(PECL event >= 1.2.6-beta) Generates entropy by means of OpenSSL's RAND_poll()
(PECL event >= 1.6.0) Sets socket options
(PECL event >= 1.5.0) Retreives the current address to which the socket is bound.
(PECL event >= 1.2.6-beta) Returns the most recent socket error number
(PECL event >= 1.2.6-beta) The abstract constructor
(PECL event >= 1.7.0) Returns numeric file descriptor of a socket, or stream
(PECL event >= 1.2.6-beta) Returns the most recent socket error