Typedefs | |
typedef apr_proc_mutex_t | apr_proc_mutex_t |
Enumerations | |
enum | apr_lockmech_e { APR_LOCK_FCNTL, APR_LOCK_FLOCK, APR_LOCK_SYSVSEM, APR_LOCK_PROC_PTHREAD, APR_LOCK_POSIXSEM, APR_LOCK_DEFAULT } |
Functions | |
apr_status_t | apr_proc_mutex_create (apr_proc_mutex_t **mutex, const char *fname, apr_lockmech_e mech, apr_pool_t *pool) |
apr_status_t | apr_proc_mutex_child_init (apr_proc_mutex_t **mutex, const char *fname, apr_pool_t *pool) |
apr_status_t | apr_proc_mutex_lock (apr_proc_mutex_t *mutex) |
apr_status_t | apr_proc_mutex_trylock (apr_proc_mutex_t *mutex) |
apr_status_t | apr_proc_mutex_unlock (apr_proc_mutex_t *mutex) |
apr_status_t | apr_proc_mutex_destroy (apr_proc_mutex_t *mutex) |
apr_status_t | apr_proc_mutex_cleanup (void *mutex) |
const char * | apr_proc_mutex_lockfile (apr_proc_mutex_t *mutex) |
const char * | apr_proc_mutex_name (apr_proc_mutex_t *mutex) |
const char * | apr_proc_mutex_defname (void) |
apr_pool_t * | apr_proc_mutex_pool_get (const apr_proc_mutex_t *theproc_mutex) |
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Opaque structure representing a process mutex. |
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Enumerated potential types for APR process locking methods
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Re-open a mutex in a child process.
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Destroy the mutex and free the memory associated with the lock.
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Create and initialize a mutex that can be used to synchronize processes.
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Display the name of the default mutex: APR_LOCK_DEFAULT |
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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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Return the name of the lockfile for the mutex, or NULL if the mutex doesn't use a lock file |
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Display the name of the mutex, as it relates to the actual method used. This matches the valid options for Apache's AcceptMutex directive
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Get the pool used by this proc_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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