Класс Threaded

(PECL pthreads >= 2.0.0)

Введение

Объекты Threaded формируют базис способности pthreads запускать пользовательский код в новых потоках. Класс содержит методы синхронизации и различные полезные интерфейсы.

Самое важное, что объекты Threaded обеспечивают безопасность для разработчика. Все операции в контексте объекта - безопасны.

Обзор классов

class Threaded implements Collectable, Traversable, Countable, ArrayAccess {
/* Методы */
public chunk(int $size, bool $preserve): array
public count(): int
public extend(string $class): bool
public isRunning(): bool
public isTerminated(): 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 wait(int $timeout = ?): bool
}

Содержание

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User Contributed Notes 3 notes

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1
jtbibliomania at gmail dot com
4 years 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
8 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
8 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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