SyncSemaphore::unlock
(PECL sync >= 1.0.0)
SyncSemaphore::unlock — Increases the count of the semaphore
说明
Increases the count of a SyncSemaphore object.
参数
-
prevcount -
Returns the previous count of the semaphore.
返回值
成功时返回 true， 或者在失败时返回 false。
示例
示例 #1 SyncSemaphore::unlock() example
<?php
$semaphore = new SyncSemaphore("LimitedResource_2clients", 2);
if (!$semaphore->lock(3000))
{
echo "Unable to lock semaphore.";
exit();
}
/* ... */
$semaphore->unlock();
?>参见
- SyncSemaphore::lock() - Decreases the count of the semaphore or waits
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