    // ------------------------------- //
    // -------- Start of File -------- //
    // ------------------------------- //
    // ----------------------------------------------------------- //
    // C++ Source Code File Name: testprog.cpp
    // C++ Compiler Used: MSVC, BCC32, GCC, HPUX aCC, SOLARIS CC
    // Produced By: glNET Software
    // File Creation Date: 09/20/1999
    // Date Last Modified: 05/25/2001
    // Copyright (c) 2001 glNET Software
    // ----------------------------------------------------------- //
    // ------------- Program Description and Details ------------- //
    // ----------------------------------------------------------- //
    /*
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
    USA

    This is a test program for the device cache classes.
    */
    // ----------------------------------------------------------- //
    #include "gxsfile.h"

    #ifdef __MSVC_DEBUG__
    #include "leaktest.h"
    #endif

    void ClearInputStream(istream &s)
    {
      char c;
      s.clear();
      while(s.get(c) && c != '\n') { ; }
    }

    void InputString(char *mesg, MemoryBuffer &s)
    {
      cout << mesg << ": ";
      char buf[255];
      for(int i = 0; i < 255; i++) buf[i] = 0;
      cin >> buf;
      s.Load(buf, (strlen(buf) + 1));
      s[s.length()] += '\0'; // Null terminate the string
    }

    void InputInt(char *mesg, int &i)
    {
      cout << mesg << ": ";
      cin >> i;
      ClearInputStream(cin);
    }

    void Menu()
    {
      cout << endl;
      cout << "(?)   Display this menu" << endl;
      cout << "(D)   Copy a disk file to a Datagram Socket" << endl;
      cout << "(F)   Copy a disk file to another disk file" << endl;
      cout << "(P)   Copy a disk file to a Serial port" << endl;
      cout << "(Q)   Quit this program" << endl;
      cout << "(S)   Copy a disk file to a Stream Socket" << endl;
      cout << endl;
    }

    void CopyFileToSerialPort(gxsFile *dev)
    {
      MemoryBuffer in, port;
      InputString("Enter the name of the serial device", port);
      InputString("Enter the name of file to copy", in);

      if(!dev->OpenInputFile(in)) {
        cout << "Cannot open the specified file!" << endl;
        return;
      }

      unsigned byte_count = 0;
      gxSerialCommServer client;

      int rv = client.InitCommServer(port);
      if(rv != gxSerialComm::scomm_NO_ERROR) {
        cout << client.SerialCommExceptionMessage() << endl;
        return;
      }

      if(!dev->CopyFileToSerialPort(&client, byte_count)) {
        cout << "Error copying file." << endl;
        return;
      }

      cout << "Number of cache buckets in use = " << dev->BucketsInUse() << endl;
      cout << "Flushing the device cache..." << endl;
      dev->Flush();
      dev->CloseInputFile();

      // Shutdown the server
      client.TerminateConnection();

      cout << "Finished processing file." << endl;
      cout << "Byte count = " << byte_count << endl;
    }

    void CopyFileToStreamSocket(gxsFile *dev)
    {
      gxStream client;
      int port;
      MemoryBuffer in, host;

      InputString("Enter the name of the server", host);
      InputInt("Enter the server's port number", port);
      InputString("Enter the name of file to copy", in);

      if(!dev->OpenInputFile(in)) {
        cout << "Cannot open the specified file!" << endl;
        return;
      }

      unsigned byte_count = 0;

      if(client.StreamClient(port, host) != 0) {
        cout << client.SocketExceptionMessage() << endl;
        client.Close();
        return;
      }

      if(!dev->CopyFileToStreamSocket(&client, byte_count)) {
        cout << "Error copying file." << endl;
        return;
      }

      cout << "Number of cache buckets in use = " << dev->BucketsInUse() << endl;
      cout << "Flushing the device cache..." << endl;
      dev->Flush();
      dev->CloseInputFile();

      // Shutdown the server
      client.TerminateConnection();

      cout << "Finished processing file." << endl;
      cout << "Byte count = " << byte_count << endl;
    }

    void CopyFileToFile(gxsFile *dev)
    {
      MemoryBuffer in, out;

      InputString("Enter the name of the input file", in);

      if(!dev->OpenInputFile(in)) {
        cout << "Cannot open the specified file!" << endl;
        return;
      }

      InputString("Enter the name of the output file", out);

      if(!dev->OpenOutputFile(out)) {
        cout << "Cannot open the specified file!" << endl;
        return;
      }

      unsigned byte_count = 0;

      if(!dev->CopyFileToFile(byte_count)) {
        cout << "Error copying file." << endl;
        return;
      }

      cout << "Number of cache buckets in use = " << dev->BucketsInUse() << endl;
      cout << "Flushing the device cache..." << endl;
      dev->Flush();
      dev->CloseInputFile(); dev->CloseOutputFile();
      cout << "Finished processing file." << endl;
      cout << "Byte count = " << byte_count << endl;
    }

    void CopyFileToDatagramSocket(gxsFile *dev)
    {
      gxDatagram client;
      int port;
      MemoryBuffer in, host;

      InputString("Enter the name of the server", host);
      InputInt("Enter the server's port number", port);
      InputString("Enter the name of file to copy", in);

      if(!dev->OpenInputFile(in)) {
        cout << "Cannot open the specified file!" << endl;
        return;
      }

      unsigned byte_count = 0;

      if(client.DatagramClient(port, host) != 0) {
        cout << client.SocketExceptionMessage() << endl;
        client.Close();
        return;
      }

      if(!dev->CopyFileToDatagramSocket(&client, byte_count)) {
        cout << "Error copying file." << endl;
        return;
      }

      cout << "Number of cache buckets in use = " << dev->BucketsInUse() << endl;
      cout << "Flushing the device cache..." << endl;
      dev->Flush();
      dev->CloseInputFile();

      // Shutdown the server
      client.TerminateConnection();

      cout << "Finished processing file." << endl;
      cout << "Byte count = " << byte_count << endl;
    }

    void SetupClient(int client_type)
    {
      int cache_size = 10;
      gxsFile dev(cache_size); // Device cache used to process a file

      cout << "Creating a device cache using " << cache_size
           << " cache buckets." << endl;
      cout << "Reserving " << (sizeof(gxDeviceBucket) * cache_size)
           << " bytes of memory." << endl;
      cout << "Number of cache buckets in use = " << dev.BucketsInUse() << endl;
      cout << endl;

      switch(client_type) {
        case gxSOCKET_STREAM_CLIENT:
          CopyFileToStreamSocket(&dev);
          Menu();
          break;

        case gxSOCKET_DATAGRAM_CLIENT:
          CopyFileToDatagramSocket(&dev);
          Menu();
          break;

        case gxSOCKET_SERIAL_PORT_CLIENT:
          CopyFileToSerialPort(&dev);
          Menu();
          break;

        case gxSOCKET_LOCAL_FILE_SYSTEM:
          CopyFileToFile(&dev);
          Menu();
          break;

        default:
          break;
      }
    }

    int main()
    {
    #ifdef __MSVC_DEBUG__
      InitLeakTest();
    #endif

      Menu();

      char key;
      int rv = 1;
      while(rv) {
        if (!cin) {
          ClearInputStream(cin);
          if (!cin) {
    	cout << "Input stream error" << endl;
    	return 0;
          }
        }
        cout << endl;
        cout << '>';
        cin >> key;

        if (!cin) continue;
        switch(key) {
          case 'd' : case 'D' :
    	ClearInputStream(cin);
    	SetupClient(gxSOCKET_DATAGRAM_CLIENT);
    	break;

          case 'f' : case 'F' :
    	ClearInputStream(cin);
    	SetupClient(gxSOCKET_LOCAL_FILE_SYSTEM);
    	break;

          case 'p' : case 'P' :
    	ClearInputStream(cin);
    	SetupClient(gxSOCKET_SERIAL_PORT_CLIENT);
    	break;

          case 's' : case 'S' :
    	ClearInputStream(cin);
    	SetupClient(gxSOCKET_STREAM_CLIENT);
    	break;

          case 'q' : case 'Q' :
    	rv = 0;
    	break;

          case '?' :
    	Menu();
    	break;

          default:
            cout << "Unrecognized command" << endl;
    	cout << endl;
        }
      }
      return 0;
    }
    // ----------------------------------------------------------- //
    // ------------------------------- //
    // --------- End of File --------- //
    // ------------------------------- //