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DirectEventReceivingStrategy.h
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1 /* ============================================================
2  *
3  * This file is part of the RSB project
4  *
5  * Copyright (C) 2011 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 <list>
30 #include <set>
31 #include <iostream>
32 
33 #include <boost/thread/shared_mutex.hpp>
34 
35 #include <rsc/runtime/Properties.h>
36 #include <rsc/logging/Logger.h>
37 
38 #include "../Event.h"
39 #include "../ParticipantConfig.h"
40 
42 
43 #include "rsb/rsbexports.h"
44 
45 namespace rsb {
46 namespace eventprocessing {
47 
62 public:
63  static EventReceivingStrategy* create(const rsc::runtime::Properties& props);
64 
65  DirectEventReceivingStrategy(bool singleThreaded = false);
66 
68 
69  void printContents(std::ostream& stream) const;
70 
71  void setHandlerErrorStrategy(const ParticipantConfig::ErrorStrategy& strategy);
72 
73  // Qualification of HandlerPtr is required since there is another
74  // HandlerPtr type in eventprocessing.
75  virtual void addHandler(rsb::HandlerPtr handler, const bool& wait);
76  virtual void removeHandler(rsb::HandlerPtr handler, const bool& wait);
77 
78  virtual void addFilter(filter::FilterPtr filter);
79  virtual void removeFilter(filter::FilterPtr filter);
80 
81  void handle(EventPtr e);
82 
83 private:
84  typedef std::list<rsb::HandlerPtr> HandlerList;
85 
86  // Qualification of HandlerPtr is required since there is another
87  // HandlerPtr type in eventprocessing.
88  bool filter(EventPtr event);
89  void deliver(rsb::HandlerPtr handler, EventPtr event);
90 
91  void handleDispatchError(const std::string& message);
92 
93  bool filterNoLock(EventPtr e);
94 
95  void handleNoLock(EventPtr e);
96 
97  rsc::logging::LoggerPtr logger;
98 
99  mutable boost::shared_mutex filtersMutex;
100  std::set<filter::FilterPtr> filters;
101 
102  mutable boost::shared_mutex errorStrategyMutex;
104 
105  mutable boost::shared_mutex handlerMutex;
107 
109 };
110 
111 }
112 }