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