(PECL ev >= 0.2.0) Creates EvSignal watcher object associated with the current event loop instance

(PHP 5, PHP 7) Change the priority of any process

(PECL pthreads >= 2.0.0) Release Mutex final

(PECL libevent >= 0.0.1) Write data to a buffered event

(PECL libevent >= 0.0.1) Read data from a buffered event

(PHP 5 >= 5.3.0, PHP 7) Check whether a message queue exists

(PHP 4, PHP 5, PHP 7) Release a semaphore bool

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Returns the signal which caused the child to stop

(PECL eio >= 0.0.1dev) Calls Linux' syncfs syscall, if available

(PECL pthreads >= 2.0.0) Shutdown all Workers