mcs/class/corlib/System.Runtime.Remoting.Services/TrackingServices.cs

   1 //
   2 // System.Runtime.Remoting.Services.TrackingServices.cs
   3 //
   4 // Author:
   5 //      Jaime Anguiano Olarra (jaime@gnome.org)
   6 //      Patrik Torstensson
   7 //
   8 // (C) 2002, Jaime Anguiano Olarra
   9 //
  10
  11 //
  12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33
  34 using System;
  35 using System.Collections;
  36 using System.Runtime.Remoting;
  37 using System.Runtime.InteropServices;
  38
  39 namespace System.Runtime.Remoting.Services {
  40         [ComVisible (true)]
  41         public class TrackingServices {
  42                 static ArrayList _handlers = new ArrayList();
  43
  44                 public TrackingServices () {
  45                 }
  46
  47                 public static void RegisterTrackingHandler (ITrackingHandler handler) {
  48                         if (null == handler)
  49                                 throw new ArgumentNullException("handler");
  50
  51                         lock (_handlers.SyncRoot) {
  52                                 if (-1 != _handlers.IndexOf(handler))
  53                                         throw new RemotingException("handler already registered");
  54
  55                                 _handlers.Add(handler);
  56                         }
  57                 }
  58
  59                 public static void UnregisterTrackingHandler (ITrackingHandler handler) {
  60                         if (null == handler)
  61                                 throw new ArgumentNullException("handler");
  62
  63                         lock (_handlers.SyncRoot) {
  64                                 int idx = _handlers.IndexOf(handler);
  65                                 if (idx == -1)
  66                                         throw new RemotingException("handler is not registered");
  67
  68                                 _handlers.RemoveAt(idx);
  69                         }
  70                 }
  71     \r
  72                 public static ITrackingHandler[] RegisteredHandlers {\r
  73                         get {\r
  74                                 lock (_handlers.SyncRoot) {\r
  75                                         if (_handlers.Count == 0)\r
  76                                                 return new ITrackingHandler[0];\r
  77 \r
  78 \r
  79                                         return (ITrackingHandler[]) _handlers.ToArray (typeof(ITrackingHandler));\r
  80                                 }\r
  81                         }\r
  82                 }\r
  83 \r
  84                 internal static void NotifyMarshaledObject(Object obj, ObjRef or)
  85                 {\r
  86                         ITrackingHandler[] handlers;
  87                         \r
  88                         lock (_handlers.SyncRoot) {
  89                                 if (_handlers.Count == 0) return;
  90                                 handlers = (ITrackingHandler[]) _handlers.ToArray (typeof(ITrackingHandler));
  91                         }
  92                         \r
  93                         for(int i = 0; i < handlers.Length; i++) {\r
  94                                 handlers[i].MarshaledObject (obj, or);\r
  95                         }\r
  96                 }\r
  97     \r
  98                 internal static void NotifyUnmarshaledObject(Object obj, ObjRef or)
  99                 {\r
 100                         ITrackingHandler[] handlers;
 101                         \r
 102                         lock (_handlers.SyncRoot) {
 103                                 if (_handlers.Count == 0) return;
 104                                 handlers = (ITrackingHandler[]) _handlers.ToArray (typeof(ITrackingHandler));
 105                         }
 106                         \r
 107                         for(int i = 0; i < handlers.Length; i++) {\r
 108                                 handlers[i].UnmarshaledObject (obj, or);\r
 109                         }\r
 110                 }\r
 111 \r
 112                 internal static void NotifyDisconnectedObject(Object obj)
 113                 {\r
 114                         ITrackingHandler[] handlers;
 115                         \r
 116                         lock (_handlers.SyncRoot) {
 117                                 if (_handlers.Count == 0) return;
 118                                 handlers = (ITrackingHandler[]) _handlers.ToArray (typeof(ITrackingHandler));
 119                         }
 120                         \r
 121                         for(int i = 0; i < handlers.Length; i++) {\r
 122                                 handlers[i].DisconnectedObject (obj);\r
 123                         }\r
 124                 }\r
 125         }
 126 }
 127