The Threaded class

(PECL pthreads >= 2.0.0)

Introduction

Threaded objects form the basis of pthreads ability to execute user code in parallel; they expose synchronization methods and various useful interfaces.

Threaded objects, most importantly, provide implicit safety for the programmer; all operations on the object scope are safe.

Class synopsis

Threaded implements Collectable , Traversable , Countable , ArrayAccess {
/* Methods */
public chunk (int $size , bool $preserve ): array
public count ( ): int
public extend (string $class ): bool
public from (Closure $run , Closure $construct = ? , array $args = ? ): Threaded
public getTerminationInfo ( ): array
public isRunning ( ): bool
public isTerminated ( ): bool
public isWaiting ( ): bool
public lock ( ): bool
public merge (mixed $from , bool $overwrite = ? ): bool
public notify ( ): bool
public notifyOne ( ): bool
public pop ( ): bool
public run ( ): void
public shift ( ): mixed
public synchronized (Closure $block , mixed ...$args ): mixed
public unlock ( ): bool
public wait (int $timeout = ? ): bool
}

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User Contributed Notes 3 notes

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1
jtbibliomania at gmail dot com
1 year ago
It's worth mentioning here that, since v2.0.0, 'Stackable' class was an alias for 'Threaded' class but has been removed since.
up
4
derkontrollfreak+php at gmail dot com
5 years ago
> Threaded objects, most importantly, provide implicit safety for the programmer; all operations on the object scope are safe.

However, this comes with a trade-off: Operations on the instance scope are slower than on plain PHP objects.

Static properties are not affected as they are thread-local.
up
-46
312036773 at qq dot com
5 years ago
<?php

class Wallet{
    public
$balance;
    public function
__construct($money){
       
$this->balance = $money;
    }
    public function
getBalance(){
        return
$this->balance;
    }
    public function
setBalance($value){
       
$this->balance = $value;
    }
}
class
MyThread extends Thread{
    private
$wallet;
    private
$std;
    public function
__construct($wallet,$std){
       
$this->wallet = $wallet;
       
$this->std = $std;
    }
    public function
run(){
       
$this->synchronized(function($thread){
               
$hack = $this->wallet;
                if(
$hack->getBalance() - 80 >0){
                   
sleep(1);
                   
$hack->setBalance($hack->getBalance() - 80);
                    echo
$this->getThreadId() . "reduce 80 successful<br/>Current num is:" . $hack->getBalance() . "<Br/>";
                   
//Here is Wrong!  The result is bool(false)????!!!!
                   
var_dump($hack == $this->wallet);
                }
                 else
                     echo
$this->getThreadId() . "reduce fail<br/>Current num is:" . $hack->getBalance() . "<br/>";
           
        },
$this->std);
    }
}
$wallet = new Wallet(200);
$std = new stdClass();
for(
$x=0;$x<3;$x++){
   
$pool[] = new MyThread($wallet,$std);
   
$pool[$x]->start();
}
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