", err)
-	case context.Canceled:
-		return streamErrorf(codes.Canceled, "%v", err)
-	}
-	return streamErrorf(codes.Internal, "Unexpected error from context packet: %v", err)
-}

cmd/vendor/google.golang.org/grpc/transport/go17.go

@@ -35,26 +35,12 @@
 package transport
 
 import (
-	"context"
 	"net"
 
-	"google.golang.org/grpc/codes"
-
-	netctx "golang.org/x/net/context"
+	"golang.org/x/net/context"
 )
 
 // dialContext connects to the address on the named network.
 func dialContext(ctx context.Context, network, address string) (net.Conn, error) {
 	return (&net.Dialer{}).DialContext(ctx, network, address)
 }
-
-// ContextErr converts the error from context package into a StreamError.
-func ContextErr(err error) StreamError {
-	switch err {
-	case context.DeadlineExceeded, netctx.DeadlineExceeded:
-		return streamErrorf(codes.DeadlineExceeded, "%v", err)
-	case context.Canceled, netctx.Canceled:
-		return streamErrorf(codes.Canceled, "%v", err)
-	}
-	return streamErrorf(codes.Internal, "Unexpected error from context packet: %v", err)
-}

cmd/vendor/google.golang.org/grpc/transport/handler_server.go

@@ -53,7 +53,6 @@ import (
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/peer"
-	"google.golang.org/grpc/status"
 )
 
 // NewServerHandlerTransport returns a ServerTransport handling gRPC
@@ -102,9 +101,14 @@ func NewServerHandlerTransport(w http.ResponseWriter, r *http.Request) (ServerTr
 			continue
 		}
 		for _, v := range vv {
-			v, err := decodeMetadataHeader(k, v)
-			if err != nil {
-				return nil, streamErrorf(codes.InvalidArgument, "malformed binary metadata: %v", err)
+			if k == "user-agent" {
+				// user-agent is special. Copying logic of http_util.go.
+				if i := strings.LastIndex(v, " "); i == -1 {
+					// There is no application user agent string being set
+					continue
+				} else {
+					v = v[:i]
+				}
 			}
 			metakv = append(metakv, k, v)
 		}
@@ -170,22 +174,15 @@ func (a strAddr) String() string { return string(a) }
 
 // do runs fn in the ServeHTTP goroutine.
 func (ht *serverHandlerTransport) do(fn func()) error {
-	// Avoid a panic writing to closed channel. Imperfect but maybe good enough.
-	select {
-	case <-ht.closedCh:
-		return ErrConnClosing
-	default:
 	select {
 	case ht.writes <- fn:
 		return nil
 	case <-ht.closedCh:
 		return ErrConnClosing
 	}
-
-	}
 }
 
-func (ht *serverHandlerTransport) WriteStatus(s *Stream, st *status.Status) error {
+func (ht *serverHandlerTransport) WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error {
 	err := ht.do(func() {
 		ht.writeCommonHeaders(s)
 
@@ -195,13 +192,10 @@ func (ht *serverHandlerTransport) WriteStatus(s *Stream, st *status.Status) erro
 		ht.rw.(http.Flusher).Flush()
 
 		h := ht.rw.Header()
-		h.Set("Grpc-Status", fmt.Sprintf("%d", st.Code()))
-		if m := st.Message(); m != "" {
-			h.Set("Grpc-Message", encodeGrpcMessage(m))
+		h.Set("Grpc-Status", fmt.Sprintf("%d", statusCode))
+		if statusDesc != "" {
+			h.Set("Grpc-Message", encodeGrpcMessage(statusDesc))
 		}
-
-		// TODO: Support Grpc-Status-Details-Bin
-
 		if md := s.Trailer(); len(md) > 0 {
 			for k, vv := range md {
 				// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
@@ -209,9 +203,10 @@ func (ht *serverHandlerTransport) WriteStatus(s *Stream, st *status.Status) erro
 					continue
 				}
 				for _, v := range vv {
-					// http2 ResponseWriter mechanism to send undeclared Trailers after
-					// the headers have possibly been written.
-					h.Add(http2.TrailerPrefix+k, encodeMetadataHeader(k, v))
+					// http2 ResponseWriter mechanism to
+					// send undeclared Trailers after the
+					// headers have possibly been written.
+					h.Add(http2.TrailerPrefix+k, v)
 				}
 			}
 		}
@@ -239,7 +234,6 @@ func (ht *serverHandlerTransport) writeCommonHeaders(s *Stream) {
 	// and https://golang.org/pkg/net/http/#example_ResponseWriter_trailers
 	h.Add("Trailer", "Grpc-Status")
 	h.Add("Trailer", "Grpc-Message")
-	// TODO: Support Grpc-Status-Details-Bin
 
 	if s.sendCompress != "" {
 		h.Set("Grpc-Encoding", s.sendCompress)
@@ -266,7 +260,6 @@ func (ht *serverHandlerTransport) WriteHeader(s *Stream, md metadata.MD) error {
 				continue
 			}
 			for _, v := range vv {
-				v = encodeMetadataHeader(k, v)
 				h.Add(k, v)
 			}
 		}
@@ -308,7 +301,7 @@ func (ht *serverHandlerTransport) HandleStreams(startStream func(*Stream), trace
 
 	s := &Stream{
 		id:            0,            // irrelevant
-		requestRead:  func(int) {},
+		windowHandler: func(int) {}, // nothing
 		cancel:        cancel,
 		buf:           newRecvBuffer(),
 		st:            ht,
@@ -321,13 +314,10 @@ func (ht *serverHandlerTransport) HandleStreams(startStream func(*Stream), trace
 	if req.TLS != nil {
 		pr.AuthInfo = credentials.TLSInfo{State: *req.TLS}
 	}
-	ctx = metadata.NewIncomingContext(ctx, ht.headerMD)
+	ctx = metadata.NewContext(ctx, ht.headerMD)
 	ctx = peer.NewContext(ctx, pr)
 	s.ctx = newContextWithStream(ctx, s)
-	s.trReader = &transportReader{
-		reader:        &recvBufferReader{ctx: s.ctx, recv: s.buf},
-		windowHandler: func(int) {},
-	}
+	s.dec = &recvBufferReader{ctx: s.ctx, recv: s.buf}
 
 	// readerDone is closed when the Body.Read-ing goroutine exits.
 	readerDone := make(chan struct{})

cmd/vendor/google.golang.org/grpc/transport/http2_client.go

@@ -35,6 +35,7 @@ package transport
 
 import (
 	"bytes"
+	"fmt"
 	"io"
 	"math"
 	"net"
@@ -53,7 +54,6 @@ import (
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/peer"
 	"google.golang.org/grpc/stats"
-	"google.golang.org/grpc/status"
 )
 
 // http2Client implements the ClientTransport interface with HTTP2.
@@ -101,8 +101,6 @@ type http2Client struct {
 	// The scheme used: https if TLS is on, http otherwise.
 	scheme string
 
-	isSecure bool
-
 	creds []credentials.PerRPCCredentials
 
 	// Boolean to keep track of reading activity on transport.
@@ -112,8 +110,6 @@ type http2Client struct {
 
 	statsHandler stats.Handler
 
-	initialWindowSize int32
-
 	mu            sync.Mutex     // guard the following variables
 	state         transportState // the state of underlying connection
 	activeStreams map[uint32]*Stream
@@ -125,9 +121,6 @@ type http2Client struct {
 	goAwayID uint32
 	// prevGoAway ID records the Last-Stream-ID in the previous GOAway frame.
 	prevGoAwayID uint32
-	// goAwayReason records the http2.ErrCode and debug data received with the
-	// GoAway frame.
-	goAwayReason GoAwayReason
 }
 
 func dial(ctx context.Context, fn func(context.Context, string) (net.Conn, error), addr string) (net.Conn, error) {
@@ -173,9 +166,9 @@ func newHTTP2Client(ctx context.Context, addr TargetInfo, opts ConnectOptions) (
 	conn, err := dial(ctx, opts.Dialer, addr.Addr)
 	if err != nil {
 		if opts.FailOnNonTempDialError {
-			return nil, connectionErrorf(isTemporary(err), err, "transport: error while dialing: %v", err)
+			return nil, connectionErrorf(isTemporary(err), err, "transport: %v", err)
 		}
-		return nil, connectionErrorf(true, err, "transport: Error while dialing %v", err)
+		return nil, connectionErrorf(true, err, "transport: %v", err)
 	}
 	// Any further errors will close the underlying connection
 	defer func(conn net.Conn) {
@@ -183,10 +176,7 @@ func newHTTP2Client(ctx context.Context, addr TargetInfo, opts ConnectOptions) (
 			conn.Close()
 		}
 	}(conn)
-	var (
-		isSecure bool
-		authInfo credentials.AuthInfo
-	)
+	var authInfo credentials.AuthInfo
 	if creds := opts.TransportCredentials; creds != nil {
 		scheme = "https"
 		conn, authInfo, err = creds.ClientHandshake(ctx, addr.Addr, conn)
@@ -194,21 +184,16 @@ func newHTTP2Client(ctx context.Context, addr TargetInfo, opts ConnectOptions) (
 			// Credentials handshake errors are typically considered permanent
 			// to avoid retrying on e.g. bad certificates.
 			temp := isTemporary(err)
-			return nil, connectionErrorf(temp, err, "transport: authentication handshake failed: %v", err)
+			return nil, connectionErrorf(temp, err, "transport: %v", err)
 		}
-		isSecure = true
 	}
 	kp := opts.KeepaliveParams
 	// Validate keepalive parameters.
 	if kp.Time == 0 {
-		kp.Time = defaultClientKeepaliveTime
+		kp.Time = defaultKeepaliveTime
 	}
 	if kp.Timeout == 0 {
-		kp.Timeout = defaultClientKeepaliveTimeout
-	}
-	icwz := int32(initialConnWindowSize)
-	if opts.InitialConnWindowSize >= defaultWindowSize {
-		icwz = opts.InitialConnWindowSize
+		kp.Timeout = defaultKeepaliveTimeout
 	}
 	var buf bytes.Buffer
 	t := &http2Client{
@@ -231,22 +216,17 @@ func newHTTP2Client(ctx context.Context, addr TargetInfo, opts ConnectOptions) (
 		hBuf:            &buf,
 		hEnc:            hpack.NewEncoder(&buf),
 		controlBuf:      newRecvBuffer(),
-		fc:                &inFlow{limit: uint32(icwz)},
+		fc:              &inFlow{limit: initialConnWindowSize},
 		sendQuotaPool:   newQuotaPool(defaultWindowSize),
 		scheme:          scheme,
 		state:           reachable,
 		activeStreams:   make(map[uint32]*Stream),
-		isSecure:          isSecure,
 		creds:           opts.PerRPCCredentials,
 		maxStreams:      defaultMaxStreamsClient,
 		streamsQuota:    newQuotaPool(defaultMaxStreamsClient),
 		streamSendQuota: defaultWindowSize,
 		kp:              kp,
 		statsHandler:    opts.StatsHandler,
-		initialWindowSize: initialWindowSize,
-	}
-	if opts.InitialWindowSize >= defaultWindowSize {
-		t.initialWindowSize = opts.InitialWindowSize
 	}
 	// Make sure awakenKeepalive can't be written upon.
 	// keepalive routine will make it writable, if need be.
@@ -269,29 +249,29 @@ func newHTTP2Client(ctx context.Context, addr TargetInfo, opts ConnectOptions) (
 	n, err := t.conn.Write(clientPreface)
 	if err != nil {
 		t.Close()
-		return nil, connectionErrorf(true, err, "transport: failed to write client preface: %v", err)
+		return nil, connectionErrorf(true, err, "transport: %v", err)
 	}
 	if n != len(clientPreface) {
 		t.Close()
 		return nil, connectionErrorf(true, err, "transport: preface mismatch, wrote %d bytes; want %d", n, len(clientPreface))
 	}
-	if t.initialWindowSize != defaultWindowSize {
+	if initialWindowSize != defaultWindowSize {
 		err = t.framer.writeSettings(true, http2.Setting{
 			ID:  http2.SettingInitialWindowSize,
-			Val: uint32(t.initialWindowSize),
+			Val: uint32(initialWindowSize),
 		})
 	} else {
 		err = t.framer.writeSettings(true)
 	}
 	if err != nil {
 		t.Close()
-		return nil, connectionErrorf(true, err, "transport: failed to write initial settings frame: %v", err)
+		return nil, connectionErrorf(true, err, "transport: %v", err)
 	}
 	// Adjust the connection flow control window if needed.
-	if delta := uint32(icwz - defaultWindowSize); delta > 0 {
+	if delta := uint32(initialConnWindowSize - defaultWindowSize); delta > 0 {
 		if err := t.framer.writeWindowUpdate(true, 0, delta); err != nil {
 			t.Close()
-			return nil, connectionErrorf(true, err, "transport: failed to write window update: %v", err)
+			return nil, connectionErrorf(true, err, "transport: %v", err)
 		}
 	}
 	go t.controller()
@@ -311,33 +291,27 @@ func (t *http2Client) newStream(ctx context.Context, callHdr *CallHdr) *Stream {
 		method:        callHdr.Method,
 		sendCompress:  callHdr.SendCompress,
 		buf:           newRecvBuffer(),
-		fc:            &inFlow{limit: uint32(t.initialWindowSize)},
+		fc:            &inFlow{limit: initialWindowSize},
 		sendQuotaPool: newQuotaPool(int(t.streamSendQuota)),
 		headerChan:    make(chan struct{}),
 	}
 	t.nextID += 2
-	s.requestRead = func(n int) {
-		t.adjustWindow(s, uint32(n))
+	s.windowHandler = func(n int) {
+		t.updateWindow(s, uint32(n))
 	}
 	// The client side stream context should have exactly the same life cycle with the user provided context.
 	// That means, s.ctx should be read-only. And s.ctx is done iff ctx is done.
 	// So we use the original context here instead of creating a copy.
 	s.ctx = ctx
-	s.trReader = &transportReader{
-		reader: &recvBufferReader{
+	s.dec = &recvBufferReader{
 		ctx:    s.ctx,
 		goAway: s.goAway,
 		recv:   s.buf,
-		},
-		windowHandler: func(n int) {
-			t.updateWindow(s, uint32(n))
-		},
 	}
-
 	return s
 }
 
-// NewStream creates a stream and registers it into the transport as "active"
+// NewStream creates a stream and register it into the transport as "active"
 // streams.
 func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Stream, err error) {
 	pr := &peer.Peer{
@@ -347,13 +321,10 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
 	if t.authInfo != nil {
 		pr.AuthInfo = t.authInfo
 	}
+	userCtx := ctx
 	ctx = peer.NewContext(ctx, pr)
-	var (
-		authData = make(map[string]string)
-		audience string
-	)
-	// Create an audience string only if needed.
-	if len(t.creds) > 0 || callHdr.Creds != nil {
+	authData := make(map[string]string)
+	for _, c := range t.creds {
 		// Construct URI required to get auth request metadata.
 		var port string
 		if pos := strings.LastIndex(t.target, ":"); pos != -1 {
@@ -364,39 +335,17 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
 		}
 		pos := strings.LastIndex(callHdr.Method, "/")
 		if pos == -1 {
-			pos = len(callHdr.Method)
+			return nil, streamErrorf(codes.InvalidArgument, "transport: malformed method name: %q", callHdr.Method)
 		}
-		audience = "https://" + callHdr.Host + port + callHdr.Method[:pos]
-	}
-	for _, c := range t.creds {
+		audience := "https://" + callHdr.Host + port + callHdr.Method[:pos]
 		data, err := c.GetRequestMetadata(ctx, audience)
 		if err != nil {
-			return nil, streamErrorf(codes.Internal, "transport: %v", err)
+			return nil, streamErrorf(codes.InvalidArgument, "transport: %v", err)
 		}
 		for k, v := range data {
-			// Capital header names are illegal in HTTP/2.
-			k = strings.ToLower(k)
 			authData[k] = v
 		}
 	}
-	callAuthData := make(map[string]string)
-	// Check if credentials.PerRPCCredentials were provided via call options.
-	// Note: if these credentials are provided both via dial options and call
-	// options, then both sets of credentials will be applied.
-	if callCreds := callHdr.Creds; callCreds != nil {
-		if !t.isSecure && callCreds.RequireTransportSecurity() {
-			return nil, streamErrorf(codes.Unauthenticated, "transport: cannot send secure credentials on an insecure conneciton")
-		}
-		data, err := callCreds.GetRequestMetadata(ctx, audience)
-		if err != nil {
-			return nil, streamErrorf(codes.Internal, "transport: %v", err)
-		}
-		for k, v := range data {
-			// Capital header names are illegal in HTTP/2
-			k = strings.ToLower(k)
-			callAuthData[k] = v
-		}
-	}
 	t.mu.Lock()
 	if t.activeStreams == nil {
 		t.mu.Unlock()
@@ -439,6 +388,7 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
 		return nil, ErrConnClosing
 	}
 	s := t.newStream(ctx, callHdr)
+	s.clientStatsCtx = userCtx
 	t.activeStreams[s.id] = s
 	// If the number of active streams change from 0 to 1, then check if keepalive
 	// has gone dormant. If so, wake it up.
@@ -474,34 +424,33 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
 	}
 
 	for k, v := range authData {
-		t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
-	}
-	for k, v := range callAuthData {
-		t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
+		// Capital header names are illegal in HTTP/2.
+		k = strings.ToLower(k)
+		t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: v})
 	}
 	var (
 		hasMD      bool
 		endHeaders bool
 	)
-	if md, ok := metadata.FromOutgoingContext(ctx); ok {
+	if md, ok := metadata.FromContext(ctx); ok {
 		hasMD = true
-		for k, vv := range md {
+		for k, v := range md {
 			// HTTP doesn't allow you to set pseudoheaders after non pseudoheaders were set.
 			if isReservedHeader(k) {
 				continue
 			}
-			for _, v := range vv {
-				t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
+			for _, entry := range v {
+				t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
 			}
 		}
 	}
 	if md, ok := t.md.(*metadata.MD); ok {
-		for k, vv := range *md {
+		for k, v := range *md {
 			if isReservedHeader(k) {
 				continue
 			}
-			for _, v := range vv {
-				t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
+			for _, entry := range v {
+				t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
 			}
 		}
 	}
@@ -541,8 +490,6 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
 			return nil, connectionErrorf(true, err, "transport: %v", err)
 		}
 	}
-	s.bytesSent = true
-
 	if t.statsHandler != nil {
 		outHeader := &stats.OutHeader{
 			Client:      true,
@@ -552,7 +499,7 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
 			LocalAddr:   t.localAddr,
 			Compression: callHdr.SendCompress,
 		}
-		t.statsHandler.HandleRPC(s.ctx, outHeader)
+		t.statsHandler.HandleRPC(s.clientStatsCtx, outHeader)
 	}
 	t.writableChan <- 0
 	return s, nil
@@ -566,10 +513,6 @@ func (t *http2Client) CloseStream(s *Stream, err error) {
 		t.mu.Unlock()
 		return
 	}
-	if err != nil {
-		// notify in-flight streams, before the deletion
-		s.write(recvMsg{err: err})
-	}
 	delete(t.activeStreams, s.id)
 	if t.state == draining && len(t.activeStreams) == 0 {
 		// The transport is draining and s is the last live stream on t.
@@ -599,6 +542,11 @@ func (t *http2Client) CloseStream(s *Stream, err error) {
 	s.mu.Lock()
 	rstStream = s.rstStream
 	rstError = s.rstError
+	if q := s.fc.resetPendingData(); q > 0 {
+		if n := t.fc.onRead(q); n > 0 {
+			t.controlBuf.put(&windowUpdate{0, n})
+		}
+	}
 	if s.state == streamDone {
 		s.mu.Unlock()
 		return
@@ -807,24 +755,6 @@ func (t *http2Client) getStream(f http2.Frame) (*Stream, bool) {
 	return s, ok
 }
 
-// adjustWindow sends out extra window update over the initial window size
-// of stream if the application is requesting data larger in size than
-// the window.
-func (t *http2Client) adjustWindow(s *Stream, n uint32) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	if s.state == streamDone {
-		return
-	}
-	if w := s.fc.maybeAdjust(n); w > 0 {
-		// Piggyback conneciton's window update along.
-		if cw := t.fc.resetPendingUpdate(); cw > 0 {
-			t.controlBuf.put(&windowUpdate{0, cw, false})
-		}
-		t.controlBuf.put(&windowUpdate{s.id, w, true})
-	}
-}
-
 // updateWindow adjusts the inbound quota for the stream and the transport.
 // Window updates will deliver to the controller for sending when
 // the cumulative quota exceeds the corresponding threshold.
@@ -834,11 +764,11 @@ func (t *http2Client) updateWindow(s *Stream, n uint32) {
 	if s.state == streamDone {
 		return
 	}
-	if w := s.fc.onRead(n); w > 0 {
-		if cw := t.fc.resetPendingUpdate(); cw > 0 {
-			t.controlBuf.put(&windowUpdate{0, cw, false})
+	if w := t.fc.onRead(n); w > 0 {
+		t.controlBuf.put(&windowUpdate{0, w})
 	}
-		t.controlBuf.put(&windowUpdate{s.id, w, true})
+	if w := s.fc.onRead(n); w > 0 {
+		t.controlBuf.put(&windowUpdate{s.id, w})
 	}
 }
 
@@ -848,39 +778,43 @@ func (t *http2Client) handleData(f *http2.DataFrame) {
 		t.notifyError(connectionErrorf(true, err, "%v", err))
 		return
 	}
-	// Decouple connection's flow control from application's read.
-	// An update on connection's flow control should not depend on
-	// whether user application has read the data or not. Such a
-	// restriction is already imposed on the stream's flow control,
-	// and therefore the sender will be blocked anyways.
-	// Decoupling the connection flow control will prevent other
-	// active(fast) streams from starving in presence of slow or
-	// inactive streams.
-	if w := t.fc.onRead(uint32(size)); w > 0 {
-		t.controlBuf.put(&windowUpdate{0, w, true})
-	}
 	// Select the right stream to dispatch.
 	s, ok := t.getStream(f)
 	if !ok {
+		if w := t.fc.onRead(uint32(size)); w > 0 {
+			t.controlBuf.put(&windowUpdate{0, w})
+		}
 		return
 	}
 	if size > 0 {
+		if f.Header().Flags.Has(http2.FlagDataPadded) {
+			if w := t.fc.onRead(uint32(size) - uint32(len(f.Data()))); w > 0 {
+				t.controlBuf.put(&windowUpdate{0, w})
+			}
+		}
 		s.mu.Lock()
 		if s.state == streamDone {
 			s.mu.Unlock()
+			// The stream has been closed. Release the corresponding quota.
+			if w := t.fc.onRead(uint32(size)); w > 0 {
+				t.controlBuf.put(&windowUpdate{0, w})
+			}
 			return
 		}
 		if err := s.fc.onData(uint32(size)); err != nil {
+			s.state = streamDone
+			s.statusCode = codes.Internal
+			s.statusDesc = err.Error()
 			s.rstStream = true
 			s.rstError = http2.ErrCodeFlowControl
-			s.finish(status.New(codes.Internal, err.Error()))
+			close(s.done)
 			s.mu.Unlock()
 			s.write(recvMsg{err: io.EOF})
 			return
 		}
 		if f.Header().Flags.Has(http2.FlagDataPadded) {
 			if w := s.fc.onRead(uint32(size) - uint32(len(f.Data()))); w > 0 {
-				t.controlBuf.put(&windowUpdate{s.id, w, true})
+				t.controlBuf.put(&windowUpdate{s.id, w})
 			}
 		}
 		s.mu.Unlock()
@@ -901,7 +835,10 @@ func (t *http2Client) handleData(f *http2.DataFrame) {
 			s.mu.Unlock()
 			return
 		}
-		s.finish(status.New(codes.Internal, "server closed the stream without sending trailers"))
+		s.state = streamDone
+		s.statusCode = codes.Internal
+		s.statusDesc = "server closed the stream without sending trailers"
+		close(s.done)
 		s.mu.Unlock()
 		s.write(recvMsg{err: io.EOF})
 	}
@@ -917,16 +854,18 @@ func (t *http2Client) handleRSTStream(f *http2.RSTStreamFrame) {
 		s.mu.Unlock()
 		return
 	}
+	s.state = streamDone
 	if !s.headerDone {
 		close(s.headerChan)
 		s.headerDone = true
 	}
-	statusCode, ok := http2ErrConvTab[http2.ErrCode(f.ErrCode)]
+	s.statusCode, ok = http2ErrConvTab[http2.ErrCode(f.ErrCode)]
 	if !ok {
 		grpclog.Println("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error ", f.ErrCode)
-		statusCode = codes.Unknown
+		s.statusCode = codes.Unknown
 	}
-	s.finish(status.Newf(statusCode, "stream terminated by RST_STREAM with error code: %d", f.ErrCode))
+	s.statusDesc = fmt.Sprintf("stream terminated by RST_STREAM with error code: %d", f.ErrCode)
+	close(s.done)
 	s.mu.Unlock()
 	s.write(recvMsg{err: io.EOF})
 }
@@ -954,9 +893,6 @@ func (t *http2Client) handlePing(f *http2.PingFrame) {
 }
 
 func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
-	if f.ErrCode == http2.ErrCodeEnhanceYourCalm {
-		grpclog.Printf("Client received GoAway with http2.ErrCodeEnhanceYourCalm.")
-	}
 	t.mu.Lock()
 	if t.state == reachable || t.state == draining {
 		if f.LastStreamID > 0 && f.LastStreamID%2 != 1 {
@@ -978,7 +914,6 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
 			t.mu.Unlock()
 			return
 		default:
-			t.setGoAwayReason(f)
 		}
 		t.goAwayID = f.LastStreamID
 		close(t.goAway)
@@ -986,26 +921,6 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
 	t.mu.Unlock()
 }
 
-// setGoAwayReason sets the value of t.goAwayReason based
-// on the GoAway frame received.
-// It expects a lock on transport's mutext to be held by
-// the caller.
-func (t *http2Client) setGoAwayReason(f *http2.GoAwayFrame) {
-	t.goAwayReason = NoReason
-	switch f.ErrCode {
-	case http2.ErrCodeEnhanceYourCalm:
-		if string(f.DebugData()) == "too_many_pings" {
-			t.goAwayReason = TooManyPings
-		}
-	}
-}
-
-func (t *http2Client) GetGoAwayReason() GoAwayReason {
-	t.mu.Lock()
-	defer t.mu.Unlock()
-	return t.goAwayReason
-}
-
 func (t *http2Client) handleWindowUpdate(f *http2.WindowUpdateFrame) {
 	id := f.Header().StreamID
 	incr := f.Increment
@@ -1024,16 +939,18 @@ func (t *http2Client) operateHeaders(frame *http2.MetaHeadersFrame) {
 	if !ok {
 		return
 	}
-	s.bytesReceived = true
 	var state decodeState
-	if err := state.decodeResponseHeader(frame); err != nil {
+	for _, hf := range frame.Fields {
+		state.processHeaderField(hf)
+	}
+	if state.err != nil {
 		s.mu.Lock()
 		if !s.headerDone {
 			close(s.headerChan)
 			s.headerDone = true
 		}
 		s.mu.Unlock()
-		s.write(recvMsg{err: err})
+		s.write(recvMsg{err: state.err})
 		// Something wrong. Stops reading even when there is remaining.
 		return
 	}
@@ -1047,13 +964,13 @@ func (t *http2Client) operateHeaders(frame *http2.MetaHeadersFrame) {
 					Client:     true,
 					WireLength: int(frame.Header().Length),
 				}
-				t.statsHandler.HandleRPC(s.ctx, inHeader)
+				t.statsHandler.HandleRPC(s.clientStatsCtx, inHeader)
 			} else {
 				inTrailer := &stats.InTrailer{
 					Client:     true,
 					WireLength: int(frame.Header().Length),
 				}
-				t.statsHandler.HandleRPC(s.ctx, inTrailer)
+				t.statsHandler.HandleRPC(s.clientStatsCtx, inTrailer)
 			}
 		}
 	}()
@@ -1078,7 +995,10 @@ func (t *http2Client) operateHeaders(frame *http2.MetaHeadersFrame) {
 	if len(state.mdata) > 0 {
 		s.trailer = state.mdata
 	}
-	s.finish(state.status())
+	s.statusCode = state.statusCode
+	s.statusDesc = state.statusDesc
+	close(s.done)
+	s.state = streamDone
 	s.mu.Unlock()
 	s.write(recvMsg{err: io.EOF})
 }
@@ -1177,7 +1097,7 @@ func (t *http2Client) applySettings(ss []http2.Setting) {
 			t.mu.Lock()
 			for _, stream := range t.activeStreams {
 				// Adjust the sending quota for each stream.
-				stream.sendQuotaPool.add(int(s.Val) - int(t.streamSendQuota))
+				stream.sendQuotaPool.add(int(s.Val - t.streamSendQuota))
 			}
 			t.streamSendQuota = s.Val
 			t.mu.Unlock()
@@ -1196,7 +1116,7 @@ func (t *http2Client) controller() {
 			case <-t.writableChan:
 				switch i := i.(type) {
 				case *windowUpdate:
-					t.framer.writeWindowUpdate(i.flush, i.streamID, i.increment)
+					t.framer.writeWindowUpdate(true, i.streamID, i.increment)
 				case *settings:
 					if i.ack {
 						t.framer.writeSettingsAck(true)

cmd/vendor/google.golang.org/grpc/transport/http2_server.go

@@ -38,25 +38,19 @@ import (
 	"errors"
 	"io"
 	"math"
-	"math/rand"
 	"net"
 	"strconv"
 	"sync"
-	"sync/atomic"
-	"time"
 
-	"github.com/golang/protobuf/proto"
 	"golang.org/x/net/context"
 	"golang.org/x/net/http2"
 	"golang.org/x/net/http2/hpack"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/grpclog"
-	"google.golang.org/grpc/keepalive"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/peer"
 	"google.golang.org/grpc/stats"
-	"google.golang.org/grpc/status"
 	"google.golang.org/grpc/tap"
 )
 
@@ -96,35 +90,11 @@ type http2Server struct {
 
 	stats stats.Handler
 
-	// Flag to keep track of reading activity on transport.
-	// 1 is true and 0 is false.
-	activity uint32 // Accessed atomically.
-	// Keepalive and max-age parameters for the server.
-	kp keepalive.ServerParameters
-
-	// Keepalive enforcement policy.
-	kep keepalive.EnforcementPolicy
-	// The time instance last ping was received.
-	lastPingAt time.Time
-	// Number of times the client has violated keepalive ping policy so far.
-	pingStrikes uint8
-	// Flag to signify that number of ping strikes should be reset to 0.
-	// This is set whenever data or header frames are sent.
-	// 1 means yes.
-	resetPingStrikes uint32 // Accessed atomically.
-
-	initialWindowSize int32
-
 	mu            sync.Mutex // guard the following
 	state         transportState
 	activeStreams map[uint32]*Stream
 	// the per-stream outbound flow control window size set by the peer.
 	streamSendQuota uint32
-	// idle is the time instant when the connection went idle.
-	// This is either the begining of the connection or when the number of
-	// RPCs go down to 0.
-	// When the connection is busy, this value is set to 0.
-	idle time.Time
 }
 
 // newHTTP2Server constructs a ServerTransport based on HTTP2. ConnectionError is
@@ -144,50 +114,20 @@ func newHTTP2Server(conn net.Conn, config *ServerConfig) (_ ServerTransport, err
 			Val: maxStreams,
 		})
 	}
-	iwz := int32(initialWindowSize)
-	if config.InitialWindowSize >= defaultWindowSize {
-		iwz = config.InitialWindowSize
-	}
-	icwz := int32(initialConnWindowSize)
-	if config.InitialConnWindowSize >= defaultWindowSize {
-		icwz = config.InitialConnWindowSize
-	}
-	if iwz != defaultWindowSize {
+	if initialWindowSize != defaultWindowSize {
 		settings = append(settings, http2.Setting{
 			ID:  http2.SettingInitialWindowSize,
-			Val: uint32(iwz)})
+			Val: uint32(initialWindowSize)})
 	}
 	if err := framer.writeSettings(true, settings...); err != nil {
 		return nil, connectionErrorf(true, err, "transport: %v", err)
 	}
 	// Adjust the connection flow control window if needed.
-	if delta := uint32(icwz - defaultWindowSize); delta > 0 {
+	if delta := uint32(initialConnWindowSize - defaultWindowSize); delta > 0 {
 		if err := framer.writeWindowUpdate(true, 0, delta); err != nil {
 			return nil, connectionErrorf(true, err, "transport: %v", err)
 		}
 	}
-	kp := config.KeepaliveParams
-	if kp.MaxConnectionIdle == 0 {
-		kp.MaxConnectionIdle = defaultMaxConnectionIdle
-	}
-	if kp.MaxConnectionAge == 0 {
-		kp.MaxConnectionAge = defaultMaxConnectionAge
-	}
-	// Add a jitter to MaxConnectionAge.
-	kp.MaxConnectionAge += getJitter(kp.MaxConnectionAge)
-	if kp.MaxConnectionAgeGrace == 0 {
-		kp.MaxConnectionAgeGrace = defaultMaxConnectionAgeGrace
-	}
-	if kp.Time == 0 {
-		kp.Time = defaultServerKeepaliveTime
-	}
-	if kp.Timeout == 0 {
-		kp.Timeout = defaultServerKeepaliveTimeout
-	}
-	kep := config.KeepalivePolicy
-	if kep.MinTime == 0 {
-		kep.MinTime = defaultKeepalivePolicyMinTime
-	}
 	var buf bytes.Buffer
 	t := &http2Server{
 		ctx:             context.Background(),
@@ -201,7 +141,7 @@ func newHTTP2Server(conn net.Conn, config *ServerConfig) (_ ServerTransport, err
 		maxStreams:      maxStreams,
 		inTapHandle:     config.InTapHandle,
 		controlBuf:      newRecvBuffer(),
-		fc:                &inFlow{limit: uint32(icwz)},
+		fc:              &inFlow{limit: initialConnWindowSize},
 		sendQuotaPool:   newQuotaPool(defaultWindowSize),
 		state:           reachable,
 		writableChan:    make(chan int, 1),
@@ -209,10 +149,6 @@ func newHTTP2Server(conn net.Conn, config *ServerConfig) (_ ServerTransport, err
 		activeStreams:   make(map[uint32]*Stream),
 		streamSendQuota: defaultWindowSize,
 		stats:           config.StatsHandler,
-		kp:                kp,
-		idle:              time.Now(),
-		kep:               kep,
-		initialWindowSize: iwz,
 	}
 	if t.stats != nil {
 		t.ctx = t.stats.TagConn(t.ctx, &stats.ConnTagInfo{
@@ -223,7 +159,6 @@ func newHTTP2Server(conn net.Conn, config *ServerConfig) (_ ServerTransport, err
 		t.stats.HandleConn(t.ctx, connBegin)
 	}
 	go t.controller()
-	go t.keepalive()
 	t.writableChan <- 0
 	return t, nil
 }
@@ -235,18 +170,19 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 		id:  frame.Header().StreamID,
 		st:  t,
 		buf: buf,
-		fc:  &inFlow{limit: uint32(t.initialWindowSize)},
+		fc:  &inFlow{limit: initialWindowSize},
 	}
 
 	var state decodeState
 	for _, hf := range frame.Fields {
-		if err := state.processHeaderField(hf); err != nil {
+		state.processHeaderField(hf)
+	}
+	if err := state.err; err != nil {
 		if se, ok := err.(StreamError); ok {
 			t.controlBuf.put(&resetStream{s.id, statusCodeConvTab[se.Code]})
 		}
 		return
 	}
-	}
 
 	if frame.StreamEnded() {
 		// s is just created by the caller. No lock needed.
@@ -272,16 +208,12 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 	s.ctx = newContextWithStream(s.ctx, s)
 	// Attach the received metadata to the context.
 	if len(state.mdata) > 0 {
-		s.ctx = metadata.NewIncomingContext(s.ctx, state.mdata)
+		s.ctx = metadata.NewContext(s.ctx, state.mdata)
 	}
-	s.trReader = &transportReader{
-		reader: &recvBufferReader{
+
+	s.dec = &recvBufferReader{
 		ctx:  s.ctx,
 		recv: s.buf,
-		},
-		windowHandler: func(n int) {
-			t.updateWindow(s, uint32(n))
-		},
 	}
 	s.recvCompress = state.encoding
 	s.method = state.method
@@ -292,7 +224,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 		}
 		s.ctx, err = t.inTapHandle(s.ctx, info)
 		if err != nil {
-			grpclog.Printf("transport: http2Server.operateHeaders got an error from InTapHandle: %v", err)
+			// TODO: Log the real error.
 			t.controlBuf.put(&resetStream{s.id, http2.ErrCodeRefusedStream})
 			return
 		}
@@ -316,12 +248,9 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 	t.maxStreamID = s.id
 	s.sendQuotaPool = newQuotaPool(int(t.streamSendQuota))
 	t.activeStreams[s.id] = s
-	if len(t.activeStreams) == 1 {
-		t.idle = time.Time{}
-	}
 	t.mu.Unlock()
-	s.requestRead = func(n int) {
-		t.adjustWindow(s, uint32(n))
+	s.windowHandler = func(n int) {
+		t.updateWindow(s, uint32(n))
 	}
 	s.ctx = traceCtx(s.ctx, s.method)
 	if t.stats != nil {
@@ -346,10 +275,7 @@ func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.
 	// Check the validity of client preface.
 	preface := make([]byte, len(clientPreface))
 	if _, err := io.ReadFull(t.conn, preface); err != nil {
-		// Only log if it isn't a simple tcp accept check (ie: tcp balancer doing open/close socket)
-		if err != io.EOF {
 		grpclog.Printf("transport: http2Server.HandleStreams failed to receive the preface from client: %v", err)
-		}
 		t.Close()
 		return
 	}
@@ -365,11 +291,10 @@ func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.
 		return
 	}
 	if err != nil {
-		grpclog.Printf("transport: http2Server.HandleStreams failed to read initial settings frame: %v", err)
+		grpclog.Printf("transport: http2Server.HandleStreams failed to read frame: %v", err)
 		t.Close()
 		return
 	}
-	atomic.StoreUint32(&t.activity, 1)
 	sf, ok := frame.(*http2.SettingsFrame)
 	if !ok {
 		grpclog.Printf("transport: http2Server.HandleStreams saw invalid preface type %T from client", frame)
@@ -380,7 +305,6 @@ func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.
 
 	for {
 		frame, err := t.framer.readFrame()
-		atomic.StoreUint32(&t.activity, 1)
 		if err != nil {
 			if se, ok := err.(http2.StreamError); ok {
 				t.mu.Lock()
@@ -439,23 +363,6 @@ func (t *http2Server) getStream(f http2.Frame) (*Stream, bool) {
 	return s, true
 }
 
-// adjustWindow sends out extra window update over the initial window size
-// of stream if the application is requesting data larger in size than
-// the window.
-func (t *http2Server) adjustWindow(s *Stream, n uint32) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	if s.state == streamDone {
-		return
-	}
-	if w := s.fc.maybeAdjust(n); w > 0 {
-		if cw := t.fc.resetPendingUpdate(); cw > 0 {
-			t.controlBuf.put(&windowUpdate{0, cw, false})
-		}
-		t.controlBuf.put(&windowUpdate{s.id, w, true})
-	}
-}
-
 // updateWindow adjusts the inbound quota for the stream and the transport.
 // Window updates will deliver to the controller for sending when
 // the cumulative quota exceeds the corresponding threshold.
@@ -465,11 +372,11 @@ func (t *http2Server) updateWindow(s *Stream, n uint32) {
 	if s.state == streamDone {
 		return
 	}
-	if w := s.fc.onRead(n); w > 0 {
-		if cw := t.fc.resetPendingUpdate(); cw > 0 {
-			t.controlBuf.put(&windowUpdate{0, cw, false})
+	if w := t.fc.onRead(n); w > 0 {
+		t.controlBuf.put(&windowUpdate{0, w})
 	}
-		t.controlBuf.put(&windowUpdate{s.id, w, true})
+	if w := s.fc.onRead(n); w > 0 {
+		t.controlBuf.put(&windowUpdate{s.id, w})
 	}
 }
 
@@ -480,26 +387,27 @@ func (t *http2Server) handleData(f *http2.DataFrame) {
 		t.Close()
 		return
 	}
-	// Decouple connection's flow control from application's read.
-	// An update on connection's flow control should not depend on
-	// whether user application has read the data or not. Such a
-	// restriction is already imposed on the stream's flow control,
-	// and therefore the sender will be blocked anyways.
-	// Decoupling the connection flow control will prevent other
-	// active(fast) streams from starving in presence of slow or
-	// inactive streams.
-	if w := t.fc.onRead(uint32(size)); w > 0 {
-		t.controlBuf.put(&windowUpdate{0, w, true})
-	}
 	// Select the right stream to dispatch.
 	s, ok := t.getStream(f)
 	if !ok {
+		if w := t.fc.onRead(uint32(size)); w > 0 {
+			t.controlBuf.put(&windowUpdate{0, w})
+		}
 		return
 	}
 	if size > 0 {
+		if f.Header().Flags.Has(http2.FlagDataPadded) {
+			if w := t.fc.onRead(uint32(size) - uint32(len(f.Data()))); w > 0 {
+				t.controlBuf.put(&windowUpdate{0, w})
+			}
+		}
 		s.mu.Lock()
 		if s.state == streamDone {
 			s.mu.Unlock()
+			// The stream has been closed. Release the corresponding quota.
+			if w := t.fc.onRead(uint32(size)); w > 0 {
+				t.controlBuf.put(&windowUpdate{0, w})
+			}
 			return
 		}
 		if err := s.fc.onData(uint32(size)); err != nil {
@@ -510,7 +418,7 @@ func (t *http2Server) handleData(f *http2.DataFrame) {
 		}
 		if f.Header().Flags.Has(http2.FlagDataPadded) {
 			if w := s.fc.onRead(uint32(size) - uint32(len(f.Data()))); w > 0 {
-				t.controlBuf.put(&windowUpdate{s.id, w, true})
+				t.controlBuf.put(&windowUpdate{s.id, w})
 			}
 		}
 		s.mu.Unlock()
@@ -555,11 +463,6 @@ func (t *http2Server) handleSettings(f *http2.SettingsFrame) {
 	t.controlBuf.put(&settings{ack: true, ss: ss})
 }
 
-const (
-	maxPingStrikes     = 2
-	defaultPingTimeout = 2 * time.Hour
-)
-
 func (t *http2Server) handlePing(f *http2.PingFrame) {
 	if f.IsAck() { // Do nothing.
 		return
@@ -567,38 +470,6 @@ func (t *http2Server) handlePing(f *http2.PingFrame) {
 	pingAck := &ping{ack: true}
 	copy(pingAck.data[:], f.Data[:])
 	t.controlBuf.put(pingAck)
-
-	now := time.Now()
-	defer func() {
-		t.lastPingAt = now
-	}()
-	// A reset ping strikes means that we don't need to check for policy
-	// violation for this ping and the pingStrikes counter should be set
-	// to 0.
-	if atomic.CompareAndSwapUint32(&t.resetPingStrikes, 1, 0) {
-		t.pingStrikes = 0
-		return
-	}
-	t.mu.Lock()
-	ns := len(t.activeStreams)
-	t.mu.Unlock()
-	if ns < 1 && !t.kep.PermitWithoutStream {
-		// Keepalive shouldn't be active thus, this new ping should
-		// have come after atleast defaultPingTimeout.
-		if t.lastPingAt.Add(defaultPingTimeout).After(now) {
-			t.pingStrikes++
-		}
-	} else {
-		// Check if keepalive policy is respected.
-		if t.lastPingAt.Add(t.kep.MinTime).After(now) {
-			t.pingStrikes++
-		}
-	}
-
-	if t.pingStrikes > maxPingStrikes {
-		// Send goaway and close the connection.
-		t.controlBuf.put(&goAway{code: http2.ErrCodeEnhanceYourCalm, debugData: []byte("too_many_pings")})
-	}
 }
 
 func (t *http2Server) handleWindowUpdate(f *http2.WindowUpdateFrame) {
@@ -617,13 +488,6 @@ func (t *http2Server) writeHeaders(s *Stream, b *bytes.Buffer, endStream bool) e
 	first := true
 	endHeaders := false
 	var err error
-	defer func() {
-		if err == nil {
-			// Reset ping strikes when seding headers since that might cause the
-			// peer to send ping.
-			atomic.StoreUint32(&t.resetPingStrikes, 1)
-		}
-	}()
 	// Sends the headers in a single batch.
 	for !endHeaders {
 		size := t.hBuf.Len()
@@ -678,13 +542,13 @@ func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
 	if s.sendCompress != "" {
 		t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-encoding", Value: s.sendCompress})
 	}
-	for k, vv := range md {
+	for k, v := range md {
 		if isReservedHeader(k) {
 			// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
 			continue
 		}
-		for _, v := range vv {
-			t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
+		for _, entry := range v {
+			t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
 		}
 	}
 	bufLen := t.hBuf.Len()
@@ -705,7 +569,7 @@ func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
 // There is no further I/O operations being able to perform on this stream.
 // TODO(zhaoq): Now it indicates the end of entire stream. Revisit if early
 // OK is adopted.
-func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
+func (t *http2Server) WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error {
 	var headersSent, hasHeader bool
 	s.mu.Lock()
 	if s.state == streamDone {
@@ -736,28 +600,17 @@ func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
 	t.hEnc.WriteField(
 		hpack.HeaderField{
 			Name:  "grpc-status",
-			Value: strconv.Itoa(int(st.Code())),
+			Value: strconv.Itoa(int(statusCode)),
 		})
-	t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-message", Value: encodeGrpcMessage(st.Message())})
-
-	if p := st.Proto(); p != nil && len(p.Details) > 0 {
-		stBytes, err := proto.Marshal(p)
-		if err != nil {
-			// TODO: return error instead, when callers are able to handle it.
-			panic(err)
-		}
-
-		t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-status-details-bin", Value: encodeBinHeader(stBytes)})
-	}
-
+	t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-message", Value: encodeGrpcMessage(statusDesc)})
 	// Attach the trailer metadata.
-	for k, vv := range s.trailer {
+	for k, v := range s.trailer {
 		// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
 		if isReservedHeader(k) {
 			continue
 		}
-		for _, v := range vv {
-			t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
+		for _, entry := range v {
+			t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
 		}
 	}
 	bufLen := t.hBuf.Len()
@@ -778,7 +631,7 @@ func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
 
 // Write converts the data into HTTP2 data frame and sends it out. Non-nil error
 // is returns if it fails (e.g., framing error, transport error).
-func (t *http2Server) Write(s *Stream, data []byte, opts *Options) (err error) {
+func (t *http2Server) Write(s *Stream, data []byte, opts *Options) error {
 	// TODO(zhaoq): Support multi-writers for a single stream.
 	var writeHeaderFrame bool
 	s.mu.Lock()
@@ -793,13 +646,6 @@ func (t *http2Server) Write(s *Stream, data []byte, opts *Options) (err error) {
 	if writeHeaderFrame {
 		t.WriteHeader(s, nil)
 	}
-	defer func() {
-		if err == nil {
-			// Reset ping strikes when sending data since this might cause
-			// the peer to send ping.
-			atomic.StoreUint32(&t.resetPingStrikes, 1)
-		}
-	}()
 	r := bytes.NewBuffer(data)
 	for {
 		if r.Len() == 0 {
@@ -881,7 +727,7 @@ func (t *http2Server) applySettings(ss []http2.Setting) {
 			t.mu.Lock()
 			defer t.mu.Unlock()
 			for _, stream := range t.activeStreams {
-				stream.sendQuotaPool.add(int(s.Val) - int(t.streamSendQuota))
+				stream.sendQuotaPool.add(int(s.Val - t.streamSendQuota))
 			}
 			t.streamSendQuota = s.Val
 		}
@@ -889,91 +735,6 @@ func (t *http2Server) applySettings(ss []http2.Setting) {
 	}
 }
 
-// keepalive running in a separate goroutine does the following:
-// 1. Gracefully closes an idle connection after a duration of keepalive.MaxConnectionIdle.
-// 2. Gracefully closes any connection after a duration of keepalive.MaxConnectionAge.
-// 3. Forcibly closes a connection after an additive period of keepalive.MaxConnectionAgeGrace over keepalive.MaxConnectionAge.
-// 4. Makes sure a connection is alive by sending pings with a frequency of keepalive.Time and closes a non-resposive connection
-// after an additional duration of keepalive.Timeout.
-func (t *http2Server) keepalive() {
-	p := &ping{}
-	var pingSent bool
-	maxIdle := time.NewTimer(t.kp.MaxConnectionIdle)
-	maxAge := time.NewTimer(t.kp.MaxConnectionAge)
-	keepalive := time.NewTimer(t.kp.Time)
-	// NOTE: All exit paths of this function should reset their
-	// respecitve timers. A failure to do so will cause the
-	// following clean-up to deadlock and eventually leak.
-	defer func() {
-		if !maxIdle.Stop() {
-			<-maxIdle.C
-		}
-		if !maxAge.Stop() {
-			<-maxAge.C
-		}
-		if !keepalive.Stop() {
-			<-keepalive.C
-		}
-	}()
-	for {
-		select {
-		case <-maxIdle.C:
-			t.mu.Lock()
-			idle := t.idle
-			if idle.IsZero() { // The connection is non-idle.
-				t.mu.Unlock()
-				maxIdle.Reset(t.kp.MaxConnectionIdle)
-				continue
-			}
-			val := t.kp.MaxConnectionIdle - time.Since(idle)
-			if val <= 0 {
-				// The connection has been idle for a duration of keepalive.MaxConnectionIdle or more.
-				// Gracefully close the connection.
-				t.state = draining
-				t.mu.Unlock()
-				t.Drain()
-				// Reseting the timer so that the clean-up doesn't deadlock.
-				maxIdle.Reset(infinity)
-				return
-			}
-			t.mu.Unlock()
-			maxIdle.Reset(val)
-		case <-maxAge.C:
-			t.mu.Lock()
-			t.state = draining
-			t.mu.Unlock()
-			t.Drain()
-			maxAge.Reset(t.kp.MaxConnectionAgeGrace)
-			select {
-			case <-maxAge.C:
-				// Close the connection after grace period.
-				t.Close()
-				// Reseting the timer so that the clean-up doesn't deadlock.
-				maxAge.Reset(infinity)
-			case <-t.shutdownChan:
-			}
-			return
-		case <-keepalive.C:
-			if atomic.CompareAndSwapUint32(&t.activity, 1, 0) {
-				pingSent = false
-				keepalive.Reset(t.kp.Time)
-				continue
-			}
-			if pingSent {
-				t.Close()
-				// Reseting the timer so that the clean-up doesn't deadlock.
-				keepalive.Reset(infinity)
-				return
-			}
-			pingSent = true
-			t.controlBuf.put(p)
-			keepalive.Reset(t.kp.Timeout)
-		case <-t.shutdownChan:
-			return
-		}
-	}
-}
-
 // controller running in a separate goroutine takes charge of sending control
 // frames (e.g., window update, reset stream, setting, etc.) to the server.
 func (t *http2Server) controller() {
@@ -985,7 +746,7 @@ func (t *http2Server) controller() {
 			case <-t.writableChan:
 				switch i := i.(type) {
 				case *windowUpdate:
-					t.framer.writeWindowUpdate(i.flush, i.streamID, i.increment)
+					t.framer.writeWindowUpdate(true, i.streamID, i.increment)
 				case *settings:
 					if i.ack {
 						t.framer.writeSettingsAck(true)
@@ -1005,10 +766,7 @@ func (t *http2Server) controller() {
 					sid := t.maxStreamID
 					t.state = draining
 					t.mu.Unlock()
-					t.framer.writeGoAway(true, sid, i.code, i.debugData)
-					if i.code == http2.ErrCodeEnhanceYourCalm {
-						t.Close()
-					}
+					t.framer.writeGoAway(true, sid, http2.ErrCodeNo, nil)
 				case *flushIO:
 					t.framer.flushWrite()
 				case *ping:
@@ -1058,9 +816,6 @@ func (t *http2Server) Close() (err error) {
 func (t *http2Server) closeStream(s *Stream) {
 	t.mu.Lock()
 	delete(t.activeStreams, s.id)
-	if len(t.activeStreams) == 0 {
-		t.idle = time.Now()
-	}
 	if t.state == draining && len(t.activeStreams) == 0 {
 		defer t.Close()
 	}
@@ -1070,6 +825,11 @@ func (t *http2Server) closeStream(s *Stream) {
 	// called to interrupt the potential blocking on other goroutines.
 	s.cancel()
 	s.mu.Lock()
+	if q := s.fc.resetPendingData(); q > 0 {
+		if w := t.fc.onRead(q); w > 0 {
+			t.controlBuf.put(&windowUpdate{0, w})
+		}
+	}
 	if s.state == streamDone {
 		s.mu.Unlock()
 		return
@@ -1083,17 +843,5 @@ func (t *http2Server) RemoteAddr() net.Addr {
 }
 
 func (t *http2Server) Drain() {
-	t.controlBuf.put(&goAway{code: http2.ErrCodeNo})
-}
-
-var rgen = rand.New(rand.NewSource(time.Now().UnixNano()))
-
-func getJitter(v time.Duration) time.Duration {
-	if v == infinity {
-		return 0
-	}
-	// Generate a jitter between +/- 10% of the value.
-	r := int64(v / 10)
-	j := rgen.Int63n(2*r) - r
-	return time.Duration(j)
+	t.controlBuf.put(&goAway{})
 }

cmd/vendor/google.golang.org/grpc/transport/http_util.go

@@ -36,23 +36,19 @@ package transport
 import (
 	"bufio"
 	"bytes"
-	"encoding/base64"
 	"fmt"
 	"io"
 	"net"
-	"net/http"
 	"strconv"
 	"strings"
 	"sync/atomic"
 	"time"
 
-	"github.com/golang/protobuf/proto"
 	"golang.org/x/net/http2"
 	"golang.org/x/net/http2/hpack"
-	spb "google.golang.org/genproto/googleapis/rpc/status"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/grpclog"
-	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/metadata"
 )
 
 const (
@@ -89,39 +85,18 @@ var (
 		codes.ResourceExhausted: http2.ErrCodeEnhanceYourCalm,
 		codes.PermissionDenied:  http2.ErrCodeInadequateSecurity,
 	}
-	httpStatusConvTab = map[int]codes.Code{
-		// 400 Bad Request - INTERNAL.
-		http.StatusBadRequest: codes.Internal,
-		// 401 Unauthorized  - UNAUTHENTICATED.
-		http.StatusUnauthorized: codes.Unauthenticated,
-		// 403 Forbidden - PERMISSION_DENIED.
-		http.StatusForbidden: codes.PermissionDenied,
-		// 404 Not Found - UNIMPLEMENTED.
-		http.StatusNotFound: codes.Unimplemented,
-		// 429 Too Many Requests - UNAVAILABLE.
-		http.StatusTooManyRequests: codes.Unavailable,
-		// 502 Bad Gateway - UNAVAILABLE.
-		http.StatusBadGateway: codes.Unavailable,
-		// 503 Service Unavailable - UNAVAILABLE.
-		http.StatusServiceUnavailable: codes.Unavailable,
-		// 504 Gateway timeout - UNAVAILABLE.
-		http.StatusGatewayTimeout: codes.Unavailable,
-	}
 )
 
 // Records the states during HPACK decoding. Must be reset once the
 // decoding of the entire headers are finished.
 type decodeState struct {
+	err error // first error encountered decoding
+
 	encoding string
-	// statusGen caches the stream status received from the trailer the server
-	// sent.  Client side only.  Do not access directly.  After all trailers are
-	// parsed, use the status method to retrieve the status.
-	statusGen *status.Status
-	// rawStatusCode and rawStatusMsg are set from the raw trailer fields and are not
-	// intended for direct access outside of parsing.
-	rawStatusCode *int
-	rawStatusMsg  string
-	httpStatus    *int
+	// statusCode caches the stream status received from the trailer
+	// the server sent. Client side only.
+	statusCode codes.Code
+	statusDesc string
 	// Server side only fields.
 	timeoutSet bool
 	timeout    time.Duration
@@ -144,7 +119,6 @@ func isReservedHeader(hdr string) bool {
 		"grpc-message",
 		"grpc-status",
 		"grpc-timeout",
-		"grpc-status-details-bin",
 		"te":
 		return true
 	default:
@@ -163,6 +137,12 @@ func isWhitelistedPseudoHeader(hdr string) bool {
 	}
 }
 
+func (d *decodeState) setErr(err error) {
+	if d.err == nil {
+		d.err = err
+	}
+}
+
 func validContentType(t string) bool {
 	e := "application/grpc"
 	if !strings.HasPrefix(t, e) {
@@ -176,135 +156,56 @@ func validContentType(t string) bool {
 	return true
 }
 
-func (d *decodeState) status() *status.Status {
-	if d.statusGen == nil {
-		// No status-details were provided; generate status using code/msg.
-		d.statusGen = status.New(codes.Code(int32(*(d.rawStatusCode))), d.rawStatusMsg)
-	}
-	return d.statusGen
-}
-
-const binHdrSuffix = "-bin"
-
-func encodeBinHeader(v []byte) string {
-	return base64.RawStdEncoding.EncodeToString(v)
-}
-
-func decodeBinHeader(v string) ([]byte, error) {
-	if len(v)%4 == 0 {
-		// Input was padded, or padding was not necessary.
-		return base64.StdEncoding.DecodeString(v)
-	}
-	return base64.RawStdEncoding.DecodeString(v)
-}
-
-func encodeMetadataHeader(k, v string) string {
-	if strings.HasSuffix(k, binHdrSuffix) {
-		return encodeBinHeader(([]byte)(v))
-	}
-	return v
-}
-
-func decodeMetadataHeader(k, v string) (string, error) {
-	if strings.HasSuffix(k, binHdrSuffix) {
-		b, err := decodeBinHeader(v)
-		return string(b), err
-	}
-	return v, nil
-}
-
-func (d *decodeState) decodeResponseHeader(frame *http2.MetaHeadersFrame) error {
-	for _, hf := range frame.Fields {
-		if err := d.processHeaderField(hf); err != nil {
-			return err
-		}
-	}
-
-	// If grpc status exists, no need to check further.
-	if d.rawStatusCode != nil || d.statusGen != nil {
-		return nil
-	}
-
-	// If grpc status doesn't exist and http status doesn't exist,
-	// then it's a malformed header.
-	if d.httpStatus == nil {
-		return streamErrorf(codes.Internal, "malformed header: doesn't contain status(gRPC or HTTP)")
-	}
-
-	if *(d.httpStatus) != http.StatusOK {
-		code, ok := httpStatusConvTab[*(d.httpStatus)]
-		if !ok {
-			code = codes.Unknown
-		}
-		return streamErrorf(code, http.StatusText(*(d.httpStatus)))
-	}
-
-	// gRPC status doesn't exist and http status is OK.
-	// Set rawStatusCode to be unknown and return nil error.
-	// So that, if the stream has ended this Unknown status
-	// will be propogated to the user.
-	// Otherwise, it will be ignored. In which case, status from
-	// a later trailer, that has StreamEnded flag set, is propogated.
-	code := int(codes.Unknown)
-	d.rawStatusCode = &code
-	return nil
-
-}
-
-func (d *decodeState) processHeaderField(f hpack.HeaderField) error {
+func (d *decodeState) processHeaderField(f hpack.HeaderField) {
 	switch f.Name {
 	case "content-type":
 		if !validContentType(f.Value) {
-			return streamErrorf(codes.FailedPrecondition, "transport: received the unexpected content-type %q", f.Value)
+			d.setErr(streamErrorf(codes.FailedPrecondition, "transport: received the unexpected content-type %q", f.Value))
+			return
 		}
 	case "grpc-encoding":
 		d.encoding = f.Value
 	case "grpc-status":
 		code, err := strconv.Atoi(f.Value)
 		if err != nil {
-			return streamErrorf(codes.Internal, "transport: malformed grpc-status: %v", err)
+			d.setErr(streamErrorf(codes.Internal, "transport: malformed grpc-status: %v", err))
+			return
 		}
-		d.rawStatusCode = &code
+		d.statusCode = codes.Code(code)
 	case "grpc-message":
-		d.rawStatusMsg = decodeGrpcMessage(f.Value)
-	case "grpc-status-details-bin":
-		v, err := decodeBinHeader(f.Value)
-		if err != nil {
-			return streamErrorf(codes.Internal, "transport: malformed grpc-status-details-bin: %v", err)
-		}
-		s := &spb.Status{}
-		if err := proto.Unmarshal(v, s); err != nil {
-			return streamErrorf(codes.Internal, "transport: malformed grpc-status-details-bin: %v", err)
-		}
-		d.statusGen = status.FromProto(s)
+		d.statusDesc = decodeGrpcMessage(f.Value)
 	case "grpc-timeout":
 		d.timeoutSet = true
 		var err error
-		if d.timeout, err = decodeTimeout(f.Value); err != nil {
-			return streamErrorf(codes.Internal, "transport: malformed time-out: %v", err)
+		d.timeout, err = decodeTimeout(f.Value)
+		if err != nil {
+			d.setErr(streamErrorf(codes.Internal, "transport: malformed time-out: %v", err))
+			return
 		}
 	case ":path":
 		d.method = f.Value
-	case ":status":
-		code, err := strconv.Atoi(f.Value)
-		if err != nil {
-			return streamErrorf(codes.Internal, "transport: malformed http-status: %v", err)
-		}
-		d.httpStatus = &code
 	default:
 		if !isReservedHeader(f.Name) || isWhitelistedPseudoHeader(f.Name) {
+			if f.Name == "user-agent" {
+				i := strings.LastIndex(f.Value, " ")
+				if i == -1 {
+					// There is no application user agent string being set.
+					return
+				}
+				// Extract the application user agent string.
+				f.Value = f.Value[:i]
+			}
 			if d.mdata == nil {
 				d.mdata = make(map[string][]string)
 			}
-			v, err := decodeMetadataHeader(f.Name, f.Value)
+			k, v, err := metadata.DecodeKeyValue(f.Name, f.Value)
 			if err != nil {
 				grpclog.Printf("Failed to decode (%q, %q): %v", f.Name, f.Value, err)
-				return nil
+				return
 			}
-			d.mdata[f.Name] = append(d.mdata[f.Name], v)
+			d.mdata[k] = append(d.mdata[k], v)
 		}
 	}
-	return nil
 }
 
 type timeoutUnit uint8
@@ -476,9 +377,6 @@ func newFramer(conn net.Conn) *framer {
 		writer: bufio.NewWriterSize(conn, http2IOBufSize),
 	}
 	f.fr = http2.NewFramer(f.writer, f.reader)
-	// Opt-in to Frame reuse API on framer to reduce garbage.
-	// Frames aren't safe to read from after a subsequent call to ReadFrame.
-	f.fr.SetReuseFrames()
 	f.fr.ReadMetaHeaders = hpack.NewDecoder(http2InitHeaderTableSize, nil)
 	return f
 }

cmd/vendor/google.golang.org/grpc/transport/pre_go16.go

@@ -0,0 +1,51 @@
+// +build !go1.6
+
+/*
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package transport
+
+import (
+	"net"
+	"time"
+
+	"golang.org/x/net/context"
+)
+
+// dialContext connects to the address on the named network.
+func dialContext(ctx context.Context, network, address string) (net.Conn, error) {
+	var dialer net.Dialer
+	if deadline, ok := ctx.Deadline(); ok {
+		dialer.Timeout = deadline.Sub(time.Now())
+	}
+	return dialer.Dial(network, address)
+}

cmd/vendor/google.golang.org/grpc/transport/transport.go

@@ -51,7 +51,6 @@ import (
 	"google.golang.org/grpc/keepalive"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/stats"
-	"google.golang.org/grpc/status"
 	"google.golang.org/grpc/tap"
 )
 
@@ -105,7 +104,6 @@ func (b *recvBuffer) load() {
 	if len(b.backlog) > 0 {
 		select {
 		case b.c <- b.backlog[0]:
-			b.backlog[0] = nil
 			b.backlog = b.backlog[1:]
 		default:
 		}
@@ -172,6 +170,11 @@ type Stream struct {
 	id uint32
 	// nil for client side Stream.
 	st ServerTransport
+	// clientStatsCtx keeps the user context for stats handling.
+	// It's only valid on client side. Server side stats context is same as s.ctx.
+	// All client side stats collection should use the clientStatsCtx (instead of the stream context)
+	// so that all the generated stats for a particular RPC can be associated in the processing phase.
+	clientStatsCtx context.Context
 	// ctx is the associated context of the stream.
 	ctx context.Context
 	// cancel is always nil for client side Stream.
@@ -185,17 +188,14 @@ type Stream struct {
 	recvCompress string
 	sendCompress string
 	buf          *recvBuffer
-	trReader     io.Reader
+	dec          io.Reader
 	fc           *inFlow
 	recvQuota    uint32
-
-	// TODO: Remote this unused variable.
 	// The accumulated inbound quota pending for window update.
 	updateQuota uint32
-
-	// Callback to state application's intentions to read data. This
-	// is used to adjust flow control, if need be.
-	requestRead func(int)
+	// The handler to control the window update procedure for both this
+	// particular stream and the associated transport.
+	windowHandler func(int)
 
 	sendQuotaPool *quotaPool
 	// Close headerChan to indicate the end of reception of header metadata.
@@ -212,17 +212,14 @@ type Stream struct {
 	// true iff headerChan is closed. Used to avoid closing headerChan
 	// multiple times.
 	headerDone bool
-	// the status error received from the server.
-	status *status.Status
+	// the status received from the server.
+	statusCode codes.Code
+	statusDesc string
 	// rstStream indicates whether a RST_STREAM frame needs to be sent
 	// to the server to signify that this stream is closing.
 	rstStream bool
 	// rstError is the error that needs to be sent along with the RST_STREAM frame.
 	rstError http2.ErrCode
-	// bytesSent and bytesReceived indicates whether any bytes have been sent or
-	// received on this stream.
-	bytesSent     bool
-	bytesReceived bool
 }
 
 // RecvCompress returns the compression algorithm applied to the inbound
@@ -250,7 +247,7 @@ func (s *Stream) GoAway() <-chan struct{} {
 
 // Header acquires the key-value pairs of header metadata once it
 // is available. It blocks until i) the metadata is ready or ii) there is no
-// header metadata or iii) the stream is canceled/expired.
+// header metadata or iii) the stream is cancelled/expired.
 func (s *Stream) Header() (metadata.MD, error) {
 	select {
 	case <-s.ctx.Done():
@@ -287,9 +284,14 @@ func (s *Stream) Method() string {
 	return s.method
 }
 
-// Status returns the status received from the server.
-func (s *Stream) Status() *status.Status {
-	return s.status
+// StatusCode returns statusCode received from the server.
+func (s *Stream) StatusCode() codes.Code {
+	return s.statusCode
+}
+
+// StatusDesc returns statusDesc received from the server.
+func (s *Stream) StatusDesc() string {
+	return s.statusDesc
 }
 
 // SetHeader sets the header metadata. This can be called multiple times.
@@ -323,60 +325,19 @@ func (s *Stream) write(m recvMsg) {
 	s.buf.put(&m)
 }
 
-// Read reads all p bytes from the wire for this stream.
-func (s *Stream) Read(p []byte) (n int, err error) {
-	// Don't request a read if there was an error earlier
-	if er := s.trReader.(*transportReader).er; er != nil {
-		return 0, er
-	}
-	s.requestRead(len(p))
-	return io.ReadFull(s.trReader, p)
-}
-
-// tranportReader reads all the data available for this Stream from the transport and
+// Read reads all the data available for this Stream from the transport and
 // passes them into the decoder, which converts them into a gRPC message stream.
 // The error is io.EOF when the stream is done or another non-nil error if
 // the stream broke.
-type transportReader struct {
-	reader io.Reader
-	// The handler to control the window update procedure for both this
-	// particular stream and the associated transport.
-	windowHandler func(int)
-	er            error
-}
-
-func (t *transportReader) Read(p []byte) (n int, err error) {
-	n, err = t.reader.Read(p)
+func (s *Stream) Read(p []byte) (n int, err error) {
+	n, err = s.dec.Read(p)
 	if err != nil {
-		t.er = err
 		return
 	}
-	t.windowHandler(n)
+	s.windowHandler(n)
 	return
 }
 
-// finish sets the stream's state and status, and closes the done channel.
-// s.mu must be held by the caller.  st must always be non-nil.
-func (s *Stream) finish(st *status.Status) {
-	s.status = st
-	s.state = streamDone
-	close(s.done)
-}
-
-// BytesSent indicates whether any bytes have been sent on this stream.
-func (s *Stream) BytesSent() bool {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.bytesSent
-}
-
-// BytesReceived indicates whether any bytes have been received on this stream.
-func (s *Stream) BytesReceived() bool {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.bytesReceived
-}
-
 // GoString is implemented by Stream so context.String() won't
 // race when printing %#v.
 func (s *Stream) GoString() string {
@@ -414,10 +375,6 @@ type ServerConfig struct {
 	AuthInfo     credentials.AuthInfo
 	InTapHandle  tap.ServerInHandle
 	StatsHandler stats.Handler
-	KeepaliveParams       keepalive.ServerParameters
-	KeepalivePolicy       keepalive.EnforcementPolicy
-	InitialWindowSize     int32
-	InitialConnWindowSize int32
 }
 
 // NewServerTransport creates a ServerTransport with conn or non-nil error
@@ -445,10 +402,6 @@ type ConnectOptions struct {
 	KeepaliveParams keepalive.ClientParameters
 	// StatsHandler stores the handler for stats.
 	StatsHandler stats.Handler
-	// InitialWindowSize sets the intial window size for a stream.
-	InitialWindowSize int32
-	// InitialConnWindowSize sets the intial window size for a connection.
-	InitialConnWindowSize int32
 }
 
 // TargetInfo contains the information of the target such as network address and metadata.
@@ -492,9 +445,6 @@ type CallHdr struct {
 	// outbound message.
 	SendCompress string
 
-	// Creds specifies credentials.PerRPCCredentials for a call.
-	Creds credentials.PerRPCCredentials
-
 	// Flush indicates whether a new stream command should be sent
 	// to the peer without waiting for the first data. This is
 	// only a hint. The transport may modify the flush decision
@@ -534,13 +484,10 @@ type ClientTransport interface {
 	// once the transport is initiated.
 	Error() <-chan struct{}
 
-	// GoAway returns a channel that is closed when ClientTransport
+	// GoAway returns a channel that is closed when ClientTranspor
 	// receives the draining signal from the server (e.g., GOAWAY frame in
 	// HTTP/2).
 	GoAway() <-chan struct{}
-
-	// GetGoAwayReason returns the reason why GoAway frame was received.
-	GetGoAwayReason() GoAwayReason
 }
 
 // ServerTransport is the common interface for all gRPC server-side transport
@@ -560,9 +507,10 @@ type ServerTransport interface {
 	// Write may not be called on all streams.
 	Write(s *Stream, data []byte, opts *Options) error
 
-	// WriteStatus sends the status of a stream to the client.  WriteStatus is
-	// the final call made on a stream and always occurs.
-	WriteStatus(s *Stream, st *status.Status) error
+	// WriteStatus sends the status of a stream to the client.
+	// WriteStatus is the final call made on a stream and always
+	// occurs.
+	WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error
 
 	// Close tears down the transport. Once it is called, the transport
 	// should not be accessed any more. All the pending streams and their
@@ -628,8 +576,6 @@ var (
 	ErrStreamDrain = streamErrorf(codes.Unavailable, "the server stops accepting new RPCs")
 )
 
-// TODO: See if we can replace StreamError with status package errors.
-
 // StreamError is an error that only affects one stream within a connection.
 type StreamError struct {
 	Code codes.Code
@@ -640,6 +586,17 @@ func (e StreamError) Error() string {
 	return fmt.Sprintf("stream error: code = %s desc = %q", e.Code, e.Desc)
 }
 
+// ContextErr converts the error from context package into a StreamError.
+func ContextErr(err error) StreamError {
+	switch err {
+	case context.DeadlineExceeded:
+		return streamErrorf(codes.DeadlineExceeded, "%v", err)
+	case context.Canceled:
+		return streamErrorf(codes.Canceled, "%v", err)
+	}
+	panic(fmt.Sprintf("Unexpected error from context packet: %v", err))
+}
+
 // wait blocks until it can receive from ctx.Done, closing, or proceed.
 // If it receives from ctx.Done, it returns 0, the StreamError for ctx.Err.
 // If it receives from done, it returns 0, io.EOF if ctx is not done; otherwise
@@ -667,16 +624,3 @@ func wait(ctx context.Context, done, goAway, closing <-chan struct{}, proceed <-
 		return i, nil
 	}
 }
-
-// GoAwayReason contains the reason for the GoAway frame received.
-type GoAwayReason uint8
-
-const (
-	// Invalid indicates that no GoAway frame is received.
-	Invalid GoAwayReason = 0
-	// NoReason is the default value when GoAway frame is received.
-	NoReason GoAwayReason = 1
-	// TooManyPings indicates that a GoAway frame with ErrCodeEnhanceYourCalm
-	// was recieved and that the debug data said "too_many_pings".
-	TooManyPings GoAwayReason = 2
-)

contrib/raftexample/raft.go

@@ -107,9 +107,9 @@ func newRaftNode(id int, peers []string, join bool, getSnapshot func() ([]byte,
 }
 
 func (rc *raftNode) saveSnap(snap raftpb.Snapshot) error {
-	// must save the snapshot index to the WAL before saving the
-	// snapshot to maintain the invariant that we only Open the
-	// wal at previously-saved snapshot indexes.
+	if err := rc.snapshotter.SaveSnap(snap); err != nil {
+		return err
+	}
 	walSnap := walpb.Snapshot{
 		Index: snap.Metadata.Index,
 		Term:  snap.Metadata.Term,
@@ -117,9 +117,6 @@ func (rc *raftNode) saveSnap(snap raftpb.Snapshot) error {
 	if err := rc.wal.SaveSnapshot(walSnap); err != nil {
 		return err
 	}
-	if err := rc.snapshotter.SaveSnap(snap); err != nil {
-		return err
-	}
 	return rc.wal.ReleaseLockTo(snap.Metadata.Index)
 }
 

e2e/ctl_v2_test.go

@@ -163,7 +163,7 @@ func TestCtlV2GetRoleUserWithProxy(t *testing.T) { testCtlV2GetRoleUser(t, &conf
 func testCtlV2GetRoleUser(t *testing.T, cfg *etcdProcessClusterConfig) {
 	defer testutil.AfterTest(t)
 
-	epc := setupEtcdctlTest(t, cfg, false)
+	epc := setupEtcdctlTest(t, cfg, true)
 	defer func() {
 		if err := epc.Close(); err != nil {
 			t.Fatalf("error closing etcd processes (%v)", err)
@@ -321,31 +321,17 @@ func TestCtlV2ClusterHealth(t *testing.T) {
 		}
 	}()
 
-	// all members available
+	// has quorum
 	if err := etcdctlClusterHealth(epc, "cluster is healthy"); err != nil {
 		t.Fatalf("cluster-health expected to be healthy (%v)", err)
 	}
 
-	// missing members, has quorum
+	// cut quorum
 	epc.procs[0].Stop()
-
-	for i := 0; i < 3; i++ {
-		err := etcdctlClusterHealth(epc, "cluster is degraded")
-		if err == nil {
-			break
-		} else if i == 2 {
-			t.Fatalf("cluster-health expected to be degraded (%v)", err)
-		}
-		// possibly no leader yet; retry
-		time.Sleep(time.Second)
-	}
-
-	// no quorum
 	epc.procs[1].Stop()
-	if err := etcdctlClusterHealth(epc, "cluster is unavailable"); err != nil {
-		t.Fatalf("cluster-health expected to be unavailable (%v)", err)
+	if err := etcdctlClusterHealth(epc, "cluster is unhealthy"); err != nil {
+		t.Fatalf("cluster-health expected to be unhealthy (%v)", err)
 	}
-
 	epc.procs[0], epc.procs[1] = nil, nil
 }
 

e2e/ctl_v3_auth_test.go

@@ -40,9 +40,6 @@ func TestCtlV3AuthInvalidMgmt(t *testing.T)      { testCtl(t, authTestInvalidMgm
 func TestCtlV3AuthFromKeyPerm(t *testing.T)      { testCtl(t, authTestFromKeyPerm) }
 func TestCtlV3AuthAndWatch(t *testing.T)         { testCtl(t, authTestWatch) }
 
-func TestCtlV3AuthRoleGet(t *testing.T)  { testCtl(t, authTestRoleGet) }
-func TestCtlV3AuthRoleList(t *testing.T) { testCtl(t, authTestRoleList) }
-
 func authEnableTest(cx ctlCtx) {
 	if err := authEnable(cx); err != nil {
 		cx.t.Fatal(err)
@@ -742,31 +739,3 @@ func authTestWatch(cx ctlCtx) {
 	}
 
 }
-
-func authTestRoleGet(cx ctlCtx) {
-	if err := authEnable(cx); err != nil {
-		cx.t.Fatal(err)
-	}
-	cx.user, cx.pass = "root", "root"
-	authSetupTestUser(cx)
-
-	expected := []string{
-		"Role test-role",
-		"KV Read:", "foo",
-		"KV Write:", "foo",
-	}
-	if err := spawnWithExpects(append(cx.PrefixArgs(), "role", "get", "test-role"), expected...); err != nil {
-		cx.t.Fatal(err)
-	}
-}
-
-func authTestRoleList(cx ctlCtx) {
-	if err := authEnable(cx); err != nil {
-		cx.t.Fatal(err)
-	}
-	cx.user, cx.pass = "root", "root"
-	authSetupTestUser(cx)
-	if err := spawnWithExpect(append(cx.PrefixArgs(), "role", "list"), "test-role"); err != nil {
-		cx.t.Fatal(err)
-	}
-}

e2e/etcd_spawn_cov.go

@@ -56,8 +56,7 @@ func spawnCmd(args []string) (*expect.ExpectProcess, error) {
 		}
 		// avoid test flag conflicts in coverage enabled etcdctl by putting flags in ETCDCTL_ARGS
 		ctl_cov_env := []string{
-			// was \xff, but that's used for testing boundary conditions; 0xe7cd should be safe
-			"ETCDCTL_ARGS=" + strings.Join(args, "\xe7\xcd"),
+			"ETCDCTL_ARGS" + "=" + strings.Join(args, "\xff"),
 		}
 		// when withFlagByEnv() is used in testCtl(), env variables for ctl is set to os.env.
 		// they must be included in ctl_cov_env.

e2e/v2_curl_test.go

@@ -127,7 +127,6 @@ type cURLReq struct {
 
 	value    string
 	expected string
-	header   string
 }
 
 // cURLPrefixArgs builds the beginning of a curl command for a given key
@@ -157,10 +156,6 @@ func cURLPrefixArgs(clus *etcdProcessCluster, method string, req cURLReq) []stri
 		cmdArgs = append(cmdArgs, "-m", fmt.Sprintf("%d", req.timeout))
 	}
 
-	if req.header != "" {
-		cmdArgs = append(cmdArgs, "-H", req.header)
-	}
-
 	switch method {
 	case "POST", "PUT":
 		dt := req.value

e2e/v3_curl_test.go

@@ -162,87 +162,3 @@ func TestV3CurlTxn(t *testing.T) {
 		t.Fatalf("failed put with curl (%v)", err)
 	}
 }
-
-func TestV3CurlAuth(t *testing.T) {
-	defer testutil.AfterTest(t)
-	epc, err := newEtcdProcessCluster(&configNoTLS)
-	if err != nil {
-		t.Fatalf("could not start etcd process cluster (%v)", err)
-	}
-	defer func() {
-		if cerr := epc.Close(); err != nil {
-			t.Fatalf("error closing etcd processes (%v)", cerr)
-		}
-	}()
-
-	// create root user
-	userreq, err := json.Marshal(&pb.AuthUserAddRequest{Name: string("root"), Password: string("toor")})
-	testutil.AssertNil(t, err)
-
-	if err = cURLPost(epc, cURLReq{endpoint: "/v3alpha/auth/user/add", value: string(userreq), expected: "revision"}); err != nil {
-		t.Fatalf("failed add user with curl (%v)", err)
-	}
-
-	// create root role
-	rolereq, err := json.Marshal(&pb.AuthRoleAddRequest{Name: string("root")})
-	testutil.AssertNil(t, err)
-
-	if err = cURLPost(epc, cURLReq{endpoint: "/v3alpha/auth/role/add", value: string(rolereq), expected: "revision"}); err != nil {
-		t.Fatalf("failed create role with curl (%v)", err)
-	}
-
-	// grant root role
-	grantrolereq, err := json.Marshal(&pb.AuthUserGrantRoleRequest{User: string("root"), Role: string("root")})
-	testutil.AssertNil(t, err)
-
-	if err = cURLPost(epc, cURLReq{endpoint: "/v3alpha/auth/user/grant", value: string(grantrolereq), expected: "revision"}); err != nil {
-		t.Fatalf("failed grant role with curl (%v)", err)
-	}
-
-	// enable auth
-	if err = cURLPost(epc, cURLReq{endpoint: "/v3alpha/auth/enable", value: string("{}"), expected: "revision"}); err != nil {
-		t.Fatalf("failed enable auth with curl (%v)", err)
-	}
-
-	// put "bar" into "foo"
-	putreq, err := json.Marshal(&pb.PutRequest{Key: []byte("foo"), Value: []byte("bar")})
-	testutil.AssertNil(t, err)
-
-	// fail put no auth
-	if err = cURLPost(epc, cURLReq{endpoint: "/v3alpha/kv/put", value: string(putreq), expected: "error"}); err != nil {
-		t.Fatalf("failed no auth put with curl (%v)", err)
-	}
-
-	// auth request
-	authreq, err := json.Marshal(&pb.AuthenticateRequest{Name: string("root"), Password: string("toor")})
-	testutil.AssertNil(t, err)
-
-	var (
-		authHeader string
-		cmdArgs    []string
-		lineFunc   = func(txt string) bool { return true }
-	)
-
-	cmdArgs = cURLPrefixArgs(epc, "POST", cURLReq{endpoint: "/v3alpha/auth/authenticate", value: string(authreq)})
-	proc, err := spawnCmd(cmdArgs)
-	testutil.AssertNil(t, err)
-
-	cURLRes, err := proc.ExpectFunc(lineFunc)
-	testutil.AssertNil(t, err)
-
-	authRes := make(map[string]interface{})
-	testutil.AssertNil(t, json.Unmarshal([]byte(cURLRes), &authRes))
-
-	token, ok := authRes["token"].(string)
-	if !ok {
-		t.Fatalf("failed invalid token in authenticate response with curl")
-	}
-
-	authHeader = "Authorization : " + token
-
-	// put with auth
-	if err = cURLPost(epc, cURLReq{endpoint: "/v3alpha/kv/put", value: string(putreq), header: authHeader, expected: "revision"}); err != nil {
-		t.Fatalf("failed auth put with curl (%v)", err)
-	}
-
-}

embed/config.go

@@ -40,8 +40,6 @@ const (
 	DefaultName         = "default"
 	DefaultMaxSnapshots = 5
 	DefaultMaxWALs      = 5
-	DefaultMaxTxnOps       = uint(128)
-	DefaultMaxRequestBytes = 1.5 * 1024 * 1024
 
 	DefaultListenPeerURLs   = "http://localhost:2380"
 	DefaultListenClientURLs = "http://localhost:2379"
@@ -87,8 +85,6 @@ type Config struct {
 	TickMs            uint  `json:"heartbeat-interval"`
 	ElectionMs        uint  `json:"election-timeout"`
 	QuotaBackendBytes int64 `json:"quota-backend-bytes"`
-	MaxTxnOps         uint  `json:"max-txn-ops"`
-	MaxRequestBytes   uint  `json:"max-request-bytes"`
 
 	// clustering
 
@@ -176,8 +172,6 @@ func NewConfig() *Config {
 		MaxWalFiles:         DefaultMaxWALs,
 		Name:                DefaultName,
 		SnapCount:           etcdserver.DefaultSnapCount,
-		MaxTxnOps:           DefaultMaxTxnOps,
-		MaxRequestBytes:     DefaultMaxRequestBytes,
 		TickMs:              100,
 		ElectionMs:          1000,
 		LPUrls:              []url.URL{*lpurl},

embed/etcd.go

@@ -119,7 +119,7 @@ func StartEtcd(inCfg *Config) (e *Etcd, err error) {
 		}
 	}
 
-	srvcfg := etcdserver.ServerConfig{
+	srvcfg := &etcdserver.ServerConfig{
 		Name:                    cfg.Name,
 		ClientURLs:              cfg.ACUrls,
 		PeerURLs:                cfg.APUrls,
@@ -139,8 +139,6 @@ func StartEtcd(inCfg *Config) (e *Etcd, err error) {
 		ElectionTicks:           cfg.ElectionTicks(),
 		AutoCompactionRetention: cfg.AutoCompactionRetention,
 		QuotaBackendBytes:       cfg.QuotaBackendBytes,
-		MaxTxnOps:               cfg.MaxTxnOps,
-		MaxRequestBytes:         cfg.MaxRequestBytes,
 		StrictReconfigCheck:     cfg.StrictReconfigCheck,
 		ClientCertAuthEnabled:   cfg.ClientTLSInfo.ClientCertAuth,
 		AuthToken:               cfg.AuthToken,

embed/serve.go

@@ -160,38 +160,28 @@ func grpcHandlerFunc(grpcServer *grpc.Server, otherHandler http.Handler) http.Ha
 	})
 }
 
-type registerHandlerFunc func(context.Context, *gw.ServeMux, *grpc.ClientConn) error
+type registerHandlerFunc func(context.Context, *gw.ServeMux, string, []grpc.DialOption) error
 
 func (sctx *serveCtx) registerGateway(opts []grpc.DialOption) (*gw.ServeMux, error) {
 	ctx := sctx.ctx
-	conn, err := grpc.DialContext(ctx, sctx.l.Addr().String(), opts...)
-	if err != nil {
-		return nil, err
-	}
+	addr := sctx.l.Addr().String()
 	gwmux := gw.NewServeMux()
 
 	handlers := []registerHandlerFunc{
-		etcdservergw.RegisterKVHandler,
-		etcdservergw.RegisterWatchHandler,
-		etcdservergw.RegisterLeaseHandler,
-		etcdservergw.RegisterClusterHandler,
-		etcdservergw.RegisterMaintenanceHandler,
-		etcdservergw.RegisterAuthHandler,
-		v3lockgw.RegisterLockHandler,
-		v3electiongw.RegisterElectionHandler,
+		etcdservergw.RegisterKVHandlerFromEndpoint,
+		etcdservergw.RegisterWatchHandlerFromEndpoint,
+		etcdservergw.RegisterLeaseHandlerFromEndpoint,
+		etcdservergw.RegisterClusterHandlerFromEndpoint,
+		etcdservergw.RegisterMaintenanceHandlerFromEndpoint,
+		etcdservergw.RegisterAuthHandlerFromEndpoint,
+		v3lockgw.RegisterLockHandlerFromEndpoint,
+		v3electiongw.RegisterElectionHandlerFromEndpoint,
 	}
 	for _, h := range handlers {
-		if err := h(ctx, gwmux, conn); err != nil {
+		if err := h(ctx, gwmux, addr, opts); err != nil {
 			return nil, err
 		}
 	}
-	go func() {
-		<-ctx.Done()
-		if cerr := conn.Close(); cerr != nil {
-			plog.Warningf("failed to close conn to %s: %v", sctx.l.Addr().String(), cerr)
-		}
-	}()
-
 	return gwmux, nil
 }
 

etcdctl/ctlv2/command/cluster_health.go

@@ -70,7 +70,7 @@ func handleClusterHealth(c *cli.Context) error {
 	}
 
 	for {
-		healthyMembers := 0
+		health := false
 		for _, m := range ms {
 			if len(m.ClientURLs) == 0 {
 				fmt.Printf("member %s is unreachable: no available published client urls\n", m.ID)
@@ -105,8 +105,8 @@ func handleClusterHealth(c *cli.Context) error {
 
 				checked = true
 				if result.Health == "true" || nresult.Health {
+					health = true
 					fmt.Printf("member %s is healthy: got healthy result from %s\n", m.ID, url)
-					healthyMembers++
 				} else {
 					fmt.Printf("member %s is unhealthy: got unhealthy result from %s\n", m.ID, url)
 				}
@@ -116,20 +116,19 @@ func handleClusterHealth(c *cli.Context) error {
 				fmt.Printf("member %s is unreachable: %v are all unreachable\n", m.ID, m.ClientURLs)
 			}
 		}
-		switch healthyMembers {
-		case len(ms):
+		if health {
 			fmt.Println("cluster is healthy")
-		case 0:
-			fmt.Println("cluster is unavailable")
-		default:
-			fmt.Println("cluster is degraded")
+		} else {
+			fmt.Println("cluster is unhealthy")
 		}
 
 		if !forever {
-			if healthyMembers == len(ms) {
+			if health {
 				os.Exit(ExitSuccess)
+				return nil
 			}
 			os.Exit(ExitClusterNotHealthy)
+			return nil
 		}
 
 		fmt.Printf("\nnext check after 10 second...\n\n")

etcdctl/ctlv2/ctl_cov.go

@@ -24,5 +24,5 @@ import (
 )
 
 func runCtlV2(app *cli.App) error {
-	return app.Run(strings.Split(os.Getenv("ETCDCTL_ARGS"), "\xe7\xcd"))
+	return app.Run(strings.Split(os.Getenv("ETCDCTL_ARGS"), "\xff"))
 }

etcdctl/ctlv3/ctl_cov.go

@@ -26,7 +26,7 @@ import (
 func Start() {
 	// ETCDCTL_ARGS=etcdctl_test arg1 arg2...
 	// SetArgs() takes arg1 arg2...
-	rootCmd.SetArgs(strings.Split(os.Getenv("ETCDCTL_ARGS"), "\xe7\xcd")[1:])
+	rootCmd.SetArgs(strings.Split(os.Getenv("ETCDCTL_ARGS"), "\xff")[1:])
 	if err := rootCmd.Execute(); err != nil {
 		command.ExitWithError(command.ExitError, err)
 	}

etcdmain/config.go

@@ -138,8 +138,6 @@ func newConfig() *config {
 	fs.UintVar(&cfg.TickMs, "heartbeat-interval", cfg.TickMs, "Time (in milliseconds) of a heartbeat interval.")
 	fs.UintVar(&cfg.ElectionMs, "election-timeout", cfg.ElectionMs, "Time (in milliseconds) for an election to timeout.")
 	fs.Int64Var(&cfg.QuotaBackendBytes, "quota-backend-bytes", cfg.QuotaBackendBytes, "Raise alarms when backend size exceeds the given quota. 0 means use the default quota.")
-	fs.UintVar(&cfg.MaxTxnOps, "max-txn-ops", cfg.MaxTxnOps, "Maximum number of operations permitted in a transaction.")
-	fs.UintVar(&cfg.MaxRequestBytes, "max-request-bytes", cfg.MaxRequestBytes, "Maximum client request size in bytes the server will accept.")
 
 	// clustering
 	fs.Var(flags.NewURLsValue(embed.DefaultInitialAdvertisePeerURLs), "initial-advertise-peer-urls", "List of this member's peer URLs to advertise to the rest of the cluster.")