[3.9] bpo-41710: PyThread_acquire_lock_timed() uses sem_clockwait() (GH-28671) #28683
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…GH-28671) On Unix, if the sem_clockwait() function is available in the C library (glibc 2.30 and newer), the threading.Lock.acquire() method now uses the monotonic clock (time.CLOCK_MONOTONIC) for the timeout, rather than using the system clock (time.CLOCK_REALTIME), to not be affected by system clock changes. configure now checks if the sem_clockwait() function is available. (cherry picked from commit 6df8c32) Co-authored-by: Victor Stinner <vstinner@python.org>
| @vstinner: Status check is done, and it's a success ✅ . |
| @vstinner: Status check is done, and it's a success ✅ . |
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On Unix, if the sem_clockwait() function is available in the C
library (glibc 2.30 and newer), the threading.Lock.acquire() method
now uses the monotonic clock (time.CLOCK_MONOTONIC) for the timeout,
rather than using the system clock (time.CLOCK_REALTIME), to not be
affected by system clock changes.
configure now checks if the sem_clockwait() function is available.
(cherry picked from commit 6df8c32)
Co-authored-by: Victor Stinner vstinner@python.org
https://bugs.python.org/issue41710