2 // System.Runtime.Remoting.Proxies.RemotingProxy.cs
5 // Dietmar Maurer (dietmar@ximian.com)
6 // Lluis Sanchez Gual (lsg@ctv.es)
8 // (C) 2001 Ximian, Inc. http://www.ximian.com
12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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:
22 // The above copyright notice and this permission notice shall be
23 // included in all copies or substantial portions of the Software.
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.
35 using System.Reflection;
36 using System.Runtime.Remoting.Messaging;
37 using System.Runtime.Remoting.Activation;
38 using System.Runtime.Remoting.Channels;
39 using System.Runtime.Remoting.Contexts;
40 using System.Runtime.CompilerServices;
41 using System.Threading;
44 namespace System.Runtime.Remoting.Proxies
47 internal class RemotingProxy : RealProxy, IRemotingTypeInfo
49 static MethodInfo _cache_GetTypeMethod = typeof(System.Object).GetMethod("GetType");
50 static MethodInfo _cache_GetHashCodeMethod = typeof(System.Object).GetMethod("GetHashCode");
54 ConstructionCall _ctorCall;
57 internal RemotingProxy (Type type, ClientIdentity identity) : base (type, identity)
59 _sink = identity.ChannelSink;
60 _hasEnvoySink = false;
61 _targetUri = identity.TargetUri;
64 internal RemotingProxy (Type type, string activationUrl, object[] activationAttributes) : base (type)
66 _hasEnvoySink = false;
67 _ctorCall = ActivationServices.CreateConstructionCall (type, activationUrl, activationAttributes);
70 public override IMessage Invoke (IMessage request)
72 IMethodCallMessage mm = request as IMethodCallMessage;
75 if (mm.MethodBase == _cache_GetHashCodeMethod)
76 return new MethodResponse(ObjectIdentity.GetHashCode(), null, null, mm);
78 if (mm.MethodBase == _cache_GetTypeMethod)
79 return new MethodResponse(GetProxiedType(), null, null, mm);
82 IInternalMessage im = request as IInternalMessage;
84 if (im.Uri == null) im.Uri = _targetUri;
85 im.TargetIdentity = _objectIdentity;
88 _objectIdentity.NotifyClientDynamicSinks (true, request, true, false);
93 // Needs to go through the client context sink?
94 if (Thread.CurrentContext.HasExitSinks && !_hasEnvoySink)
95 sink = Thread.CurrentContext.GetClientContextSinkChain ();
99 MonoMethodMessage mMsg = request as MonoMethodMessage;
100 if (mMsg == null || mMsg.CallType == CallType.Sync)
101 response = sink.SyncProcessMessage (request);
104 AsyncResult ares = mMsg.AsyncResult;
105 IMessageCtrl mctrl = sink.AsyncProcessMessage (request, ares);
106 if (ares != null) ares.SetMessageCtrl (mctrl);
107 response = new ReturnMessage (null, new object[0], 0, null, mMsg);
110 _objectIdentity.NotifyClientDynamicSinks (false, request, true, false);
115 internal void AttachIdentity (Identity identity)
117 _objectIdentity = identity;
119 if (identity is ClientActivatedIdentity) // It is a CBO
121 ClientActivatedIdentity cai = (ClientActivatedIdentity)identity;
122 _targetContext = cai.Context;
123 AttachServer (cai.GetServerObject ());
124 cai.SetClientProxy ((MarshalByRefObject) GetTransparentProxy());
127 if (identity is ClientIdentity)
129 ((ClientIdentity)identity).ClientProxy = (MarshalByRefObject) GetTransparentProxy();
130 _targetUri = ((ClientIdentity)identity).TargetUri;
133 _targetUri = identity.ObjectUri;
135 if (_objectIdentity.EnvoySink != null)
137 _sink = _objectIdentity.EnvoySink;
138 _hasEnvoySink = true;
141 _sink = _objectIdentity.ChannelSink;
143 _ctorCall = null; // Object already constructed
146 internal IMessage ActivateRemoteObject (IMethodMessage request)
148 if (_ctorCall == null) // It must be a WKO
149 return new ConstructionResponse (this, null, (IMethodCallMessage) request); // Ignore constructor call for WKOs
151 _ctorCall.CopyFrom (request);
152 return ActivationServices.Activate (this, _ctorCall);
155 public string TypeName
159 if (_objectIdentity is ClientIdentity) {
160 ObjRef oref = _objectIdentity.CreateObjRef (null);
161 if (oref.TypeInfo != null) return oref.TypeInfo.TypeName;
163 return GetProxiedType().AssemblyQualifiedName;
168 throw new NotSupportedException ();
172 public bool CanCastTo (Type fromType, object o)
174 if (_objectIdentity is ClientIdentity) {
175 ObjRef oref = _objectIdentity.CreateObjRef (null);
176 if (oref.IsReferenceToWellKnow && (fromType.IsInterface || GetProxiedType() == typeof(MarshalByRefObject))) return true;
177 if (oref.TypeInfo != null) return oref.TypeInfo.CanCastTo (fromType, o);
179 return fromType.IsAssignableFrom (GetProxiedType());
184 if (_objectIdentity != null)
186 if (!(_objectIdentity is ClientActivatedIdentity)) // Local CBO proxy?
187 RemotingServices.DisposeIdentity (_objectIdentity);