PHP 8.3.0 RC 6 available for testing

Worker 类

(PECL pthreads >= 2.0.0)

简介

Worker 是一个具有持久化上下文的线程对象,通常用来在多个线程中使用。

当一个 Worker 对象开始之后,会执行它的 run 方法,但是即使 run 方法执行完毕,线程本身也不会消亡,除非遇到以下情况:

  • Worker 对象超出作用范围(没有指向它的引用了)

  • 代码调用了 Worker 对象的 shutdown 方法

  • 整个脚本终止了

这意味着程序员可以在程序执行过程中重用这个线程上下文: 在 Worker 对象的栈中添加对象会激活 Worker 对象执行被加入对象的 run 方法。

类摘要

class Worker extends Thread implements Traversable, Countable, ArrayAccess {
/* 方法 */
public collect(Callable $collector = ?): int
public getStacked(): int
public isShutdown(): bool
public shutdown(): bool
public stack(Threaded &$work): int
public unstack(): int
/* 继承的方法 */
public Thread::getCreatorId(): int
public static Thread::getCurrentThreadId(): int
public Thread::getThreadId(): int
publicThread::isJoined(): bool
publicThread::isStarted(): bool
publicThread::join(): bool
public Thread::start(int $options = ?): bool
}

目录

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User Contributed Notes 1 note

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-5
event2game at gmail dot com
10 years ago
There's one way to shared datas between Workers, that is using Stackable:
<?php
class data extends Stackable{
//private $name;
public function __construct($_name) {
//$this->name = $_name;//if you set any variable, workers will get the variable, so do not set any variable
echo __FILE__.'-'.__LINE__.'<br/>'.chr(10);
}
public function
run(){
echo
__FILE__.'-'.__LINE__.'<br/>'.chr(10);
}
}
class
readWorker extends Worker {
public function
__construct(&$_data) {
$this->data = $_data;//
}
public function
run(){
while(
1){
if(
$arr=$this->data->shift())//receiving datas
{
echo
'Received data:'.print_r($arr,1).chr(10);
}else
usleep(50000);
}
}
}
class
writeWorker extends Worker {
public function
__construct(&$_data) {
$this->data = $_data;//
}
public function
run(){
while(
1){
$this->data[] = array(time(),rand());//writting datas
usleep(rand(50000, 1000000));
}
}

}
$data = new data('');
$reader = new readWorker($data);
$writer = new writeWorker($data);
$reader->start();
$writer->start();
?>
Also you can use $readWorker[] = $some_data; then use $this->shift() in readWorker to share datas with readWorker, but if you do so you can't have variables in readWorker as all variales will be shift by shift();
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