コード例 #1
0
        /// <summary>
        /// A call has been made from us trough the proxy object.
        /// </summary>
        internal object ProcessCall(SuperPoolProxyCall proxyCall)
        {
            SuperPoolInvocation superPool = _superPool;

            if (superPool == null)
            {
#if Matrix_Diagnostics
                SystemMonitor.OperationError("Failed to find super pool (possible dispose).");
#endif
                return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
            }

            IMessageBus messageBus = superPool.MessageBus;
            if (messageBus == null)
            {
#if Matrix_Diagnostics
                SystemMonitor.OperationError("Failed to find message bus (possible dispose).");
#endif
                return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
            }

            if (proxyCall.Processed)
            {
#if Matrix_Diagnostics
                SystemMonitor.OperationError("Proxy call already processed.");
#endif
                return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
            }

            if (proxyCall.Mode == SuperPoolProxyCall.ModeEnum.DirectCall)
            {
                MessageBusClient clientInstance = messageBus.GetLocalClientInstance(proxyCall.ReceiversIds[0]);
                if (clientInstance == null || clientInstance is SuperPoolClient == false)
                {
#if Matrix_Diagnostics
                    SystemMonitor.OperationError("Direct call failed, due to client not found or corresponding.");
#endif
                    return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
                }
                else
                {// Perform the direct call.
                    // This is still fast, since caching is used.
                    FastInvokeHelper.FastInvokeHandlerDelegate delegateInstance = FastInvokeHelper.GetMethodInvoker(proxyCall.MethodInfo.ProxyMethodInfo, true, true);
                    return(delegateInstance.Invoke(((SuperPoolClient)clientInstance).Source, proxyCall.Parameters));
                }
            }
            else if (proxyCall.Mode == SuperPoolProxyCall.ModeEnum.CallFirst)
            {
                ClientId firstId = this.Resolve(proxyCall.MethodInfo.ProxyMethodInfo.DeclaringType);
                if (firstId == null)
                {
#if Matrix_Diagnostics
                    SystemMonitor.OperationError("Call first failed, no client found for [" + proxyCall.MethodInfo.ProxyMethodInfo.DeclaringType.Name + "] interface.");
#endif

                    return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
                }

                proxyCall.ReceiversIds = new List <ClientId>()
                {
                    firstId
                };
            }

            SuperPoolCall call = new SuperPoolCall(superPool.GetUniqueCallId());

            call.Parameters      = proxyCall.Parameters;
            call.MethodInfoLocal = proxyCall.MethodInfo.ProxyMethodInfo;

            call.State = SuperPoolCall.StateEnum.Requesting;
            //SuperPoolProxyCall.ModeEnum.Default ? SuperPoolCall.StateEnum.Requesting : SuperPoolCall.StateEnum.RequestingDirectCall;

            call.RequestResponse = proxyCall.IsSynchronous || proxyCall.IsAsyncResultExpecting;

            proxyCall.Processed = true;

            foreach (ParameterInfo info in call.MethodInfoLocal.GetParameters())
            {// Filter out ref, out and optional parameters.
                if (/*info.IsOptional ||*/ info.IsOut || info.IsRetval || info.IsOut || info.ParameterType.IsByRef)
                {
                    throw new NotImplementedException("Super pool calls do not support optional, out and ref parameters");
                }
            }

            // Prepare the synchronous structure (also handles waiting for the async results).
            SyncCallInfo syncCall = null;
            if (proxyCall.IsSynchronous || proxyCall.IsAsyncResultExpecting)
            {
                syncCall = new SyncCallInfo(call.Id)
                {
                    AsyncResultState    = proxyCall.AsyncResultState,
                    AsyncResultDelegate = proxyCall.AsyncResultDelegate,
                    AsyncResultTimeout  = proxyCall.AsyncResultTimeout,
                };

                lock (_syncCalls)
                {
                    _syncCalls[call.Id] = syncCall;
                }
            }

            List <ClientId> receiversIndeces = null;
            if (proxyCall.ReceiversIds == null)
            {// No receiver indicates send to all, so that is what we do.
                if (proxyCall.MethodInfo == null || proxyCall.MethodInfo.ProxyOwnerType == null)
                {
#if Matrix_Diagnostics
                    SystemMonitor.Error("Failed to establish the required proxy call parameters.");
#endif
                    return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
                }

                Type interfaceType = proxyCall.MethodInfo.GetBaseInterfaceType();
                if (interfaceType == null)
                {
#if Matrix_Diagnostics
                    SystemMonitor.Error("Failed to establish the base interface type.");
#endif
                    return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
                }

                receiversIndeces = new List <ClientId>();
                foreach (ComponentId receiverId in superPool.GetInterfaceImplementors(interfaceType))
                {
                    if (receiverId != proxyCall.Sender.Id)
                    {
                        receiversIndeces.Add((ClientId)receiverId);
                    }

                    if (proxyCall.IsSynchronous && receiversIndeces.Count > 0)
                    {// Synchronous inadressed calls only execute agains a max of one provider.
                        break;
                    }
                }
            }
            else
            {
                receiversIndeces = proxyCall.ReceiversIds;
            }

            if (receiversIndeces.Count > 0)
            {
                if (syncCall != null && proxyCall.IsSynchronous)
                {// Prepare the event.
                    syncCall.Event = new ManualResetEvent(false);
                }

                Outcomes sendResult = messageBus.Send(this.Id, receiversIndeces, new Envelope(call)
                {
                    DuplicationMode = EnvelopeDuplicationMode
                }, proxyCall.RequestConfirmTimeout, false);

                if (proxyCall.Outcome != null)
                {
                    proxyCall.Outcome.Result = sendResult;
                }

                if (sendResult != Outcomes.Success)
                {
#if Matrix_Diagnostics
                    SystemMonitor.OperationError(string.Format("Failed to send proxy call [{0}].", proxyCall.ToString()));
#endif
                    return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
                }

                if (syncCall != null && proxyCall.IsSynchronous)
                {     // Wait for response.
                    if (syncCall.Event.WaitOne(proxyCall.Timeout.Value) == false)
                    { // Time out.
#if Matrix_Diagnostics
                        SystemMonitor.OperationWarning(string.Format("Proxy call timed out [{0}].", proxyCall.ToString()));
#endif
                        return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
                    }
                    else
                    {// Waited and awaken.
                        return(syncCall.Response);
                    }
                }
            }
            else
            {
#if Matrix_Diagnostics
                SystemMonitor.OperationWarning(string.Format("Failed to find invocation recipients for call [{0}].", proxyCall.ToString()));
#endif
            }

            return(ProxyTypeManager.GetTypeDefaultValue(proxyCall.ReturnType));
        }