Ejemplo n.º 1
0
        [System.Security.SecurityCritical]  // auto-generated
        private void PrivateInvoke(ref MessageData msgData, int type) 
        { 
            IMessage reqMsg = null;
            CallType callType = (CallType)type; 
            IMessage retMsg = null;
            int msgFlags = -1;

            // Used only for Construction case 
            RemotingProxy rp = null;
 
            // Create a message object based on the type of call 
            if(CallType.MethodCall == callType)
            { 
                Message msg = new Message();
                msg.InitFields(msgData);
                reqMsg = msg;
                msgFlags = msg.GetCallType(); 
            }
            else if (CallType.ConstructorCall == (CallType)callType) 
            { 
                // We use msgFlags to handle CallContext around
                // the virtual call to Invoke() 
                msgFlags = Message.[....];
 internal void SetFrame(MessageData msgData)
 {
     this._message = new Message();
     this._message.InitFields(msgData);
 }
Ejemplo n.º 3
0
        [System.Security.SecurityCritical]  // auto-generated
        private void PrivateInvoke(ref MessageData msgData, int type)
        {
            IMessage reqMsg = null;
            CallType callType = (CallType)type;
            IMessage retMsg = null;
            int msgFlags = -1;

            // Used only for Construction case
            RemotingProxy rp = null;
            
            // Create a message object based on the type of call
            if(CallType.MethodCall == callType)
            {
                Message msg = new Message();
                msg.InitFields(msgData);
                reqMsg = msg;
                msgFlags = msg.GetCallType();
            }
            else if (CallType.ConstructorCall == (CallType)callType)
            {
                // We use msgFlags to handle CallContext around 
                // the virtual call to Invoke()
                msgFlags = Message.Sync;
                
                rp = this as RemotingProxy;
                ConstructorCallMessage ctorMsg = null;
                bool bIsWellKnown = false;
                if(!IsRemotingProxy())
                {
                    // Create a new constructor call message
                    // <

                    ctorMsg = new ConstructorCallMessage(null, null, null, (RuntimeType)GetProxiedType());
                }                                
                else
                {
                    // Extract the constructor message set in the first step of activation.
                    ctorMsg = rp.ConstructorMessage;                                         
                    // If the proxy is a wellknown client proxy, we don't 
                    // need to run the c'tor.
                    Identity id = rp.IdentityObject;
                    if (id != null)
                        bIsWellKnown = id.IsWellKnown();
                }
                
                if ((null == ctorMsg) || bIsWellKnown)
                {
                    // This is also used to short-circuit the activation path
                    // when we have a well known proxy that has already been
                    // initialized (there's a race condition if we don't do this).
                    //      
                
                    // This is a special case, where we have a remoting proxy
                    // but the constructormessage hasn't been setup.
                    // so let us just bail out.. 
                    // this is currently used by ServicedComponent's for cross appdomain
                    // pooling: <EMAIL>Microsoft</EMAIL>
                    //                    
                    ctorMsg = new ConstructorCallMessage(null, null, null, (RuntimeType)GetProxiedType());                    
                    // Set the constructor frame info in the CCM
                    ctorMsg.SetFrame(msgData); 
                    reqMsg = ctorMsg;

                    // If this was the default ctor, check that default .ctor was called.
                    if (bIsWellKnown)
                    {
                        Contract.Assert(rp!=null, "RemotingProxy expected here!");
                        // Clear any cached ctorMsg on the RemotingProxy
                        rp.ConstructorMessage = null;               

                        // We did execute a Connect. Throw if the client
                        // code is also trying to use a non-default constructor at
                        // the same time.
                        if (ctorMsg.ArgCount != 0)
                        {
                            throw new RemotingException(
                                Environment.GetResourceString(
                                    "Remoting_Activation_WellKnownCTOR"));
                        }
                    }
                    
                    // Create a constructor return message
                    retMsg = 
                        new ConstructorReturnMessage((MarshalByRefObject)GetTransparentProxy(), 
                            null, 
                            0, 
                            null, 
                            ctorMsg);
                }
                else
                {                
                    // Set the constructor frame info in the CCM
                    ctorMsg.SetFrame(msgData);
                    reqMsg = ctorMsg;
                }
            }
            else
            {
                Contract.Assert(false, "Unknown call type");
            }

            // Make sure that outgoing remote calls are counted.
            ChannelServices.IncrementRemoteCalls();

            // For non-remoting proxies, EndAsync should not call Invoke()
            // because the proxy cannot support Async and the call has already
            // finished executing in BeginAsync
            if (!IsRemotingProxy() 
                && ((msgFlags&Message.EndAsync)==Message.EndAsync))
            {

                Message msg = reqMsg as Message;
                retMsg = EndInvokeHelper(msg, true);
                Contract.Assert(null != retMsg, "null != retMsg");
            }

            // Invoke
            Contract.Assert(null != reqMsg, "null != reqMsg");
            if (null == retMsg)
            {
                // NOTE: there are cases where we setup a return message 
                // and we don't want the activation call to go through
                // refer to the note above for ServicedComponents and Cross Appdomain
                // pooling

                LogicalCallContext cctx = null;
                Thread currentThread = Thread.CurrentThread;
                // Pick up or clone the call context from the thread 
                // and install it in the reqMsg as appropriate
                cctx = currentThread.GetMutableExecutionContext().LogicalCallContext;
                SetCallContextInMessage(reqMsg, msgFlags, cctx);
                
                // Add the outgoing "Header"'s to the message.
                cctx.PropagateOutgoingHeadersToMessage(reqMsg);
                retMsg = Invoke(reqMsg);                

                // Get the call context returned and set it on the thread
                ReturnCallContextToThread(currentThread, retMsg, msgFlags, cctx);

                // Pull response "Header"'s out of the message
                Thread.CurrentThread.GetMutableExecutionContext().LogicalCallContext.PropagateIncomingHeadersToCallContext(retMsg);
            }

            if (!IsRemotingProxy()
                && ((msgFlags&Message.BeginAsync) == Message.BeginAsync))
            {

                // This was a begin-async on a non-Remoting Proxy. For V-1 they 
                // cannot support Async and end up doing a Sync call. We need 
                // to fill up here to make the call look like async to 
                // the caller. 
                // Create the async result to return
                Message msg = reqMsg as Message;
                AsyncResult ar = new AsyncResult(msg);
                // Tell the async result that the call has actually completed 
                // so it can hold on to the return message.
                ar.SyncProcessMessage(retMsg);       
                // create a returnMessage to propagate just the asyncResult back
                // to the caller's stack.
                retMsg = new ReturnMessage(ar, null, 0, null/*cctx*/, msg);
            }
            
            // Propagate out parameters
            HandleReturnMessage(reqMsg, retMsg);

            // For constructor calls do some extra bookkeeping
            if(CallType.ConstructorCall == callType)
            {
                // NOTE: It is the responsiblity of the callee to propagate
                // the out parameters

                // Everything went well, we are ready to return
                // a proxy to the caller
                // Extract the return value
                MarshalByRefObject retObj = null;
                IConstructionReturnMessage ctorRetMsg = retMsg as IConstructionReturnMessage;
                if(null == ctorRetMsg)
                {
                    throw new RemotingException(
                        Environment.GetResourceString("Remoting_Proxy_BadReturnTypeForActivation"));
                }

                ConstructorReturnMessage crm = ctorRetMsg as ConstructorReturnMessage;
                if (null != crm)
                {
                    // If return message is of type ConstructorReturnMessage 
                    // this is an in-appDomain activation. So no unmarshaling
                    // needed.

                    retObj = (MarshalByRefObject)crm.GetObject();
                    if (retObj == null)
                    {
                        throw new RemotingException(
                            Environment.GetResourceString("Remoting_Activation_NullReturnValue"));
                    }
                }
                else
                {
                    // Fetch the objRef out of the returned message and unmarshal it
                    retObj = (MarshalByRefObject)RemotingServices.InternalUnmarshal(
                                (ObjRef)ctorRetMsg.ReturnValue,
                                GetTransparentProxy(),
                                true /*fRefine*/);

                    if (retObj == null)
                    {
                        throw new RemotingException(
                            Environment.GetResourceString("Remoting_Activation_NullFromInternalUnmarshal"));
                    }
                }

                if (retObj != (MarshalByRefObject)GetTransparentProxy())
                {
                    throw new RemotingException(
                        Environment.GetResourceString(
                            "Remoting_Activation_InconsistentState"));
                }
                
                if (IsRemotingProxy())
                {
                    // Clear any cached ctorMsg on the RemotingProxy
                    rp.ConstructorMessage = null;
                }
            }
        }
        private static void Invoke(object NotUsed, ref MessageData msgData)
        {
            Message reqMcmMsg = new Message();
            reqMcmMsg.InitFields(msgData);
            Delegate thisPtr = reqMcmMsg.GetThisPtr() as Delegate;
            if (thisPtr == null)
            {
                throw new RemotingException(Environment.GetResourceString("Remoting_Default"));
            }
            RemotingProxy realProxy = (RemotingProxy) RemotingServices.GetRealProxy(thisPtr.Target);
            if (realProxy != null)
            {
                realProxy.InternalInvoke(reqMcmMsg, true, reqMcmMsg.GetCallType());
            }
            else
            {
                int callType = reqMcmMsg.GetCallType();
                switch (callType)
                {
                    case 1:
                    case 9:
                    {
                        reqMcmMsg.Properties[Message.CallContextKey] = CallContext.GetLogicalCallContext().Clone();
                        AsyncResult retVal = new AsyncResult(reqMcmMsg);
                        AgileAsyncWorkerItem state = new AgileAsyncWorkerItem(reqMcmMsg, ((callType & 8) != 0) ? null : retVal, thisPtr.Target);
                        ThreadPool.QueueUserWorkItem(new WaitCallback(AgileAsyncWorkerItem.ThreadPoolCallBack), state);
                        if ((callType & 8) != 0)
                        {
                            retVal.SyncProcessMessage(null);
                        }
                        reqMcmMsg.PropagateOutParameters(null, retVal);
                        break;
                    }
                    case 2:
                        RealProxy.EndInvokeHelper(reqMcmMsg, false);
                        return;

                    case 10:
                        break;

                    default:
                        return;
                }
            }
        }
Ejemplo n.º 5
0
        // Invoke for case where call is in the same context as the server object
        // (This special static method is used for AsyncDelegate-s ... this is called
        // directly from the EE)
        private static void Invoke(Object NotUsed, ref MessageData msgData)
        {
            Message m = new Message();
            m.InitFields(msgData);

            Object thisPtr = m.GetThisPtr();
            Delegate d;
            if ((d = thisPtr as Delegate) != null)
            {
                RemotingProxy rp = (RemotingProxy)
                    RemotingServices.GetRealProxy(d.Target);

                if (rp != null)
                {
                    rp.InternalInvoke(m, true, m.GetCallType());
                }
                else
                {
                    int callType = m.GetCallType();
                    AsyncResult ar;
                    switch (callType)
                    {
                    case Message.BeginAsync:
                    case Message.BeginAsync | Message.OneWay:
                        // pick up call context from the thread
                        m.Properties[Message.CallContextKey] =
                            CallContext.GetLogicalCallContext().Clone();
                        ar = new AsyncResult(m);
                        AgileAsyncWorkerItem  workItem = 
                            new AgileAsyncWorkerItem(
                                    m, 
                                    ((callType & Message.OneWay) != 0) ? 
                                        null : ar, d.Target);

                        ThreadPool.QueueUserWorkItem(
                            new WaitCallback(
                                    AgileAsyncWorkerItem.ThreadPoolCallBack),
                            workItem);

                        if ((callType & Message.OneWay) != 0)
                        {
                            ar.SyncProcessMessage(null);
                        }
                        m.PropagateOutParameters(null, ar);
                        break;

                    case (Message.EndAsync | Message.OneWay):
                        return;

                    case Message.EndAsync:
                        // This will also merge back the call context
                        // onto the thread that called EndAsync
                        RealProxy.EndInvokeHelper(m, false);
                        break;
                    default:
                        BCLDebug.Assert(
                            false, 
                            "Should never be here. Sync delegate code for agile object ended up in remoting");
            break;
                    }
                }
            }
            else
            {
                // Static invoke called with incorrect this pointer ...
                throw new RemotingException(
                    Environment.GetResourceString(
                        "Remoting_Default"));                    
            }
        }
Ejemplo n.º 6
0
        // Private method invoked by the transparent proxy
        private void PrivateInvoke(ref MessageData msgData, int type)
        {
            IMessage reqMsg   = null;
            CallType callType = (CallType)type;
            IMessage retMsg   = null;
            int      msgFlags = -1;

            // Create a message object based on the type of call
            if (CallType.MethodCall == callType)
            {
                Message msg = new Message();
                msg.InitFields(msgData);
                reqMsg   = msg;
                msgFlags = msg.GetCallType();
            }
            else if (CallType.ConstructorCall == (CallType)callType)
            {
                // We use msgFlags to handle CallContext around
                // the virtual call to Invoke()
                msgFlags = Message.Sync;

                ConstructorCallMessage ctorMsg = null;
                RemotingProxy          rp      = this as RemotingProxy;
                if (null == rp)
                {
                    // Create a new constructor call message
                    ctorMsg = new ConstructorCallMessage(null, null, null, GetProxiedType());
                }
                else
                {
                    // Extract the constructor message set in the first step of activation.
                    ctorMsg = rp.ConstructorMessage;
                }

                // If the proxy is a wellknown client proxy, we don't need to run the c'tor.
                bool bIsWellKnown = false;
                if (rp != null)
                {
                    Identity id = rp.IdentityObject;
                    if (id != null)
                    {
                        bIsWellKnown = id.IsWellKnown();
                    }
                }

                if ((null == ctorMsg) || bIsWellKnown)
                {
                    // This is also used to short-circuit the activation path
                    // when we have a well known proxy that has already been
                    // initialized (there's a race condition if we don't do this).
                    //

                    // This is a special case, where we have a remoting proxy
                    // but the constructormessage hasn't been setup.
                    // so let us just bail out..
                    // this is currently used by ServicedComponent's for cross appdomain
                    // pooling:
                    //

                    /*
                     * ProxyAttribute pa = null;
                     * BCLDebug.Assert(((pa = ActivationServices.GetProxyAttribute(GetProxiedType()) is Object) || true);
                     * BCLDebug.Assert(pa != null && pa.GetType() != typeof(ProxyAttribute));
                     */
                    ctorMsg = new ConstructorCallMessage(null, null, null, GetProxiedType());
                    // Set the constructor frame info in the CCM
                    ctorMsg.SetFrame(msgData);
                    reqMsg = ctorMsg;

                    // If this was the default ctor, check that default .ctor was called.
                    if (bIsWellKnown)
                    {
                        // We did execute a Connect. Throw if the client
                        // code is also trying to use a non-default constructor at
                        // the same time.
                        if (ctorMsg.ArgCount != 0)
                        {
                            throw new RemotingException(
                                      Environment.GetResourceString(
                                          "Remoting_Activation_WellKnownCTOR"));
                        }
                    }

                    // Create a constructor return message
                    retMsg =
                        new ConstructorReturnMessage((MarshalByRefObject)GetTransparentProxy(),
                                                     null,
                                                     0,
                                                     null,
                                                     ctorMsg);
                }
                else
                {
                    // Set the constructor frame info in the CCM
                    ctorMsg.SetFrame(msgData);
                    reqMsg = ctorMsg;
                }
            }
            else
            {
                BCLDebug.Assert(false, "Unknown call type");
            }

            // Make sure that outgoing remote calls are counted.
            ChannelServices.IncrementRemoteCalls();


            // Invoke
            BCLDebug.Assert(null != reqMsg, "null != reqMsg");
            if (null == retMsg)
            {
                // NOTE: there are cases where we setup a return message
                // and we don't want the activation call to go through
                // refer to the note above for ServicedComponents and Cross Appdomain
                // pooling

                LogicalCallContext cctx          = null;
                Thread             currentThread = Thread.CurrentThread;
                // Pick up or clone the call context from the thread
                // and install it in the reqMsg as appropriate
                cctx = currentThread.GetLogicalCallContext();
                SetCallContextInMessage(reqMsg, msgFlags, cctx);

                // Add the outgoing "Header"'s to the message.
                cctx.PropagateOutgoingHeadersToMessage(reqMsg);

                retMsg = Invoke(reqMsg);

                // Get the call context returned and set it on the thread
                ReturnCallContextToThread(currentThread, retMsg, msgFlags);

                // Pull response "Header"'s out of the message
                CallContext.GetLogicalCallContext().PropagateIncomingHeadersToCallContext(retMsg);
            }

            // Propagate out parameters
            HandleReturnMessage(reqMsg, retMsg);

            // For constructor calls do some extra bookkeeping
            if (CallType.ConstructorCall == callType)
            {
                // NOTE: It is the responsiblity of the callee to propagate
                // the out parameters

                // Everything went well, we are ready to return
                // a proxy to the caller
                // Extract the return value
                MarshalByRefObject         retObj     = null;
                IConstructionReturnMessage ctorRetMsg = retMsg as IConstructionReturnMessage;
                if (null == ctorRetMsg)
                {
                    throw new RemotingException(
                              Environment.GetResourceString("Remoting_Proxy_BadReturnTypeForActivation"));
                }

                ConstructorReturnMessage crm = ctorRetMsg as ConstructorReturnMessage;
                if (null != crm)
                {
                    retObj = (MarshalByRefObject)crm.GetObject();
                    if (retObj == null)
                    {
                        throw new RemotingException(
                                  Environment.GetResourceString("Remoting_Activation_NullReturnValue"));
                    }
                }
                else
                {
                    // Fetch the objRef out of the returned message and unmarshal it
                    retObj = (MarshalByRefObject)RemotingServices.InternalUnmarshal(
                        (ObjRef)ctorRetMsg.ReturnValue,
                        GetTransparentProxy(),
                        true /*fRefine*/);

                    if (retObj == null)
                    {
                        throw new RemotingException(
                                  Environment.GetResourceString("Remoting_Activation_NullFromInternalUnmarshal"));
                    }
                }

                if (retObj != (MarshalByRefObject)GetTransparentProxy())
                {
                    throw new RemotingException(
                              Environment.GetResourceString(
                                  "Remoting_Activation_InconsistentState"));
                }
            }
        }
Ejemplo n.º 7
0
        [System.Security.SecurityCritical]  // auto-generated
        private void PrivateInvoke(ref MessageData msgData, int type)
        {
            IMessage reqMsg   = null;
            CallType callType = (CallType)type;
            IMessage retMsg   = null;
            int      msgFlags = -1;

            // Used only for Construction case
            RemotingProxy rp = null;

            // Create a message object based on the type of call
            if (CallType.MethodCall == callType)
            {
                Message msg = new Message();
                msg.InitFields(msgData);
                reqMsg   = msg;
                msgFlags = msg.GetCallType();
            }
            else if (CallType.ConstructorCall == (CallType)callType)
            {
                // We use msgFlags to handle CallContext around
                // the virtual call to Invoke()
                msgFlags = Message.Sync;

                rp = this as RemotingProxy;
                ConstructorCallMessage ctorMsg = null;
                bool bIsWellKnown = false;
                if (!IsRemotingProxy())
                {
                    // Create a new constructor call message
                    // <

                    ctorMsg = new ConstructorCallMessage(null, null, null, (RuntimeType)GetProxiedType());
                }
                else
                {
                    // Extract the constructor message set in the first step of activation.
                    ctorMsg = rp.ConstructorMessage;
                    // If the proxy is a wellknown client proxy, we don't
                    // need to run the c'tor.
                    Identity id = rp.IdentityObject;
                    if (id != null)
                    {
                        bIsWellKnown = id.IsWellKnown();
                    }
                }

                if ((null == ctorMsg) || bIsWellKnown)
                {
                    // This is also used to short-circuit the activation path
                    // when we have a well known proxy that has already been
                    // initialized (there's a race condition if we don't do this).
                    //

                    // This is a special case, where we have a remoting proxy
                    // but the constructormessage hasn't been setup.
                    // so let us just bail out..
                    // this is currently used by ServicedComponent's for cross appdomain
                    // pooling: <EMAIL>Microsoft</EMAIL>
                    //
                    ctorMsg = new ConstructorCallMessage(null, null, null, (RuntimeType)GetProxiedType());
                    // Set the constructor frame info in the CCM
                    ctorMsg.SetFrame(msgData);
                    reqMsg = ctorMsg;

                    // If this was the default ctor, check that default .ctor was called.
                    if (bIsWellKnown)
                    {
                        Contract.Assert(rp != null, "RemotingProxy expected here!");
                        // Clear any cached ctorMsg on the RemotingProxy
                        rp.ConstructorMessage = null;

                        // We did execute a Connect. Throw if the client
                        // code is also trying to use a non-default constructor at
                        // the same time.
                        if (ctorMsg.ArgCount != 0)
                        {
                            throw new RemotingException(
                                      Environment.GetResourceString(
                                          "Remoting_Activation_WellKnownCTOR"));
                        }
                    }

                    // Create a constructor return message
                    retMsg =
                        new ConstructorReturnMessage((MarshalByRefObject)GetTransparentProxy(),
                                                     null,
                                                     0,
                                                     null,
                                                     ctorMsg);
                }
                else
                {
                    // Set the constructor frame info in the CCM
                    ctorMsg.SetFrame(msgData);
                    reqMsg = ctorMsg;
                }
            }
            else
            {
                Contract.Assert(false, "Unknown call type");
            }

            // Make sure that outgoing remote calls are counted.
            ChannelServices.IncrementRemoteCalls();

            // For non-remoting proxies, EndAsync should not call Invoke()
            // because the proxy cannot support Async and the call has already
            // finished executing in BeginAsync
            if (!IsRemotingProxy() &&
                ((msgFlags & Message.EndAsync) == Message.EndAsync))
            {
                Message msg = reqMsg as Message;
                retMsg = EndInvokeHelper(msg, true);
                Contract.Assert(null != retMsg, "null != retMsg");
            }

            // Invoke
            Contract.Assert(null != reqMsg, "null != reqMsg");
            if (null == retMsg)
            {
                // NOTE: there are cases where we setup a return message
                // and we don't want the activation call to go through
                // refer to the note above for ServicedComponents and Cross Appdomain
                // pooling

                LogicalCallContext cctx          = null;
                Thread             currentThread = Thread.CurrentThread;
                // Pick up or clone the call context from the thread
                // and install it in the reqMsg as appropriate
                cctx = currentThread.GetMutableExecutionContext().LogicalCallContext;
                SetCallContextInMessage(reqMsg, msgFlags, cctx);

                // Add the outgoing "Header"'s to the message.
                cctx.PropagateOutgoingHeadersToMessage(reqMsg);
                retMsg = Invoke(reqMsg);

                // Get the call context returned and set it on the thread
                ReturnCallContextToThread(currentThread, retMsg, msgFlags, cctx);

                // Pull response "Header"'s out of the message
                Thread.CurrentThread.GetMutableExecutionContext().LogicalCallContext.PropagateIncomingHeadersToCallContext(retMsg);
            }

            if (!IsRemotingProxy() &&
                ((msgFlags & Message.BeginAsync) == Message.BeginAsync))
            {
                // This was a begin-async on a non-Remoting Proxy. For V-1 they
                // cannot support Async and end up doing a Sync call. We need
                // to fill up here to make the call look like async to
                // the caller.
                // Create the async result to return
                Message     msg = reqMsg as Message;
                AsyncResult ar  = new AsyncResult(msg);
                // Tell the async result that the call has actually completed
                // so it can hold on to the return message.
                ar.SyncProcessMessage(retMsg);
                // create a returnMessage to propagate just the asyncResult back
                // to the caller's stack.
                retMsg = new ReturnMessage(ar, null, 0, null /*cctx*/, msg);
            }

            // Propagate out parameters
            HandleReturnMessage(reqMsg, retMsg);

            // For constructor calls do some extra bookkeeping
            if (CallType.ConstructorCall == callType)
            {
                // NOTE: It is the responsiblity of the callee to propagate
                // the out parameters

                // Everything went well, we are ready to return
                // a proxy to the caller
                // Extract the return value
                MarshalByRefObject         retObj     = null;
                IConstructionReturnMessage ctorRetMsg = retMsg as IConstructionReturnMessage;
                if (null == ctorRetMsg)
                {
                    throw new RemotingException(
                              Environment.GetResourceString("Remoting_Proxy_BadReturnTypeForActivation"));
                }

                ConstructorReturnMessage crm = ctorRetMsg as ConstructorReturnMessage;
                if (null != crm)
                {
                    // If return message is of type ConstructorReturnMessage
                    // this is an in-appDomain activation. So no unmarshaling
                    // needed.

                    retObj = (MarshalByRefObject)crm.GetObject();
                    if (retObj == null)
                    {
                        throw new RemotingException(
                                  Environment.GetResourceString("Remoting_Activation_NullReturnValue"));
                    }
                }
                else
                {
                    // Fetch the objRef out of the returned message and unmarshal it
                    retObj = (MarshalByRefObject)RemotingServices.InternalUnmarshal(
                        (ObjRef)ctorRetMsg.ReturnValue,
                        GetTransparentProxy(),
                        true /*fRefine*/);

                    if (retObj == null)
                    {
                        throw new RemotingException(
                                  Environment.GetResourceString("Remoting_Activation_NullFromInternalUnmarshal"));
                    }
                }

                if (retObj != (MarshalByRefObject)GetTransparentProxy())
                {
                    throw new RemotingException(
                              Environment.GetResourceString(
                                  "Remoting_Activation_InconsistentState"));
                }

                if (IsRemotingProxy())
                {
                    // Clear any cached ctorMsg on the RemotingProxy
                    rp.ConstructorMessage = null;
                }
            }
        }
 private void PrivateInvoke(ref MessageData msgData, int type)
 {
     IMessage reqMsg = null;
     CallType type2 = (CallType) type;
     IMessage retMsg = null;
     int msgFlags = -1;
     RemotingProxy proxy = null;
     if (CallType.MethodCall == type2)
     {
         Message message3 = new Message();
         message3.InitFields(msgData);
         reqMsg = message3;
         msgFlags = message3.GetCallType();
     }
     else if (CallType.ConstructorCall == type2)
     {
         msgFlags = 0;
         proxy = this as RemotingProxy;
         ConstructorCallMessage ccm = null;
         bool flag = false;
         if (!this.IsRemotingProxy())
         {
             ccm = new ConstructorCallMessage(null, null, null, (RuntimeType) this.GetProxiedType());
         }
         else
         {
             ccm = proxy.ConstructorMessage;
             Identity identityObject = proxy.IdentityObject;
             if (identityObject != null)
             {
                 flag = identityObject.IsWellKnown();
             }
         }
         if ((ccm == null) || flag)
         {
             ccm = new ConstructorCallMessage(null, null, null, (RuntimeType) this.GetProxiedType());
             ccm.SetFrame(msgData);
             reqMsg = ccm;
             if (flag)
             {
                 proxy.ConstructorMessage = null;
                 if (ccm.ArgCount != 0)
                 {
                     throw new RemotingException(Environment.GetResourceString("Remoting_Activation_WellKnownCTOR"));
                 }
             }
             retMsg = new ConstructorReturnMessage((MarshalByRefObject) this.GetTransparentProxy(), null, 0, null, ccm);
         }
         else
         {
             ccm.SetFrame(msgData);
             reqMsg = ccm;
         }
     }
     ChannelServices.IncrementRemoteCalls();
     if (!this.IsRemotingProxy() && ((msgFlags & 2) == 2))
     {
         Message message5 = reqMsg as Message;
         retMsg = EndInvokeHelper(message5, true);
     }
     if (retMsg == null)
     {
         LogicalCallContext cctx = null;
         Thread currentThread = Thread.CurrentThread;
         cctx = currentThread.GetLogicalCallContext();
         this.SetCallContextInMessage(reqMsg, msgFlags, cctx);
         cctx.PropagateOutgoingHeadersToMessage(reqMsg);
         retMsg = this.Invoke(reqMsg);
         this.ReturnCallContextToThread(currentThread, retMsg, msgFlags, cctx);
         CallContext.GetLogicalCallContext().PropagateIncomingHeadersToCallContext(retMsg);
     }
     if (!this.IsRemotingProxy() && ((msgFlags & 1) == 1))
     {
         Message m = reqMsg as Message;
         AsyncResult ret = new AsyncResult(m);
         ret.SyncProcessMessage(retMsg);
         retMsg = new ReturnMessage(ret, null, 0, null, m);
     }
     HandleReturnMessage(reqMsg, retMsg);
     if (CallType.ConstructorCall == type2)
     {
         MarshalByRefObject obj2 = null;
         IConstructionReturnMessage message7 = retMsg as IConstructionReturnMessage;
         if (message7 == null)
         {
             throw new RemotingException(Environment.GetResourceString("Remoting_Proxy_BadReturnTypeForActivation"));
         }
         ConstructorReturnMessage message8 = message7 as ConstructorReturnMessage;
         if (message8 != null)
         {
             obj2 = (MarshalByRefObject) message8.GetObject();
             if (obj2 == null)
             {
                 throw new RemotingException(Environment.GetResourceString("Remoting_Activation_NullReturnValue"));
             }
         }
         else
         {
             obj2 = (MarshalByRefObject) RemotingServices.InternalUnmarshal((ObjRef) message7.ReturnValue, this.GetTransparentProxy(), true);
             if (obj2 == null)
             {
                 throw new RemotingException(Environment.GetResourceString("Remoting_Activation_NullFromInternalUnmarshal"));
             }
         }
         if (obj2 != ((MarshalByRefObject) this.GetTransparentProxy()))
         {
             throw new RemotingException(Environment.GetResourceString("Remoting_Activation_InconsistentState"));
         }
         if (this.IsRemotingProxy())
         {
             proxy.ConstructorMessage = null;
         }
     }
 }
Ejemplo n.º 9
0
        // Invoke for case where call is in the same context as the server object
        // (This special static method is used for AsyncDelegate-s ... this is called
        // directly from the EE)
        private static void Invoke(Object NotUsed, ref MessageData msgData)
        {
            Message m = new Message();

            m.InitFields(msgData);

            Object   thisPtr = m.GetThisPtr();
            Delegate d;

            if ((d = thisPtr as Delegate) != null)
            {
                // <

                RemotingProxy rp = (RemotingProxy)
                                   RemotingServices.GetRealProxy(d.Target);

                if (rp != null)
                {
                    rp.InternalInvoke(m, true, m.GetCallType());
                }
                else
                {
                    int         callType = m.GetCallType();
                    AsyncResult ar;
                    switch (callType)
                    {
                    case Message.BeginAsync:
                    case Message.BeginAsync | Message.OneWay:
                        // pick up call context from the thread
                        m.Properties[Message.CallContextKey] =
                            Thread.CurrentThread.GetMutableExecutionContext().LogicalCallContext.Clone();
                        ar = new AsyncResult(m);
                        AgileAsyncWorkerItem workItem =
                            new AgileAsyncWorkerItem(
                                m,
                                ((callType & Message.OneWay) != 0) ?
                                null : ar, d.Target);

                        ThreadPool.QueueUserWorkItem(
                            new WaitCallback(
                                AgileAsyncWorkerItem.ThreadPoolCallBack),
                            workItem);

                        if ((callType & Message.OneWay) != 0)
                        {
                            ar.SyncProcessMessage(null);
                        }
                        m.PropagateOutParameters(null, ar);
                        break;

                    case (Message.EndAsync | Message.OneWay):
                        return;

                    case Message.EndAsync:
                        // This will also merge back the call context
                        // onto the thread that called EndAsync
                        RealProxy.EndInvokeHelper(m, false);
                        break;

                    default:
                        BCLDebug.Assert(
                            false,
                            "Should never be here. Sync delegate code for agile object ended up in remoting");
                        break;
                    }
                }
            }
            else
            {
                // Static invoke called with incorrect this pointer ...
                throw new RemotingException(
                          Environment.GetResourceString(
                              "Remoting_Default"));
            }
        }
Ejemplo n.º 10
0
        // NOTE: This method is called multiple times as we reuse the
        // message object. Make sure that you reset any fields that you
        // add to the message object to the default values. This will
        // ensure that the reused message object starts with the correct
        // values.
        internal void InitFields(MessageData msgData)
        {
            _frame = msgData.pFrame;
            _delegateMD = msgData.pDelegateMD;
            _methodDesc = msgData.pMethodDesc;
            _last = -1;
            _flags = msgData.iFlags;
            _initDone = true;
            _metaSigHolder = msgData.pSig;

            _MethodName = null;
            _MethodSignature = null;
            _MethodBase = null;
            _URI = null;
            _Fault = null;
            _ID = null;
            _srvID = null;
            _callContext = null;

            if (_properties != null)
            {
                // A dictionary object already exists. This case occurs
                // when we reuse the message object. Just remove all the
                // entries from the dictionary object and reuse it.
                ((IDictionary)_properties).Clear();
            }
            
        }
Ejemplo n.º 11
0
 internal void SetFrame(MessageData msgData)
 {
     BCLDebug.Assert(_message == null, "Can't set frame twice on ConstructorCallMessage");
     _message = new Message();
     _message.InitFields(msgData);
 }
Ejemplo n.º 12
0
        private void PrivateInvoke(ref MessageData msgData, int type)
        {
            IMessage      message       = null;
            IMessage      message2      = null;
            int           num           = -1;
            RemotingProxy remotingProxy = null;

            if (1 == type)
            {
                Message message3 = new Message();
                message3.InitFields(msgData);
                message = message3;
                num     = message3.GetCallType();
            }
            else if (2 == type)
            {
                num           = 0;
                remotingProxy = (this as RemotingProxy);
                bool flag = false;
                ConstructorCallMessage constructorCallMessage;
                if (!this.IsRemotingProxy())
                {
                    constructorCallMessage = new ConstructorCallMessage(null, null, null, (RuntimeType)this.GetProxiedType());
                }
                else
                {
                    constructorCallMessage = remotingProxy.ConstructorMessage;
                    Identity identityObject = remotingProxy.IdentityObject;
                    if (identityObject != null)
                    {
                        flag = identityObject.IsWellKnown();
                    }
                }
                if (constructorCallMessage == null || flag)
                {
                    constructorCallMessage = new ConstructorCallMessage(null, null, null, (RuntimeType)this.GetProxiedType());
                    constructorCallMessage.SetFrame(msgData);
                    message = constructorCallMessage;
                    if (flag)
                    {
                        remotingProxy.ConstructorMessage = null;
                        if (constructorCallMessage.ArgCount != 0)
                        {
                            throw new RemotingException(Environment.GetResourceString("Remoting_Activation_WellKnownCTOR"));
                        }
                    }
                    message2 = new ConstructorReturnMessage((MarshalByRefObject)this.GetTransparentProxy(), null, 0, null, constructorCallMessage);
                }
                else
                {
                    constructorCallMessage.SetFrame(msgData);
                    message = constructorCallMessage;
                }
            }
            ChannelServices.IncrementRemoteCalls();
            if (!this.IsRemotingProxy() && (num & 2) == 2)
            {
                Message reqMsg = message as Message;
                message2 = RealProxy.EndInvokeHelper(reqMsg, true);
            }
            if (message2 == null)
            {
                Thread             currentThread      = Thread.CurrentThread;
                LogicalCallContext logicalCallContext = currentThread.GetMutableExecutionContext().LogicalCallContext;
                this.SetCallContextInMessage(message, num, logicalCallContext);
                logicalCallContext.PropagateOutgoingHeadersToMessage(message);
                message2 = this.Invoke(message);
                this.ReturnCallContextToThread(currentThread, message2, num, logicalCallContext);
                Thread.CurrentThread.GetMutableExecutionContext().LogicalCallContext.PropagateIncomingHeadersToCallContext(message2);
            }
            if (!this.IsRemotingProxy() && (num & 1) == 1)
            {
                Message     message4    = message as Message;
                AsyncResult asyncResult = new AsyncResult(message4);
                asyncResult.SyncProcessMessage(message2);
                message2 = new ReturnMessage(asyncResult, null, 0, null, message4);
            }
            RealProxy.HandleReturnMessage(message, message2);
            if (2 == type)
            {
                IConstructionReturnMessage constructionReturnMessage = message2 as IConstructionReturnMessage;
                if (constructionReturnMessage == null)
                {
                    throw new RemotingException(Environment.GetResourceString("Remoting_Proxy_BadReturnTypeForActivation"));
                }
                ConstructorReturnMessage constructorReturnMessage = constructionReturnMessage as ConstructorReturnMessage;
                MarshalByRefObject       marshalByRefObject;
                if (constructorReturnMessage != null)
                {
                    marshalByRefObject = (MarshalByRefObject)constructorReturnMessage.GetObject();
                    if (marshalByRefObject == null)
                    {
                        throw new RemotingException(Environment.GetResourceString("Remoting_Activation_NullReturnValue"));
                    }
                }
                else
                {
                    marshalByRefObject = (MarshalByRefObject)RemotingServices.InternalUnmarshal((ObjRef)constructionReturnMessage.ReturnValue, this.GetTransparentProxy(), true);
                    if (marshalByRefObject == null)
                    {
                        throw new RemotingException(Environment.GetResourceString("Remoting_Activation_NullFromInternalUnmarshal"));
                    }
                }
                if (marshalByRefObject != (MarshalByRefObject)this.GetTransparentProxy())
                {
                    throw new RemotingException(Environment.GetResourceString("Remoting_Activation_InconsistentState"));
                }
                if (this.IsRemotingProxy())
                {
                    remotingProxy.ConstructorMessage = null;
                }
            }
        }
 internal void InitFields(MessageData msgData)
 {
     this._frame = msgData.pFrame;
     this._delegateMD = msgData.pDelegateMD;
     this._methodDesc = msgData.pMethodDesc;
     this._flags = msgData.iFlags;
     this._initDone = true;
     this._metaSigHolder = msgData.pSig;
     this._governingType = msgData.thGoverningType;
     this._MethodName = null;
     this._MethodSignature = null;
     this._MethodBase = null;
     this._URI = null;
     this._Fault = null;
     this._ID = null;
     this._srvID = null;
     this._callContext = null;
     if (this._properties != null)
     {
         ((IDictionary) this._properties).Clear();
     }
 }
Ejemplo n.º 14
0
        // Private method invoked by the transparent proxy
        private void PrivateInvoke(ref MessageData msgData, int type)
        {
            IMessage reqMsg = null;
            CallType callType = (CallType)type;
            IMessage retMsg = null;
            int msgFlags = -1;
            
            // Create a message object based on the type of call
            if(CallType.MethodCall == callType)
            {
                Message msg = new Message();
                msg.InitFields(msgData);
                reqMsg = msg;
                msgFlags = msg.GetCallType();
            }
            else if (CallType.ConstructorCall == (CallType)callType)
            {
                // We use msgFlags to handle CallContext around 
                // the virtual call to Invoke()
                msgFlags = Message.Sync;
                
                ConstructorCallMessage ctorMsg = null;
                RemotingProxy rp = this as RemotingProxy;
                if(null == rp)
                {
                    // Create a new constructor call message
                    ctorMsg = new ConstructorCallMessage(null, null, null, GetProxiedType());                    
                }                                
                else
                {
                    // Extract the constructor message set in the first step of activation.
                    ctorMsg = rp.ConstructorMessage;                                         
                }

                // If the proxy is a wellknown client proxy, we don't need to run the c'tor.
                bool bIsWellKnown = false;
                if (rp != null)
                {
                    Identity id = rp.IdentityObject;
                    if (id != null)
                        bIsWellKnown = id.IsWellKnown();
                }
                
                if ((null == ctorMsg) || bIsWellKnown)
                {
                    // This is also used to short-circuit the activation path
                    // when we have a well known proxy that has already been
                    // initialized (there's a race condition if we don't do this).
                    //      
                
                    // This is a special case, where we have a remoting proxy
                    // but the constructormessage hasn't been setup.
                    // so let us just bail out.. 
                    // this is currently used by ServicedComponent's for cross appdomain
                    // pooling:                     
                    //

                    /*
                    ProxyAttribute pa = null;                            
                    BCLDebug.Assert(((pa = ActivationServices.GetProxyAttribute(GetProxiedType()) is Object) || true);
                    BCLDebug.Assert(pa != null && pa.GetType() != typeof(ProxyAttribute));
                    */
                    ctorMsg = new ConstructorCallMessage(null, null, null, GetProxiedType());                    
                    // Set the constructor frame info in the CCM
                    ctorMsg.SetFrame(msgData); 
                    reqMsg = ctorMsg;

                    // If this was the default ctor, check that default .ctor was called.
                    if (bIsWellKnown)
                    {
                        // We did execute a Connect. Throw if the client
                        // code is also trying to use a non-default constructor at
                        // the same time.
                        if (ctorMsg.ArgCount != 0)
                        {
                            throw new RemotingException(
                                Environment.GetResourceString(
                                    "Remoting_Activation_WellKnownCTOR"));
                        }
                    }
                    
                    // Create a constructor return message
                    retMsg = 
                        new ConstructorReturnMessage((MarshalByRefObject)GetTransparentProxy(), 
                            null, 
                            0, 
                            null, 
                            ctorMsg);
                }
                else
                {                
                    // Set the constructor frame info in the CCM
                    ctorMsg.SetFrame(msgData);
                    reqMsg = ctorMsg;
                }
            }
            else
            {
                BCLDebug.Assert(false, "Unknown call type");
            }

            // Make sure that outgoing remote calls are counted.
            ChannelServices.IncrementRemoteCalls();


            // Invoke
            BCLDebug.Assert(null != reqMsg, "null != reqMsg");
            if (null == retMsg)
            {
                // NOTE: there are cases where we setup a return message 
                // and we don't want the activation call to go through
                // refer to the note above for ServicedComponents and Cross Appdomain
                // pooling

                LogicalCallContext cctx = null;
                Thread currentThread = Thread.CurrentThread;
                // Pick up or clone the call context from the thread 
                // and install it in the reqMsg as appropriate
                cctx = currentThread.GetLogicalCallContext();   
                SetCallContextInMessage(reqMsg, msgFlags, cctx);
                
                // Add the outgoing "Header"'s to the message.
                cctx.PropagateOutgoingHeadersToMessage(reqMsg);
                
                retMsg = Invoke(reqMsg);

                // Get the call context returned and set it on the thread
                ReturnCallContextToThread(currentThread, retMsg, msgFlags);

                // Pull response "Header"'s out of the message
                CallContext.GetLogicalCallContext().PropagateIncomingHeadersToCallContext(retMsg);
            }

            // Propagate out parameters
            HandleReturnMessage(reqMsg, retMsg);

            // For constructor calls do some extra bookkeeping
            if(CallType.ConstructorCall == callType)
            {
                // NOTE: It is the responsiblity of the callee to propagate
                // the out parameters

                // Everything went well, we are ready to return
                // a proxy to the caller
                // Extract the return value
                MarshalByRefObject retObj = null;
                IConstructionReturnMessage ctorRetMsg = retMsg as IConstructionReturnMessage;
                if(null == ctorRetMsg)
                {
                    throw new RemotingException(
                        Environment.GetResourceString("Remoting_Proxy_BadReturnTypeForActivation"));
                }

                ConstructorReturnMessage crm = ctorRetMsg as ConstructorReturnMessage;
                if (null != crm)
                {
                    retObj = (MarshalByRefObject)crm.GetObject();
                    if (retObj == null)
                    {
                        throw new RemotingException(
                            Environment.GetResourceString("Remoting_Activation_NullReturnValue"));
                    }
                }
                else
                {
                    // Fetch the objRef out of the returned message and unmarshal it
                    retObj = (MarshalByRefObject)RemotingServices.InternalUnmarshal(
                                (ObjRef)ctorRetMsg.ReturnValue,
                                GetTransparentProxy(),
                                true /*fRefine*/);

                    if (retObj == null)
                    {
                        throw new RemotingException(
                            Environment.GetResourceString("Remoting_Activation_NullFromInternalUnmarshal"));
                    }
                }

                if (retObj != (MarshalByRefObject)GetTransparentProxy())
                {
                    throw new RemotingException(
                        Environment.GetResourceString(
                            "Remoting_Activation_InconsistentState"));
                }
            }
        }