/**
* @var int $numProcs The number of worker processes to fork
* @var callable $workCallback A callback to call in the child process
* once for each line of work to process.
* @var resource $input A socket to read work lines from
* @var resource $output A socket to write the result of work to.
*/
public function __construct($numProcs, $workCallback, $input, $output)
{
parent::__construct($numProcs);
$this->workCallback = $workCallback;
$this->input = $input;
$this->output = $output;
}
