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author | Matthias (think) <matthias@mpb.li> | 2012-07-11 11:49:12 +0200 |
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committer | Matthias (think) <matthias@mpb.li> | 2012-07-11 11:49:12 +0200 |
commit | bbab73a63b8c7b50e8a8cb228999d45024fad984 (patch) | |
tree | 81a822aa9bd33cae8a5fb8ade4faa83b652316d9 /src/UdpSocket.h | |
download | dabmux-bbab73a63b8c7b50e8a8cb228999d45024fad984.tar.gz dabmux-bbab73a63b8c7b50e8a8cb228999d45024fad984.tar.bz2 dabmux-bbab73a63b8c7b50e8a8cb228999d45024fad984.zip |
added unmodified mmbtools
Diffstat (limited to 'src/UdpSocket.h')
-rw-r--r-- | src/UdpSocket.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/UdpSocket.h b/src/UdpSocket.h new file mode 100644 index 0000000..a500606 --- /dev/null +++ b/src/UdpSocket.h @@ -0,0 +1,126 @@ +/* + Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Her Majesty the + Queen in Right of Canada (Communications Research Center Canada) + */ +/* + This file is part of CRC-DabMux. + + CRC-DabMux is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as + published by the Free Software Foundation, either version 3 of the + License, or (at your option) any later version. + + CRC-DabMux is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with CRC-DabMux. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _UDPSOCKET +#define _UDPSOCKET + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "InetAddress.h" +#ifdef _WIN32 +# include <winsock.h> +# define socklen_t int +# define reuseopt_t char +#else +# include <sys/socket.h> +# include <netinet/in.h> +# include <unistd.h> +# include <netdb.h> +# include <arpa/inet.h> +# include <pthread.h> +# define SOCKET int +# define INVALID_SOCKET -1 +# define SOCKET_ERROR -1 +# define reuseopt_t int +#endif +//#define INVALID_PORT -1 + +#include <stdlib.h> +#include <iostream> +class UdpPacket; + + +/** + * This class represents a socket for sending and receiving UDP packets. + * + * A UDP socket is the sending or receiving point for a packet delivery service. + * Each packet sent or received on a datagram socket is individually + * addressed and routed. Multiple packets sent from one machine to another may + * be routed differently, and may arrive in any order. + * @author Pascal Charest pascal.charest@crc.ca + */ +class UdpSocket { + public: + UdpSocket(); + UdpSocket(int port, char *name = NULL); + ~UdpSocket(); + + static int init(); + static int clean(); + + int create(int port = 0, char *name = NULL); + + int send(UdpPacket &packet); + int receive(UdpPacket &packet); + int joinGroup(char* groupname); + /** + * Connects the socket on a specific address. Only data from this address + * will be received. + * @param addr The address to connect the socket + * @warning Not implemented yet. + */ + void connect(InetAddress &addr); + int setBlocking(bool block); + + protected: + /// The address on which the socket is binded. + InetAddress address; + /// The low-level socket used by system functions. + SOCKET listenSocket; +}; + +/** + * This class represents a UDP packet. + * + * UDP packets are used to implement a connectionless packet delivery service. + * Each message is routed from one machine to another based solely on + * information contained within that packet. Multiple packets sent from one + * machine to another might be routed differently, and might arrive in any order. + * @author Pascal Charest pascal.charest@crc.ca + */ +class UdpPacket { + public: + UdpPacket(unsigned int initSize = 1024); + // Not implemented + UdpPacket(const UdpPacket& packet); + ~UdpPacket(); + + char *getData(); + void addData(void *data, unsigned size); + unsigned long getLength(); + unsigned long getSize(); + unsigned long getOffset(); + void setLength(unsigned long len); + void setOffset(unsigned long val); + void setSize(unsigned newSize); + InetAddress &getAddress(); + // Not implemented + const UdpPacket &operator=(const UdpPacket&); + + private: + char *dataBuf; + unsigned long length, size, offset; + InetAddress address; +}; + +#endif // _UDPSOCKET |