private static ActivityExecutionStatus ExecuteActivity(Activity activity, ActivityExecutionContext context, bool locksAcquired)
{
TransactedContextFilter activityExecutorFromType = (TransactedContextFilter)ActivityExecutors.GetActivityExecutorFromType(typeof(TransactedContextFilter));
if (!locksAcquired && !context.AcquireLocks(activityExecutorFromType))
{
return(activity.ExecutionStatus);
}
if (GetTransactionOptions(activity) != null)
{
context.CheckpointInstanceState();
}
return(activityExecutorFromType.NextActivityExecutorInChain(activity).Execute(activity, context));
}
public override ActivityExecutionStatus Execute(Activity activity, ActivityExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (activity == null)
{
throw new ArgumentNullException("activity");
}
activity.RegisterForStatusChange(Activity.LockCountOnStatusChangeChangedEvent, this);
activity.HoldLockOnStatusChange(this);
if (executionContext.AcquireLocks(this))
{
return(this.ExecuteActivityNow(executionContext));
}
return(activity.ExecutionStatus);
}
private static ActivityExecutionStatus ExecuteActivity(Activity activity, ActivityExecutionContext context, bool locksAcquired)
{
// acquire needed synchronization
TransactedContextFilter executor = (TransactedContextFilter)ActivityExecutors.GetActivityExecutorFromType(typeof(TransactedContextFilter));
if (!locksAcquired && !context.AcquireLocks(executor))
{
return(activity.ExecutionStatus);
}
// checkpoint for instance state
//
WorkflowTransactionOptions transaction = TransactedContextFilter.GetTransactionOptions(activity);
if (transaction != null)
{
context.CheckpointInstanceState();
}
// delegate to the next executor for the activity
return(executor.NextActivityExecutorInChain(activity).Execute(activity, context));
}
