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bpo-39465: Add pycore_atomic_funcs.h header (GH-20766)

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Add pycore_atomic_funcs.h internal header file: similar to
pycore_atomic.h but don't require to declare variables as atomic.

Add _Py_atomic_size_get() and _Py_atomic_size_set() functions.
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Victor Stinner 2020-12-23 03:41:08 +01:00 • committed by GitHub
parent 46b5c6be29
commit 52a327c1cb
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9 changed files with 132 additions and 17 deletions
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6
Include/internal/pycore_atomic.h
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@ -11,8 +11,8 @@ extern "C" {
#include "dynamic_annotations.h" /* _Py_ANNOTATE_MEMORY_ORDER */
#include "pyconfig.h"
#if defined(HAVE_STD_ATOMIC)
#include <stdatomic.h>
#ifdef HAVE_STD_ATOMIC
# include <stdatomic.h>
#endif
@ -62,7 +62,7 @@ typedef struct _Py_atomic_int {
#define _Py_atomic_load_explicit(ATOMIC_VAL, ORDER) \
atomic_load_explicit(&((ATOMIC_VAL)->_value), ORDER)
/* Use builtin atomic operations in GCC >= 4.7 */
// Use builtin atomic operations in GCC >= 4.7 and clang
#elif defined(HAVE_BUILTIN_ATOMIC)
typedef enum _Py_memory_order {