STINNER Victor added the comment: > Python/condvar.h and Python/thread_pthread.h should use the monotonic clock > CLOCK_MONOTONIC
Oh, I forgot that Python/thread_pthread.h only uses pthread_cond_timedwait() if semaphores are emulated with mutexes+conditional variables. On most platforms, PyThread_acquire_lock_timed() is implemented with sem_timedwait(). Problem: sem_timedwait() requires an absolute time using the CLOCK_REALTIME clock and the clock is not yet configurable on Linux :-( See the feature request in the glibc: "Bug 14717 - Allow choice of clock source for calls to sem_timedwait() and pthread_mutex_timedwait()" opened in 2012: https://sourceware.org/bugzilla/show_bug.cgi?id=14717 Note: QNX provides sem_timedwait_monotonic(). ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue23428> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
