public void Run()
{
do
{
this.RootWorkflowExecutor.ProcessQueuedEvents();
// Get item to run
SchedulableItem item = GetItemToRun();
bool runningItem = false;
// no ready work to run... go away
if (item == null)
{
break;
}
Activity itemActivity = null;
Exception exp = null;
TransactionalProperties transactionalProperties = null;
int contextId = item.ContextId;
// This function gets the root or enclosing while-loop activity
Activity contextActivity = this.RootWorkflowExecutor.GetContextActivityForId(contextId);
if (contextActivity == null)
{
throw new InvalidOperationException(ExecutionStringManager.InvalidExecutionContext);
}
// This is the activity corresponding to the item's ActivityId
itemActivity = contextActivity.GetActivityByName(item.ActivityId);
using (new ServiceEnvironment(itemActivity))
{
exp = null;
bool ignoreFinallyBlock = false;
try
{
// item preamble
// set up the item transactional context if necessary
//
Debug.Assert(itemActivity != null, "null itemActivity");
if (itemActivity == null)
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, ExecutionStringManager.InvalidActivityName, item.ActivityId));
}
Activity atomicActivity = null;
if (this.RootWorkflowExecutor.IsActivityInAtomicContext(itemActivity, out atomicActivity))
{
transactionalProperties = (TransactionalProperties)atomicActivity.GetValue(WorkflowExecutor.TransactionalPropertiesProperty);
// If we've aborted for any reason stop now!
// If we attempt to enter a new TransactionScope the com+ context will get corrupted
// See windows se bug 137267
if (!WorkflowExecutor.CheckAndProcessTransactionAborted(transactionalProperties))
{
if (transactionalProperties.TransactionScope == null)
{
// Use TimeSpan.Zero so scope will not create timeout independent of the transaction
// Use EnterpriseServicesInteropOption.Full to flow transaction to COM+
transactionalProperties.TransactionScope =
new TransactionScope(transactionalProperties.Transaction, TimeSpan.Zero, EnterpriseServicesInteropOption.Full);
WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 0,
"Workflow Runtime: Scheduler: instanceId: " + this.RootWorkflowExecutor.InstanceIdString +
"Entered into TransactionScope, Current atomic acitivity " + atomicActivity.Name);
}
}
}
// Run the item
//
runningItem = true;
WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 1, "Workflow Runtime: Scheduler: InstanceId: {0} : Running scheduled entry: {1}", this.RootWorkflowExecutor.InstanceIdString, item.ToString());
// running any entry implicitly changes some state of the workflow instance
this.RootWorkflowExecutor.stateChangedSincePersistence = true;
item.Run(this.RootWorkflowExecutor);
}
catch (Exception e)
{
if (WorkflowExecutor.IsIrrecoverableException(e))
{
ignoreFinallyBlock = true;
throw;
}
else
{
if (transactionalProperties != null)
{
transactionalProperties.TransactionState = TransactionProcessState.AbortProcessed;
}
exp = e;
}
}
finally
{
if (!ignoreFinallyBlock)
{
if (runningItem)
{
WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 1, "Workflow Runtime: Scheduler: InstanceId: {0} : Done with running scheduled entry: {1}", this.RootWorkflowExecutor.InstanceIdString, item.ToString());
}
// Process exception
//
if (exp != null)
{
//
this.RootWorkflowExecutor.ExceptionOccured(exp, itemActivity == null ? contextActivity : itemActivity, null);
exp = null;
}
}
}
}
} while (true);
}
public void Run()
{
Label_0000:
this.RootWorkflowExecutor.ProcessQueuedEvents();
SchedulableItem itemToRun = this.GetItemToRun();
bool flag = false;
if (itemToRun != null)
{
Activity currentActivity = null;
Exception exp = null;
TransactionalProperties transactionalProperties = null;
int contextId = itemToRun.ContextId;
Activity contextActivityForId = this.RootWorkflowExecutor.GetContextActivityForId(contextId);
if (contextActivityForId == null)
{
throw new InvalidOperationException(ExecutionStringManager.InvalidExecutionContext);
}
currentActivity = contextActivityForId.GetActivityByName(itemToRun.ActivityId);
using (new ServiceEnvironment(currentActivity))
{
exp = null;
bool flag2 = false;
try
{
if (currentActivity == null)
{
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, ExecutionStringManager.InvalidActivityName, new object[] { itemToRun.ActivityId }));
}
Activity atomicActivity = null;
if (this.RootWorkflowExecutor.IsActivityInAtomicContext(currentActivity, out atomicActivity))
{
transactionalProperties = (TransactionalProperties)atomicActivity.GetValue(WorkflowExecutor.TransactionalPropertiesProperty);
if (!WorkflowExecutor.CheckAndProcessTransactionAborted(transactionalProperties) && (transactionalProperties.TransactionScope == null))
{
transactionalProperties.TransactionScope = new TransactionScope(transactionalProperties.Transaction, TimeSpan.Zero, EnterpriseServicesInteropOption.Full);
WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 0, "Workflow Runtime: Scheduler: instanceId: " + this.RootWorkflowExecutor.InstanceIdString + "Entered into TransactionScope, Current atomic acitivity " + atomicActivity.Name);
}
}
flag = true;
WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 1, "Workflow Runtime: Scheduler: InstanceId: {0} : Running scheduled entry: {1}", new object[] { this.RootWorkflowExecutor.InstanceIdString, itemToRun.ToString() });
this.RootWorkflowExecutor.stateChangedSincePersistence = true;
itemToRun.Run(this.RootWorkflowExecutor);
}
catch (Exception exception2)
{
if (WorkflowExecutor.IsIrrecoverableException(exception2))
{
flag2 = true;
throw;
}
if (transactionalProperties != null)
{
transactionalProperties.TransactionState = TransactionProcessState.AbortProcessed;
}
exp = exception2;
}
finally
{
if (!flag2)
{
if (flag)
{
WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 1, "Workflow Runtime: Scheduler: InstanceId: {0} : Done with running scheduled entry: {1}", new object[] { this.RootWorkflowExecutor.InstanceIdString, itemToRun.ToString() });
}
if (exp != null)
{
this.RootWorkflowExecutor.ExceptionOccured(exp, (currentActivity == null) ? contextActivityForId : currentActivity, null);
exp = null;
}
}
}
goto Label_0000;
}
}
}