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Name	Size	Permission	Date
abstract.h	3.32 KB	-rw-r--r--	2026-02-03 21:23
bytearrayobject.h	1.14 KB	-rw-r--r--	2026-02-03 21:23
bytesobject.h	1.15 KB	-rw-r--r--	2026-02-03 21:23
cellobject.h	1.05 KB	-rw-r--r--	2026-02-03 21:23
ceval.h	1.09 KB	-rw-r--r--	2026-02-03 21:23
classobject.h	2.19 KB	-rw-r--r--	2026-02-03 21:23
code.h	14.85 KB	-rw-r--r--	2026-02-03 21:23
compile.h	2.07 KB	-rw-r--r--	2026-02-03 21:23
complexobject.h	909 B	-rw-r--r--	2026-02-03 21:23
context.h	1.79 KB	-rw-r--r--	2026-02-03 21:23
critical_section.h	5.46 KB	-rw-r--r--	2026-02-03 21:23
descrobject.h	1.56 KB	-rw-r--r--	2026-02-03 21:23
dictobject.h	3.78 KB	-rw-r--r--	2026-02-03 21:23
fileobject.h	652 B	-rw-r--r--	2026-02-03 21:23
fileutils.h	232 B	-rw-r--r--	2026-02-03 21:23
floatobject.h	900 B	-rw-r--r--	2026-02-03 21:23
frameobject.h	1.17 KB	-rw-r--r--	2026-02-03 21:23
funcobject.h	6.88 KB	-rw-r--r--	2026-02-03 21:23
genobject.h	2.93 KB	-rw-r--r--	2026-02-03 21:23
import.h	725 B	-rw-r--r--	2026-02-03 21:23
initconfig.h	8 KB	-rw-r--r--	2026-02-03 21:23
listobject.h	1.76 KB	-rw-r--r--	2026-02-03 21:23
lock.h	1.72 KB	-rw-r--r--	2026-02-03 21:23
longintrepr.h	5 KB	-rw-r--r--	2026-02-03 21:23
longobject.h	5.45 KB	-rw-r--r--	2026-02-03 21:23
memoryobject.h	2.17 KB	-rw-r--r--	2026-02-03 21:23
methodobject.h	2.22 KB	-rw-r--r--	2026-02-03 21:23
modsupport.h	1.02 KB	-rw-r--r--	2026-02-03 21:23
monitoring.h	7.52 KB	-rw-r--r--	2026-02-03 21:23
object.h	19 KB	-rw-r--r--	2026-02-03 21:23
objimpl.h	3.73 KB	-rw-r--r--	2026-02-03 21:23
odictobject.h	1.28 KB	-rw-r--r--	2026-02-03 21:23
picklebufobject.h	848 B	-rw-r--r--	2026-02-03 21:23
pthread_stubs.h	3.83 KB	-rw-r--r--	2026-02-03 21:23
pyatomic.h	16.12 KB	-rw-r--r--	2026-02-03 21:23
pyatomic_gcc.h	18.68 KB	-rw-r--r--	2026-02-03 21:23
pyatomic_msc.h	28.56 KB	-rw-r--r--	2026-02-03 21:23
pyatomic_std.h	23.77 KB	-rw-r--r--	2026-02-03 21:23
pyctype.h	1.35 KB	-rw-r--r--	2026-02-03 21:23
pydebug.h	1.38 KB	-rw-r--r--	2026-02-03 21:23
pyerrors.h	2.86 KB	-rw-r--r--	2026-02-03 21:23
pyfpe.h	444 B	-rw-r--r--	2026-02-03 21:23
pyframe.h	1.9 KB	-rw-r--r--	2026-02-03 21:23
pyhash.h	1.35 KB	-rw-r--r--	2026-02-03 21:23
pylifecycle.h	2.75 KB	-rw-r--r--	2026-02-03 21:23
pymem.h	2.78 KB	-rw-r--r--	2026-02-03 21:23
pystate.h	9.24 KB	-rw-r--r--	2026-02-03 21:23
pystats.h	5.31 KB	-rw-r--r--	2026-02-03 21:23
pythonrun.h	4.23 KB	-rw-r--r--	2026-02-03 21:23
pythread.h	1.47 KB	-rw-r--r--	2026-02-03 21:23
pytime.h	707 B	-rw-r--r--	2026-02-03 21:23
setobject.h	2 KB	-rw-r--r--	2026-02-03 21:23
sysmodule.h	775 B	-rw-r--r--	2026-02-03 21:23
traceback.h	282 B	-rw-r--r--	2026-02-03 21:23
tracemalloc.h	823 B	-rw-r--r--	2026-02-03 21:23
tupleobject.h	1.3 KB	-rw-r--r--	2026-02-03 21:23
unicodeobject.h	24.49 KB	-rw-r--r--	2026-02-03 21:23
warnings.h	564 B	-rw-r--r--	2026-02-03 21:23
weakrefobject.h	2.2 KB	-rw-r--r--	2026-02-03 21:23

Rename

#ifndef Py_CPYTHON_LOCK_H
#  error "this header file must not be included directly"
#endif

#define _Py_UNLOCKED    0
#define _Py_LOCKED      1

// A mutex that occupies one byte. The lock can be zero initialized to
// represent the unlocked state.
//
// Typical initialization:
//   PyMutex m = (PyMutex){0};
//
// Or initialize as global variables:
//   static PyMutex m;
//
// Typical usage:
//   PyMutex_Lock(&m);
//   ...
//   PyMutex_Unlock(&m);
//
// The contents of the PyMutex are not part of the public API, but are
// described to aid in understanding the implementation and debugging. Only
// the two least significant bits are used. The remaining bits are always zero:
// 0b00: unlocked
// 0b01: locked
// 0b10: unlocked and has parked threads
// 0b11: locked and has parked threads
typedef struct PyMutex {
    uint8_t _bits;  // (private)
} PyMutex;

// exported function for locking the mutex
PyAPI_FUNC(void) PyMutex_Lock(PyMutex *m);

// exported function for unlocking the mutex
PyAPI_FUNC(void) PyMutex_Unlock(PyMutex *m);

// Locks the mutex.
//
// If the mutex is currently locked, the calling thread will be parked until
// the mutex is unlocked. If the current thread holds the GIL, then the GIL
// will be released while the thread is parked.
static inline void
_PyMutex_Lock(PyMutex *m)
{
    uint8_t expected = _Py_UNLOCKED;
    if (!_Py_atomic_compare_exchange_uint8(&m->_bits, &expected, _Py_LOCKED)) {
        PyMutex_Lock(m);
    }
}
#define PyMutex_Lock _PyMutex_Lock

// Unlocks the mutex.
static inline void
_PyMutex_Unlock(PyMutex *m)
{
    uint8_t expected = _Py_LOCKED;
    if (!_Py_atomic_compare_exchange_uint8(&m->_bits, &expected, _Py_UNLOCKED)) {
        PyMutex_Unlock(m);
    }
}
#define PyMutex_Unlock _PyMutex_Unlock