SyncEvent::__construct
(PECL sync >= 1.0.0)
SyncEvent::__construct — Constructs a new SyncEvent object
说明
Constructs a named or unnamed event object.
参数
-
name -
The name of the event if this is a named event object.
注意:
If the name already exists, it must be able to be opened by the current user that the process is running as or an exception will be thrown with a meaningless error message.
-
manual -
Specifies whether or not the event object must be reset manually.
注意:
Manual reset event objects allow all waiting processes through until the object is reset.
-
prefire -
Specifies whether or not to prefire (signal) the event object.
注意:
Only has impact if the calling process/thread is the first to create the object.
返回值
The new SyncEvent object.
错误／异常
An exception is thrown if the event object cannot be created or opened.
示例
示例 #1 SyncEvent::__construct() example
<?php
// In a web application:
$event = new SyncEvent("GetAppReport");
$event->fire();
// In a cron job:
$event = new SyncEvent("GetAppReport");
$event->wait();
?>更新日志
| 版本 | 说明 |
|---|---|
| PECL sync 1.1.0 |
Added |
参见
- SyncEvent::fire() - Fires/sets the event
- SyncEvent::reset() - Resets a manual event
- SyncEvent::wait() - Waits for the event to be fired/set
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