mcs/class/System.Net/System.Net.NetworkInformation/NetworkChange_2_1.cs

   1 //
   2 // System.Net.NetworkInformation.NetworkChange
   3 //
   4 // Author:
   5 //      Gonzalo Paniagua Javier (gonzalo@novell.com)
   6 //
   7 // Copyright (c) 2006, 2009 Novell, Inc. (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 #if NET_2_1
  29 using System.Runtime.InteropServices;
  30
  31 namespace System.Net.NetworkInformation {
  32         public abstract class NetworkChange {
  33                 internal delegate void NetworkStateChangedCallback (IntPtr sender, IntPtr data);
  34                 static NetworkChange ()
  35                 {
  36                         state_changed_callback = new NetworkStateChangedCallback (StateChangedCallback);
  37                         moon_network_service_set_network_state_changed_callback (runtime_get_network_service(),
  38                                                                                  state_changed_callback,
  39                                                                                  IntPtr.Zero);
  40                 }
  41
  42                 static NetworkStateChangedCallback state_changed_callback;
  43
  44                 static void StateChangedCallback (IntPtr sender, IntPtr data)
  45                 {
  46                         NetworkAddressChangedEventHandler h = NetworkAddressChanged;
  47                         if (h != null)
  48                                 h (null, EventArgs.Empty);
  49                 }
  50
  51                 protected NetworkChange ()
  52                 {
  53                 }
  54
  55                 public static event NetworkAddressChangedEventHandler NetworkAddressChanged;
  56
  57                 [DllImport ("moon")]
  58                 internal extern static IntPtr runtime_get_network_service ();
  59
  60                 [DllImport ("moon")]
  61                 internal extern static void moon_network_service_set_network_state_changed_callback (IntPtr service,
  62                                                                                                      NetworkStateChangedCallback handler, IntPtr data);
  63
  64                 [DllImport ("moon")]
  65                 internal extern static bool moon_network_service_get_is_network_available (IntPtr service);
  66         }
  67 }
  68 #endif
  69