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gh-112062: Make _struct module thread-safe in --disable-gil builds #112094

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merged 2 commits into from
Nov 15, 2023

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chgnrdv
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@chgnrdv chgnrdv commented Nov 14, 2023

Fixes #112062

  • clear cache dict but preserve the reference in _clearcache_impl
  • create cache dict in _structmodule_exec

* use `PyDict_GetItemRef` instead of `PyDict_GetItemWithError` in `cache_struct_converter` to avoid usage of borrowed ref with explicit incref
* clear cache dict but preserve the reference in `_clearcache_impl`
* create cache dict in `_structmodule_exec`
@colesbury
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Thanks @chgnrdv. This is going to conflict with @serhiy-storchaka's #112076, which also makes _struct.c use PyDict_GetItemRef.

Maybe remove that part and just keep the changes to _clearcache_impl and _structmodule_exec?

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Thanks, this lgtm. @kumaraditya303, would you please review this change?

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LGTM

@kumaraditya303 kumaraditya303 merged commit 4744f59 into python:main Nov 15, 2023
aisk pushed a commit to aisk/cpython that referenced this pull request Feb 11, 2024
… builds (python#112094)

* pythongh-112062: Make `_struct` module thread-safe in --disable-gil builds
Glyphack pushed a commit to Glyphack/cpython that referenced this pull request Sep 2, 2024
… builds (python#112094)

* pythongh-112062: Make `_struct` module thread-safe in --disable-gil builds
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Make _struct module thread-safe in --disable-gil builds
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