eventsink.h
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1 /*
2  * Copyright (C) 2006-2007 Laurentiu-Gheorghe Crisan
3  * Copyright (C) 2006-2008 Marc Boris Duerner
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * As a special exception, you may use this file as part of a free
11  * software library without restriction. Specifically, if other files
12  * instantiate templates or use macros or inline functions from this
13  * file, or you compile this file and link it with other files to
14  * produce an executable, this file does not by itself cause the
15  * resulting executable to be covered by the GNU General Public
16  * License. This exception does not however invalidate any other
17  * reasons why the executable file might be covered by the GNU Library
18  * General Public License.
19  *
20  * This library is distributed in the hope that it will be useful,
21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23  * Lesser General Public License for more details.
24  *
25  * You should have received a copy of the GNU Lesser General Public
26  * License along with this library; if not, write to the Free Software
27  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28  */
29 #ifndef CXXTOOLS_EVENTSINK_H
30 #define CXXTOOLS_EVENTSINK_H
31 
32 #include <cxxtools/event.h>
33 #include <cxxtools/api.h>
34 #include <cxxtools/mutex.h>
35 #include <list>
36 
37 namespace cxxtools {
38 
39  class EventSource;
40 
42  {
43  friend class EventSource;
44 
45  public:
46  EventSink();
47 
48  virtual ~EventSink();
49 
50  void commitEvent(const Event& event);
51 
52  protected:
53  virtual void onCommitEvent(const Event& event) = 0;
54 
55  private:
56  void onConnect(EventSource& source);
57  void onDisconnect(EventSource& source);
58  void onUnsubscribe(EventSource& source);
59 
60  private:
61  mutable RecursiveMutex _mutex;
62  std::list<EventSource*> _sources;
63  };
64 
65 } // namespace cxxtools
66 
67 #endif