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sync: fix goroutine leak for when TestMutexFairness times out

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If the timeout triggers before writing to the done channel, the
goroutine will be blocked waiting for a corresponding read that’s
no longer existent, thus a goroutine leak. This change fixes that by
using a buffered channel instead.

Change-Id: I9cf4067a58bc5a729ab31e4426edd78bd359e8e0
GitHub-Last-Rev: a7d811a7be
GitHub-Pull-Request: golang/go#40236
Reviewed-on: https://go-review.googlesource.com/c/go/+/242902
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Gaurav Singh 2020-07-23 23:27:05 +00:00 committed by Emmanuel Odeke
parent 24ff2af65e
commit 5a18e0b58c
1 changed files with 1 additions and 1 deletions
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2
src/sync/mutex_test.go
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@ -194,7 +194,7 @@ func TestMutexFairness(t *testing.T) {
}
}
}()
done := make(chan bool)
done := make(chan bool, 1)
go func() {
for i := 0; i < 10; i++ {
time.Sleep(100 * time.Microsecond)