PHP
处理控制 | Process Control

SyncReaderWriter::writelock

SyncReaderWriter::writelock

(PECL sync >= 1.0.0)

SyncReaderWriter::writelock — Waits for an exclusive write lock

Description

public bool SyncReaderWriter::writelock ([ integer $wait = -1 ] )

Obtains an exclusive write lock on a SyncReaderWriter object.

Parameters

wait

The number of milliseconds to wait for a lock. A value of -1 is infinite.

Return Values

A boolean of TRUE if the lock was obtained, FALSE otherwise.

Examples

Example #1 SyncReaderWriter::writelock() example

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

See Also

  • SyncReaderWriter::writeunlock() - Releases a write lock

← SyncReaderWriter::readunlock

SyncReaderWriter::writeunlock →

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