implement event loop for console applications (heavily modified patch 1715735)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@46029 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/unix/private/epolldispatcher.h

@@ -0,0 +1,47 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/private/epolldispatcher.h
+// Purpose:     wxEpollDispatcher class
+// Authors:     Lukasz Michalski
+// Created:     April 2007
+// Copyright:   (c) Lukasz Michalski
+// RCS-ID:      $Id$
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_PRIVATE_EPOLLDISPATCHER_H_
+#define _WX_PRIVATE_EPOLLDISPATCHER_H_
+
+#include "wx/defs.h"
+
+#ifdef HAVE_SYS_EPOLL_H
+
+#include "wx/private/fdiodispatcher.h"
+
+class WXDLLIMPEXP_CORE wxEpollDispatcher : public wxFDIODispatcher
+{
+public:
+    // get pointer to the unique instance of this class, can return NULL if
+    // epoll() is not supported on this system
+    //
+    // do not delete the returned pointer
+    static wxEpollDispatcher *Get();
+
+    // implement base class pure virtual methods
+    virtual bool RegisterFD(int fd, wxFDIOHandler* handler, int flags = wxFDIO_ALL);
+    virtual bool ModifyFD(int fd, wxFDIOHandler* handler, int flags = wxFDIO_ALL);
+    virtual wxFDIOHandler *UnregisterFD(int fd, int flags = wxFDIO_ALL);
+    virtual void RunLoop(int timeout = TIMEOUT_INFINITE);
+
+private:
+    // ctor is private, use Get()
+    wxEpollDispatcher();
+
+    // return true if the object was successfully initialized
+    bool IsOk() const { return m_epollDescriptor != -1; }
+
+    int m_epollDescriptor;
+};
+
+#endif // HAVE_SYS_EPOLL_H
+
+#endif // _WX_PRIVATE_SOCKETEVTDISPATCH_H_