moved wxX11's wxSocketTable to private wxSocketEventDispatcher class reusable in other ports (backport from SOC2006_SOCKETS branch); use it in wxDFB

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43976 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/private/socketevtdispatch.h

@@ -0,0 +1,67 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/private/socketevtdispatch.h
+// Purpose:     wxSocketEventDispatcher class
+// Authors:     Angel Vidal
+// Modified by:
+// Created:     August 2006
+// Copyright:   (c) Angel Vidal
+// RCS-ID:      $Id$
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_PRIVATE_SOCKETEVTDISPATCH_H_
+#define _WX_PRIVATE_SOCKETEVTDISPATCH_H_
+
+#include "wx/defs.h"
+
+#if wxUSE_SOCKETS
+
+#include "wx/hash.h"
+
+// forward declarations
+class wxSocketEventDispatcherEntry;
+class GSocket;
+
+enum wxSocketEventDispatcherType
+{
+    wxSocketEventDispatcherInput,
+    wxSocketEventDispatcherOutput
+};
+
+class WXDLLIMPEXP_CORE wxSocketEventDispatcher : public wxHashTable
+{
+protected:
+    wxSocketEventDispatcher() : wxHashTable(wxKEY_INTEGER) {}
+
+public:
+    // returns instance of the table
+    static wxSocketEventDispatcher& Get();
+
+    virtual ~wxSocketEventDispatcher()
+    {
+        WX_CLEAR_HASH_TABLE(*this)
+    }
+
+    void RegisterCallback(int fd, wxSocketEventDispatcherType socketType,
+                          GSocket* socket);
+
+    void UnregisterCallback(int fd, wxSocketEventDispatcherType socketType);
+
+    void RunLoop(int timeout = 0);
+
+private:
+    void AddEvents(fd_set* readset, fd_set* writeset);
+
+    int FillSets(fd_set* readset, fd_set* writeset);
+
+    wxSocketEventDispatcherEntry* FindEntry(int fd);
+
+private:
+    static wxSocketEventDispatcher *ms_instance;
+
+    friend class wxSocketEventDispatcherModule;
+};
+
+#endif // wxUSE_SOCKETS
+
+#endif // _WX_PRIVATE_SOCKETEVTDISPATCH_H_