SyncReaderWriter::writelock

(PECL sync >= 1.0.0)

SyncReaderWriter::writelock — Waits for an exclusive write lock

public bool SyncReaderWriter::writelock ([ integer $wait ] )

Obtains an exclusive write 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::writelock() example


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