3b2e846e11
The timer code is careful to ensure that if stop/reset is called
while a timer is being run, we cancel the run. However, the code
failed to ensure that in that case stop/reset returned true,
meaning that the timer had been stopped. In the racing case
stop/reset could see that t.when had been set to zero,
and return false, even though the timer had not and never would fire.
Fix this by tracking whether a timer run is in progress,
and using that to reliably detect that the run was cancelled,
meaning that stop/reset should return true.
For #69312
Fixes #69333
Change-Id: I78e870063eb96650638f12c056e32c931417c84a
Reviewed-on: https://go-review.googlesource.com/c/go/+/611496
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit
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