internal InstanceLockGuard(InstanceLock theLock) { this.m_lock = theLock; EnforceGuard(theLock); try { } finally { bool flag = false; Monitor.Enter(this.m_lock); try { InstanceLock.HeldLocks.Add(this.m_lock); flag = true; } finally { if (!flag) { Monitor.Exit(this.m_lock); } } } }
internal static void Exit(InstanceLock il, WorkflowExecutor w) { List<SchedulerLockGuardInfo> eventList = new List<SchedulerLockGuardInfo>(w.EventsToFireList); w.EventsToFireList.Clear(); il.Exit(); FireEvents(eventList, w); }
internal static void EnforceGuard(InstanceLock theLock) { foreach (InstanceLock heldLock in HeldLocks) { switch (theLock.Operator) { case LockPriorityOperator.GreaterThan: if (heldLock.InstanceId == theLock.InstanceId && heldLock.Priority <= theLock.Priority) { throw new InvalidOperationException(ExecutionStringManager.InstanceOperationNotValidinWorkflowThread); } break; case LockPriorityOperator.GreaterThanOrReentrant: // the checks here assume that locks have unique priorities if (heldLock.InstanceId == theLock.InstanceId && heldLock.Priority < theLock.Priority) { throw new InvalidOperationException(ExecutionStringManager.InstanceOperationNotValidinWorkflowThread); } break; default: System.Diagnostics.Debug.Assert(false, "Unrecognized lock operator"); break; } } }
internal InstanceLockGuard(InstanceLock theLock) { this.m_lock = theLock; // Note: the following operations are logically atomic, but since the // list we are using is thread local there is no need to take a lock. EnforceGuard(theLock); try { } finally { bool success = false; #pragma warning disable 0618 //@ Monitor.Enter(this.m_lock); #pragma warning restore 0618 try { HeldLocks.Add(this.m_lock); success = true; } finally { if (!success) { Monitor.Exit(this.m_lock); } } } }
internal static void Exit(InstanceLock il, WorkflowExecutor w) { List <SchedulerLockGuardInfo> eventList = new List <SchedulerLockGuardInfo>(w.EventsToFireList); w.EventsToFireList.Clear(); il.Exit(); FireEvents(eventList, w); }
internal static void EnforceGuard(InstanceLock theLock) { foreach (InstanceLock @lock in InstanceLock.HeldLocks) { switch (theLock.Operator) { case LockPriorityOperator.GreaterThan: if ((@lock.InstanceId == theLock.InstanceId) && (@lock.Priority <= theLock.Priority)) { throw new InvalidOperationException(ExecutionStringManager.InstanceOperationNotValidinWorkflowThread); } break; case LockPriorityOperator.GreaterThanOrReentrant: if ((@lock.InstanceId == theLock.InstanceId) && (@lock.Priority < theLock.Priority)) { throw new InvalidOperationException(ExecutionStringManager.InstanceOperationNotValidinWorkflowThread); } break; } } }
internal SchedulerLockGuard(InstanceLock il, WorkflowExecutor w) { lg = il.Enter(); workflowExec = w; }
// Used to recreate the root schedule executor from its persisted state private void ReloadHelper(Activity rootActivity) { // assign activity state this.rootActivity = rootActivity; this.InstanceId = (Guid)rootActivity.GetValue(WorkflowInstanceIdProperty); // set workflow executor this.rootActivity.SetValue(WorkflowExecutor.WorkflowExecutorProperty, this); this._schedulerLock = LockFactory.CreateWorkflowSchedulerLock(this.InstanceId); this.schedulingContext = new Scheduler(this, false); this.qService = new WorkflowQueuingService(this); WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 0, "Workflow Runtime: WorkflowExecutor: Loading instance {0}", this.InstanceIdString); DiagnosticStackTrace("load request"); using (new ServiceEnvironment(this.rootActivity)) { // check if this instance can be loaded switch (this.WorkflowStatus) { case WorkflowStatus.Completed: case WorkflowStatus.Terminated: WorkflowTrace.Runtime.TraceEvent(TraceEventType.Error, 0, "Workflow Runtime: WorkflowExecutor: attempt to load a completed/terminated instance: {0}", this.InstanceIdString); throw new InvalidOperationException( ExecutionStringManager.InvalidAttemptToLoad); default: break; } // new nonSerialized members _resourceManager = new VolatileResourceManager(); _runtime = _workflowInstance.WorkflowRuntime; // register all dynamic activities for loading Queue<Activity> dynamicActivitiesQueue = new Queue<Activity>(); dynamicActivitiesQueue.Enqueue(this.rootActivity); while (dynamicActivitiesQueue.Count > 0) { Activity dynamicActivity = dynamicActivitiesQueue.Dequeue(); ((IDependencyObjectAccessor)dynamicActivity).InitializeInstanceForRuntime(this); this.RegisterDynamicActivity(dynamicActivity, true); IList<Activity> nestedDynamicActivities = (IList<Activity>)dynamicActivity.GetValue(Activity.ActiveExecutionContextsProperty); if (nestedDynamicActivities != null) { foreach (Activity nestedDynamicActivity in nestedDynamicActivities) dynamicActivitiesQueue.Enqueue(nestedDynamicActivity); } } } this.isInstanceIdle = (bool)this.rootActivity.GetValue(IsIdleProperty); RefreshWorkflowDefinition(); }
// Used when replacing a workflow executor. Basically we move // the locks from the previous executor so we guarantee that // everything stays locks as it is supposed to be. internal void Initialize(Activity rootActivity, WorkflowRuntime runtime, WorkflowExecutor previousWorkflowExecutor) { _workflowInstance = previousWorkflowExecutor.WorkflowInstance; ReloadHelper(rootActivity); // mark instance as valid now IsInstanceValid = true; _runtime = runtime; this._runtime.WorkflowExecutorCreated(this, true); TimerQueue.Executor = this; TimerQueue.ResumeDelivery(); _executorLock = previousWorkflowExecutor._executorLock; _msgDeliveryLock = previousWorkflowExecutor._msgDeliveryLock; _schedulerLock = previousWorkflowExecutor._schedulerLock; ScheduleWork.Executor = this; }
internal static void EnforceGuard(InstanceLock theLock) { foreach (InstanceLock heldLock in HeldLocks) { switch (theLock.Operator) { case LockPriorityOperator.GreaterThan: if (heldLock.InstanceId == theLock.InstanceId && heldLock.Priority <= theLock.Priority) throw new InvalidOperationException(ExecutionStringManager.InstanceOperationNotValidinWorkflowThread); break; case LockPriorityOperator.GreaterThanOrReentrant: // the checks here assume that locks have unique priorities if (heldLock.InstanceId == theLock.InstanceId && heldLock.Priority < theLock.Priority) throw new InvalidOperationException(ExecutionStringManager.InstanceOperationNotValidinWorkflowThread); break; default: System.Diagnostics.Debug.Assert(false, "Unrecognized lock operator"); break; } } }
private void ReloadHelper(Activity rootActivity) { this.rootActivity = rootActivity; this.InstanceId = (Guid) rootActivity.GetValue(WorkflowInstanceIdProperty); this.rootActivity.SetValue(WorkflowExecutorProperty, this); this._schedulerLock = LockFactory.CreateWorkflowSchedulerLock(this.InstanceId); this.schedulingContext = new System.Workflow.Runtime.Scheduler(this, false); this.qService = new WorkflowQueuingService(this); WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 0, "Workflow Runtime: WorkflowExecutor: Loading instance {0}", new object[] { this.InstanceIdString }); using (new ServiceEnvironment(this.rootActivity)) { switch (this.WorkflowStatus) { case System.Workflow.Runtime.WorkflowStatus.Completed: case System.Workflow.Runtime.WorkflowStatus.Terminated: WorkflowTrace.Runtime.TraceEvent(TraceEventType.Error, 0, "Workflow Runtime: WorkflowExecutor: attempt to load a completed/terminated instance: {0}", new object[] { this.InstanceIdString }); throw new InvalidOperationException(ExecutionStringManager.InvalidAttemptToLoad); } this._resourceManager = new VolatileResourceManager(); this._runtime = this._workflowInstance.WorkflowRuntime; Queue<Activity> queue = new Queue<Activity>(); queue.Enqueue(this.rootActivity); while (queue.Count > 0) { Activity dynamicActivity = queue.Dequeue(); ((IDependencyObjectAccessor) dynamicActivity).InitializeInstanceForRuntime(this); this.RegisterDynamicActivity(dynamicActivity, true); IList<Activity> list = (IList<Activity>) dynamicActivity.GetValue(Activity.ActiveExecutionContextsProperty); if (list != null) { foreach (Activity activity2 in list) { queue.Enqueue(activity2); } } } } this.isInstanceIdle = (bool) this.rootActivity.GetValue(IsIdleProperty); this.RefreshWorkflowDefinition(); }
internal void Initialize(Activity rootActivity, WorkflowExecutor invokerExec, string invokeActivityID, Guid instanceId, IDictionary<string, object> namedArguments, System.Workflow.Runtime.WorkflowInstance workflowInstance) { this.rootActivity = rootActivity; this.InstanceId = instanceId; this.rootActivity.SetValue(ContextIdProperty, 0); this.rootActivity.SetValue(WorkflowInstanceIdProperty, instanceId); this.WorkflowStatus = System.Workflow.Runtime.WorkflowStatus.Created; this.rootActivity.SetValue(Activity.ActivityExecutionContextInfoProperty, new ActivityExecutionContextInfo(this.rootActivity.QualifiedName, this.GetNewContextId(), instanceId, -1)); this.rootActivity.SetValue(Activity.ActivityContextGuidProperty, instanceId); this.rootActivity.SetValue(IsIdleProperty, true); this.isInstanceIdle = true; this.rootActivity.SetValue(WorkflowExecutorProperty, this); this.RefreshWorkflowDefinition(); Activity workflowDefinition = this.WorkflowDefinition; if (workflowDefinition == null) { throw new InvalidOperationException("workflowDefinition"); } ((IDependencyObjectAccessor) this.rootActivity).InitializeActivatingInstanceForRuntime(null, this); this.rootActivity.FixUpMetaProperties(workflowDefinition); this._runtime = workflowInstance.WorkflowRuntime; if (invokerExec != null) { List<string> list = new List<string>(); System.Workflow.Runtime.TrackingCallingState state = (System.Workflow.Runtime.TrackingCallingState) invokerExec.rootActivity.GetValue(TrackingCallingStateProperty); if ((state != null) && (state.CallerActivityPathProxy != null)) { foreach (string str in state.CallerActivityPathProxy) { list.Add(str); } } list.Add(invokeActivityID); System.Workflow.Runtime.TrackingCallingState state2 = new System.Workflow.Runtime.TrackingCallingState { CallerActivityPathProxy = list, CallerWorkflowInstanceId = invokerExec.InstanceId, CallerContextGuid = ((ActivityExecutionContextInfo) ContextActivityUtils.ContextActivity(invokerExec.CurrentActivity).GetValue(Activity.ActivityExecutionContextInfoProperty)).ContextGuid }; if (invokerExec.CurrentActivity.Parent == null) { state2.CallerParentContextGuid = state2.CallerContextGuid; } else { state2.CallerParentContextGuid = ((ActivityExecutionContextInfo) ContextActivityUtils.ContextActivity(invokerExec.CurrentActivity.Parent).GetValue(Activity.ActivityExecutionContextInfoProperty)).ContextGuid; } this.rootActivity.SetValue(TrackingCallingStateProperty, state2); } this._setInArgsOnCompanion(namedArguments); this.schedulingContext = new System.Workflow.Runtime.Scheduler(this, true); this._schedulerLock = LockFactory.CreateWorkflowSchedulerLock(this.InstanceId); this.qService = new WorkflowQueuingService(this); this._workflowInstance = workflowInstance; this.TimerQueue = new TimerEventSubscriptionCollection(this, this.InstanceId); using (new ServiceEnvironment(this.rootActivity)) { using (this.SetCurrentActivity(this.rootActivity)) { this.RegisterDynamicActivity(this.rootActivity, false); } } }
internal WorkflowExecutor(Guid instanceId) { this._executorLock = LockFactory.CreateWorkflowExecutorLock(instanceId); this._msgDeliveryLock = LockFactory.CreateWorkflowMessageDeliveryLock(instanceId); this.stateChangedSincePersistence = true; if (!workflowDebuggingDisabled) { this._workflowDebuggerService = new WorkflowDebuggerService(this); } }
internal void Initialize(Activity rootActivity, System.Workflow.Runtime.WorkflowRuntime runtime, WorkflowExecutor previousWorkflowExecutor) { this._workflowInstance = previousWorkflowExecutor.WorkflowInstance; this.ReloadHelper(rootActivity); this.IsInstanceValid = true; this._runtime = runtime; this._runtime.WorkflowExecutorCreated(this, true); this.TimerQueue.Executor = this; this.TimerQueue.ResumeDelivery(); this._executorLock = previousWorkflowExecutor._executorLock; this._msgDeliveryLock = previousWorkflowExecutor._msgDeliveryLock; this._schedulerLock = previousWorkflowExecutor._schedulerLock; ScheduleWork.Executor = this; }
internal static void AssertIsLocked(InstanceLock theLock) { }
internal static void AssertIsLocked(InstanceLock theLock) { #if DEBUG System.Diagnostics.Debug.Assert(HeldLocks.Contains(theLock), "Lock should be held."); #endif }
internal WorkflowExecutor(Guid instanceId) { this._isInstanceValid = false; this._executorLock = LockFactory.CreateWorkflowExecutorLock(instanceId); this._msgDeliveryLock = LockFactory.CreateWorkflowMessageDeliveryLock(instanceId); this.stateChangedSincePersistence = true; // If DisableWorkflowDebugging switch is turned off create WorkflowDebuggerService if (!workflowDebuggingDisabled) this._workflowDebuggerService = new WorkflowDebuggerService(this); }
// Initialize for the root schedule internal void Initialize(Activity rootActivity, WorkflowExecutor invokerExec, string invokeActivityID, Guid instanceId, IDictionary<string, object> namedArguments, WorkflowInstance workflowInstance) { this.rootActivity = rootActivity; this.InstanceId = instanceId; // Set the persisted State properties this.rootActivity.SetValue(WorkflowExecutor.ContextIdProperty, 0); this.rootActivity.SetValue(WorkflowInstanceIdProperty, instanceId); this.WorkflowStatus = WorkflowStatus.Created; this.rootActivity.SetValue(Activity.ActivityExecutionContextInfoProperty, new ActivityExecutionContextInfo(this.rootActivity.QualifiedName, GetNewContextId(), instanceId, -1)); this.rootActivity.SetValue(Activity.ActivityContextGuidProperty, instanceId); this.rootActivity.SetValue(WorkflowExecutor.IsIdleProperty, true); this.isInstanceIdle = true; // set workflow executor this.rootActivity.SetValue(WorkflowExecutor.WorkflowExecutorProperty, this); // initialize the root activity RefreshWorkflowDefinition(); Activity workflowDefinition = this.WorkflowDefinition; if (workflowDefinition == null) throw new InvalidOperationException("workflowDefinition"); ((IDependencyObjectAccessor)this.rootActivity).InitializeActivatingInstanceForRuntime(null, this); this.rootActivity.FixUpMetaProperties(workflowDefinition); _runtime = workflowInstance.WorkflowRuntime; if (invokerExec != null) { List<string> calleeBase = new List<string>(); TrackingCallingState parentTCS = (TrackingCallingState)invokerExec.rootActivity.GetValue(WorkflowExecutor.TrackingCallingStateProperty); if ((parentTCS != null) && (parentTCS.CallerActivityPathProxy != null)) { foreach (string qualifiedID in parentTCS.CallerActivityPathProxy) calleeBase.Add(qualifiedID); } calleeBase.Add(invokeActivityID); // // This has been exec'd by another instance // Set up tracking info to allow linking instances Debug.Assert(invokeActivityID != null && invokeActivityID.Length > 0); TrackingCallingState trackingCallingState = new TrackingCallingState(); trackingCallingState.CallerActivityPathProxy = calleeBase; trackingCallingState.CallerWorkflowInstanceId = invokerExec.InstanceId; trackingCallingState.CallerContextGuid = ((ActivityExecutionContextInfo)ContextActivityUtils.ContextActivity(invokerExec.CurrentActivity).GetValue(Activity.ActivityExecutionContextInfoProperty)).ContextGuid; if (null == invokerExec.CurrentActivity.Parent) trackingCallingState.CallerParentContextGuid = trackingCallingState.CallerContextGuid; else trackingCallingState.CallerParentContextGuid = ((ActivityExecutionContextInfo)ContextActivityUtils.ContextActivity(invokerExec.CurrentActivity.Parent).GetValue(Activity.ActivityExecutionContextInfoProperty)).ContextGuid; this.rootActivity.SetValue(WorkflowExecutor.TrackingCallingStateProperty, trackingCallingState); } _setInArgsOnCompanion(namedArguments); this.schedulingContext = new Scheduler(this, true); this._schedulerLock = LockFactory.CreateWorkflowSchedulerLock(this.InstanceId); qService = new WorkflowQueuingService(this); _workflowInstance = workflowInstance; TimerQueue = new TimerEventSubscriptionCollection(this, this.InstanceId); // register the dynamic activity using (new ServiceEnvironment(this.rootActivity)) { using (SetCurrentActivity(this.rootActivity)) { this.RegisterDynamicActivity(this.rootActivity, false); } } }