bump(code.google.com/p/go.net): ca4c826193c2

third_party/code.google.com/p/go.net/ipv6/control_test.go

@@ -0,0 +1,42 @@
+// Copyright 2013 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package ipv6
+
+import (
+	"sync"
+	"testing"
+)
+
+func TestControlFlags(t *testing.T) {
+	tf := FlagInterface | FlagPathMTU
+	opt := rawOpt{cflags: tf | FlagHopLimit}
+
+	// This loop runs methods of raw.Opt concurrently for testing
+	// concurrent access to the rawOpt. The first entry shold be
+	// opt.set and the last entry should be opt.clear.
+	tfns := []func(ControlFlags){opt.set, opt.clear, opt.clear}
+	ch := make(chan bool)
+	var wg sync.WaitGroup
+	for i, fn := range tfns {
+		wg.Add(1)
+		go func(i int, fn func(ControlFlags)) {
+			defer wg.Done()
+			switch i {
+			case 0:
+				close(ch)
+			case len(tfns) - 1:
+				<-ch
+			}
+			opt.Lock()
+			defer opt.Unlock()
+			fn(tf)
+		}(i, fn)
+	}
+	wg.Wait()
+
+	if opt.isset(tf) {
+		t.Fatalf("got %#x; expected %#x", opt.cflags, FlagHopLimit)
+	}
+}