php教程

php手册

The EvSignal class

(PECL ev >= 0.2.0)

简介

EvSignal watchers will trigger an event when the process receives a specific signal one or more times. Even though signals are very asynchronous, libev will try its best to deliver signals synchronously, i.e. as part of the normal event processing, like any other event.

There is no limit for the number of watchers for the same signal, but only within the same loop, i.e. one can watch for SIGINT in the default loop and for SIGIO in another loop, but it is not allowed to watch for SIGINT in both the default loop and another loop at the same time. At the moment, SIGCHLD is permanently tied to the default loop.

If possible and supported, libev will install its handlers with SA_RESTART (or equivalent) behaviour enabled, so system calls should not be unduly interrupted. In case of a problem with system calls getting interrupted by signals, all the signals can be blocked in an EvCheck watcher and unblocked in a EvPrepare watcher.

类摘要

EvSignal extends EvWatcher {

/* 属性 */

public $signum ;

/* 继承的属性 */

public $is_active ;

public $data ;

public $is_pending ;

public $priority ;

/* 方法 */

public __construct ( int $signum , callable $callback [, mixed $data = NULL [, int $priority = 0 ]] )

final public static createStopped ( int $signum , callable $callback [, mixed $data = NULL [, int $priority = 0 ]] ) : EvSignal

public set ( int $signum ) : void

/* 继承的方法 */

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

}

属性

signum: Signal number. See the constants exported by pcntl extension. See also signal(7) man page.

EvSignal::__construct — Constructs EvSignal watcher object
EvSignal::createStopped — Create stopped EvSignal watcher object
EvSignal::set — Configures the watcher

User Contributed Notes

There are no user contributed notes for this page.

php教程 php手册 php手册

The EvSignal class

简介

类摘要

属性

Table of Contents

User Contributed Notes

php教程

php手册