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 wxFDIODispatcher;
  21
  22 namespace wxPrivate
  23 {
  24     class PipeIOHandler;
  25 }
  26
  27 class WXDLLIMPEXP_BASE wxConsoleEventLoop : public wxEventLoopManual
  28 {
  29 public:
  30     // initialize the event loop, use IsOk() to check if we were successful
  31     wxConsoleEventLoop();
  32     virtual ~wxConsoleEventLoop();
  33
  34     // implement base class pure virtuals
  35     virtual bool Pending() const;
  36     virtual bool Dispatch();
  37     virtual int DispatchTimeout(unsigned long timeout);
  38     virtual void WakeUp();
  39     virtual bool IsOk() const { return m_dispatcher != NULL; }
  40     virtual bool YieldFor(long WXUNUSED(eventsToProcess)) { return true; }
  41
  42 protected:
  43     virtual void OnNextIteration();
  44
  45 private:
  46     // pipe used for wake up messages: when a child thread wants to wake up
  47     // the event loop in the main thread it writes to this pipe
  48     wxPrivate::PipeIOHandler *m_wakeupPipe;
  49
  50     // either wxSelectDispatcher or wxEpollDispatcher
  51     wxFDIODispatcher *m_dispatcher;
  52
  53     wxDECLARE_NO_COPY_CLASS(wxConsoleEventLoop);
  54 };
  55
  56 #endif // wxUSE_CONSOLE_EVENTLOOP
  57
  58 #endif // _WX_UNIX_EVTLOOP_H_