(PECL ev >= 0.2.0)
Ev::suspend — Suspend the default event loop
Ev::suspend() and Ev::resume() methods suspend and resume the default loop correspondingly.
All timer watchers will be delayed by the time spend between suspend and resume , and all periodic watchers will be rescheduled(that is, they will lose any events that would have occurred while suspended).
This function has no parameters.
No value is returned.