PHP - Manual: SyncReaderWriter::writelock
2024-11-14
(PECL sync >= 1.0.0)
SyncReaderWriter::writelock — Waits for an exclusive write lock
$wait
= -1): boolObtains an exclusive write lock on a SyncReaderWriter object.
wait
The number of milliseconds to wait for a lock. A value of -1 is infinite.
成功时返回 true
, 或者在失败时返回 false
。
示例 #1 SyncReaderWriter::writelock() example
<?php
$readwrite = new SyncReaderWriter("FileCacheLock");
$readwrite->writelock();
/* ... */
$readwrite->writeunlock();
?>
官方地址:https://www.php.net/manual/en/syncreaderwriter.writelock.php