include/wx/unix/private/epolldispatcher.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/unix/private/epolldispatcher.h
   3 // Purpose:     wxEpollDispatcher class
   4 // Authors:     Lukasz Michalski
   5 // Created:     April 2007
   6 // Copyright:   (c) Lukasz Michalski
   7 // RCS-ID:      $Id$
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_PRIVATE_EPOLLDISPATCHER_H_
  12 #define _WX_PRIVATE_EPOLLDISPATCHER_H_
  13
  14 #include "wx/defs.h"
  15
  16 #ifdef wxUSE_EPOLL_DISPATCHER
  17
  18 #include "wx/private/fdiodispatcher.h"
  19
  20 struct epoll_event;
  21
  22 class WXDLLIMPEXP_BASE wxEpollDispatcher : public wxFDIODispatcher
  23 {
  24 public:
  25     // create a new instance of this class, can return NULL if
  26     // epoll() is not supported on this system
  27     //
  28     // the caller should delete the returned pointer
  29     static wxEpollDispatcher *Create();
  30
  31     virtual ~wxEpollDispatcher();
  32
  33     // implement base class pure virtual methods
  34     virtual bool RegisterFD(int fd, wxFDIOHandler* handler, int flags = wxFDIO_ALL);
  35     virtual bool ModifyFD(int fd, wxFDIOHandler* handler, int flags = wxFDIO_ALL);
  36     virtual bool UnregisterFD(int fd);
  37     virtual bool HasPending() const;
  38     virtual int Dispatch(int timeout = TIMEOUT_INFINITE);
  39
  40 private:
  41     // ctor is private, use Create()
  42     wxEpollDispatcher(int epollDescriptor);
  43
  44     // common part of HasPending() and Dispatch(): calls epoll_wait() with the
  45     // given timeout
  46     int DoPoll(epoll_event *events, int numEvents, int timeout) const;
  47
  48
  49     int m_epollDescriptor;
  50 };
  51
  52 #endif // wxUSE_EPOLL_DISPATCHER
  53
  54 #endif // _WX_PRIVATE_SOCKETEVTDISPATCH_H_