Makes signal event pending

Event::add
Event::addTimer
Event
PHP Manual

# Event::addSignal

(PECL event >= 1.2.6-beta)

Event::addSignal — Makes signal event pending

### Description

public bool Event::addSignal ([ double `$timeout` ] )

Event::addSignal() is an alias of Event::add()

### Examples

Example #1 Event::addSignal() example

`<?php
/*
Launch it in a terminal window:
$ php examples/signal.php
In another terminal window find out the pid and send SIGTERM, e.g.:
$ ps aux | grep examp
ruslan 3976 0.2 0.0 139896 11256 pts/1 S+ 10:25 0:00 php examples/signal.php
ruslan 3978 0.0 0.0 9572 864 pts/2 S+ 10:26 0:00 grep --color=auto examp
$ kill -TERM 3976
At the first terminal window you should catch the following:
Caught signal 15
*/
class MyEventSignal {
private $base, $ev;
public function __construct($base) {
$this->base = $base;
$this->ev = Event::signal($base, SIGTERM, array($this, 'eventSighandler'));
$this->ev->addSignal();
}
public function eventSighandler($no, $c) {
echo "Caught signal $no\n";
$this->base->exit();
}
}
$base = new EventBase();
$c = new MyEventSignal($base);
$base->loop();
?>`

The above example will output something similar to:

    Caught signal 15

### See Also

- Event::add() - Makes event pending
- Event::del() - Makes event non-pending
- Event::delSignal() - Makes signal event non-pending
- Event::signal() - Constructs signal event object

Event::add
Event::addTimer
Event
PHP Manual