114 lines
3.4 KiB
C#
114 lines
3.4 KiB
C#
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//
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// System.Runtime.Remoting.StackBuilderSink.cs
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//
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// Author: Lluis Sanchez Gual (lsg@ctv.es)
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//
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// (C) 2002, Lluis Sanchez Gual
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//
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//
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// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Threading;
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using System.Reflection;
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using System.Runtime.Remoting.Proxies;
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namespace System.Runtime.Remoting.Messaging
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{
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// Sink that calls the real method of the object
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internal class StackBuilderSink: IMessageSink
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{
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MarshalByRefObject _target;
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RealProxy _rp;
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public StackBuilderSink (MarshalByRefObject obj, bool forceInternalExecute)
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{
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_target = obj;
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if (!forceInternalExecute && RemotingServices.IsTransparentProxy (obj))
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_rp = RemotingServices.GetRealProxy (obj);
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}
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public IMessage SyncProcessMessage (IMessage msg)
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{
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CheckParameters (msg);
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// Makes the real call to the object
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if (_rp != null) return _rp.Invoke (msg);
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else return RemotingServices.InternalExecuteMessage (_target, (IMethodCallMessage)msg);
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}
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public IMessageCtrl AsyncProcessMessage (IMessage msg, IMessageSink replySink)
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{
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object[] parms = new object[] {msg, replySink};
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ThreadPool.QueueUserWorkItem (new WaitCallback ((data) => {
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try {
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ExecuteAsyncMessage (data);
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} catch {}
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}
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), parms);
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return null;
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}
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void ExecuteAsyncMessage (object ob)
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{
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object[] parms = (object[]) ob;
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IMethodCallMessage msg = (IMethodCallMessage) parms[0];
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IMessageSink replySink = (IMessageSink)parms[1];
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CheckParameters (msg);
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IMessage res;
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if (_rp != null) res = _rp.Invoke (msg);
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else res = RemotingServices.InternalExecuteMessage (_target, msg);
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replySink.SyncProcessMessage (res);
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}
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public IMessageSink NextSink
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{
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get { return null; }
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}
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void CheckParameters (IMessage msg)
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{
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IMethodCallMessage mcm = (IMethodCallMessage) msg;
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ParameterInfo[] parameters = mcm.MethodBase.GetParameters();
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int narg = 0;
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foreach (ParameterInfo pi in parameters)
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{
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object pval = mcm.GetArg (narg++);
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Type pt = pi.ParameterType;
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if (pt.IsByRef) pt = pt.GetElementType ();
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if (pval != null && !pt.IsInstanceOfType (pval))
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throw new RemotingException ("Cannot cast argument " + pi.Position + " of type '" + pval.GetType().AssemblyQualifiedName +
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"' to type '" + pt.AssemblyQualifiedName + "'");
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}
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}
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}
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}
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