godot/platform/windows/tcp_server_winsock.cpp

177 lines
4.8 KiB
C++

/*************************************************************************/
/* tcp_server_winsock.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 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);
int reuse=1;
if(setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) < 0) {
printf("REUSEADDR failed!");
}
if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof my_addr) != SOCKET_ERROR) {
if (::listen(sockfd, SOMAXCONN) == SOCKET_ERROR) {
closesocket(sockfd);
ERR_FAIL_V(FAILED);
};
}
else {
return ERR_ALREADY_IN_USE;
};
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();
};