include/wx/unix/evtloop.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/unix/evtloop.h
   3 // Purpose:     declares wxEventLoop class
   4 // Author:      Lukasz Michalski (lm@zork.pl)
   5 // Created:     2007-05-07
   6 // Copyright:   (c) 2007 Lukasz Michalski
   7 // Licence:     wxWindows licence
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_UNIX_EVTLOOP_H_
  11 #define _WX_UNIX_EVTLOOP_H_
  12
  13 #if wxUSE_CONSOLE_EVENTLOOP
  14
  15 // ----------------------------------------------------------------------------
  16 // wxConsoleEventLoop
  17 // ----------------------------------------------------------------------------
  18
  19 class wxEventLoopSource;
  20 class wxFDIODispatcher;
  21 class wxWakeUpPipeMT;
  22
  23 class WXDLLIMPEXP_BASE wxConsoleEventLoop
  24 #ifdef __WXOSX__
  25 : public wxCFEventLoop
  26 #else
  27 : public wxEventLoopManual
  28 #endif
  29 {
  30 public:
  31     // initialize the event loop, use IsOk() to check if we were successful
  32     wxConsoleEventLoop();
  33     virtual ~wxConsoleEventLoop();
  34
  35     // implement base class pure virtuals
  36     virtual bool Pending() const;
  37     virtual bool Dispatch();
  38     virtual int DispatchTimeout(unsigned long timeout);
  39     virtual void WakeUp();
  40     virtual bool IsOk() const { return m_dispatcher != NULL; }
  41     virtual bool YieldFor(long WXUNUSED(eventsToProcess)) { return true; }
  42
  43 protected:
  44     virtual void OnNextIteration();
  45
  46 private:
  47     // pipe used for wake up messages: when a child thread wants to wake up
  48     // the event loop in the main thread it writes to this pipe
  49     wxWakeUpPipeMT *m_wakeupPipe;
  50
  51     // the event loop source used to monitor this pipe
  52     wxEventLoopSource* m_wakeupSource;
  53
  54     // either wxSelectDispatcher or wxEpollDispatcher
  55     wxFDIODispatcher *m_dispatcher;
  56
  57     wxDECLARE_NO_COPY_CLASS(wxConsoleEventLoop);
  58 };
  59
  60 #endif // wxUSE_CONSOLE_EVENTLOOP
  61
  62 #endif // _WX_UNIX_EVTLOOP_H_