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