Pool::__construct

(PECL pthreads >= 2.0.0)

Pool::__construct — Creates a new Pool of Workers

Description

public function Pool::__construct(int $size, string $class = ?, array $ctor = ?)

Construct a new pool of workers. Pools lazily create their threads, which means new threads will only be spawned when they are required to execute tasks.

Parameters

size: The maximum number of workers for this pool to create
class: The class for new Workers. If no class is given, then it defaults to the Worker class.
ctor: An array of arguments to be passed to new workers' constructors

Examples

Example #1 Creating Pools

<?php
class MyWorker extends Worker {

    public function __construct(Something $something) {
        $this->something = $something;
    }

    public function run() {
        /** ... **/
    }
}

$pool = new Pool(8, \MyWorker::class, [new Something()]);

var_dump($pool);
?>

The above example will output:

object(Pool)#1 (6) {
  ["size":protected]=>
  int(8)
  ["class":protected]=>
  string(8) "MyWorker"
  ["workers":protected]=>
  NULL
  ["work":protected]=>
  NULL
  ["ctor":protected]=>
  array(1) {
    [0]=>
    object(Something)#2 (0) {
    }
  }
  ["last":protected]=>
  int(0)
}