Php/docs/syncreaderwriter.writelock
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SyncReaderWriter::writelock
(PECL sync >= 1.0.0)
SyncReaderWriter::writelock — Waits for an exclusive write lock
说明
public SyncReaderWriter::writelock
([ int $wait = -1
] ) : bool
Obtains an exclusive write lock on a SyncReaderWriter object.
参数
wait- The number of milliseconds to wait for a lock. A value of -1 is infinite.
返回值
A boolean of TRUE if the lock was obtained, FALSE otherwise.
范例
Example #1 SyncReaderWriter::writelock() example
<?php$readwrite = new SyncReaderWriter("FileCacheLock");$readwrite->writelock();/* ... */$readwrite->writeunlock();?>
