PHP
处理控制 | Process Control

EvStat::__construct

EvStat::__construct

(PECL ev >= 0.2.0)

EvStat::__construct — Constructs EvStat watcher object

Description

public EvStat::__construct ( string $path , double $interval , callable $callback [, mixed $data = NULL [, int $priority = 0 ]] )

Constructs EvStat watcher object and starts the watcher automatically.

Parameters

path

The path to wait for status changes on.

interval

Hint on how quickly a change is expected to be detected and should normally be specified as 0.0 to let libev choose a suitable value.

callback

See Watcher callbacks .

data

Custom data associated with the watcher.

priority

Watcher priority

Return Values

Returns EvStat watcher object on succes.

Examples

Example #1 Monitor changes of /var/log/messages

<?php // Use 10 second update interval. $w = new EvStat("/var/log/messages", 8, function ($w) {  echo "/var/log/messages changed\n";  $attr = $w->attr(  if ($attr['nlink']) {   printf("Current size: %ld\n", $attr['size']   printf("Current atime: %ld\n", $attr['atime']   printf("Current mtime: %ld\n", $attr['mtime']  } else {   fprintf(STDERR, "`messages` file is not there!"   $w->stop(  } } Ev::run( ?>

← EvStat::attr

EvStat::createStopped →

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https://secure.php.net/manual/en/evstat.construct.php