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bpo-37205: time.time() cannot fail with fatal error (GH-23314)

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time.time(), time.perf_counter() and time.monotonic() functions can
no longer fail with a Python fatal error, instead raise a regular
Python exception on failure.

Remove _PyTime_Init(): don't check system, monotonic and perf counter
clocks at startup anymore.

On error, _PyTime_GetSystemClock(), _PyTime_GetMonotonicClock() and
_PyTime_GetPerfCounter() now silently ignore the error and return 0.
They cannot fail with a Python fatal error anymore.

Add py_mach_timebase_info() and win_perf_counter_frequency()
sub-functions.
This commit is contained in:
Victor Stinner 2020-11-16 16:08:05 +01:00 • committed by GitHub
parent 5909a494cd
commit ae6cd7cfda
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5 changed files with 228 additions and 158 deletions
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6
Python/pylifecycle.c
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@ -763,12 +763,6 @@ pycore_interp_init(PyThreadState *tstate)
goto done;
}
if (_Py_IsMainInterpreter(tstate)) {
if (_PyTime_Init() < 0) {
return _PyStatus_ERR("can't initialize time");
}
}
status = _PySys_Create(tstate, &sysmod);
if (_PyStatus_EXCEPTION(status)) {
goto done;