Rechercher une fonction PHP

The EvIdle class

Contents

(PECL ev >= 0.2.0)

Introduction

EvIdle watchers trigger events when no other events of the same or higher priority are pending ( EvPrepare , EvCheck and other EvIdle watchers do not count as receiving events ).

Thus, as long as the process is busy handling sockets or timeouts(or even signals) of the same or higher priority it will not be triggered. But when the process is in idle(or only lower-priority watchers are pending), the EvIdle watchers are being called once per event loop iteration - until stopped, that is, or the process receives more events and becomes busy again with higher priority stuff.

Apart from keeping the process non-blocking(which is a useful on its own sometimes), EvIdle watchers are a good place to do "pseudo-background processing" , or delay processing stuff to after the event loop has handled all outstanding events.

The most noticeable effect is that as long as any idle watchers are active, the process will not block when waiting for new events.

PHP: EvIdle - Manual Home of Manuel PHP  Contents Haut

Class synopsis

EvIdle extends EvWatcher {
/* Inherited properties */
public $is_active ;
public $data ;
public $is_pending ;
public $priority ;
/* Methods */
public __construct ( callable $callback [, mixed $data [, int $priority ]] )
final public static createStopped ( string $callback [, mixed $data [, int $priority ]] ) : object
/* Inherited methods */
public EvWatcher::clear ( void ) : int
abstract public EvWatcher::__construct ( void )
public EvWatcher::feed ( int $revents ) : void
public EvWatcher::getLoop ( void ) : EvLoop
public EvWatcher::invoke ( int $revents ) : void
public EvWatcher::keepalive ([ bool $value ] ) : bool
public EvWatcher::setCallback ( callable $callback ) : void
public EvWatcher::start ( void ) : void
public EvWatcher::stop ( void ) : void
}

PHP: EvIdle - Manual Home of Manuel PHP  Contents Haut

Table of Contents

Find a PHP function

English translation

You have asked to visit this site in English. For now, only the interface is translated, but not all the content yet.

If you want to help me in translations, your contribution is welcome. All you need to do is register on the site, and send me a message asking me to add you to the group of translators, which will give you the opportunity to translate the pages you want. A link at the bottom of each translated page indicates that you are the translator, and has a link to your profile.

Thank you in advance.

Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-class.evidle.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.

Contents Haut