bpo-35081: Add _PyThreadState_GET() internal macro #10266
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If Py_BUILD_CORE is defined, the PyThreadState_GET() macro access _PyRuntime which comes from the internal pycore_state.h header. Public headers must not require internal headers. Move PyThreadState_GET() and _PyInterpreterState_GET_UNSAFE() from Include/pystate.h to Include/internal/pycore_state.h, and rename PyThreadState_GET() to _PyThreadState_GET() there. The PyThreadState_GET() macro of pystate.h is now redefined when pycore_state.h is included, to use the fast _PyThreadState_GET(). Changes: * Add _PyThreadState_GET() macro * Replace "PyThreadState_GET()->interp" with _PyInterpreterState_GET_UNSAFE() * Replace PyThreadState_GET() with _PyThreadState_GET() in internal C files (compiled with Py_BUILD_CORE defined), but keep PyThreadState_GET() in the public header files. * _testcapimodule.c: replace PyThreadState_GET() with PyThreadState_Get(); the module is not compiled with Py_BUILD_CORE defined. * pycore_state.h now requires Py_BUILD_CORE to be defined.
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PyThreadState_GET() is a macro accessing
_PyRuntime.gilstate.tstate_current variable or calling
PyThreadState_Get() depending on Py_BUILD_CORE.
Add a new _PyThreadState_GET() internal macro which is always
the efficient macro accessing directly the variable. _PyThreadState_GET()
is not available if Py_BUILD_CORE is not defined.
Changes:
_PyInterpreterState_GET_UNSAFE()
files, but keep PyThreadState_GET() in the public API.
PyThreadState_Get(), the module is not compiled with Py_BUILD_CORE
defined.
https://bugs.python.org/issue35081