private bool OpenProvider()
{
if (this.operation == WorkflowServiceInstance.PersistenceOperation.Unload)
{
if (((this.instance.state != WorkflowServiceInstance.State.Suspended) && !this.instance.IsIdle) && this.isTry)
{
this.tryResult = false;
return true;
}
if (!this.instance.TryReleaseLastReference() && this.isTry)
{
this.tryResult = false;
return true;
}
}
if ((this.operation == WorkflowServiceInstance.PersistenceOperation.Unload) && (this.instance.Controller.State == WorkflowInstanceState.Complete))
{
this.operation = WorkflowServiceInstance.PersistenceOperation.Delete;
}
bool flag = false;
if ((this.instance.persistenceContext != null) && (this.instance.persistenceContext.State == CommunicationState.Created))
{
IAsyncResult result = this.instance.persistenceContext.BeginOpen(this.timeoutHelper.RemainingTime(), this.PrepareInnerAsyncCompletion(providerOpenedCallback), this);
if (result.CompletedSynchronously)
{
flag = OnProviderOpened(result);
}
return flag;
}
return this.Track();
}
public UnloadOrPersistAsyncResult(WorkflowServiceInstance instance, WorkflowServiceInstance.PersistenceOperation operation, bool isWorkflowThread, bool isTry, TimeSpan timeout, AsyncCallback callback, object state) : base(callback, state)
{
this.instance = instance;
this.timeoutHelper = new TimeoutHelper(timeout);
this.operation = operation;
this.isWorkflowThread = isWorkflowThread;
this.isTry = isTry;
this.tryResult = true;
this.isUnloaded = (operation == WorkflowServiceInstance.PersistenceOperation.Unload) || (operation == WorkflowServiceInstance.PersistenceOperation.Delete);
this.saveStatus = SaveStatus.Locked;
this.isCompletionTransactionRequired = ((this.isUnloaded && (instance.Controller.State == WorkflowInstanceState.Complete)) && (instance.creationContext != null)) && instance.creationContext.IsCompletionTransactionRequired;
this.isIdlePolicyPersist = isTry && (operation == WorkflowServiceInstance.PersistenceOperation.Save);
if (operation == WorkflowServiceInstance.PersistenceOperation.Unload)
{
this.saveStatus = SaveStatus.Unlocked;
}
else if (operation == WorkflowServiceInstance.PersistenceOperation.Delete)
{
this.saveStatus = SaveStatus.Completed;
}
Transaction current = Transaction.Current;
if (current != null)
{
base.OnCompleting = completeCallback;
this.dependentTransaction = current.DependentClone(DependentCloneOption.BlockCommitUntilComplete);
}
bool flag = true;
bool flag2 = false;
try
{
if (this.isWorkflowThread)
{
flag = this.OpenProvider();
}
else
{
try
{
flag = this.LockAndPassGuard();
}
finally
{
if (flag)
{
this.instance.ReleaseLock(ref this.ownsLock, this.isIdlePolicyPersist);
}
}
}
flag2 = true;
}
finally
{
if (!flag2 && (this.dependentTransaction != null))
{
this.dependentTransaction.Complete();
}
}
if (flag)
{
base.Complete(true);
}
}
