/**
* fork() helper method for php-resque that handles issues PHP socket
* and phpredis have with passing around sockets between child/parent
* processes.
*
* Will close connection to Redis before forking.
*
* @return int Return vars as per pcntl_fork()
*/
public static function fork()
{
if (!function_exists('pcntl_fork')) {
return -1;
}
// Close the connection to Redis before forking.
// This is a workaround for issues phpredis has.
self::$redis = null;
$pid = pcntl_fork();
if ($pid === -1) {
throw new \RuntimeException('Unable to fork child worker.');
}
return $pid;
}