SyncReaderWriter::readlock

(PECL sync >= 1.0.0)

SyncReaderWriter::readlock — Waits for a read lock

public bool SyncReaderWriter::readlock ([ integer $wait = -1 ] )

Obtains a read lock on a SyncReaderWriter object.

wait

The number of milliseconds to wait for a lock. A value of -1 is infinite.

A boolean of TRUE if the lock was obtained, FALSE otherwise.

Example #1 SyncReaderWriter::readlock() example

<?php
$readwrite?=?new?SyncReaderWriter("FileCacheLock");
$readwrite->readlock();
/*?...?*/
$readwrite->readunlock();
?>