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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2019-05-29 11:24:32 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-05-29 11:24:32 -0700 |
| commit | 4e1e887203ef069bf293ecabd945f7567d6a4879 (patch) | |
| tree | 7acff70cd5c44c988f5fd6dbea9cfd3f3c08515b /Doc | |
| parent | cee95fe1825dfeb52d7074c8209b5884a079f06c (diff) | |
| download | cpython-git-4e1e887203ef069bf293ecabd945f7567d6a4879.tar.gz | |
bpo-36794: Document that Lock.acquire is fair. (GH-13082)
https://bugs.python.org/issue36794
(cherry picked from commit 34f4f5efea730504216ee19f237734e0bb0104ee)
Co-authored-by: Hrvoje Nikšić <hniksic@gmail.com>
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/asyncio-sync.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Doc/library/asyncio-sync.rst b/Doc/library/asyncio-sync.rst index 291310d714..993bd13fb0 100644 --- a/Doc/library/asyncio-sync.rst +++ b/Doc/library/asyncio-sync.rst @@ -66,6 +66,13 @@ Lock This method waits until the lock is *unlocked*, sets it to *locked* and returns ``True``. + When more than one coroutine is blocked in :meth:`acquire` + waiting for the lock to be unlocked, only one coroutine + eventually proceeds. + + Acquiring a lock is *fair*: the coroutine that proceeds will be + the first coroutine that started waiting on the lock. + .. method:: release() Release the lock. |