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| author | Victor Stinner <vstinner@python.org> | 2021-09-25 12:36:26 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-09-25 12:36:26 (GMT) |
| commit | 7834ff26cbcd4d8394d64d80d9f51a364d38b1c6 (patch) | |
| tree | e7c785c78db85d08be01a0f081589ea6d1a48614 /Doc | |
| parent | 71f8ff45c62bd6b792919ac7c3804a8628ae12cb (diff) | |
| download | cpython-7834ff26cbcd4d8394d64d80d9f51a364d38b1c6.zip cpython-7834ff26cbcd4d8394d64d80d9f51a364d38b1c6.tar.gz cpython-7834ff26cbcd4d8394d64d80d9f51a364d38b1c6.tar.bz2 | |
bpo-21302: Add nanosleep() implementation for time.sleep() in Unix (GH-28545)
Co-authored-by: Livius <egyszeregy@freemail.hu>
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/time.rst | 16 | ||||
| -rw-r--r-- | Doc/whatsnew/3.11.rst | 7 |
2 files changed, 13 insertions, 10 deletions
diff --git a/Doc/library/time.rst b/Doc/library/time.rst index d91862c..69e5274 100644 --- a/Doc/library/time.rst +++ b/Doc/library/time.rst @@ -364,16 +364,18 @@ Functions threads ready to run, the function returns immediately, and the thread continues execution. - Implementation: + Unix implementation: - * On Unix, ``clock_nanosleep()`` is used if available (resolution: 1 ns), - or ``select()`` is used otherwise (resolution: 1 us). - * On Windows, a waitable timer is used (resolution: 100 ns). If *secs* is - zero, ``Sleep(0)`` is used. + * Use ``clock_nanosleep()`` if available (resolution: 1 ns); + * Or use ``nanosleep()`` if available (resolution: 1 ns); + * Or use ``select()`` (resolution: 1 us). + + On Windows, a waitable timer is used (resolution: 100 ns). If *secs* is + zero, ``Sleep(0)`` is used. .. versionchanged:: 3.11 - On Unix, the ``clock_nanosleep()`` function is now used if available. - On Windows, a waitable timer is now used. + On Unix, the ``clock_nanosleep()`` and ``nanosleep()`` functions are now + used if available. On Windows, a waitable timer is now used. .. versionchanged:: 3.5 The function now sleeps at least *secs* even if the sleep is interrupted diff --git a/Doc/whatsnew/3.11.rst b/Doc/whatsnew/3.11.rst index 0e56b46..818208e 100644 --- a/Doc/whatsnew/3.11.rst +++ b/Doc/whatsnew/3.11.rst @@ -242,9 +242,10 @@ sqlite3 time ---- -* On Unix, :func:`time.sleep` now uses the ``clock_nanosleep()`` function, if - available, which has a resolution of 1 ns (10^-6 sec), rather than using - ``select()`` which has a resolution of 1 us (10^-9 sec). +* On Unix, :func:`time.sleep` now uses the ``clock_nanosleep()`` or + ``nanosleep()`` function, if available, which has a resolution of 1 ns (10^-6 + sec), rather than using ``select()`` which has a resolution of 1 us (10^-9 + sec). (Contributed by Livius and Victor Stinner in :issue:`21302`.) * On Windows, :func:`time.sleep` now uses a waitable timer which has a |