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gh-112538: Add internal-only _PyThreadStateImpl "wrapper" for PyThreadState (gh-112560)

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Every PyThreadState instance is now actually a _PyThreadStateImpl.
It is safe to cast from `PyThreadState*` to `_PyThreadStateImpl*` and back.
The _PyThreadStateImpl will contain fields that we do not want to expose
in the public C API.
This commit is contained in:
Sam Gross 2023-12-07 14:11:45 -05:00 • committed by GitHub
parent bf0beae6a0
commit db460735af
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7 changed files with 54 additions and 17 deletions
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26
Include/internal/pycore_tstate.h Normal file
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#ifndef Py_INTERNAL_TSTATE_H
#define Py_INTERNAL_TSTATE_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_BUILD_CORE
# error "this header requires Py_BUILD_CORE define"
#endif
// Every PyThreadState is actually allocated as a _PyThreadStateImpl. The
// PyThreadState fields are exposed as part of the C API, although most fields
// are intended to be private. The _PyThreadStateImpl fields not exposed.
typedef struct _PyThreadStateImpl {
// semi-public fields are in PyThreadState.
PyThreadState base;
// TODO: add private fields here
} _PyThreadStateImpl;
#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_TSTATE_H */