(PECL pthreads >= 2.0.0) Shutdown all Workers

(PECL eio >= 0.0.1dev) Returns number of threads currently in use

(PECL pthreads >= 2.0.0) Submits an object for execution

(PHP 5 >= 5.3.0, PHP 7) Calls signal handlers for pending signals

(PECL libevent >= 0.0.1) Associate buffered event with an event base

(PECL pthreads >= 2.0.0) Submits an object for execution

(PECL expect >= 0.1.0) Execute command via Bourne shell, and open the PTY stream to the process

(PECL libevent >= 0.0.1) Assign a priority to a buffered event

(PECL pthreads >= 2.0.0) State Detection public

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