maikgreubel / phpgenerics

src/Generics/Socket/ServerSocket.php

<?php

/**
 * This file is part of the PHP Generics package.
 *
 * @package Generics
 */
namespace Generics\Socket;

/**
 * This class provides a basic client socket implementation
 *
 * @author Maik Greubel <greubel@nkey.de>
 */
class ServerSocket extends Socket
{

    /**
     * Create a new server socket
     *
     * @param Endpoint $endpoint
     *            The endpoint to use
     *
     * @throws SocketException In case of creation of socket has failed or socket options could not be set.
     */
    public function __construct(Endpoint $endpoint)
    {
        parent::__construct($endpoint);
        if (! @socket_set_option($this->handle, SOL_SOCKET, SO_REUSEADDR, 1)) {
            $code = socket_last_error($this->handle);
            throw new SocketException(socket_strerror($code), array(), $code);
        }
    }

    /**
     * Creates a service at the given endpoint
     *
     * @throws SocketException in case of it is not possible to serve due to binding or listening error
     */
    public function serve(ServiceCallback $callback)
    {
        $this->bind();
        
        $this->listen();
        
        $runOn = true;
        
        while ($runOn) {
            $clientHandle = @socket_accept($this->handle);
            
            if (! is_resource($clientHandle)) {
                $code = socket_last_error($this->handle);
                throw new SocketException(socket_strerror($code), array(), $code);
            }
            
            $address = null;
            $port = 0;
            if (! @socket_getpeername($clientHandle, $address, $port)) {
                $code = socket_last_error($clientHandle);
                throw new SocketException(socket_strerror($code), array(), $code);
            }
            
            $client = new ClientSocket(new Endpoint($address, $port), $clientHandle);
            
            $runOn = boolval($callback->callback($client));
        }
    }

    /**
     * Bind the server socket to the given endpoint
     *
     * @throws SocketException in case of binding has failed
     */
    private function bind()
    {
        if (! @socket_bind($this->handle, $this->endpoint->getAddress(), $this->endpoint->getPort())) {

This code seems to be duplicated across your project.

            $code = socket_last_error($this->handle);
            throw new SocketException(socket_strerror($code), array(), $code);
        }
    }

    /**
     * Listen to the binded socket endpoint
     *
     * @throws SocketException in case of listening is not possible
     */
    private function listen()
    {
        if (! @socket_listen($this->handle, 5)) {
            $code = socket_last_error($this->handle);
            throw new SocketException(socket_strerror($code), array(), $code);
        }
    }
}