include/wx/private/fdiohandler.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/private/fdiohandler.h
   3 // Purpose:     declares wxFDIOHandler class
   4 // Author:      Vadim Zeitlin
   5 // Created:     2009-08-17
   6 // RCS-ID:      $Id: wxhead.h,v 1.11 2009-06-29 10:23:04 zeitlin Exp $
   7 // Copyright:   (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_PRIVATE_FDIOHANDLER_H_
  12 #define _WX_PRIVATE_FDIOHANDLER_H_
  13
  14 // ----------------------------------------------------------------------------
  15 // wxFDIOHandler: interface used to process events on file descriptors
  16 // ----------------------------------------------------------------------------
  17
  18 class wxFDIOHandler
  19 {
  20 public:
  21     // called when descriptor is available for non-blocking read
  22     virtual void OnReadWaiting() = 0;
  23
  24     // called when descriptor is available  for non-blocking write
  25     virtual void OnWriteWaiting() = 0;
  26
  27     // called when there is exception on descriptor
  28     virtual void OnExceptionWaiting() = 0;
  29
  30     // called to check if the handler is still valid, only used by
  31     // wxSocketImplUnix currently
  32     virtual bool IsOk() const { return true; }
  33
  34     // virtual dtor for the base class
  35     virtual ~wxFDIOHandler() { }
  36 };
  37
  38 #endif // _WX_PRIVATE_FDIOHANDLER_H_
  39