<?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 ClientSocket extends Socket
{
/**
* Whether the socket is connected
*
* @var boolean
*/
private $conntected;
/**
* Create a new client socket
*
* @param Endpoint $endpoint
* The endpoint to use
* @param resource $clientHandle
* optional existing client handle
*/
public function __construct(Endpoint $endpoint, $clientHandle = null)
{
$this->endpoint = $endpoint;
$this->handle = $clientHandle;
$this->conntected = false;
if (! is_resource($clientHandle)) {
parent::__construct($endpoint);
}
}
/**
* Connect to remote endpoint
*
* @throws SocketException
*/
public function connect()
{
if (!is_resource($this->handle)) {
throw new SocketException("Socket is not available");
}
if (! @socket_connect($this->handle, $this->endpoint->getAddress(), $this->endpoint->getPort())) {
$code = socket_last_error($this->handle);
throw new SocketException(socket_strerror($code), array(), $code);
}
$this->conntected = true;
}
/**
* Disconnects the socket
*
* @throws SocketException
*/
public function disconnect()
{
if (! $this->conntected) {
throw new SocketException("Socket is not connected");
}
$this->close();
}
/**
* Whether the client is connected
*
* @return bool
*/
public function isConnected():bool
{
return $this->conntected;
}
/**
*
* @see \Generics\Socket\ClientSocket::disconnect()
*/
public function close()
{
parent::close();
$this->conntected = false;
}
/**
*
* {@inheritdoc}
* @see \Generics\Socket\Socket::isWriteable()
*/
public function isWriteable():bool
{
if (! $this->isConnected()) {
return false;
}
return parent::isWriteable();
}
}
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