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;
56 internal RemotingProxy (Type type, ClientIdentity identity) : base (type, identity)
58 _sink = identity.ChannelSink;
59 _hasEnvoySink = false;
60 _targetUri = identity.TargetUri;
63 internal RemotingProxy (Type type, string activationUrl, object[] activationAttributes) : base (type)
65 _hasEnvoySink = false;
66 _ctorCall = ActivationServices.CreateConstructionCall (type, activationUrl, activationAttributes);
69 public override IMessage Invoke (IMessage request)
71 IMethodCallMessage mm = request as IMethodCallMessage;
74 if (mm.MethodBase == _cache_GetHashCodeMethod)
75 return new MethodResponse(ObjectIdentity.GetHashCode(), null, null, mm);
77 if (mm.MethodBase == _cache_GetTypeMethod)
78 return new MethodResponse(GetProxiedType(), null, null, mm);
81 IInternalMessage im = request as IInternalMessage;
83 if (im.Uri == null) im.Uri = _targetUri;
84 im.TargetIdentity = _objectIdentity;
87 _objectIdentity.NotifyClientDynamicSinks (true, request, true, false);
92 // Needs to go through the client context sink?
93 if (Thread.CurrentContext.HasExitSinks && !_hasEnvoySink)
94 sink = Thread.CurrentContext.GetClientContextSinkChain ();
98 MonoMethodMessage mMsg = request as MonoMethodMessage;
99 if (mMsg == null || mMsg.CallType == CallType.Sync)
100 response = sink.SyncProcessMessage (request);
103 AsyncResult ares = mMsg.AsyncResult;
104 IMessageCtrl mctrl = sink.AsyncProcessMessage (request, ares);
105 if (ares != null) ares.SetMessageCtrl (mctrl);
106 response = new ReturnMessage (null, new object[0], 0, null, mMsg);
109 _objectIdentity.NotifyClientDynamicSinks (false, request, true, false);
114 internal void AttachIdentity (Identity identity)
116 _objectIdentity = identity;
118 if (identity is ClientActivatedIdentity) // It is a CBO
120 ClientActivatedIdentity cai = (ClientActivatedIdentity)identity;
121 _targetContext = cai.Context;
122 AttachServer (cai.GetServerObject ());
123 cai.SetClientProxy ((MarshalByRefObject) GetTransparentProxy());
126 if (identity is ClientIdentity)
128 ((ClientIdentity)identity).ClientProxy = (MarshalByRefObject) GetTransparentProxy();
129 _targetUri = ((ClientIdentity)identity).TargetUri;
132 _targetUri = identity.ObjectUri;
134 if (_objectIdentity.EnvoySink != null)
136 _sink = _objectIdentity.EnvoySink;
137 _hasEnvoySink = true;
140 _sink = _objectIdentity.ChannelSink;
142 _ctorCall = null; // Object already constructed
145 internal IMessage ActivateRemoteObject (IMethodMessage request)
147 if (_ctorCall == null) // It must be a WKO
148 return new ConstructionResponse (this, null, (IMethodCallMessage) request); // Ignore constructor call for WKOs
150 _ctorCall.CopyFrom (request);
151 return ActivationServices.Activate (this, _ctorCall);
154 public string TypeName
158 if (_objectIdentity is ClientIdentity) {
159 ObjRef oref = _objectIdentity.CreateObjRef (null);
160 if (oref.TypeInfo != null) return oref.TypeInfo.TypeName;
162 return GetProxiedType().AssemblyQualifiedName;
167 throw new NotSupportedException ();
171 public bool CanCastTo (Type fromType, object o)
173 if (_objectIdentity is ClientIdentity) {
174 ObjRef oref = _objectIdentity.CreateObjRef (null);
175 if (oref.IsReferenceToWellKnow && (fromType.IsInterface || GetProxiedType() == typeof(MarshalByRefObject))) return true;
176 if (oref.TypeInfo != null) return oref.TypeInfo.CanCastTo (fromType, o);
178 return fromType.IsAssignableFrom (GetProxiedType());
183 if (_objectIdentity != null)
185 if (!(_objectIdentity is ClientActivatedIdentity)) // Local CBO proxy?
186 RemotingServices.DisposeIdentity (_objectIdentity);