// Returns null if an InstanceHandleConflictException should be thrown.
internal InstanceView Commit(InstanceView newState)
{
Fx.Assert(newState != null, "Null view passed to Commit.");
newState.MakeReadOnly();
View = newState;
List <InstanceHandleReference> handlesPendingResolution = null;
InstanceHandle handleToFree = null;
List <InstancePersistenceEvent> normals = null;
WaitForEventsAsyncResult resultToComplete = null;
try
{
lock (ThisLock)
{
if (this.inProgressBind != null)
{
// If there's a Version, it should be committed.
if (Version != -1)
{
if (!Owner.TryCompleteBind(ref this.inProgressBind, ref handlesPendingResolution, out handleToFree))
{
return(null);
}
}
else
{
Fx.Assert(OperationPending, "Should have cancelled this bind in FinishOperation.");
Fx.Assert(AcquirePending == null, "Should not be in Commit during AcquirePending.");
Owner.CancelBind(ref this.inProgressBind, ref handlesPendingResolution);
}
}
if (this.pendingOwnerEvents != null && IsValid)
{
if (this.boundOwnerEvents == null)
{
this.boundOwnerEvents = new HashSet <XName>();
}
foreach (InstancePersistenceEvent persistenceEvent in this.pendingOwnerEvents)
{
if (!this.boundOwnerEvents.Add(persistenceEvent.Name))
{
Fx.Assert("Should not have conflicts between pending and bound events.");
continue;
}
InstancePersistenceEvent normal = Store.AddHandleToEvent(this, persistenceEvent, Owner);
if (normal != null)
{
if (normals == null)
{
normals = new List <InstancePersistenceEvent>(this.pendingOwnerEvents.Count);
}
normals.Add(normal);
}
}
this.pendingOwnerEvents = null;
if (normals != null && this.waitResult != null)
{
resultToComplete = this.waitResult;
this.waitResult = null;
}
}
return(View);
}
}
finally
{
InstanceOwner.ResolveHandles(handlesPendingResolution);
// This is a convenience, it is not required for correctness.
if (handleToFree != null)
{
Fx.Assert(!object.ReferenceEquals(handleToFree, this), "Shouldn't have been told to free ourselves.");
handleToFree.Free();
}
if (resultToComplete != null)
{
resultToComplete.Signaled(normals);
}
}
}
public void Open(TimeSpan timeout)
{
Fx.Assert(Host != null, "Extension should have been attached in WorkflowServiceHost constructor.");
lock (this.thisLock)
{
ThrowIfDisposedOrImmutable(this.state);
this.state = States.Opened;
}
InitializeDefinitionProvider();
CheckPersistenceProviderBehavior();
SetDefaultOwnerMetadata();
if (InstanceStore != null)
{
using (new TransactionScope(TransactionScopeOption.Suppress))
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
InstanceHandle handle = null;
try
{
handle = InstanceStore.CreateInstanceHandle(null);
this.owner = InstanceStore.Execute(handle, GetCreateOwnerCommand(), timeoutHelper.RemainingTime()).InstanceOwner;
this.handle = handle;
handle = null;
}
catch (InstancePersistenceException exception)
{
throw FxTrace.Exception.AsError(new CommunicationException(SR.UnableToOpenAndRegisterStore, exception));
}
finally
{
if (handle != null)
{
handle.Free();
}
}
}
}
InitializePersistenceProviderDirectory();
}
internal InstanceView Commit(InstanceView newState)
{
InstanceView view;
newState.MakeReadOnly();
this.View = newState;
List <InstanceHandleReference> handlesPendingResolution = null;
InstanceHandle handleToFree = null;
List <InstancePersistenceEvent> persistenceEvents = null;
WaitForEventsAsyncResult waitResult = null;
try
{
lock (this.ThisLock)
{
if (this.inProgressBind != null)
{
if (this.Version != -1L)
{
if (!this.Owner.TryCompleteBind(ref this.inProgressBind, ref handlesPendingResolution, out handleToFree))
{
return(null);
}
}
else
{
this.Owner.CancelBind(ref this.inProgressBind, ref handlesPendingResolution);
}
}
if ((this.pendingOwnerEvents != null) && this.IsValid)
{
if (this.boundOwnerEvents == null)
{
this.boundOwnerEvents = new HashSet <XName>();
}
foreach (InstancePersistenceEvent event2 in this.pendingOwnerEvents)
{
if (this.boundOwnerEvents.Add(event2.Name))
{
InstancePersistenceEvent item = this.Store.AddHandleToEvent(this, event2, this.Owner);
if (item != null)
{
if (persistenceEvents == null)
{
persistenceEvents = new List <InstancePersistenceEvent>(this.pendingOwnerEvents.Count);
}
persistenceEvents.Add(item);
}
}
}
this.pendingOwnerEvents = null;
if ((persistenceEvents != null) && (this.waitResult != null))
{
waitResult = this.waitResult;
this.waitResult = null;
}
}
view = this.View;
}
}
finally
{
InstanceOwner.ResolveHandles(handlesPendingResolution);
if (handleToFree != null)
{
handleToFree.Free();
}
if (waitResult != null)
{
waitResult.Signaled(persistenceEvents);
}
}
return(view);
}
internal static IAsyncResult BeginOuterExecute(InstanceHandle initialInstanceHandle, InstancePersistenceCommand command, Transaction transaction, TimeSpan timeout, AsyncCallback callback, object state)
{
try
{
return new ExecuteAsyncResult(initialInstanceHandle, command, transaction, timeout, callback, state);
}
catch (TimeoutException)
{
initialInstanceHandle.Free();
throw;
}
catch (OperationCanceledException)
{
initialInstanceHandle.Free();
throw;
}
}
internal static InstanceView OuterExecute(InstanceHandle initialInstanceHandle, InstancePersistenceCommand command, Transaction transaction, TimeSpan timeout)
{
try
{
return ExecuteAsyncResult.End(new ExecuteAsyncResult(initialInstanceHandle, command, transaction, timeout));
}
catch (TimeoutException)
{
initialInstanceHandle.Free();
throw;
}
catch (OperationCanceledException)
{
initialInstanceHandle.Free();
throw;
}
}
public void Open(TimeSpan timeout)
{
lock (this.thisLock)
{
ThrowIfDisposedOrImmutable(this.state);
this.state = 1;
}
this.CheckPersistenceProviderBehavior();
this.SetDefaultOwnerMetadata();
if (this.InstanceStore != null)
{
using (new TransactionScope(TransactionScopeOption.Suppress))
{
TimeoutHelper helper = new TimeoutHelper(timeout);
InstanceHandle handle = null;
try
{
handle = this.InstanceStore.CreateInstanceHandle((InstanceOwner) null);
this.owner = this.InstanceStore.Execute(handle, this.createOwnerCommand, helper.RemainingTime()).InstanceOwner;
this.handle = handle;
handle = null;
}
catch (InstancePersistenceException exception)
{
throw System.ServiceModel.Activities.FxTrace.Exception.AsError(new CommunicationException(System.ServiceModel.Activities.SR.UnableToOpenAndRegisterStore, exception));
}
finally
{
if (handle != null)
{
handle.Free();
}
}
}
}
this.InitializePersistenceProviderDirectory();
}