GODOT IS OPEN SOURCE

platform/windows/tcp_server_winsock.cpp

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+/*************************************************************************/
+/*  tcp_server_winsock.cpp                                               */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* 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_winsock.h"
+
+#include "stream_peer_winsock.h"
+
+#include <winsock2.h>
+
+extern int winsock_refcount;
+
+TCP_Server* TCPServerWinsock::_create() {
+
+	return memnew(TCPServerWinsock);
+};
+
+void TCPServerWinsock::make_default() {
+
+	TCP_Server::_create = TCPServerWinsock::_create;
+
+	if (winsock_refcount == 0) {
+		WSADATA data;
+		WSAStartup(MAKEWORD(2,2), &data);
+	};
+	++winsock_refcount;
+};
+
+void TCPServerWinsock::cleanup() {
+
+	--winsock_refcount;
+	if (winsock_refcount == 0) {
+
+		WSACleanup();
+	};
+};
+
+
+Error TCPServerWinsock::listen(uint16_t p_port,const List<String> *p_accepted_hosts) {
+
+	int sockfd;
+	sockfd = socket(AF_INET, SOCK_STREAM, 0);
+	ERR_FAIL_COND_V(sockfd == INVALID_SOCKET, FAILED);
+
+	unsigned long par = 1;
+	if (ioctlsocket(sockfd, FIONBIO, &par)) {
+		perror("setting non-block mode");
+		stop();
+		return FAILED;
+	};
+
+	struct sockaddr_in my_addr;
+	my_addr.sin_family = AF_INET;         // host byte order
+	my_addr.sin_port = htons(p_port);     // short, network byte order
+	my_addr.sin_addr.s_addr = INADDR_ANY; // automatically fill with my IP TODO: use p_accepted_hosts
+	memset(my_addr.sin_zero, '\0', sizeof my_addr.sin_zero);
+
+	if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof my_addr) != SOCKET_ERROR) {
+
+		if (::listen(sockfd, SOMAXCONN) == SOCKET_ERROR) {
+
+			closesocket(sockfd);
+			ERR_FAIL_V(FAILED);
+		};
+	};
+
+	if (listen_sockfd != INVALID_SOCKET) {
+
+		stop();
+	};
+
+	listen_sockfd = sockfd;
+
+	return OK;
+};
+
+bool TCPServerWinsock::is_connection_available() const {
+
+	if (listen_sockfd == -1) {
+		return false;
+	};
+
+	timeval timeout;
+	timeout.tv_sec = 0;
+	timeout.tv_usec = 0;
+
+	fd_set pfd;
+	FD_ZERO(&pfd);
+	FD_SET(listen_sockfd, &pfd);
+
+	int ret = select(listen_sockfd + 1, &pfd, NULL, NULL, &timeout);
+	ERR_FAIL_COND_V(ret < 0, 0);
+
+	if (ret && (FD_ISSET(listen_sockfd, &pfd))) {
+
+		return true;
+	};
+
+	return false;
+};
+
+
+Ref<StreamPeerTCP> TCPServerWinsock::take_connection() {
+
+	if (!is_connection_available()) {
+		return NULL;
+	};
+
+	struct sockaddr_in their_addr;
+	int sin_size = sizeof(their_addr);
+	int fd = accept(listen_sockfd, (struct sockaddr *)&their_addr, &sin_size);
+	ERR_FAIL_COND_V(fd == INVALID_SOCKET, NULL);
+
+	Ref<StreamPeerWinsock> conn = memnew(StreamPeerWinsock);
+	IP_Address ip;
+	ip.host = (uint32_t)their_addr.sin_addr.s_addr;
+
+	conn->set_socket(fd, ip, ntohs(their_addr.sin_port));
+
+	return conn;
+};
+
+void TCPServerWinsock::stop() {
+
+	if (listen_sockfd != INVALID_SOCKET) {
+		closesocket(listen_sockfd);
+	};
+
+	listen_sockfd = -1;
+};
+
+
+TCPServerWinsock::TCPServerWinsock() {
+
+	listen_sockfd = INVALID_SOCKET;
+};
+
+TCPServerWinsock::~TCPServerWinsock() {
+
+	stop();
+};
+