GODOT IS OPEN SOURCE

1 files changed, 388 insertions, 0 deletions

diff --git a/drivers/unix/stream_peer_tcp_posix.cpp b/drivers/unix/stream_peer_tcp_posix.cpp
new file mode 100644
index 0000000000..8d937d9ca8
--- /dev/null
+++ b/drivers/unix/stream_peer_tcp_posix.cpp
@@ -0,0 +1,388 @@
+/*************************************************************************/
+/*  stream_peer_tcp_posix.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.                */
+/*************************************************************************/
+#ifdef UNIX_ENABLED
+
+#include "stream_peer_tcp_posix.h"
+
+#include <poll.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <netdb.h>
+#include <sys/types.h>
+#ifndef NO_FCNTL
+#include <sys/fcntl.h>
+#else
+#include <sys/ioctl.h>
+#endif
+#include <netinet/in.h>
+
+#include <sys/socket.h>
+#ifdef JAVASCRIPT_ENABLED
+#include <arpa/inet.h>
+#endif
+
+#include <netinet/tcp.h>
+
+#if defined(OSX_ENABLED) || defined(IPHONE_ENABLED)
+	#define MSG_NOSIGNAL    SO_NOSIGPIPE
+#endif
+
+static void set_addr_in(struct sockaddr_in& their_addr, const IP_Address& p_host, uint16_t p_port) {
+
+	their_addr.sin_family = AF_INET;    // host byte order
+	their_addr.sin_port = htons(p_port);  // short, network byte order
+	their_addr.sin_addr = *((struct in_addr*)&p_host.host);
+	memset(&(their_addr.sin_zero), '\0', 8);
+};
+
+StreamPeerTCP* StreamPeerTCPPosix::_create() {
+
+	return memnew(StreamPeerTCPPosix);
+};
+
+void StreamPeerTCPPosix::make_default() {
+
+	StreamPeerTCP::_create = StreamPeerTCPPosix::_create;
+};
+
+Error StreamPeerTCPPosix::_block(int p_sockfd, bool p_read, bool p_write) const {
+
+	struct pollfd pfd;
+	pfd.fd = p_sockfd;
+	pfd.events = 0;
+	if (p_read)
+		pfd.events |= POLLIN;
+	if (p_write)
+		pfd.events |= POLLOUT;
+	pfd.revents = 0;
+
+	int ret = poll(&pfd, 1, -1);
+	return ret < 0 ? FAILED : OK;
+};
+
+Error StreamPeerTCPPosix::_poll_connection(bool p_block) const {
+
+	ERR_FAIL_COND_V(status != STATUS_CONNECTING || sockfd == -1, FAILED);
+
+	if (p_block) {
+
+		_block(sockfd, false, true);
+	};
+
+	struct sockaddr_in their_addr;
+	set_addr_in(their_addr, peer_host, peer_port);
+	if (::connect(sockfd, (struct sockaddr *)&their_addr,sizeof(struct sockaddr)) == -1) {
+
+		if (errno == EISCONN) {
+			status = STATUS_CONNECTED;
+			return OK;
+		};
+
+		return OK;
+	} else {
+
+		status = STATUS_CONNECTED;
+		return OK;
+	};
+
+	return OK;
+};
+
+void StreamPeerTCPPosix::set_socket(int p_sockfd, IP_Address p_host, int p_port) {
+
+	sockfd = p_sockfd;
+#ifndef NO_FCNTL
+	fcntl(sockfd, F_SETFL, O_NONBLOCK);
+#else
+	int bval = 1;
+	ioctl(sockfd, FIONBIO, &bval);
+
+#endif
+	status = STATUS_CONNECTING;
+
+	peer_host = p_host;
+	peer_port = p_port;
+};
+
+Error StreamPeerTCPPosix::connect(const IP_Address& p_host, uint16_t p_port) {
+
+	ERR_FAIL_COND_V( p_host.host == 0, ERR_INVALID_PARAMETER);
+
+	if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
+		ERR_PRINT("Socket creation failed!");
+		disconnect();
+		//perror("socket");
+		return FAILED;
+	};
+
+#ifndef NO_FCNTL
+	fcntl(sockfd, F_SETFL, O_NONBLOCK);
+#else
+	int bval = 1;
+	ioctl(sockfd, FIONBIO, &bval);
+#endif
+
+	struct sockaddr_in their_addr;
+	set_addr_in(their_addr, p_host, p_port);
+
+	errno = 0;
+	if (::connect(sockfd, (struct sockaddr *)&their_addr,sizeof(struct sockaddr)) == -1 && errno != EINPROGRESS) {
+
+		ERR_PRINT("Connection to remote host failed!");
+		disconnect();
+		return FAILED;
+	};
+
+	if (errno == EINPROGRESS) {
+		status = STATUS_CONNECTING;
+	} else {
+		status = STATUS_CONNECTED;
+	};
+
+	peer_host = p_host;
+	peer_port = p_port;
+
+	return OK;
+};
+
+Error StreamPeerTCPPosix::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(p_block) != 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;
+	errno = 0;
+	int total_sent = 0;
+
+	while (data_to_send) {
+
+		int sent_amount = send(sockfd, offset, data_to_send, MSG_NOSIGNAL);
+		//printf("Sent TCP data of %d bytes, errno %d\n", sent_amount, errno);
+
+		if (sent_amount == -1) {
+
+			if (errno != EAGAIN) {
+
+				perror("shit?");
+				disconnect();
+				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 StreamPeerTCPPosix::read(uint8_t* p_buffer, int p_bytes,int &r_received, bool p_block) {
+
+	if (!is_connected()) {
+
+		return FAILED;
+	};
+
+	if (status == STATUS_CONNECTING) {
+
+		if (_poll_connection(p_block) != OK) {
+
+			return FAILED;
+		};
+
+		if (status != STATUS_CONNECTED) {
+			r_received = 0;
+			return OK;
+		};
+	};
+
+	int to_read = p_bytes;
+	int total_read = 0;
+	errno = 0;
+
+	while (to_read) {
+
+		int read = recv(sockfd, p_buffer + total_read, to_read, 0);
+
+		if (read == -1) {
+
+			if (errno != EAGAIN) {
+
+				perror("shit?");
+				disconnect();
+				ERR_PRINT("Server disconnected!\n");
+				return FAILED;
+			};
+
+			if (!p_block) {
+
+				r_received = total_read;
+				return OK;
+			};
+			_block(sockfd, true, false);
+
+		} else if (read==0) {
+
+			sockfd=-1;
+			status = STATUS_NONE;
+			peer_port = 0;
+			peer_host = IP_Address();
+			return ERR_FILE_EOF;
+
+		} else {
+
+			to_read -= read;
+			total_read += read;
+		};
+	};
+
+	r_received = total_read;
+
+	return OK;
+};
+
+void StreamPeerTCPPosix::set_nodelay(bool p_enabled) {
+
+	ERR_FAIL_COND(!is_connected());
+	int flag=p_enabled?1:0;
+	setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(int));
+}
+
+bool StreamPeerTCPPosix::is_connected() const {
+
+	if (status == STATUS_NONE || status == STATUS_ERROR) {
+
+		return false;
+	};
+	if (status != STATUS_CONNECTED) {
+		return true;
+	};
+
+	return (sockfd!=-1);
+};
+
+StreamPeerTCP::Status StreamPeerTCPPosix::get_status() const {
+
+	if (status == STATUS_CONNECTING) {
+		_poll_connection(false);
+	};
+
+	return status;
+};
+
+
+void StreamPeerTCPPosix::disconnect() {
+
+	if (sockfd != -1)
+		close(sockfd);
+	sockfd=-1;
+
+	status = STATUS_NONE;
+	peer_port = 0;
+	peer_host = IP_Address();
+};
+
+
+Error StreamPeerTCPPosix::put_data(const uint8_t* p_data,int p_bytes) {
+
+	int total;
+	return write(p_data, p_bytes, total, true);
+};
+
+Error StreamPeerTCPPosix::put_partial_data(const uint8_t* p_data,int p_bytes, int &r_sent) {
+
+	return write(p_data, p_bytes, r_sent, false);
+};
+
+Error StreamPeerTCPPosix::get_data(uint8_t* p_buffer, int p_bytes) {
+
+	int total;
+	return read(p_buffer, p_bytes, total, true);
+};
+
+Error StreamPeerTCPPosix::get_partial_data(uint8_t* p_buffer, int p_bytes,int &r_received) {
+
+	return read(p_buffer, p_bytes, r_received, false);
+};
+
+IP_Address StreamPeerTCPPosix::get_connected_host() const {
+
+	return peer_host;
+};
+
+uint16_t StreamPeerTCPPosix::get_connected_port() const {
+
+	return peer_port;
+};
+
+StreamPeerTCPPosix::StreamPeerTCPPosix() {
+
+	sockfd = -1;
+	status = STATUS_NONE;
+	peer_port = 0;
+};
+
+StreamPeerTCPPosix::~StreamPeerTCPPosix() {
+
+	disconnect();
+};
+
+#endif