mcs/class/corlib/System.Runtime.Remoting.Lifetime/LeaseSink.cs

   1 //
   2 // System.Runtime.Remoting.LeaseSink.cs
   3 //
   4 // Author: Lluis Sanchez Gual (lluis@ideary.com)
   5 //
   6 // (C) 2002, Lluis Sanchez Gual
   7 //
   8
   9 //
  10 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33 using System.Runtime.Remoting.Messaging;
  34
  35 namespace System.Runtime.Remoting.Lifetime
  36 {
  37         // This sink updates lifetime information
  38         // about an object
  39
  40         internal class LeaseSink: IMessageSink
  41         {
  42                 IMessageSink _nextSink;
  43
  44                 public LeaseSink (IMessageSink nextSink)
  45                 {
  46                         _nextSink = nextSink;
  47                 }
  48
  49                 public IMessage SyncProcessMessage (IMessage msg)
  50                 {
  51                         RenewLease (msg);
  52                         return _nextSink.SyncProcessMessage (msg);
  53                 }
  54
  55                 public IMessageCtrl AsyncProcessMessage (IMessage msg, IMessageSink replySink)
  56                 {
  57                         RenewLease (msg);
  58                         return _nextSink.AsyncProcessMessage (msg, replySink);
  59                 }
  60
  61                 void RenewLease (IMessage msg)
  62                 {
  63                         ServerIdentity identity = (ServerIdentity) RemotingServices.GetMessageTargetIdentity (msg);
  64
  65                         ILease lease = identity.Lease;
  66                         if (lease != null && lease.CurrentLeaseTime < lease.RenewOnCallTime)
  67                                 lease.Renew (lease.RenewOnCallTime);
  68                 }
  69
  70                 public IMessageSink NextSink
  71                 {
  72                         get { return _nextSink; }
  73                 }
  74         }
  75 }