134 lines
4.7 KiB
C++
134 lines
4.7 KiB
C++
/*************************************************************************/
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/* tcp_server.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "tcp_server.h"
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void TCPServer::_bind_methods() {
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ClassDB::bind_method(D_METHOD("listen", "port", "bind_address"), &TCPServer::listen, DEFVAL("*"));
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ClassDB::bind_method(D_METHOD("is_connection_available"), &TCPServer::is_connection_available);
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ClassDB::bind_method(D_METHOD("is_listening"), &TCPServer::is_listening);
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ClassDB::bind_method(D_METHOD("get_local_port"), &TCPServer::get_local_port);
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ClassDB::bind_method(D_METHOD("take_connection"), &TCPServer::take_connection);
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ClassDB::bind_method(D_METHOD("stop"), &TCPServer::stop);
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}
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Error TCPServer::listen(uint16_t p_port, const IPAddress &p_bind_address) {
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ERR_FAIL_COND_V(!_sock.is_valid(), ERR_UNAVAILABLE);
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ERR_FAIL_COND_V(_sock->is_open(), ERR_ALREADY_IN_USE);
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ERR_FAIL_COND_V(!p_bind_address.is_valid() && !p_bind_address.is_wildcard(), ERR_INVALID_PARAMETER);
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ERR_FAIL_COND_V_MSG(p_port < 0 || p_port > 65535, ERR_INVALID_PARAMETER, "The local port number must be between 0 and 65535 (inclusive).");
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Error err;
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IP::Type ip_type = IP::TYPE_ANY;
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// If the bind address is valid use its type as the socket type
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if (p_bind_address.is_valid()) {
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ip_type = p_bind_address.is_ipv4() ? IP::TYPE_IPV4 : IP::TYPE_IPV6;
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}
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err = _sock->open(NetSocket::TYPE_TCP, ip_type);
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ERR_FAIL_COND_V(err != OK, ERR_CANT_CREATE);
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_sock->set_blocking_enabled(false);
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_sock->set_reuse_address_enabled(true);
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err = _sock->bind(p_bind_address, p_port);
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if (err != OK) {
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_sock->close();
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return ERR_ALREADY_IN_USE;
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}
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err = _sock->listen(MAX_PENDING_CONNECTIONS);
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if (err != OK) {
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_sock->close();
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return FAILED;
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}
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return OK;
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}
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int TCPServer::get_local_port() const {
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uint16_t local_port;
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_sock->get_socket_address(nullptr, &local_port);
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return local_port;
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}
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bool TCPServer::is_listening() const {
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ERR_FAIL_COND_V(!_sock.is_valid(), false);
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return _sock->is_open();
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}
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bool TCPServer::is_connection_available() const {
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ERR_FAIL_COND_V(!_sock.is_valid(), false);
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if (!_sock->is_open()) {
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return false;
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}
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Error err = _sock->poll(NetSocket::POLL_TYPE_IN, 0);
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return (err == OK);
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}
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Ref<StreamPeerTCP> TCPServer::take_connection() {
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Ref<StreamPeerTCP> conn;
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if (!is_connection_available()) {
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return conn;
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}
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Ref<NetSocket> ns;
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IPAddress ip;
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uint16_t port = 0;
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ns = _sock->accept(ip, port);
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if (!ns.is_valid()) {
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return conn;
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}
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conn = Ref<StreamPeerTCP>(memnew(StreamPeerTCP));
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conn->accept_socket(ns, ip, port);
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return conn;
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}
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void TCPServer::stop() {
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if (_sock.is_valid()) {
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_sock->close();
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}
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}
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TCPServer::TCPServer() :
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_sock(Ref<NetSocket>(NetSocket::create())) {
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}
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TCPServer::~TCPServer() {
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stop();
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}
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