(PECL event >= 1.2.6-beta)
EventBase::dispatch — Dispatch pending events
Wait for events to become active, and run their callbacks. The same as EventBase::loop() with no flags set.
     Do
     NOT
     destroy the
     EventBase
     object as long as resources of the associated
     Event
     objects are not released. Otherwise, it will lead to unpredictable
     results!
    
此函数没有参数。
