SyncSemaphore::lock
(PECL sync >= 1.0.0)
SyncSemaphore::lock — Decreases the count of the semaphore or waits
Descrizione
Decreases the count of a SyncSemaphore object or waits until the semaphore becomes non-zero.
Elenco dei parametri
-
wait -
The number of milliseconds to wait for the semaphore. A value of -1 is infinite.
Valori restituiti
Restituisce true in caso di successo, false in caso di fallimento.
Esempi
Example #1 SyncSemaphore::lock() example
<?php
$semaphore = new SyncSemaphore("LimitedResource_2clients", 2);
if (!$semaphore->lock(3000))
{
echo "Unable to lock semaphore.";
exit();
}
/* ... */
$semaphore->unlock();
?>Vedere anche:
- SyncSemaphore::unlock() - Increases the count of the semaphore
add a note
User Contributed Notes
There are no user contributed notes for this page.
