Typedefs | |
typedef apr_global_mutex_t | apr_global_mutex_t |
Functions | |
apr_status_t | apr_global_mutex_create (apr_global_mutex_t **mutex, const char *fname, apr_lockmech_e mech, apr_pool_t *pool) |
apr_status_t | apr_global_mutex_child_init (apr_global_mutex_t **mutex, const char *fname, apr_pool_t *pool) |
apr_status_t | apr_global_mutex_lock (apr_global_mutex_t *mutex) |
apr_status_t | apr_global_mutex_trylock (apr_global_mutex_t *mutex) |
apr_status_t | apr_global_mutex_unlock (apr_global_mutex_t *mutex) |
apr_status_t | apr_global_mutex_destroy (apr_global_mutex_t *mutex) |
apr_pool_t * | apr_global_mutex_pool_get (const apr_global_mutex_t *theglobal_mutex) |
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Opaque global mutex structure. |
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Re-open a mutex in a child process.
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Create and initialize a mutex that can be used to synchronize both processes and threads. Note: There is considerable overhead in using this API if only cross-process or cross-thread mutual exclusion is required. See apr_proc_mutex.h and apr_thread_mutex.h for more specialized lock routines.
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Destroy the mutex and free the memory associated with the lock.
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Acquire the lock for the given mutex. If the mutex is already locked, the current thread will be put to sleep until the lock becomes available.
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Get the pool used by this global_mutex.
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Attempt to acquire the lock for the given mutex. If the mutex has already been acquired, the call returns immediately with APR_EBUSY. Note: it is important that the APR_STATUS_IS_EBUSY(s) macro be used to determine if the return value was APR_EBUSY, for portability reasons.
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Release the lock for the given mutex.
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