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Title: [3.11] gh-104372: Cleanup _posixsubprocess make_inheritable for async signal safety gh-104518 by gpshead · Pull Request #104785 · python/cpython · GitHub

Open Graph Title: [3.11] gh-104372: Cleanup _posixsubprocess make_inheritable for async signal safety gh-104518 by gpshead · Pull Request #104785 · python/cpython

X Title: [3.11] gh-104372: Cleanup _posixsubprocess make_inheritable for async signal safety gh-104518 by gpshead · Pull Request #104785 · python/cpython

Description: 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 o...

Open Graph Description: 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 o...

X Description: 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 o...

Opengraph URL: https://github.com/python/cpython/pull/104785

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subprocess can block all Python threads when using vfork() until the child process exec() succeeds or fails. #104372https://github.com/python/cpython/issues/104372
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subprocess can block all Python threads when using vfork() until the child process exec() succeeds or fails. #104372 https://github.com/python/cpython/issues/104372
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May 22, 2023 19:08https://github.com/python/cpython/pull/104785#commits-pushed-c684290
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Don't use Raw malloc & free.https://github.com/python/cpython/pull/104785/commits/c6842903927385dc317544d0521b89d81724279b
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Fix the backport for pre-argument-clinic life.https://github.com/python/cpython/pull/104785/commits/0ecbcba92a0e4efa7b075bf01b0bf898fc42aee0
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cleanup to keep the backport more diff concise.https://github.com/python/cpython/pull/104785/commits/c058694ed9ca17201f52c682cbc88b08bf6fe36f
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