tree 7d4ebec1fb206bf471bbdd3a9885f1ae4aa0d911
parent f6fc4efa6edf7285512797a5e68373994dd2df27
author Abseil Team <absl-team@google.com> 1693378624 -0700
committer Copybara-Service <copybara-worker@google.com> 1693378668 -0700

absl: fix a priority bug in CondVar wait morphing

Enqueue updates priority of the queued thread.
It was assumed that the queued thread is the current thread.
But it's not the case in CondVar wait morhping,
where we requeue an existing CondVar waiter on the Mutex.
As the result one thread can falsely get priority of another thread.

Fix this by not updating priority in this case.
And make the assumption explicit and checked.

PiperOrigin-RevId: 561249402
Change-Id: I9476c047757090b893a88a2839b795b85fe220ad