FM / internal

/usr/include/python3.10/internal

Name	Size	Mode	Actions
pycore_abstract.h	479	0644	edit dl rm
pycore_accu.h	1126	0644	edit dl rm
pycore_asdl.h	2971	0644	edit dl rm
pycore_ast.h	28828	0644	edit dl rm
pycore_ast_state.h	6457	0644	edit dl rm
pycore_atomic.h	16979	0644	edit dl rm
pycore_atomic_funcs.h	2438	0644	edit dl rm
pycore_bitutils.h	5271	0644	edit dl rm
pycore_blocks_output_buffer.h	8688	0644	edit dl rm
pycore_bytes_methods.h	3384	0644	edit dl rm
pycore_call.h	870	0644	edit dl rm
pycore_ceval.h	3484	0644	edit dl rm
pycore_code.h	696	0644	edit dl rm
pycore_compile.h	1045	0644	edit dl rm
pycore_condvar.h	2809	0644	edit dl rm
pycore_context.h	822	0644	edit dl rm
pycore_dtoa.h	646	0644	edit dl rm
pycore_fileutils.h	1704	0644	edit dl rm
pycore_format.h	480	0644	edit dl rm
pycore_gc.h	6859	0644	edit dl rm
pycore_getopt.h	490	0644	edit dl rm
pycore_gil.h	1565	0644	edit dl rm
pycore_hamt.h	3697	0644	edit dl rm
pycore_hashtable.h	4197	0644	edit dl rm
pycore_import.h	346	0644	edit dl rm
pycore_initconfig.h	5625	0644	edit dl rm
pycore_interp.h	9289	0644	edit dl rm
pycore_list.h	350	0644	edit dl rm
pycore_long.h	2589	0644	edit dl rm
pycore_moduleobject.h	1047	0644	edit dl rm
pycore_object.h	5989	0644	edit dl rm
pycore_parser.h	626	0644	edit dl rm
pycore_pathconfig.h	1981	0644	edit dl rm
pycore_pyarena.h	2733	0644	edit dl rm
pycore_pyerrors.h	2314	0644	edit dl rm
pycore_pyhash.h	206	0644	edit dl rm
pycore_pylifecycle.h	4940	0644	edit dl rm
pycore_pymem.h	3211	0644	edit dl rm
pycore_pystate.h	3938	0644	edit dl rm
pycore_runtime.h	4902	0644	edit dl rm
pycore_structseq.h	386	0644	edit dl rm
pycore_symtable.h	5578	0644	edit dl rm
pycore_sysmodule.h	548	0644	edit dl rm
pycore_traceback.h	2970	0644	edit dl rm
pycore_tuple.h	425	0644	edit dl rm
pycore_ucnhash.h	898	0644	edit dl rm
pycore_unionobject.h	629	0644	edit dl rm
pycore_warnings.h	633	0644	edit dl rm

Edit: /usr/include/python3.10/internal/pycore_atomic_funcs.h (2438B)

/* Atomic functions: similar to pycore_atomic.h, but don't need
   to declare variables as atomic.

Py_ssize_t type:

* value = _Py_atomic_size_get(&var)
   * _Py_atomic_size_set(&var, value)

Use sequentially-consistent ordering (__ATOMIC_SEQ_CST memory order):
   enforce total ordering with all other atomic functions.
*/
#ifndef Py_ATOMIC_FUNC_H
#define Py_ATOMIC_FUNC_H
#ifdef __cplusplus
extern "C" {
#endif

#ifndef Py_BUILD_CORE
#  error "this header requires Py_BUILD_CORE define"
#endif

#if defined(_MSC_VER)
#  include <intrin.h>             // _InterlockedExchange()
#endif

// Use builtin atomic operations in GCC >= 4.7 and clang
#ifdef HAVE_BUILTIN_ATOMIC

static inline Py_ssize_t _Py_atomic_size_get(Py_ssize_t *var)
{
    return __atomic_load_n(var, __ATOMIC_SEQ_CST);
}

static inline void _Py_atomic_size_set(Py_ssize_t *var, Py_ssize_t value)
{
    __atomic_store_n(var, value, __ATOMIC_SEQ_CST);
}

#elif defined(_MSC_VER)

static inline Py_ssize_t _Py_atomic_size_get(Py_ssize_t *var)
{
#if SIZEOF_VOID_P == 8
    Py_BUILD_ASSERT(sizeof(__int64) == sizeof(*var));
    volatile __int64 *volatile_var = (volatile __int64 *)var;
    __int64 old;
    do {
        old = *volatile_var;
    } while(_InterlockedCompareExchange64(volatile_var, old, old) != old);
#else
    Py_BUILD_ASSERT(sizeof(long) == sizeof(*var));
    volatile long *volatile_var = (volatile long *)var;
    long old;
    do {
        old = *volatile_var;
    } while(_InterlockedCompareExchange(volatile_var, old, old) != old);
#endif
    return old;
}

static inline void _Py_atomic_size_set(Py_ssize_t *var, Py_ssize_t value)
{
#if SIZEOF_VOID_P == 8
    Py_BUILD_ASSERT(sizeof(__int64) == sizeof(*var));
    volatile __int64 *volatile_var = (volatile __int64 *)var;
    _InterlockedExchange64(volatile_var, value);
#else
    Py_BUILD_ASSERT(sizeof(long) == sizeof(*var));
    volatile long *volatile_var = (volatile long *)var;
    _InterlockedExchange(volatile_var, value);
#endif
}

#else
// Fallback implementation using volatile

static inline Py_ssize_t _Py_atomic_size_get(Py_ssize_t *var)
{
    volatile Py_ssize_t *volatile_var = (volatile Py_ssize_t *)var;
    return *volatile_var;
}

static inline void _Py_atomic_size_set(Py_ssize_t *var, Py_ssize_t value)
{
    volatile Py_ssize_t *volatile_var = (volatile Py_ssize_t *)var;
    *volatile_var = value;
}
#endif

#ifdef __cplusplus
}
#endif
#endif  /* Py_ATOMIC_FUNC_H */

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