protected StateMachine(TransactionEnlistment enlistment)
{
this.enlistment = enlistment;
this.state = enlistment.State;
this.synchronization = new SynchronizationManager(this);
if (DebugTrace.Warning || DiagnosticUtility.ShouldTraceWarning)
{
this.history = new StateMachineHistory();
}
}
private void TryToAbortTransaction(SynchronizationEvent e, Microsoft.Transactions.Wsat.Protocol.TransactionEnlistment enlistment)
{
if (this is InactiveState)
{
enlistment.StateMachine.ChangeState(enlistment.StateMachine.AbortedState);
}
else if (this is ActiveState)
{
this.state.TransactionManagerSend.Rollback(enlistment);
enlistment.StateMachine.ChangeState(enlistment.StateMachine.AbortedState);
}
}
public void SendRegisterResponse(Microsoft.Transactions.Wsat.Protocol.TransactionEnlistment enlistment, Microsoft.Transactions.Wsat.Messaging.RequestAsyncResult result, ControlProtocol protocol, EndpointAddress coordinatorService)
{
RegisterResponse response = new RegisterResponse(this.state.ProtocolVersion)
{
CoordinatorProtocolService = coordinatorService
};
if (DebugTrace.Info)
{
DebugTrace.TxTrace(TraceLevel.Info, enlistment.EnlistmentId, "Sending RegisterResponse for {0}", protocol);
}
RegistrationProxy.SendRegisterResponse(result, ref response);
}
private CompletionEnlistment CheckMessage(Message message, bool reply)
{
Guid guid;
if (!Ports.TryGetEnlistment(message, out guid))
{
DebugTrace.Trace(TraceLevel.Warning, "Could not read enlistment header from message");
if (reply)
{
this.SendFault(message, this.state.Faults.InvalidParameters);
}
return(null);
}
Microsoft.Transactions.Wsat.Protocol.TransactionEnlistment enlistment = this.state.Lookup.FindEnlistment(guid);
if (enlistment == null)
{
DebugTrace.Trace(TraceLevel.Warning, "Could not find enlistment {0}", guid);
if (reply)
{
this.SendFault(message, this.state.Faults.InvalidState);
}
return(null);
}
CompletionEnlistment enlistment2 = enlistment as CompletionEnlistment;
if (enlistment2 == null)
{
DebugTrace.Trace(TraceLevel.Warning, "Completion message received for non-completion enlistment {0}", guid);
if (reply)
{
this.SendFault(message, this.state.Faults.InvalidParameters);
}
return(null);
}
if (this.state.Service.Security.CheckIdentity(enlistment2.ParticipantProxy, message))
{
return(enlistment2);
}
if (EnlistmentIdentityCheckFailedRecord.ShouldTrace)
{
EnlistmentIdentityCheckFailedRecord.Trace(enlistment2.EnlistmentId);
}
return(null);
}
private void InvalidFaultEvent(SynchronizationEvent e, Microsoft.Transactions.Wsat.Protocol.TransactionEnlistment enlistment, MessageFault fault)
{
this.TraceInvalidEvent(e, false);
this.TryToAbortTransaction(e, enlistment);
}
private bool CheckMessage(Message message, bool fault, out CoordinatorEnlistment durableCoordinator, out VolatileCoordinatorEnlistment volatileCoordinator)
{
Guid guid;
TwoPhaseCommitCoordinatorProxy coordinatorProxy;
durableCoordinator = null;
volatileCoordinator = null;
if (!Ports.TryGetEnlistment(message, out guid))
{
DebugTrace.Trace(TraceLevel.Warning, "Could not read enlistment header from message");
if (fault)
{
this.SendFault(message, this.state.Faults.InvalidParameters);
}
return(false);
}
Microsoft.Transactions.Wsat.Protocol.TransactionEnlistment enlistment = this.state.Lookup.FindEnlistment(guid);
if (enlistment == null)
{
DebugTrace.Trace(TraceLevel.Warning, "Could not find enlistment {0}", guid);
return(true);
}
durableCoordinator = enlistment as CoordinatorEnlistment;
if (durableCoordinator == null)
{
volatileCoordinator = enlistment as VolatileCoordinatorEnlistment;
if (volatileCoordinator == null)
{
DebugTrace.Trace(TraceLevel.Warning, "2PC message received for non-2PC enlistment {0}", guid);
if (fault)
{
this.SendFault(message, this.state.Faults.InvalidParameters);
}
return(false);
}
coordinatorProxy = volatileCoordinator.CoordinatorProxy;
}
else
{
coordinatorProxy = durableCoordinator.CoordinatorProxy;
}
if (coordinatorProxy == null)
{
if ((durableCoordinator != null) && object.ReferenceEquals(durableCoordinator.StateMachine.State, this.state.States.CoordinatorFailedRecovery))
{
DebugTrace.TxTrace(TraceLevel.Warning, enlistment.EnlistmentId, "Coordinator enlistment was not correctly recovered");
if (fault)
{
this.SendFault(message, this.state.Faults.InvalidPolicy);
}
return(false);
}
if (DebugTrace.Warning)
{
DebugTrace.TxTrace(TraceLevel.Warning, enlistment.EnlistmentId, "Received premature message with action {0}", message.Headers.Action);
}
if (fault)
{
this.SendFault(message, this.state.Faults.InvalidState);
}
return(false);
}
if (this.state.Service.Security.CheckIdentity(coordinatorProxy, message))
{
return(true);
}
if (EnlistmentIdentityCheckFailedRecord.ShouldTrace)
{
EnlistmentIdentityCheckFailedRecord.Trace(enlistment.EnlistmentId);
}
return(false);
}
protected SynchronizationEvent(TransactionEnlistment enlistment)
{
this.enlistment = enlistment;
this.state = enlistment.State;
}
public TmRollbackResponseEvent(TransactionEnlistment enlistment, Microsoft.Transactions.Bridge.Status status) : base(enlistment)
{
this.status = status;
}
private ParticipantEnlistment CheckMessage(Message message, bool fault, bool preparedOrReplay)
{
Guid guid;
ControlProtocol protocol;
if (!Ports.TryGetEnlistment(message, out guid, out protocol))
{
DebugTrace.Trace(TraceLevel.Warning, "Could not read enlistment header from message");
if (fault)
{
this.SendFault(message, this.state.Faults.InvalidParameters);
}
return(null);
}
Microsoft.Transactions.Wsat.Protocol.TransactionEnlistment enlistment = this.state.Lookup.FindEnlistment(guid);
if (enlistment == null)
{
DebugTrace.Trace(TraceLevel.Verbose, "Enlistment {0} could not be found", guid);
if (preparedOrReplay)
{
if (protocol == ControlProtocol.Volatile2PC)
{
if (DebugTrace.Warning)
{
DebugTrace.Trace(TraceLevel.Warning, "Received Prepared or Replay from unrecognized volatile participant at {0}", Ports.TryGetFromAddress(message));
}
if (VolatileParticipantInDoubtRecord.ShouldTrace)
{
VolatileParticipantInDoubtRecord.Trace(guid, Library.GetReplyToHeader(message.Headers), this.state.ProtocolVersion);
}
this.SendFault(message, this.state.Faults.UnknownTransaction);
}
else if (protocol == ControlProtocol.Durable2PC)
{
this.SendRollback(message);
}
else
{
this.SendFault(message, this.state.Faults.InvalidParameters);
}
}
else if (DebugTrace.Info)
{
DebugTrace.Trace(TraceLevel.Info, "Ignoring message from unrecognized participant at {0}", Ports.TryGetFromAddress(message));
}
return(null);
}
ParticipantEnlistment enlistment2 = enlistment as ParticipantEnlistment;
if ((enlistment2 == null) || (protocol != enlistment2.ControlProtocol))
{
DebugTrace.Trace(TraceLevel.Warning, "Enlistment state does not match message for {0}", guid);
if (fault)
{
this.SendFault(message, this.state.Faults.InvalidParameters);
}
return(null);
}
if (enlistment2.ParticipantProxy == null)
{
DebugTrace.TxTrace(TraceLevel.Warning, enlistment2.EnlistmentId, "Participant enlistment was not correctly recovered");
if (fault)
{
this.SendFault(message, this.state.Faults.InvalidPolicy);
}
return(null);
}
if (this.state.Service.Security.CheckIdentity(enlistment2.ParticipantProxy, message))
{
return(enlistment2);
}
if (EnlistmentIdentityCheckFailedRecord.ShouldTrace)
{
EnlistmentIdentityCheckFailedRecord.Trace(enlistment2.EnlistmentId);
}
return(null);
}
public void Rollback(TransactionEnlistment enlistment)
{
if (DebugTrace.Info)
{
DebugTrace.TxTrace(TraceLevel.Info, enlistment.EnlistmentId, "Sending Rollback to transaction manager");
}
this.coordination.Rollback(enlistment.Enlistment, this.rollbackResponseCallback, enlistment);
}
public void ForgetResponse(TransactionEnlistment enlistment, Status status)
{
if (DebugTrace.Info)
{
DebugTrace.TxTrace(TraceLevel.Info, enlistment.EnlistmentId, "Replying {0} to transaction manager's Forget", status);
}
enlistment.DeliverCallback(status);
}
public void AddEnlistment(TransactionEnlistment enlistment)
{
this.Add <Guid, TransactionEnlistment>(this.enlistments, this.enlistmentLock, enlistment.EnlistmentId, enlistment);
}
public void RemoveEnlistment(TransactionEnlistment enlistment)
{
this.Remove <Guid, TransactionEnlistment>(this.enlistments, this.enlistmentLock, enlistment.EnlistmentId, enlistment);
}