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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
(PECL ev >= 0.2.0)
EvStat::__construct — Constructs EvStat watcher object
$path
, double $interval
, callable $callback
[, mixed $data
= NULL
[, int $priority
= 0
]] )Constructs EvStat watcher object and starts the watcher automatically.
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
Returns EvStat watcher object on succes.
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 ();
?>