Visual Servoing Platform  version 3.2.0 under development (2019-01-22)
vpUDPServer.h
1 /****************************************************************************
2  *
3  * ViSP, open source Visual Servoing Platform software.
4  * Copyright (C) 2005 - 2019 by Inria. All rights reserved.
5  *
6  * This software is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  * See the file LICENSE.txt at the root directory of this source
11  * distribution for additional information about the GNU GPL.
12  *
13  * For using ViSP with software that can not be combined with the GNU
14  * GPL, please contact Inria about acquiring a ViSP Professional
15  * Edition License.
16  *
17  * See http://visp.inria.fr for more information.
18  *
19  * This software was developed at:
20  * Inria Rennes - Bretagne Atlantique
21  * Campus Universitaire de Beaulieu
22  * 35042 Rennes Cedex
23  * France
24  *
25  * If you have questions regarding the use of this file, please contact
26  * Inria at visp@inria.fr
27  *
28  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
29  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
30  *
31  * Description:
32  * UDP Server
33  *
34  *****************************************************************************/
35 
36 #ifndef _vpUDPServer_h_
37 #define _vpUDPServer_h_
38 
39 #include <visp3/core/vpConfig.h>
40 
41 // inet_ntop() not supported on win XP
42 #ifdef VISP_HAVE_FUNC_INET_NTOP
43 
44 #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))) // UNIX
45 # include <netinet/in.h>
46 # include <sys/socket.h>
47 # include <sys/types.h>
48 #else
49 # include <winsock2.h>
50 #endif
51 
52 #include <visp3/core/vpException.h>
53 
54 #define VP_MAX_UDP_PAYLOAD 508
55 
197 class VISP_EXPORT vpUDPServer
198 {
199 public:
200  vpUDPServer(const int port);
201  vpUDPServer(const std::string &hostname, const int port);
202  virtual ~vpUDPServer();
203 
204  int receive(std::string &msg, const int timeoutMs = 0);
205  int receive(std::string &msg, std::string &hostInfo, const int timeoutMs = 0);
206  int send(const std::string &msg, const std::string &hostname, const int port);
207 
208 private:
209  char m_buf[VP_MAX_UDP_PAYLOAD];
210  struct sockaddr_in m_clientAddress;
211  int m_clientLength;
212  struct sockaddr_in m_serverAddress;
213 #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))) // UNIX
214  int m_socketFileDescriptor;
215 #else
216  SOCKET m_socketFileDescriptor;
217  WSADATA m_wsa;
218 #endif
219 
220  void init(const std::string &hostname, const int port);
221 };
222 
223 #endif
224 #endif
This class implements a basic (IPv4) User Datagram Protocol (UDP) server.
Definition: vpUDPServer.h:197