EvSignal::__construct
(PECL ev >= 0.2.0)
EvSignal::__construct — Constructs EvSignal watcher object
说明
public
EvSignal::__construct (
int
$signum
,
callable $callback
[,
mixed $data
= NULL
[,
int $priority
= 0 ]] )
Constructs EvSignal watcher object and starts it automatically. For a stopped periodic watcher consider using EvSignal::createStopped() method.
参数
-
signum
-
Signal number. See constants exported by pcntl extension. See also signal(7) man page.
-
callback
-
See Watcher callbacks .
-
data
-
Custom data associated with the watcher.
-
priority
返回值
Returns EvSignal object on success.
范例
Example #1 Handle SIGTERM signal
<?php
$w = new EvSignal(SIGTERM, function ($watcher) {
echo "SIGTERM received\n";
$watcher->stop();
});
Ev::run();
?>
参见
- EvSignal::createStopped() - Create stopped EvSignal watcher object