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diff --git a/network/akgnet_selector.hh b/network/akgnet_selector.hh
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+/*
+* This file is part of rasdaman community.
+*
+* Rasdaman community is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* Rasdaman community is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
+*
+* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
+rasdaman GmbH.
+*
+* For more information please see <http://www.rasdaman.org>
+* or contact Peter Baumann via <baumann@rasdaman.com>.
+/
+/**
+ * INCLUDE: akgnet_selector.hh
+ *
+ * MODULE:  akg network
+ * CLASS:   Selector
+ *
+ * COMMENTS:
+ * Namespace akg
+ * 
+*/
+
+#ifndef AKGNET_SELECTOR
+#define AKGNET_SELECTOR
+
+#include "akgnet_common.hh"
+
+namespace akg
+  {
+  
+/** This class envelops the 'select' function of the C-library
+*/
+
+class Selector
+  {
+    public:
+      /// Default constructor
+      Selector() throw();
+      
+      /// Sets the timeout interval
+      void setTimeout(int sec,int milisec) throw();
+      
+      /// Disables the timeout
+      void disableTimeout() throw();
+      
+      /// Registers the file descriptor for reading
+      void setRead(int fdescr) throw();
+      /// Unregisters the file descriptor from reading
+      void clearRead(int fdescr) throw();
+      
+      /// Registers the file descriptor for writing
+      void setWrite(int fdescr) throw();
+      /// Unregisters the file descriptor from writing
+      void clearWrite(int fdescr) throw();
+    
+      /// The real 'select' operation. The return value is the one of 'select'
+      int operator()() throw();
+      
+      /// Returns true if the file descriptor is registered for read
+      bool isRead(int fdescr) throw();
+      /// Returns true if the file descriptor is registered for write
+      bool isWrite(int fdescr) throw();
+      
+      /** Closes all file descriptors. Usefull when forking so 
+          child processes don't inherit this file descriptors
+      */ 
+      void closeForcedAllFileDescriptors() throw();
+    private:
+      fd_set watchReadFdSet;
+      fd_set watchWriteFdSet;  
+      fd_set watchExceptFdSet; // unused but ...
+    
+      fd_set resultReadFdSet;
+      fd_set resultWriteFdSet; 
+      fd_set resultExceptFdSet; // unused but ...
+    
+      struct timeval tvinit;
+      struct timeval tv;
+      timeval *tvptr;
+      
+   };
+
+} // namespace
+#endif