Open Lighting Architecture
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
SignalThread.h
1 /*
2  * This library is free software; you can redistribute it and/or
3  * modify it under the terms of the GNU Lesser General Public
4  * License as published by the Free Software Foundation; either
5  * version 2.1 of the License, or (at your option) any later version.
6  *
7  * This library is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10  * Lesser General Public License for more details.
11  *
12  * You should have received a copy of the GNU Lesser General Public
13  * License along with this library; if not, write to the Free Software
14  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15  *
16  * SignalThread.h
17  * A thread to handle signals.
18  * Copyright (C) 2013 Simon Newton
19  */
20 
21 #ifndef INCLUDE_OLA_THREAD_SIGNALTHREAD_H_
22 #define INCLUDE_OLA_THREAD_SIGNALTHREAD_H_
23 
24 #include <signal.h>
25 #include <ola/Callback.h>
26 #include <ola/thread/Thread.h>
27 #include <map>
28 
29 namespace ola {
30 namespace thread {
31 
48  public:
50 
51  ~SignalThread();
52 
53  // This has to be called before Start(). You can't add signal handlers once
54  // the thread is running.
55  bool InstallSignalHandler(int signal, SignalHandler *handler);
56 
57  protected:
58  void* Run();
59 
60  private:
61  typedef std::map<int, SignalHandler*> SignalMap;
62 
63  SignalMap m_signal_handlers;
64 
65  bool AddSignals(sigset_t *signals);
66  bool BlockSignal(int signal);
67 };
68 } // namespace thread
69 } // namespace ola
70 #endif // INCLUDE_OLA_THREAD_SIGNALTHREAD_H_