SyncEvent::__construct

(PECL sync >= 1.0.0)

SyncEvent::__construct — Constructs a new SyncEvent object

说明

public SyncEvent::__construct(string $name = ?, bool $manual = false, bool $prefire = false)

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.

范例

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 `prefire`.

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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官方地址：https://www.php.net/manual/en/syncevent.construct.php

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SyncEvent::__construct

说明

参数

返回值

错误／异常

范例

更新日志

参见

User Contributed Notes