The Worker class

(PECL pthreads >= 2.0.0)

Einführung

Worker Threads have a persistent context, as such should be used over Threads in most cases.

When a Worker is started, the run method will be executed, but the Thread will not leave until one of the following conditions are met:

the Worker goes out of scope (no more references remain)
the programmer calls shutdown
the script dies

This means the programmer can reuse the context throughout execution; placing objects on the stack of the Worker will cause the Worker to execute the stacked objects run method.

Klassenbeschreibung

class Worker extends Thread implements Traversable, Countable, ArrayAccess {

/* Methoden */

public collect(Callable $collector = ?): int

public getStacked(): int

public isShutdown(): bool

public shutdown(): bool

public stack(Threaded &$work): int

public unstack(): int

/* Geerbte Methoden */

public Thread::getCreatorId(): int

public static Thread::getCurrentThread(): Thread

public static Thread::getCurrentThreadId(): int

public Thread::getThreadId(): int

public Thread::isJoined(): bool

public Thread::isStarted(): bool

public Thread::join(): bool

public Thread::start(int $options = ?): bool

}

Inhaltsverzeichnis

Worker::collect — Collect references to completed tasks
Worker::getStacked — Gets the remaining stack size
Worker::isShutdown — State Detection
Worker::shutdown — Shutdown the worker
Worker::stack — Stacking work
Worker::unstack — Unstacking work

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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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