1 files changed, 371 insertions, 0 deletions
diff --git a/drivers/windows/stream_peer_tcp_winsock.cpp b/drivers/windows/stream_peer_tcp_winsock.cpp
new file mode 100644
index 0000000000..f4cd38079d
--- /dev/null
+++ b/drivers/windows/stream_peer_tcp_winsock.cpp
@@ -0,0 +1,371 @@
+/*************************************************************************/
+/*  stream_peer_tcp_winsock.cpp                                          */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* 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.                */
+/*************************************************************************/
+#ifdef WINDOWS_ENABLED
+
+#include "stream_peer_tcp_winsock.h"
+
+#include <winsock2.h>
+#include <ws2tcpip.h>
+
+#include "drivers/unix/socket_helpers.h"
+
+int winsock_refcount = 0;
+
+StreamPeerTCP *StreamPeerTCPWinsock::_create() {
+
+	return memnew(StreamPeerTCPWinsock);
+};
+
+void StreamPeerTCPWinsock::make_default() {
+
+	StreamPeerTCP::_create = StreamPeerTCPWinsock::_create;
+
+	if (winsock_refcount == 0) {
+		WSADATA data;
+		WSAStartup(MAKEWORD(2, 2), &data);
+	};
+	++winsock_refcount;
+};
+
+void StreamPeerTCPWinsock::cleanup() {
+
+	--winsock_refcount;
+	if (winsock_refcount == 0) {
+
+		WSACleanup();
+	};
+};
+
+Error StreamPeerTCPWinsock::_block(int p_sockfd, bool p_read, bool p_write) const {
+
+	fd_set read, write;
+	FD_ZERO(&read);
+	FD_ZERO(&write);
+
+	if (p_read)
+		FD_SET(p_sockfd, &read);
+	if (p_write)
+		FD_SET(p_sockfd, &write);
+
+	int ret = select(p_sockfd + 1, &read, &write, NULL, NULL); // block forever
+	return ret < 0 ? FAILED : OK;
+};
+
+Error StreamPeerTCPWinsock::_poll_connection() const {
+
+	ERR_FAIL_COND_V(status != STATUS_CONNECTING || sockfd == INVALID_SOCKET, FAILED);
+
+	struct sockaddr_storage their_addr;
+	size_t addr_size = _set_sockaddr(&their_addr, peer_host, peer_port, sock_type);
+
+	if (::connect(sockfd, (struct sockaddr *)&their_addr, addr_size) == SOCKET_ERROR) {
+
+		int err = WSAGetLastError();
+		if (err == WSAEISCONN) {
+			status = STATUS_CONNECTED;
+			return OK;
+		};
+
+		if (err == WSAEINPROGRESS || err == WSAEALREADY) {
+			return OK;
+		}
+
+		status = STATUS_ERROR;
+		return ERR_CONNECTION_ERROR;
+	} else {
+
+		status = STATUS_CONNECTED;
+		return OK;
+	};
+
+	return OK;
+};
+
+Error StreamPeerTCPWinsock::write(const uint8_t *p_data, int p_bytes, int &r_sent, bool p_block) {
+
+	if (status == STATUS_NONE || status == STATUS_ERROR) {
+
+		return FAILED;
+	};
+
+	if (status != STATUS_CONNECTED) {
+
+		if (_poll_connection() != OK) {
+
+			return FAILED;
+		};
+
+		if (status != STATUS_CONNECTED) {
+			r_sent = 0;
+			return OK;
+		};
+	};
+
+	int data_to_send = p_bytes;
+	const uint8_t *offset = p_data;
+	if (sockfd == -1) return FAILED;
+	int total_sent = 0;
+
+	while (data_to_send) {
+
+		int sent_amount = send(sockfd, (const char *)offset, data_to_send, 0);
+
+		if (sent_amount == -1) {
+
+			if (WSAGetLastError() != WSAEWOULDBLOCK) {
+
+				perror("Nothing sent");
+				disconnect_from_host();
+				ERR_PRINT("Server disconnected!\n");
+				return FAILED;
+			};
+
+			if (!p_block) {
+				r_sent = total_sent;
+				return OK;
+			};
+
+			_block(sockfd, false, true);
+		} else {
+
+			data_to_send -= sent_amount;
+			offset += sent_amount;
+			total_sent += sent_amount;
+		};
+	}
+
+	r_sent = total_sent;
+
+	return OK;
+};
+
+Error StreamPeerTCPWinsock::read(uint8_t *p_buffer, int p_bytes, int &r_received, bool p_block) {
+
+	if (!is_connected_to_host()) {
+
+		return FAILED;
+	};
+
+	if (status != STATUS_CONNECTED) {
+
+		if (_poll_connection() != OK) {
+
+			return FAILED;
+		};
+
+		if (status != STATUS_CONNECTED) {
+			r_received = 0;
+			return OK;
+		};
+	};
+
+	int to_read = p_bytes;
+	int total_read = 0;
+
+	while (to_read) {
+
+		int read = recv(sockfd, (char *)p_buffer + total_read, to_read, 0);
+
+		if (read == -1) {
+
+			if (WSAGetLastError() != WSAEWOULDBLOCK) {
+
+				perror("Nothing read");
+				disconnect_from_host();
+				ERR_PRINT("Server disconnected!\n");
+				return FAILED;
+			};
+
+			if (!p_block) {
+
+				r_received = total_read;
+				return OK;
+			};
+			_block(sockfd, true, false);
+		} else if (read == 0) {
+			disconnect_from_host();
+			return ERR_FILE_EOF;
+		} else {
+
+			to_read -= read;
+			total_read += read;
+		};
+	};
+
+	r_received = total_read;
+
+	return OK;
+};
+
+Error StreamPeerTCPWinsock::put_data(const uint8_t *p_data, int p_bytes) {
+
+	int total;
+	return write(p_data, p_bytes, total, true);
+};
+
+Error StreamPeerTCPWinsock::put_partial_data(const uint8_t *p_data, int p_bytes, int &r_sent) {
+
+	return write(p_data, p_bytes, r_sent, false);
+};
+
+Error StreamPeerTCPWinsock::get_data(uint8_t *p_buffer, int p_bytes) {
+
+	int total;
+	return read(p_buffer, p_bytes, total, true);
+};
+
+Error StreamPeerTCPWinsock::get_partial_data(uint8_t *p_buffer, int p_bytes, int &r_received) {
+
+	return read(p_buffer, p_bytes, r_received, false);
+};
+
+StreamPeerTCP::Status StreamPeerTCPWinsock::get_status() const {
+
+	if (status == STATUS_CONNECTING) {
+		_poll_connection();
+	};
+
+	return status;
+};
+
+bool StreamPeerTCPWinsock::is_connected_to_host() const {
+
+	if (status == STATUS_NONE || status == STATUS_ERROR) {
+
+		return false;
+	};
+	if (status != STATUS_CONNECTED) {
+		return true;
+	};
+
+	return (sockfd != INVALID_SOCKET);
+};
+
+void StreamPeerTCPWinsock::disconnect_from_host() {
+
+	if (sockfd != INVALID_SOCKET)
+		closesocket(sockfd);
+	sockfd = INVALID_SOCKET;
+	sock_type = IP::TYPE_NONE;
+
+	status = STATUS_NONE;
+
+	peer_host = IP_Address();
+	peer_port = 0;
+};
+
+void StreamPeerTCPWinsock::set_socket(int p_sockfd, IP_Address p_host, int p_port, IP::Type p_sock_type) {
+
+	sockfd = p_sockfd;
+	sock_type = p_sock_type;
+	status = STATUS_CONNECTING;
+	peer_host = p_host;
+	peer_port = p_port;
+};
+
+Error StreamPeerTCPWinsock::connect_to_host(const IP_Address &p_host, uint16_t p_port) {
+
+	ERR_FAIL_COND_V(!p_host.is_valid(), ERR_INVALID_PARAMETER);
+
+	sock_type = p_host.is_ipv4() ? IP::TYPE_IPV4 : IP::TYPE_IPV6;
+	sockfd = _socket_create(sock_type, SOCK_STREAM, IPPROTO_TCP);
+	if (sockfd == INVALID_SOCKET) {
+		ERR_PRINT("Socket creation failed!");
+		disconnect_from_host();
+		//perror("socket");
+		return FAILED;
+	};
+
+	unsigned long par = 1;
+	if (ioctlsocket(sockfd, FIONBIO, &par)) {
+		perror("setting non-block mode");
+		disconnect_from_host();
+		return FAILED;
+	};
+
+	struct sockaddr_storage their_addr;
+	size_t addr_size = _set_sockaddr(&their_addr, p_host, p_port, sock_type);
+
+	if (::connect(sockfd, (struct sockaddr *)&their_addr, addr_size) == SOCKET_ERROR) {
+
+		if (WSAGetLastError() != WSAEWOULDBLOCK) {
+			ERR_PRINT("Connection to remote host failed!");
+			disconnect_from_host();
+			return FAILED;
+		};
+		status = STATUS_CONNECTING;
+	} else {
+		status = STATUS_CONNECTED;
+	};
+
+	peer_host = p_host;
+	peer_port = p_port;
+
+	return OK;
+};
+
+void StreamPeerTCPWinsock::set_nodelay(bool p_enabled) {
+	ERR_FAIL_COND(!is_connected_to_host());
+	int flag = p_enabled ? 1 : 0;
+	setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int));
+}
+
+int StreamPeerTCPWinsock::get_available_bytes() const {
+
+	unsigned long len;
+	int ret = ioctlsocket(sockfd, FIONREAD, &len);
+	ERR_FAIL_COND_V(ret == -1, 0)
+	return len;
+}
+
+IP_Address StreamPeerTCPWinsock::get_connected_host() const {
+
+	return peer_host;
+};
+
+uint16_t StreamPeerTCPWinsock::get_connected_port() const {
+
+	return peer_port;
+};
+
+StreamPeerTCPWinsock::StreamPeerTCPWinsock() {
+
+	sock_type = IP::TYPE_NONE;
+	sockfd = INVALID_SOCKET;
+	status = STATUS_NONE;
+	peer_port = 0;
+};
+
+StreamPeerTCPWinsock::~StreamPeerTCPWinsock() {
+
+	disconnect_from_host();
+};
+
+#endif