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このドキュメントでは、 php中国語ネットマニュアル リリース
(PECL sync >= 1.0.0)
SyncMutex::lock — Waits for an exclusive lock
$wait
] )Obtains an exclusive lock on a SyncMutex object. If the lock is already acquired, then this increments an internal counter.
wait
The number of milliseconds to wait for the exclusive lock. A value of -1 is infinite.
A boolean of TRUE if the lock was obtained, FALSE otherwise.
Example #1 SyncMutex::lock() example
<?php
$mutex = new SyncMutex ( "UniqueName" );
if (! $mutex -> lock ( 3000 ))
{
echo "Unable to lock mutex." ;
exit();
}
$mutex -> unlock ();
?>