private async Task <InvokeRoutineResult> RunRoutineAsync( ITransitionCarrier transitionCarrier, TransitionDescriptor transitionDescriptor, CancellationToken ct) { var invocationResult = new InvokeRoutineResult(); using (_transitionScope.Enter(transitionDescriptor)) { var transitionMonitor = _transitionScope.CurrentMonitor; var serviceId = await transitionCarrier.GetServiceIdAsync(ct); var methodId = await transitionCarrier.GetRoutineDescriptorAsync(ct); var serviceReference = _serviceResolver.Resolve(serviceId); var methodReference = _methodResolver.Resolve(serviceReference.Definition, methodId); object serviceInstance = serviceReference.GetInstance(); //var serviceStateContainer = _serviceStateValueContainerProvider.CreateContainer(serviceInstance); //var isStatefullService = serviceStateContainer.GetCount() > 0; //if (isStatefullService) // await transitionCarrier.ReadServiceStateAsync(serviceStateContainer, ct); Type taskResultType = methodReference.Definition.MethodInfo.ReturnType == typeof(void) ? TaskAccessor.VoidTaskResultType : TaskAccessor.GetTaskResultType(methodReference.Definition.MethodInfo.ReturnType); Task completionTask; IValueContainer asmValueContainer = null; if (TryCreateAsyncStateMachine(methodReference.Definition.MethodInfo, methodId.IntentId, out var asmInstance, out var asmMetadata)) { var isContinuation = transitionDescriptor.Type == TransitionType.ContinueRoutine; asmValueContainer = await LoadRoutineStateAsync(transitionCarrier, asmInstance, asmMetadata, isContinuation, ct); asmMetadata.Owner.FieldInfo?.SetValue(asmInstance, serviceInstance); transitionMonitor.OnRoutineStart( serviceReference, methodReference, methodId, serviceInstance, asmInstance, (transitionCarrier as TransitionCarrier)?.Caller); try { asmInstance.MoveNext(); completionTask = GetCompletionTask(asmInstance, asmMetadata); } catch (Exception ex) { // The MoveNext() must not throw, but instead complete the task with an error. // try-catch is added just in case for a non-compiler-generated state machine. completionTask = TaskAccessor.FromException(taskResultType, ex); } }
private async Task RunRoutineAsync( ITransitionCarrier transitionCarrier, TransitionDescriptor transitionDescriptor, CancellationToken ct) { using (_transitionScope.Enter(transitionDescriptor)) { var transitionMonitor = _transitionScope.CurrentMonitor; var serviceId = await transitionCarrier.GetServiceIdAsync(ct); var routineDescriptor = await transitionCarrier.GetRoutineDescriptorAsync(ct); object serviceInstance; IServiceDefinition serviceDefinition; #warning IntrinsicRoutines must be registered in the service registry, but it needs the engine IoC to resolve. if (serviceId.ProxyName == nameof(IntrinsicRoutines)) { serviceInstance = _intrinsicRoutines; serviceDefinition = IntrinsicCommunicationModel.IntrinsicRoutinesServiceDefinition; } else { serviceInstance = _serviceProxyBuilder.Build(serviceId); serviceDefinition = ((ServiceProxyContext)((IProxy)serviceInstance).Context).Definition; } var routineMethod = _routineMethodResolver.Resolve(serviceDefinition, routineDescriptor.MethodId); //var serviceStateContainer = _serviceStateValueContainerProvider.CreateContainer(serviceInstance); //var isStatefullService = serviceStateContainer.GetCount() > 0; //if (isStatefullService) // await transitionCarrier.ReadServiceStateAsync(serviceStateContainer, ct); Task completionTask; IValueContainer asmValueContainer = null; if (TryCreateAsyncStateMachine(routineMethod, out var asmInstance, out var asmMetadata)) { var isContinuation = transitionDescriptor.Type == TransitionType.ContinueRoutine; asmValueContainer = await LoadRoutineStateAsync(transitionCarrier, asmInstance, asmMetadata, isContinuation, ct); asmMetadata.Owner.FieldInfo?.SetValue(asmInstance, serviceInstance); transitionMonitor.OnRoutineStart( serviceId, routineDescriptor, serviceInstance, routineMethod, asmInstance); try { #warning possibly need to create a proxy? on a sealed ASM class? How to capture Task.Delay if it's not immediate after first MoveNext? asmInstance.MoveNext(); completionTask = GetCompletionTask(asmInstance, asmMetadata); } catch (Exception ex) { // The MoveNext() must not throw, but instead complete the task with an error. // try-catch is added just in case for a non-compiler-generated state machine. var taskResultType = TaskAccessor.GetTaskResultType(routineMethod.ReturnType); completionTask = TaskAccessor.FromException(taskResultType, ex); } }
private async Task RunRoutineAsync( ITransitionCarrier transitionCarrier, TransitionDescriptor transitionDescriptor, CancellationToken ct) { using (_transitionScope.Enter(transitionDescriptor)) { var transitionMonitor = _transitionScope.CurrentMonitor; var serviceId = await transitionCarrier.GetServiceIdAsync(ct); var routineDescriptor = await transitionCarrier.GetRoutineDescriptorAsync(ct); var serviceInstance = #warning IntrinsicRoutines must be registered in the service registry, but it needs the engine IoC to resolve. serviceId.ProxyName == nameof(IntrinsicRoutines) ? _intrinsicRoutines : _serviceProxyBuilder.Build(serviceId); #warning check if the serviceInstance proxy is an actual non-abstract class with implementation // Need exact underlying type of the service implementation type to call // the routine method directly without using the virtual method table. var serviceType = (serviceInstance as IProxy)?.ObjectType ?? serviceInstance.GetType(); var routineMethod = _routineMethodResolver.Resolve(serviceType, routineDescriptor.MethodId); var serviceStateContainer = _serviceStateValueContainerProvider.CreateContainer(serviceInstance); var isStatefullService = serviceStateContainer.GetCount() > 0; if (isStatefullService) { await transitionCarrier.ReadServiceStateAsync(serviceStateContainer, ct); } Task completionTask; IValueContainer asmValueContainer = null; if (TryCreateAsyncStateMachine(routineMethod, out var asmInstance, out var asmMetadata, out completionTask)) { var isContinuation = transitionDescriptor.Type == TransitionType.ContinueRoutine; asmValueContainer = await LoadRoutineStateAsync(transitionCarrier, asmInstance, asmMetadata, isContinuation, ct); asmMetadata.Owner.FieldInfo?.SetValue(asmInstance, serviceInstance); transitionMonitor.OnRoutineStart( serviceId, routineDescriptor, serviceInstance, routineMethod, asmInstance); try { #warning possibly need to create a proxy? on a sealed ASM class? How to capture Task.Delay if it's not immediate after first MoveNext? asmInstance.MoveNext(); } catch (Exception ex) { // The MoveNext() must not throw, but instead complete the task with an error. // try-catch is added just in case for a non-compiler-generated state machine. var taskResultType = TaskAccessor.GetTaskResultType(routineMethod.ReturnType); completionTask = TaskAccessor.FromException(taskResultType, ex); } }