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gh-89240: Enable multiprocessing on Windows to use large process pools (GH-107873)

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We add _winapi.BatchedWaitForMultipleObjects to wait for larger numbers of handles.
This is an internal module, hence undocumented, and should be used with caution.
Check the docstring for info before using BatchedWaitForMultipleObjects.
This commit is contained in:
Steve Dower 2024-02-13 00:28:35 +00:00 • committed by GitHub
parent 2f0778675a
commit ea25f32d5f
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12 changed files with 1195 additions and 6 deletions
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7
Objects/exceptions.c
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@ -3539,7 +3539,6 @@ SimpleExtendsException(PyExc_Warning, ResourceWarning,
#undef EOPNOTSUPP
#undef EPROTONOSUPPORT
#undef EPROTOTYPE
#undef ETIMEDOUT
#undef EWOULDBLOCK
#if defined(WSAEALREADY) && !defined(EALREADY)
@ -3560,9 +3559,6 @@ SimpleExtendsException(PyExc_Warning, ResourceWarning,
#if defined(WSAESHUTDOWN) && !defined(ESHUTDOWN)
#define ESHUTDOWN WSAESHUTDOWN
#endif
#if defined(WSAETIMEDOUT) && !defined(ETIMEDOUT)
#define ETIMEDOUT WSAETIMEDOUT
#endif
#if defined(WSAEWOULDBLOCK) && !defined(EWOULDBLOCK)
#define EWOULDBLOCK WSAEWOULDBLOCK
#endif
@ -3747,6 +3743,9 @@ _PyExc_InitState(PyInterpreterState *interp)
#endif
ADD_ERRNO(ProcessLookupError, ESRCH);
ADD_ERRNO(TimeoutError, ETIMEDOUT);
#ifdef WSAETIMEDOUT
ADD_ERRNO(TimeoutError, WSAETIMEDOUT);
#endif
return _PyStatus_OK();