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    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::getCurrentThread(): Thread
    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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    event2game at gmail dot com
    11 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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