/// <summary>
/// Realease all the resources associated with the transaction.
/// </summary>
public void Unlock(StateManagerTransactionContext transactionContext)
{
var lockContext = transactionContext.LockContext;
var metadata = this.GetMetadata(lockContext.Key, true);
if (transactionContext.OperationType == OperationType.Add)
{
if (metadata != null)
{
if (metadata.StateProviderId == lockContext.StateProviderId)
{
if (metadata.TransientCreate)
{
// Delete lock entry and data.
this.Remove(lockContext.Key, transactionContext.TransactionId, Timeout.InfiniteTimeSpan);
}
else
{
// successful create.
lockContext.Release(transactionContext.TransactionId);
FabricEvents.Events.StateProviderMetadataManagerUnlock(
this.TraceType,
transactionContext.TransactionId);
}
}
else
{
// creation of a state provider that already exists
lockContext.Release(transactionContext.TransactionId);
}
}
else
{
// metadata has been removed but there is a subsequent add in the same transaction.
this.RemoveLock(lockContext, transactionContext.TransactionId);
}
}
else if (transactionContext.OperationType == OperationType.Remove)
{
if (metadata != null)
{
if (metadata.StateProviderId == lockContext.StateProviderId)
{
if (metadata.TransientDelete)
{
metadata.TransientDelete = false;
lockContext.Release(transactionContext.TransactionId);
FabricEvents.Events.StateProviderMetadataManagerUnlock(
this.TraceType,
transactionContext.TransactionId);
}
else
{
// Delete got aborted.
lockContext.Release(transactionContext.TransactionId);
}
}
}
else if (this.DeletedStateProviders.ContainsKey(lockContext.StateProviderId))
{
// state provider has been deleted (this is used on false progress as well)
FabricEvents.Events.StateProviderMetadataManagerUnlockDelete(
this.TraceType,
lockContext.Key.OriginalString,
transactionContext.TransactionId);
// data has beeen deleted, delete the lock entry.
this.RemoveLock(lockContext, transactionContext.TransactionId);
}
else
{
// trying to delete a state provider that does not exist.
this.RemoveLock(lockContext, transactionContext.TransactionId);
}
}
else
{
Utility.Assert(
transactionContext.OperationType == OperationType.Read,
"{0}: Unlock: operation type should be a read type. OperationType: {1}",
this.traceType,
transactionContext.OperationType);
// Reading a state provider that does not exist
if (metadata == null)
{
this.RemoveLock(lockContext, transactionContext.TransactionId);
}
else
{
transactionContext.LockContext.Release(transactionContext.TransactionId);
}
}
}
/// <summary>
/// Release locks.
/// </summary>
public void Unlock(StateManagerTransactionContext transactionContext)
{
this.MetadataManager.Unlock(transactionContext);
}
