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gh-117657: Acquire a critical section around SemLock.__{enter,exit}__ #118812

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merged 1 commit into from
May 9, 2024
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gh-117657: Acquire a critical section around SemLock.__{enter,exit}__ #118812

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12 changes: 10 additions & 2 deletions Modules/_multiprocessing/clinic/semaphore.c.h
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6 changes: 4 additions & 2 deletions Modules/_multiprocessing/semaphore.c
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Original file line number Diff line number Diff line change
Expand Up @@ -682,19 +682,21 @@ _multiprocessing_SemLock__after_fork_impl(SemLockObject *self)
}

/*[clinic input]
@critical_section
_multiprocessing.SemLock.__enter__

Enter the semaphore/lock.
[clinic start generated code]*/

static PyObject *
_multiprocessing_SemLock___enter___impl(SemLockObject *self)
/*[clinic end generated code: output=beeb2f07c858511f input=c5e27d594284690b]*/
/*[clinic end generated code: output=beeb2f07c858511f input=d35c9860992ee790]*/
{
return _multiprocessing_SemLock_acquire_impl(self, 1, Py_None);
}

/*[clinic input]
@critical_section
_multiprocessing.SemLock.__exit__

exc_type: object = None
Expand All @@ -709,7 +711,7 @@ static PyObject *
_multiprocessing_SemLock___exit___impl(SemLockObject *self,
PyObject *exc_type,
PyObject *exc_value, PyObject *exc_tb)
/*[clinic end generated code: output=3b37c1a9f8b91a03 input=7d644b64a89903f8]*/
/*[clinic end generated code: output=3b37c1a9f8b91a03 input=1610c8cc3e0e337e]*/
{
return _multiprocessing_SemLock_release_impl(self);
}
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