mirrors/tailscale
1
0
Fork 0
Code Issues Pull Requests Projects Wiki Activity

ipn: add a WatchIPNBus option bit to subscribe to EngineStatus changes

Browse Source 
So GUI clients don't need to poll for it.

We still poll internally (for now!) but that's still cheaper. And will
get much cheaper later, without having to modify clients once they
start sending this bit.

Change-Id: I36647b701c8d1fe197677e5eb76f6894e8ff79f7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2022-11-26 12:19:16 -08:00
committed by Brad Fitzpatrick
parent f45106d47c
commit 5676d201d6
4 changed files with 55 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
ipn/localapi/localapi.go
View File

@ -602,8 +602,17 @@ func (h *Handler) serveWatchIPNBus(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
f.Flush()
var mask ipn.NotifyWatchOpt
if s := r.FormValue("mask"); s != "" {
v, err := strconv.ParseUint(s, 10, 64)
if err != nil {
http.Error(w, "bad mask", http.StatusBadRequest)
return
}
mask = ipn.NotifyWatchOpt(v)
}
ctx := r.Context()
h.b.WatchNotifications(ctx, func(roNotify *ipn.Notify) (keepGoing bool) {
h.b.WatchNotifications(ctx, mask, func(roNotify *ipn.Notify) (keepGoing bool) {
js, err := json.Marshal(roNotify)
if err != nil {
h.logf("json.Marshal: %v", err)