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gh-59956: Clarify GILState-related Code (gh-101161)

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The objective of this change is to help make the GILState-related code easier to understand.  This mostly involves moving code around and some semantically equivalent refactors.  However, there are a also a small number of slight changes in structure and behavior:

* tstate_current is moved out of _PyRuntimeState.gilstate
* autoTSSkey is moved out of _PyRuntimeState.gilstate
* autoTSSkey is initialized earlier
* autoTSSkey is re-initialized (after fork) earlier

https://github.com/python/cpython/issues/59956
This commit is contained in:
Eric Snow
2023-01-19 16:04:14 -07:00
committed by GitHub
parent 8a2d4f4e8e
commit 6036c3e856
10 changed files with 373 additions and 250 deletions
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Include/internal/pycore_pylifecycle.h
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@@ -69,7 +69,7 @@ extern void _PyThread_FiniType(PyInterpreterState *interp);
extern void _Py_Deepfreeze_Fini(void);
extern void _PyArg_Fini(void);
extern PyStatus _PyGILState_Init(_PyRuntimeState *runtime);
extern PyStatus _PyGILState_Init(PyInterpreterState *interp);
extern PyStatus _PyGILState_SetTstate(PyThreadState *tstate);
extern void _PyGILState_Fini(PyInterpreterState *interp);