// SetCurrent
//
// Place the given value in current by whatever means necessary for interop mode.
private void SetCurrent(Transaction newCurrent)
{
// Keep a dependent clone of current if we don't have one and we are not committable
if (_dependentTransaction == null && _committableTransaction == null)
{
if (newCurrent != null)
{
_dependentTransaction = newCurrent.DependentClone(DependentCloneOption.RollbackIfNotComplete);
}
}
switch (_interopOption)
{
case EnterpriseServicesInteropOption.None:
_threadContextData.CurrentTransaction = newCurrent;
break;
case EnterpriseServicesInteropOption.Automatic:
EnterpriseServices.VerifyEnterpriseServicesOk();
if (EnterpriseServices.UseServiceDomainForCurrent())
{
EnterpriseServices.PushServiceDomain(newCurrent);
}
else
{
_threadContextData.CurrentTransaction = newCurrent;
}
break;
case EnterpriseServicesInteropOption.Full:
EnterpriseServices.VerifyEnterpriseServicesOk();
EnterpriseServices.PushServiceDomain(newCurrent);
break;
}
}
// RestoreCurrent
//
// Restore current to it's previous value depending on how it was changed for this scope.
private void RestoreCurrent()
{
if (EnterpriseServices.CreatedServiceDomain)
{
EnterpriseServices.LeaveServiceDomain();
}
// Only restore the value that was actually in the context.
_threadContextData.CurrentTransaction = _contextTransaction;
}
internal static Transaction FastGetTransaction(TransactionScope currentScope, ContextData contextData, out Transaction contextTransaction)
{
Transaction current = null;
contextTransaction = null;
contextTransaction = contextData.CurrentTransaction;
switch (InteropMode(currentScope))
{
case EnterpriseServicesInteropOption.None:
current = contextTransaction;
// If there is a transaction in the execution context or if there is a current transaction scope
// then honer the transaction context.
if (current == null && currentScope == null)
{
// Otherwise check for an external current.
if (TransactionManager.s_currentDelegateSet)
{
current = TransactionManager.s_currentDelegate();
}
else
{
current = EnterpriseServices.GetContextTransaction(contextData);
}
}
break;
case EnterpriseServicesInteropOption.Full:
current = EnterpriseServices.GetContextTransaction(contextData);
break;
case EnterpriseServicesInteropOption.Automatic:
if (EnterpriseServices.UseServiceDomainForCurrent())
{
current = EnterpriseServices.GetContextTransaction(contextData);
}
else
{
current = contextData.CurrentTransaction;
}
break;
}
return(current);
}