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1ab4520c30
Extend the zend_atomic API for ints. Also add `zend_atomic_*_compare_exchange()`, `ZEND_ATOMIC_*_INITIALIZER()`.
76 lines
2.8 KiB
C
76 lines
2.8 KiB
C
/*
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| https://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Levi Morrison <morrison.levi@gmail.com> |
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+----------------------------------------------------------------------+
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*/
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#include "zend_atomic.h"
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/* This file contains the non-inline copy of atomic functions. This is useful
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* for extensions written in languages such as Rust. C and C++ compilers are
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* probably going to inline these functions, but in the case they don't, this
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* is also where the code will go.
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*/
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/* Defined for FFI users; everyone else use ZEND_ATOMIC_*_INIT.
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* This is NOT ATOMIC as it is meant for initialization.
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*/
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ZEND_API void zend_atomic_bool_init(zend_atomic_bool *obj, bool desired) {
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ZEND_ATOMIC_BOOL_INIT(obj, desired);
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}
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ZEND_API void zend_atomic_int_init(zend_atomic_int *obj, int desired) {
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ZEND_ATOMIC_INT_INIT(obj, desired);
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}
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ZEND_API bool zend_atomic_bool_exchange(zend_atomic_bool *obj, bool desired) {
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return zend_atomic_bool_exchange_ex(obj, desired);
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}
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ZEND_API int zend_atomic_int_exchange(zend_atomic_int *obj, int desired) {
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return zend_atomic_int_exchange_ex(obj, desired);
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}
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ZEND_API bool zend_atomic_bool_compare_exchange(zend_atomic_bool *obj, bool *expected, bool desired)
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{
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return zend_atomic_bool_compare_exchange_ex(obj, expected, desired);
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}
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ZEND_API bool zend_atomic_int_compare_exchange(zend_atomic_int *obj, int *expected, int desired)
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{
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return zend_atomic_int_compare_exchange_ex(obj, expected, desired);
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}
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ZEND_API void zend_atomic_bool_store(zend_atomic_bool *obj, bool desired) {
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zend_atomic_bool_store_ex(obj, desired);
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}
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ZEND_API void zend_atomic_int_store(zend_atomic_int *obj, int desired) {
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zend_atomic_int_store_ex(obj, desired);
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}
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#if defined(ZEND_WIN32) || defined(HAVE_SYNC_ATOMICS)
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/* On these platforms it is non-const due to underlying APIs. */
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ZEND_API bool zend_atomic_bool_load(zend_atomic_bool *obj) {
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return zend_atomic_bool_load_ex(obj);
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}
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ZEND_API int zend_atomic_int_load(zend_atomic_int *obj) {
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return zend_atomic_int_load_ex(obj);
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}
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#else
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ZEND_API bool zend_atomic_bool_load(const zend_atomic_bool *obj) {
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return zend_atomic_bool_load_ex(obj);
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}
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ZEND_API int zend_atomic_int_load(const zend_atomic_int *obj) {
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return zend_atomic_int_load_ex(obj);
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}
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#endif
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