STINNER Victor added the comment: test.test_threading.ConditionTests.test_notify() tests the threading._Condition.
threading._Condition uses internally a threading._RLock. threading._RLock uses an internal lock created with thread.allocate_lock(). thread.allocate_lock() calls internally PyThread_allocate_lock(). On my Linux (Fedora 25) and FreeBSD (FreeBSD 11 VM) machines, PyThread_allocate_lock() calls sem_init(): POSIX pthread semaphores. In Python 3, RLock was implemented in C for speed (the new Python 3.0 io module was slow because of RLock performance): see bpo-3001. I know at least one race condition in Python 2.7 RLock: bpo-13697, RLock bug with signals. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue30727> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
