testClient.cpp

Example of a TCP client/server.

/****************************************************************************
 *
 * ViSP, open source Visual Servoing Platform software.
 * Copyright (C) 2005 - 2019 by Inria. All rights reserved.
 *
 * This software 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 2 of the License, or
 * (at your option) any later version.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Test for TCP client/Server.
 *
 * Authors:
 * Aurelien Yol
 *
 *****************************************************************************/

#include <iostream>
#include <visp3/core/vpClient.h>

int main()
{
// inet_ntop() used in vpClient is not supported on win XP
#ifdef VISP_HAVE_FUNC_INET_NTOP
  try {
    std::string servername = "localhost";
    unsigned int port = 35000;

    vpClient client;
    client.connectToHostname(servername, port);
    // client.connectToIP("127.0.0.1",port);

    int val = 0;

    while (1) {
      if (client.send(&val) != sizeof(int)) // Sending the new value to the first client
        std::cout << "Error while sending" << std::endl;
      else
        std::cout << "Sending : " << val << std::endl;

      if (client.receive(&val) != sizeof(int)) // Receiving a value from the first client
        std::cout << "Error while receiving" << std::endl;
      else
        std::cout << "Received : " << val << std::endl;
    }
    return 0;
  } catch (const vpException &e) {
    std::cout << "Catch an exception: " << e << std::endl;
    return 1;
  }
#else
  std::cout << "This test doesn't work on win XP where inet_ntop() is not available" << std::endl;
  return EXIT_SUCCESS;
#endif
}