100 lines
2.3 KiB
PHP
100 lines
2.3 KiB
PHP
<?php
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/**
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* The SocketPool class that will handle all the sockets.
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* Manages a pool of socket ressources with socket_select()
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* @author jpt
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* @package Socket
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*/
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class Socket_SocketPool {
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/**
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* Pool that contains socket ressources.
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* @var array
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*/
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protected $sockets;
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/**
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* Creates sockets.
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* @return void
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*/
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function __construct() {
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$this->sockets = array();
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}
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/**
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* Closes all connections.
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* @return void
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*/
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function __destruct() {
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unset($this->sockets);
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}
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/**
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* Returns the amount of active sockets.
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* @return int
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*/
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public function countSockets() {
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return count($this->sockets);
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}
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/**
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* Adds a socket to the pool
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* @param ressource $add_socket
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* @return void
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*/
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public function addSocket($add_socket) {
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array_push($this->sockets, $add_socket);
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}
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/**
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* Removes the given socket from the pool.
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* The socket will be shutdown.
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* @param ressource $remove_socket
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* @return void
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*/
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public function removeSocket($remove_socket) {
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foreach($this->sockets AS $key=>$socket) {
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if($socket !== $remove_socket) {
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continue;
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} else {
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unset($socket);
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unset($this->sockets[$key]);
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break;
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}
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}
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}
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/**
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* Creates a new TcpSocket and adds it to the pool.
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* @throws Exception_SocketException
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* @param boolean $IPv6 will determine whether the socket uses IPv4 or IPv6.
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* @return ressource
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*/
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public function createTcpSocket($IPv6 = FALSE) {
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$Domain = ($IPv6) ? AF_INET6 : AF_INET;
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$socket = socket_create($Domain, SOCK_STREAM, SOL_TCP);
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socket_set_block($socket);
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if($socket === FALSE) throw new Exception_SocketException("socket_create() failed!", 1290273709);
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$this->addSocket($socket);
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return $socket;
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}
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/**
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* Returns an array of sockets one can read from.
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* @param array $read
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* @param array $write
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* @param array $except
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* @param int $timeout
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* @throws Exception_SocketException
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* @return array
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*/
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public function select($read, $write, $except, $timeout = NULL) {
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$n = socket_select($read, $write, $except, $timeout);
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if($n === FALSE) throw new Exception_SocketException("socket_select() failed!", 1290273693);
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if($n === 0) return array("read" => array(), "write" => array(), "except" => array());
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return array("read" => $read, "write" => $write, "except" => $except);
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}
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}
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?>
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