cpython/Include/internal/pycore_tstate.h

#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

#include "pycore_brc.h"             // struct _brc_thread_state
#include "pycore_freelist_state.h"  // struct _Py_freelists
#include "pycore_mimalloc.h"        // struct _mimalloc_thread_state
#include "pycore_qsbr.h"            // struct qsbr


// 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.
_PyThreadStateImpl;

#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_TSTATE_H */