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/** <pre>
* The Multi-Purpose Viewer
* Copyright (c) 2004 The Boeing Company
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*
* FILENAME: Network.h
* LANGUAGE: C++
* CLASS: UNCLASSIFIED
* PROJECT: Multi-Purpose Viewer
*
* PROGRAM DESCRIPTION:
* This class contains the data and methods necessary to
* handle the network interface.
*
* MODIFICATION NOTES:
* DATE NAME SCR NUMBER
* DESCRIPTION OF CHANGE........................
*
* 03/29/2004 Andrew Sampson MPV_CR_DR_1
* Initial Release.
*
* 07/10/2006 Greg Basler 1.7.2
* Corrected a problem with the code that cause a stray
* pointer due to the "JUST_IP_ADDRESSES" declaration.
* </pre>
* The Boeing Company
* 1.7.2
*/
#ifndef _MPV_NETWORK_INTERFACE_INCLUDED_
#define _MPV_NETWORK_INTERFACE_INCLUDED_
#ifdef WIN32
#include <winsock2.h>
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <netdb.h>
#endif
#ifdef WIN32
#define JUST_IP_ADDRESSES
#endif
//=========================================================
//! The class encapsulating the network interface.
//!
class Network
{
public:
//==> Management
//=========================================================
//! General Constructor
//!
Network();
//=========================================================
//! General Destructor
//!
~Network();
//==> Networking methods
//=========================================================
//! Opens a network communication socket
//! \param ip - The "to" internet address
//! \param port_send - The port on which the messages are being sent
//! \param port_rcv - the port on which messages are being received
//!
//! \return Success or Failure
//!
bool openSocket( const char * ip, const int port_send, const int port_rcv ) ;
//=========================================================
//! Opens a receive only network communication socket. Only
//! recv will work.
//! \param port_rcv - the port on which messages are being received
//!
//! \return Success or Failure
//!
bool openSocket(const int port_rcv ) ;
//=========================================================
//! Closes the socket
//!
void closeSocket() ;
//=========================================================
//! Sends a message
//! \param sendbuff - A pointer to the buffer containing the
//! message to be sent.
//! \param sendsize - The size of the message
//!
//! \return The number of bytes sent, or -1 on error.
//!
int send( unsigned char * sendbuff, int sendsize ) ;
//=========================================================
//! Receive a message
//! \param rcvbuff - A pointer to the buffer to place the
//! incoming message.
//! \param recvsize - The maximum size of the received message.
//!
//! \return The number of bytes recieved, or -1 on error.
//!
int recv( unsigned char * rcvbuff, int recvsize ) ;
private:
//=========================================================
//! Initializes the communication
//! \param ipaddr - The "to" internet address
//! \param sndport - The port on which the messages are being sent
//! \param rcvport - the port on which messages are being received
//!
void InitializeComm(const char *ipaddr, const int sndport, const int rcvport);
//=========================================================
//! Initializes incoming communication only
//! \param rcvport - the port on which messages are being received
//!
void InitializeComm(const int rcvport);
// Berkeley Sockets stuff
//=========================================================
//! The send socket
//!
int sndsock;
//=========================================================
//! The receive socket
//!
int rcvsock;
//=========================================================
//! The sending socket address
//!
#ifdef JUST_IP_ADDRESSES
struct sockaddr_in saddr;
#else
struct addrinfo *saddr;
#endif // JUST_IP_ADDRESSES
//=========================================================
//! The receiving socket address
//!
struct sockaddr_in raddr;
//=========================================================
//! The Valid flag
//!
bool valid;
};
#endif // _MPV_NETWORK_INTERFACE_INCLUDED_
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