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BusServer.h
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1 /* ============================================================
2  *
3  * This file is part of the RSB project
4  *
5  * Copyright (C) 2011, 2012 Jan Moringen <jmoringe@techfak.uni-bielefeld.de>
6  *
7  * This file may be licensed under the terms of the
8  * GNU Lesser General Public License Version 3 (the ``LGPL''),
9  * or (at your option) any later version.
10  *
11  * Software distributed under the License is distributed
12  * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
13  * express or implied. See the LGPL for the specific language
14  * governing rights and limitations.
15  *
16  * You should have received a copy of the LGPL along with this
17  * program. If not, go to http://www.gnu.org/licenses/lgpl.html
18  * or write to the Free Software Foundation, Inc.,
19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20  *
21  * The development of this software was supported by:
22  * CoR-Lab, Research Institute for Cognition and Robotics
23  * Bielefeld University
24  *
25  * ============================================================ */
26 
27 #pragma once
28 
29 #include <boost/cstdint.hpp>
30 
31 #include <boost/shared_ptr.hpp>
32 
33 #include <boost/asio.hpp>
34 #include <boost/asio/ip/tcp.hpp>
35 
36 #include <rsc/logging/Logger.h>
37 
38 #include "Bus.h"
39 
40 #include "rsb/rsbexports.h"
41 
42 namespace rsb {
43 namespace transport {
44 namespace socket {
45 
59 class RSB_EXPORT BusServer : public Bus {
60 public:
61  BusServer(boost::uint16_t port,
62  bool tcpnodelay,
63  boost::asio::io_service& service);
64 
65  virtual ~BusServer();
66 
73  void activate();
74 
75  void deactivate();
76 
77  void handleIncoming(EventPtr event,
78  BusConnectionPtr connection);
79 
80 private:
81  typedef boost::shared_ptr<boost::asio::ip::tcp::socket> SocketPtr;
82 
83  rsc::logging::LoggerPtr logger;
84 
85  boost::asio::ip::tcp::acceptor acceptor;
86  boost::asio::io_service& service;
87 
88  volatile bool active;
89  volatile bool shutdown;
90 
91  // These two member functions have the additional ref parameter to
92  // ensure that the BusServer object cannot be destroyed while
93  // callbacks are executed. This also means that
94  // BusServer::activate only when there is a shared_ptr owning the
95  // BusServer object. See BusServer::activate().
96  void acceptOne(boost::shared_ptr<BusServer> ref);
97 
98  void handleAccept(boost::shared_ptr<BusServer> ref,
99  SocketPtr socket,
100  const boost::system::error_code& error);
101 
102  void suicide();
103 };
104 
105 typedef boost::shared_ptr<BusServer> BusServerPtr;
106 
107 }
108 }
109 }