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gh-104530: Enable native Win32 condition variables by default (GH-104531)

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Andrew Rogers 2024-02-02 13:50:51 +00:00 • committed by GitHub
parent d29f57f603
commit b3f0b698da
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6 changed files with 41 additions and 35 deletions
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23
Python/condvar.h
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@ -260,13 +260,13 @@ PyMUTEX_UNLOCK(PyMUTEX_T *cs)
return 0;
}
Py_LOCAL_INLINE(int)
PyCOND_INIT(PyCOND_T *cv)
{
InitializeConditionVariable(cv);
return 0;
}
Py_LOCAL_INLINE(int)
PyCOND_FINI(PyCOND_T *cv)
{
@ -279,27 +279,32 @@ PyCOND_WAIT(PyCOND_T *cv, PyMUTEX_T *cs)
return SleepConditionVariableSRW(cv, cs, INFINITE, 0) ? 0 : -1;
}
/* This implementation makes no distinction about timeouts. Signal
* 2 to indicate that we don't know.
*/
/* return 0 for success, 1 on timeout, -1 on error */
Py_LOCAL_INLINE(int)
PyCOND_TIMEDWAIT(PyCOND_T *cv, PyMUTEX_T *cs, long long us)
{
return SleepConditionVariableSRW(cv, cs, (DWORD)(us/1000), 0) ? 2 : -1;
BOOL success = SleepConditionVariableSRW(cv, cs, (DWORD)(us/1000), 0);
if (!success) {
if (GetLastError() == ERROR_TIMEOUT) {
return 1;
}
return -1;
}
return 0;
}
Py_LOCAL_INLINE(int)
PyCOND_SIGNAL(PyCOND_T *cv)
{
WakeConditionVariable(cv);
return 0;
WakeConditionVariable(cv);
return 0;
}
Py_LOCAL_INLINE(int)
PyCOND_BROADCAST(PyCOND_T *cv)
{
WakeAllConditionVariable(cv);
return 0;
WakeAllConditionVariable(cv);
return 0;
}