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| author | Victor Stinner <vstinner@python.org> | 2021-10-01 07:55:28 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-10-01 07:55:28 (GMT) |
| commit | 1ee0f94d16f150356a4b9b0a39d44ba1d2d5b9fc (patch) | |
| tree | e94381603c5b5f84731ace512dbc7fbf6bc01fc7 /Misc/NEWS.d/next | |
| parent | 3e1c5d989a884cfbeb427b6fc86012b03cb95f62 (diff) | |
| download | cpython-1ee0f94d16f150356a4b9b0a39d44ba1d2d5b9fc.zip cpython-1ee0f94d16f150356a4b9b0a39d44ba1d2d5b9fc.tar.gz cpython-1ee0f94d16f150356a4b9b0a39d44ba1d2d5b9fc.tar.bz2 | |
bpo-41710: PyThread_acquire_lock_timed() uses sem_clockwait() (GH-28662)
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.
Diffstat (limited to 'Misc/NEWS.d/next')
| -rw-r--r-- | Misc/NEWS.d/next/Library/2021-09-30-23-00-18.bpo-41710.svuloZ.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Library/2021-09-30-23-00-18.bpo-41710.svuloZ.rst b/Misc/NEWS.d/next/Library/2021-09-30-23-00-18.bpo-41710.svuloZ.rst new file mode 100644 index 0000000..d8a4f95 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2021-09-30-23-00-18.bpo-41710.svuloZ.rst @@ -0,0 +1,5 @@ +On Unix, if the ``sem_clockwait()`` function is available in the C library +(glibc 2.30 and newer), the :meth:`threading.Lock.acquire` method now uses the +monotonic clock (:data:`time.CLOCK_MONOTONIC`) for the timeout, rather than +using the system clock (:data:`time.CLOCK_REALTIME`), to not be affected by +system clock changes. Patch by Victor Stinner. |