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 class wxUnixEventLoopSource;
  22
  23 namespace wxPrivate
  24 {
  25     class PipeIOHandler;
  26 }
  27
  28 class WXDLLIMPEXP_BASE wxConsoleEventLoop
  29 #ifdef __WXOSX__
  30 : public wxCFEventLoop
  31 #else
  32 : public wxEventLoopManual
  33 #endif
  34 {
  35 public:
  36     // initialize the event loop, use IsOk() to check if we were successful
  37     wxConsoleEventLoop();
  38     virtual ~wxConsoleEventLoop();
  39
  40     // implement base class pure virtuals
  41     virtual bool Pending() const;
  42     virtual bool Dispatch();
  43     virtual int DispatchTimeout(unsigned long timeout);
  44     virtual void WakeUp();
  45     virtual bool IsOk() const { return m_dispatcher != NULL; }
  46     virtual bool YieldFor(long WXUNUSED(eventsToProcess)) { return true; }
  47
  48 #if wxUSE_EVENTLOOP_SOURCE
  49     virtual wxEventLoopSource *
  50       AddSourceForFD(int fd, wxEventLoopSourceHandler *handler, int flags);
  51 #endif // wxUSE_EVENTLOOP_SOURCE
  52
  53 protected:
  54     virtual void OnNextIteration();
  55
  56 private:
  57     // pipe used for wake up messages: when a child thread wants to wake up
  58     // the event loop in the main thread it writes to this pipe
  59     wxPrivate::PipeIOHandler *m_wakeupPipe;
  60
  61     // either wxSelectDispatcher or wxEpollDispatcher
  62     wxFDIODispatcher *m_dispatcher;
  63
  64     wxDECLARE_NO_COPY_CLASS(wxConsoleEventLoop);
  65 };
  66
  67 #endif // wxUSE_CONSOLE_EVENTLOOP
  68
  69 #endif // _WX_UNIX_EVTLOOP_H_