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