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Commitdfe07f9

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feat: add WaitUntilEmpty to LogSender
1 parent081e37d commitdfe07f9

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2 files changed

+77
-1
lines changed

2 files changed

+77
-1
lines changed

‎codersdk/agentsdk/logs.go

Lines changed: 30 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -437,6 +437,7 @@ func (l *LogSender) SendLoop(ctx context.Context, dest logDest) error {
437437
l.exceededLogLimit=true
438438
// no point in keeping anything we have queued around, server will not accept them
439439
l.queues=make(map[uuid.UUID]*logQueue)
440+
l.Broadcast()// might unblock WaitUntilEmpty
440441
returnLogLimitExceededError
441442
}
442443

@@ -451,6 +452,7 @@ func (l *LogSender) SendLoop(ctx context.Context, dest logDest) error {
451452
iflen(q.logs)==0 {
452453
// no empty queues
453454
delete(l.queues,src)
455+
l.Broadcast()// might unblock WaitUntilEmpty
454456
continue
455457
}
456458
q.lastFlush=time.Now()
@@ -487,6 +489,34 @@ func (l *LogSender) GetScriptLogger(logSourceID uuid.UUID) ScriptLogger {
487489
returnScriptLogger{srcID:logSourceID,sender:l}
488490
}
489491

492+
// WaitUntilEmpty waits until the LogSender's queues are empty or the given context expires.
493+
func (l*LogSender)WaitUntilEmpty(ctx context.Context)error {
494+
ctxDone:=false
495+
nevermind:=make(chanstruct{})
496+
deferclose(nevermind)
497+
gofunc() {
498+
select {
499+
case<-ctx.Done():
500+
l.L.Lock()
501+
deferl.L.Unlock()
502+
ctxDone=true
503+
l.Broadcast()
504+
return
505+
case<-nevermind:
506+
return
507+
}
508+
}()
509+
l.L.Lock()
510+
deferl.L.Unlock()
511+
forlen(l.queues)!=0&&!ctxDone {
512+
l.Wait()
513+
}
514+
iflen(l.queues)==0 {
515+
returnnil
516+
}
517+
returnctx.Err()
518+
}
519+
490520
typeScriptLoggerstruct {
491521
sender*LogSender
492522
srcID uuid.UUID

‎codersdk/agentsdk/logs_internal_test.go

Lines changed: 47 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -56,6 +56,12 @@ func TestLogSender_Mainline(t *testing.T) {
5656
loopErr<-err
5757
}()
5858

59+
empty:=make(chanerror,1)
60+
gofunc() {
61+
err:=uut.WaitUntilEmpty(ctx)
62+
empty<-err
63+
}()
64+
5965
// since neither source has even been flushed, it should immediately Flush
6066
// both, although the order is not controlled
6167
varlogReqs []*proto.BatchCreateLogsRequest
@@ -104,8 +110,11 @@ func TestLogSender_Mainline(t *testing.T) {
104110
require.Equal(t,proto.Log_DEBUG,req.Logs[0].GetLevel())
105111
require.Equal(t,t1,req.Logs[0].GetCreatedAt().AsTime())
106112

113+
err:=testutil.RequireRecvCtx(ctx,t,empty)
114+
require.NoError(t,err)
115+
107116
cancel()
108-
err:=testutil.RequireRecvCtx(testCtx,t,loopErr)
117+
err=testutil.RequireRecvCtx(testCtx,t,loopErr)
109118
require.ErrorIs(t,err,context.Canceled)
110119

111120
// we can still enqueue more logs after SendLoop returns
@@ -132,6 +141,12 @@ func TestLogSender_LogLimitExceeded(t *testing.T) {
132141
Level:codersdk.LogLevelInfo,
133142
})
134143

144+
empty:=make(chanerror,1)
145+
gofunc() {
146+
err:=uut.WaitUntilEmpty(ctx)
147+
empty<-err
148+
}()
149+
135150
loopErr:=make(chanerror,1)
136151
gofunc() {
137152
err:=uut.SendLoop(ctx,fDest)
@@ -146,6 +161,10 @@ func TestLogSender_LogLimitExceeded(t *testing.T) {
146161
err:=testutil.RequireRecvCtx(ctx,t,loopErr)
147162
require.ErrorIs(t,err,LogLimitExceededError)
148163

164+
// Should also unblock WaitUntilEmpty
165+
err=testutil.RequireRecvCtx(ctx,t,empty)
166+
require.NoError(t,err)
167+
149168
// we can still enqueue more logs after SendLoop returns, but they don't
150169
// actually get enqueued
151170
uut.Enqueue(ls1,Log{
@@ -363,6 +382,33 @@ func TestLogSender_SendError(t *testing.T) {
363382
uut.L.Unlock()
364383
}
365384

385+
funcTestLogSender_WaitUntilEmpty_ContextExpired(t*testing.T) {
386+
t.Parallel()
387+
testCtx:=testutil.Context(t,testutil.WaitShort)
388+
ctx,cancel:=context.WithCancel(testCtx)
389+
logger:=slogtest.Make(t,nil).Leveled(slog.LevelDebug)
390+
uut:=NewLogSender(logger)
391+
392+
t0:=dbtime.Now()
393+
394+
ls1:= uuid.UUID{0x11}
395+
uut.Enqueue(ls1,Log{
396+
CreatedAt:t0,
397+
Output:"test log 0, src 1",
398+
Level:codersdk.LogLevelInfo,
399+
})
400+
401+
empty:=make(chanerror,1)
402+
gofunc() {
403+
err:=uut.WaitUntilEmpty(ctx)
404+
empty<-err
405+
}()
406+
407+
cancel()
408+
err:=testutil.RequireRecvCtx(testCtx,t,empty)
409+
require.ErrorIs(t,err,context.Canceled)
410+
}
411+
366412
typefakeLogDeststruct {
367413
reqschan*proto.BatchCreateLogsRequest
368414
respschan*proto.BatchCreateLogsResponse

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