SyncReaderWriter::writelock
(PECL sync >= 1.0.0)
SyncReaderWriter::writelock — Waits for an exclusive write lock
说明
public SyncReaderWriter::writelock(int
$wait
= -1): boolObtains an exclusive write lock on a SyncReaderWriter object.
参数
-
wait
-
The number of milliseconds to wait for a lock. A value of -1 is infinite.
返回值
成功时返回 true
, 或者在失败时返回 false
。
范例
示例 #1 SyncReaderWriter::writelock() example
<?php
$readwrite = new SyncReaderWriter("FileCacheLock");
$readwrite->writelock();
/* ... */
$readwrite->writeunlock();
?>
参见
- SyncReaderWriter::writeunlock() - Releases a write lock
add a note
User Contributed Notes
There are no user contributed notes for this page.
备份地址:http://www.lvesu.com/blog/php/syncreaderwriter.writelock.php