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Connection.h

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/*
Copyright (c) 2000-2003, Jelle Kok, University of Amsterdam
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.

3. Neither the name of the University of Amsterdam nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _CONNECTION_
#define _CONNECTION_

#include <stdio.h>     // printf, FILE
#include <iostream>    // ostream
#ifdef WIN32
  #include <windows.h>   // sockaddr_in
#else
  #include <netdb.h>     // sockaddr_in
  #include <arpa/inet.h> // sockaddr_in
#endif

using namespace std;

typedef struct _socket{
    int    socketfd  ;                
    struct sockaddr_in  serv_addr ;   
} Socket ;

/********************** CONNECTION *******************************************/

class Connection {

  Socket         m_sock;        
  int            m_iMaxMsgSize; 
public:

  // constructors
  Connection            (                                               );
  Connection            ( const char *hostname, int  port,   int iSize  );
  ~Connection           (                                               );

  // methods that deal with the connection itself
  bool connect          ( const char *host,     int  port               );
  void disconnect       ( void                                          );
  bool isConnected      ( void                                          )const;

  // methods that deal with the communication over the connection
#ifndef WIN32
  int  message_loop     ( FILE       *in,       FILE *out               );
#endif
  int  receiveMessage   ( char       *msg,      int  maxsize            );
  bool sendMessage      ( const char *msg                               );

  void show             ( ostream    os                                 );

};

#endif

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