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Issue #338: Add mutex implementation.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| /* | ||
| +----------------------------------------------------------------------+ | ||
| | APCu | | ||
| +----------------------------------------------------------------------+ | ||
| | Copyright (c) 2013 The PHP Group | | ||
| +----------------------------------------------------------------------+ | ||
| | This source file is subject to version 3.01 of the PHP license, | | ||
| | that is bundled with this package in the file LICENSE, and is | | ||
| | available through the world-wide-web at the following url: | | ||
| | http://www.php.net/license/3_01.txt | | ||
| | If you did not receive a copy of the PHP license and are unable to | | ||
| | obtain it through the world-wide-web, please send a note to | | ||
| | license@php.net so we can mail you a copy immediately. | | ||
| +----------------------------------------------------------------------+ | ||
| | Author: Fabian Franz <fabian@lionsad.de> | | ||
| +----------------------------------------------------------------------+ | ||
| */ | ||
| #include "apc_mutex.h" | ||
|
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| #ifdef APC_HAS_PTHREAD_MUTEX | ||
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| static zend_bool apc_mutex_ready = 0; | ||
| static pthread_mutexattr_t apc_mutex_attr; | ||
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| PHP_APCU_API zend_bool apc_mutex_init() { | ||
| if (apc_mutex_ready) { | ||
| return 1; | ||
| } | ||
| apc_mutex_ready = 1; | ||
|
|
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| if (pthread_mutexattr_init(&apc_mutex_attr) != SUCCESS) { | ||
| return 0; | ||
| } | ||
|
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| if (pthread_mutexattr_setpshared(&apc_mutex_attr, PTHREAD_PROCESS_SHARED) != SUCCESS) { | ||
| return 0; | ||
| } | ||
|
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| return 1; | ||
| } | ||
|
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| PHP_APCU_API void apc_mutex_cleanup() { | ||
| if (!apc_mutex_ready) { | ||
| return; | ||
| } | ||
| apc_mutex_ready = 0; | ||
|
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| pthread_mutexattr_destroy(&apc_mutex_attr); | ||
| } | ||
|
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| PHP_APCU_API zend_bool apc_mutex_create(apc_mutex_t *lock) { | ||
| pthread_mutex_init(lock, &apc_mutex_attr); | ||
| return 1; | ||
| } | ||
|
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| PHP_APCU_API zend_bool apc_mutex_lock(apc_mutex_t *lock) { | ||
| HANDLE_BLOCK_INTERRUPTIONS(); | ||
| if (pthread_mutex_lock(lock) == 0) { | ||
| return 1; | ||
| } | ||
|
|
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| HANDLE_UNBLOCK_INTERRUPTIONS(); | ||
| apc_warning("Failed to acquire lock"); | ||
| return 0; | ||
| } | ||
|
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| PHP_APCU_API zend_bool apc_mutex_unlock(apc_mutex_t *lock) { | ||
| pthread_mutex_unlock(lock); | ||
| HANDLE_UNBLOCK_INTERRUPTIONS(); | ||
| return 1; | ||
| } | ||
|
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| PHP_APCU_API void apc_mutex_destroy(apc_mutex_t *lock) { | ||
| pthread_mutex_destroy(lock); | ||
| } | ||
|
|
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| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| /* | ||
| +----------------------------------------------------------------------+ | ||
| | APCu | | ||
| +----------------------------------------------------------------------+ | ||
| | Copyright (c) 2013 The PHP Group | | ||
| +----------------------------------------------------------------------+ | ||
| | This source file is subject to version 3.01 of the PHP license, | | ||
| | that is bundled with this package in the file LICENSE, and is | | ||
| | available through the world-wide-web at the following url: | | ||
| | http://www.php.net/license/3_01.txt | | ||
| | If you did not receive a copy of the PHP license and are unable to | | ||
| | obtain it through the world-wide-web, please send a note to | | ||
| | license@php.net so we can mail you a copy immediately. | | ||
| +----------------------------------------------------------------------+ | ||
| | Author: Joe Watkins <joe.watkins@live.co.uk> | | ||
| +----------------------------------------------------------------------+ | ||
| */ | ||
|
|
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| #ifndef APC_MUTEX_H | ||
| #define APC_MUTEX_H | ||
|
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| #include "apc.h" | ||
|
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| #ifdef APC_HAS_PTHREAD_MUTEX | ||
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| #include "pthread.h" | ||
|
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| typedef pthread_mutex_t apc_mutex_t; | ||
|
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| PHP_APCU_API zend_bool apc_mutex_init(); | ||
| PHP_APCU_API void apc_mutex_cleanup(); | ||
| PHP_APCU_API zend_bool apc_mutex_create(apc_mutex_t *lock); | ||
| PHP_APCU_API zend_bool apc_mutex_lock(apc_mutex_t *lock); | ||
| PHP_APCU_API zend_bool apc_mutex_unlock(apc_mutex_t *lock); | ||
| PHP_APCU_API void apc_mutex_destroy(apc_mutex_t *lock); | ||
|
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| #define APC_MUTEX_INIT() apc_mutex_init() | ||
| #define APC_MUTEX_CLEANUP() apc_mutex_cleanup() | ||
|
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| #define APC_CREATE_MUTEX(lock) apc_mutex_create(lock) | ||
| #define APC_DESTROY_MUTEX(lock) apc_mutex_destroy(lock) | ||
| #define APC_MUTEX_LOCK(lock) apc_mutex_lock(lock) | ||
| #define APC_MUTEX_UNLOCK(lock) apc_mutex_unlock(lock) | ||
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| #else | ||
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| #include "apc_lock.h" | ||
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| typedef apc_lock_t apc_mutex_t; | ||
|
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| // Fallback to normal locks | ||
|
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| #define APC_MUTEX_INIT() | ||
| #define APC_MUTEX_CLEANUP() | ||
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| #define APC_CREATE_MUTEX(lock) CREATE_LOCK(lock) | ||
| #define APC_DESTROY_MUTEX(lock) DESTROY_LOCK(lock) | ||
| #define APC_MUTEX_LOCK(lock) WLOCK(lock) | ||
| #define APC_MUTEX_UNLOCK(lock) WUNLOCK(lock) | ||
|
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| #endif | ||
|
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| #endif |
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