Libevent 函数
PHP Manual

event_add

(PECL libevent >= 0.0.1)

event_addAdd an event to the set of monitored events

说明

bool event_add ( resource $event [, int $timeout = -1 ] )

event_add() schedules the execution of the event when the event specified in event_set() occurs or in at least the time specified by the timeout argument. If timeout was not specified, not timeout is set. The event must be already initalized by event_set() and event_base_set() functions. If the event already has a timeout set, it is replaced by the new one.

参数

event

Valid event resource.

timeout

Optional timeout (in microseconds).

返回值

event_add() returns TRUE on success or FALSE on error.


Libevent 函数
PHP Manual