v2.0.x: Fix MT wait-sync. #2105
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Prevent a race condition between a thread checking count and then going in cond_wait, and another thread setting the count to 0 and signaling the condition. Thanks to Pascal Deveze for catching up the bug and for the initial patch. (cherry picked from commit 131fe42)
hjelmn
approved these changes
Sep 26, 2016
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Prevent a race condition between a thread checking count and then going in cond_wait, and another thread setting the count to 0 and signaling the condition.
Thanks to Pascal Deveze for catching up the bug and for the initial patch.
Fixes #2100
Submitted by @bosilca
@hjelmn Please review
(cherry picked from commit 131fe42)