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 class wxWakeUpPipe;
  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 #if wxUSE_EVENTLOOP_SOURCE
  45     virtual wxEventLoopSource *
  46       AddSourceForFD(int fd, wxEventLoopSourceHandler *handler, int flags);
  47 #endif // wxUSE_EVENTLOOP_SOURCE
  48
  49 protected:
  50     virtual void OnNextIteration();
  51
  52 private:
  53     // pipe used for wake up messages: when a child thread wants to wake up
  54     // the event loop in the main thread it writes to this pipe
  55     wxWakeUpPipe *m_wakeupPipe;
  56
  57     // either wxSelectDispatcher or wxEpollDispatcher
  58     wxFDIODispatcher *m_dispatcher;
  59
  60     wxDECLARE_NO_COPY_CLASS(wxConsoleEventLoop);
  61 };
  62
  63 #endif // wxUSE_CONSOLE_EVENTLOOP
  64
  65 #endif // _WX_UNIX_EVTLOOP_H_