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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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/base/Macro.h>
27 #include <ola/thread/Thread.h>
28 #include <map>
29 
30 namespace ola {
31 namespace thread {
32 
49  public:
51 
52  SignalThread();
53  ~SignalThread();
54 
55  // This has to be called before Start(). You can't add signal handlers once
56  // the thread is running.
57  bool InstallSignalHandler(int signal, SignalHandler *handler);
58 
59  protected:
60  void* Run();
61 
62  private:
63  typedef std::map<int, SignalHandler*> SignalMap;
64 
65  SignalMap m_signal_handlers;
66 
67  bool AddSignals(sigset_t *signals);
68  bool BlockSignal(int signal);
69 
70  DISALLOW_COPY_AND_ASSIGN(SignalThread);
71 };
72 } // namespace thread
73 } // namespace ola
74 #endif // INCLUDE_OLA_THREAD_SIGNALTHREAD_H_
Definition: SignalThread.h:48
Definition: Thread.h:52
bool InstallSignalHandler(int signal, SignalHandler *handler)
Install a signal handler for the given signal.
Definition: SignalThread.cpp:76
Helper macros.
The namespace containing all OLA symbols.
Definition: Credentials.cpp:44
void * Run()
Entry point into the thread.
Definition: SignalThread.cpp:87