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