SyncReaderWriter::readlock
(PECL sync >= 1.0.0)
SyncReaderWriter::readlock — Waits for a read lock
Description
public SyncReaderWriter::readlock(int $wait = -1): bool
Obtains a read lock on a SyncReaderWriter object.
Parameters
-
wait
-
The number of milliseconds to wait for a lock. A value of -1 is infinite.
Return Values
Returns true
on success or false
on failure.
Examples
Example #1 SyncReaderWriter::readlock() example
<?php $readwrite = new SyncReaderWriter("FileCacheLock"); $readwrite->readlock(); /* ... */ $readwrite->readunlock(); ?>
See Also
- SyncReaderWriter::readunlock() - Releases a read lock
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https://www.php.net/manual/en/syncreaderwriter.readlock.php