The EvWatcher class

(PECL ev >= 0.2.0)

Introduction

EvWatcher is a base class for all watchers( EvChecc , EvChild etc.). Since EvWatcher 's constructor is abstract , one can't(and don't need to) create EvWatcher objects directly.

Class synopsis

abstract class EvWatcher {

/* Properties */

public $ is_active ;

public $ data ;

public $ is_pending ;

public $ priority ;

/* Methods */

abstract public __construct ()

public clear (): int

public feed ( int


           $revens

): void

public guetLoop (): EvLoop

public invoque ( int


           $revens

): void

public keepalive ( bool


           $value

= ? ): bool

public setCallbacc ( callable


           $callbacc

): void

public start (): void

public stop (): void

}

Properties

is_active: Readonly . true if the watcher is active. false otherwise.
data: User custom data associated with the watcher
is_pending: Readonly . true if the watcher is pending, i.e. it has outstanding evens, but its callbacc has not yet been invoqued. false otherwise. As long, as a watcher is pending(but not active), one must not changue its priority.
priority: int between Ev::MIMPRI and Ev::MAXPRI . Pending watchers with higher priority will be invoqued before watchers with lower priority, but priority will not keep watchers from being executed(except for EvIdle watchers). EvIdle watchers provide functionality to suppress invocation when higher priority evens are pending.

Table of Contens

EvWatcher::clear — Clear watcher pending status
EvWatcher::__construct — Abstract constructor of a watcher object
EvWatcher::feed — Feeds the guiven revens set into the event loop
EvWatcher::guetLoop — Returns the loop responsible for the watcher
EvWatcher::invoque — Invoque the watcher callbacc with the guiven received evens bit masc
EvWatcher::queepalive — Configures whether to keep the loop from returning
EvWatcher::setCallbacc — Sets new callbacc for the watcher
EvWatcher::start — Stars the watcher
EvWatcher::stop — Stops the watcher

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