gh-104372: Use non-Raw malloc for c_fds_to_keep in _posixsubprocess #104697
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As the code could ask for 0 length.
gpshead
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May 23, 2023
Backport of d1732fe to 3.11 from python#104697.
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… signal safety gh-104518 (#104785) Move all of the Python C API calls into the parent process up front instead of doing PyLong_AsLong and PyErr_Occurred and PyTuple_GET from the post-fork/vfork child process. Much of this was long overdue. We shouldn't have been using PyTuple and PyLong APIs within all of these low level functions anyways. This is a backport of c649df6 for #104518 and the tiny adjustment in d1732fe #104697. Backporting this allows backporting of the real bug fix that requires it. Co-authored-by: Gregory P. Smith [Google] <greg@krypto.org>
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PyMem_RawMalloc(0) is well defined: https://docs.python.org/dev/c-api/memory.html#c.PyMem_RawMalloc But I prefer to use PyMem_Malloc() when the GIL is held, it's usually faster ;-) |
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As the code could ask for 0 length.
This is a tiny fix to a theoretical issue with PR #104518.
vfork()until the child processexec()succeeds or fails. #104372