sem_release

(PHP 3 >= 3.0.6, PHP 4, PHP 5)

sem_release - Release a semaphore

Описание

bool sem_release ( resource sem_identifier )

sem_release() releases the semaphore if it is currently acquired by the calling process, otherwise a warning is generated.

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

After releasing the semaphore, sem_acquire() may be called to re-acquire it.

Смотрите также sem_get() and sem_acquire().

Описание на ru2.php.net
Описание на php.ru