SyncReaderWriter::writelock
(PECL sync >= 1.0.0)
SyncReaderWriter::writelock — Waits for an exclusive write lock
説明
public bool SyncReaderWriter::writelock
([ integer
$wait = -1
] )Obtains an exclusive write lock on a SyncReaderWriter object.
パラメータ
-
wait -
The number of milliseconds to wait for a lock. A value of -1 is infinite.
返り値
A boolean of TRUE if the lock was obtained, FALSE otherwise.
例
例1 SyncReaderWriter::writelock() example
<?php
$readwrite = new SyncReaderWriter("FileCacheLock");
$readwrite->writelock();
/* ... */
$readwrite->writeunlock();
?>
参考
- SyncReaderWriter::writeunlock() - Releases a write lock
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