include/wx/unix/app.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/unix/app.h
   3 // Purpose:     wxAppConsole implementation for Unix
   4 // Author:      Lukasz Michalski
   5 // Created:     28/01/2005
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Lukasz Michalski
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 //Ensure that sigset_t is being defined
  12 #include <signal.h>
  13
  14 // wxApp subclass implementing event processing for console applications
  15 class WXDLLIMPEXP_BASE wxAppConsole : public wxAppConsoleBase
  16 {
  17 public:
  18     // override base class initialization
  19     virtual bool Initialize(int& argc, wxChar** argv);
  20
  21
  22     // Unix-specific: Unix signal handling
  23     // -----------------------------------
  24
  25     // type of the function which can be registered as signal handler: notice
  26     // that it isn't really a signal handler, i.e. it's not subject to the
  27     // usual signal handlers constraints, because it is called later from
  28     // CheckSignal() and not when the signal really occurs
  29     typedef void (*SignalHandler)(int);
  30
  31     // Set signal handler for the given signal, SIG_DFL or SIG_IGN can be used
  32     // instead of a function pointer
  33     //
  34     // Return true if handler was installed, false on error
  35     bool SetSignalHandler(int signal, SignalHandler handler);
  36
  37     // Check if any Unix signals arrived since the last call and execute
  38     // handlers for them
  39     void CheckSignal();
  40
  41 private:
  42     // signal handler set up by SetSignalHandler() for all signals we handle,
  43     // it just adds the signal to m_signalsCaught -- the real processing is
  44     // done later, when CheckSignal() is called
  45     static void HandleSignal(int signal);
  46
  47
  48     // signals for which HandleSignal() had been called (reset from
  49     // CheckSignal())
  50     sigset_t m_signalsCaught;
  51
  52     // the signal handlers
  53     WX_DECLARE_HASH_MAP(int, SignalHandler, wxIntegerHash, wxIntegerEqual, SignalHandlerHash);
  54     SignalHandlerHash m_signalHandlerHash;
  55
  56     friend class GSocketGUIFunctionsTableBase;
  57 };