public object GetRealObject(StreamingContext context)
{
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "IObjectReference.GetRealObject");
}
if (this.propagationTokenForDeserialize == null)
{
if (DiagnosticTrace.Critical)
{
InternalErrorTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("UnableToDeserializeTransaction"));
}
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("UnableToDeserializeTransactionInternalError"), null);
}
if (null != this.savedLtmPromotedTransaction)
{
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "IObjectReference.GetRealObject");
}
return(this.savedLtmPromotedTransaction);
}
Transaction transactionFromTransmitterPropagationToken = TransactionInterop.GetTransactionFromTransmitterPropagationToken(this.propagationTokenForDeserialize);
this.savedLtmPromotedTransaction = transactionFromTransmitterPropagationToken;
if (DiagnosticTrace.Verbose)
{
TransactionDeserializedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), transactionFromTransmitterPropagationToken.internalTransaction.PromotedTransaction.TransactionTraceId);
}
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "IObjectReference.GetRealObject");
}
return(transactionFromTransmitterPropagationToken);
}
internal void Commit()
{
try
{
this.transactionShim.Commit();
}
catch (COMException exception)
{
if ((System.Transactions.Oletx.NativeMethods.XACT_E_ABORTED == exception.ErrorCode) || (System.Transactions.Oletx.NativeMethods.XACT_E_INDOUBT == exception.ErrorCode))
{
Interlocked.CompareExchange <Exception>(ref this.innerException, exception, null);
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
}
else
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_ALREADYINPROGRESS == exception.ErrorCode)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), exception);
}
OletxTransactionManager.ProxyException(exception);
throw;
}
}
}
internal OletxDependentTransaction DependentClone(bool delayCommit)
{
OletxDependentTransaction transaction = null;
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxTransaction.DependentClone");
}
if (TransactionStatus.Aborted == this.Status)
{
throw TransactionAbortedException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), this.realOletxTransaction.innerException);
}
if (TransactionStatus.InDoubt == this.Status)
{
throw TransactionInDoubtException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), this.realOletxTransaction.innerException);
}
if (this.Status != TransactionStatus.Active)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), null);
}
transaction = new OletxDependentTransaction(this.realOletxTransaction, delayCommit);
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxTransaction.DependentClone");
}
return(transaction);
}
internal void Rollback()
{
lock (this)
{
if ((TransactionStatus.Aborted != this.status) && (this.status != TransactionStatus.Active))
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), null);
}
if (TransactionStatus.Aborted == this.status)
{
return;
}
if (0 < this.undecidedEnlistmentCount)
{
this.doomed = true;
}
else if (this.tooLateForEnlistments)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), null);
}
if (this.phase0EnlistVolatilementContainerList != null)
{
foreach (OletxPhase0VolatileEnlistmentContainer container in this.phase0EnlistVolatilementContainerList)
{
container.RollbackFromTransaction();
}
}
if (this.phase1EnlistVolatilementContainer != null)
{
this.phase1EnlistVolatilementContainer.RollbackFromTransaction();
}
}
try
{
this.transactionShim.Abort();
}
catch (COMException exception)
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_ALREADYINPROGRESS == exception.ErrorCode)
{
if (!this.doomed)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), exception);
}
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
}
else
{
OletxTransactionManager.ProxyException(exception);
throw;
}
}
}
internal void AddEnlistment(OletxVolatileEnlistment enlistment)
{
lock (this)
{
if (-1 != base.phase)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TooLate"), null);
}
base.enlistmentList.Add(enlistment);
}
}
internal IPromotedEnlistment EnlistDurable(Guid resourceManagerIdentifier, ISinglePhaseNotificationInternal singlePhaseNotification, bool canDoSinglePhase, EnlistmentOptions enlistmentOptions)
{
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxTransaction.EnlistDurable( ISinglePhaseNotificationInternal )");
}
if ((this.realOletxTransaction == null) || this.realOletxTransaction.TooLateForEnlistments)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TooLate"), null);
}
OletxEnlistment enlistment = this.realOletxTransaction.OletxTransactionManagerInstance.FindOrRegisterResourceManager(resourceManagerIdentifier).EnlistDurable(this, canDoSinglePhase, singlePhaseNotification, enlistmentOptions);
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxTransaction.EnlistDurable( ISinglePhaseNotificationInternal )");
}
return(enlistment);
}
internal IPromotedEnlistment EnlistVolatile(ISinglePhaseNotificationInternal singlePhaseNotification, EnlistmentOptions enlistmentOptions)
{
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxTransaction.EnlistVolatile( ISinglePhaseNotificationInternal )");
}
if ((this.realOletxTransaction == null) || this.realOletxTransaction.TooLateForEnlistments)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TooLate"), null);
}
IPromotedEnlistment enlistment = this.realOletxTransaction.EnlistVolatile(singlePhaseNotification, enlistmentOptions, this);
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxTransaction.EnlistVolatile( ISinglePhaseNotificationInternal )");
}
return(enlistment);
}
internal static void ProxyException(
COMException comException
)
{
if ((NativeMethods.XACT_E_CONNECTION_DOWN == comException.ErrorCode) ||
(NativeMethods.XACT_E_TMNOTAVAILABLE == comException.ErrorCode)
)
{
throw TransactionManagerCommunicationException.Create(
SR.GetString(SR.TraceSourceOletx),
SR.GetString(SR.TransactionManagerCommunicationException),
comException
);
}
if ((NativeMethods.XACT_E_NETWORK_TX_DISABLED == comException.ErrorCode))
{
throw TransactionManagerCommunicationException.Create(
SR.GetString(SR.TraceSourceOletx),
SR.GetString(SR.NetworkTransactionsDisabled),
comException
);
}
// Else if the error is a transaction oriented error, throw a TransactionException
else if ((NativeMethods.XACT_E_FIRST <= comException.ErrorCode) &&
(NativeMethods.XACT_E_LAST >= comException.ErrorCode))
{
// Special casing XACT_E_NOTRANSACTION
if (NativeMethods.XACT_E_NOTRANSACTION == comException.ErrorCode)
{
throw TransactionException.Create(
SR.GetString(SR.TraceSourceOletx),
SR.GetString(SR.TransactionAlreadyOver),
comException
);
}
throw TransactionException.Create(
SR.GetString(SR.TraceSourceOletx),
comException.Message,
comException
);
}
}
internal static void ProxyException(COMException comException)
{
if ((System.Transactions.Oletx.NativeMethods.XACT_E_CONNECTION_DOWN == comException.ErrorCode) || (System.Transactions.Oletx.NativeMethods.XACT_E_TMNOTAVAILABLE == comException.ErrorCode))
{
throw TransactionManagerCommunicationException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionManagerCommunicationException"), comException);
}
if (System.Transactions.Oletx.NativeMethods.XACT_E_NETWORK_TX_DISABLED == comException.ErrorCode)
{
throw TransactionManagerCommunicationException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("NetworkTransactionsDisabled"), comException);
}
if ((System.Transactions.Oletx.NativeMethods.XACT_E_FIRST <= comException.ErrorCode) && (System.Transactions.Oletx.NativeMethods.XACT_E_LAST >= comException.ErrorCode))
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_NOTRANSACTION == comException.ErrorCode)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), comException);
}
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), comException.Message, comException);
}
}
internal OletxTransactionManager(string nodeName)
{
lock (ClassSyncObject)
{
if (proxyShimFactory == null)
{
if (System.Transactions.Oletx.NativeMethods.GetNotificationFactory(ShimWaitHandle.SafeWaitHandle, out proxyShimFactory) != 0)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("UnableToGetNotificationShimFactory"), null);
}
ThreadPool.UnsafeRegisterWaitForSingleObject(ShimWaitHandle, new WaitOrTimerCallback(OletxTransactionManager.ShimNotificationCallback), null, -1, false);
}
}
this.dtcTransactionManagerLock = new ReaderWriterLock();
this.nodeNameField = nodeName;
if ((this.nodeNameField != null) && (this.nodeNameField.Length == 0))
{
this.nodeNameField = null;
}
if (DiagnosticTrace.Verbose)
{
DistributedTransactionManagerCreatedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), base.GetType(), this.nodeNameField);
}
this.configuredTransactionOptions.IsolationLevel = this.isolationLevelProperty = TransactionManager.DefaultIsolationLevel;
this.configuredTransactionOptions.Timeout = this.timeoutProperty = TransactionManager.DefaultTimeout;
this.internalResourceManager = new OletxInternalResourceManager(this);
this.dtcTransactionManagerLock.AcquireWriterLock(-1);
try
{
this.dtcTransactionManager = new System.Transactions.Oletx.DtcTransactionManager(this.nodeNameField, this);
}
finally
{
this.dtcTransactionManagerLock.ReleaseWriterLock();
}
if (resourceManagerHashTable == null)
{
resourceManagerHashTable = new Hashtable(2);
resourceManagerHashTableLock = new ReaderWriterLock();
}
}
internal OletxEnlistment EnlistDurable(
OletxTransaction oletxTransaction,
bool canDoSinglePhase,
IEnlistmentNotificationInternal enlistmentNotification,
EnlistmentOptions enlistmentOptions)
{
ResourceManagerShim?localResourceManagerShim;
Debug.Assert(oletxTransaction != null, "Argument is null");
Debug.Assert(enlistmentNotification != null, "Argument is null");
EnlistmentShim enlistmentShim;
Phase0EnlistmentShim phase0Shim;
Guid txUow = Guid.Empty;
bool undecidedEnlistmentsIncremented = false;
// Create our enlistment object.
OletxEnlistment enlistment = new(
canDoSinglePhase,
enlistmentNotification,
oletxTransaction.RealTransaction.TxGuid,
enlistmentOptions,
this,
oletxTransaction);
bool enlistmentSucceeded = false;
try
{
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != 0)
{
oletxTransaction.RealTransaction.IncrementUndecidedEnlistments();
undecidedEnlistmentsIncremented = true;
}
// This entire sequence needs to be executed before we can go on.
lock (enlistment)
{
try
{
// Do the enlistment on the proxy.
localResourceManagerShim = ResourceManagerShim;
if (localResourceManagerShim == null)
{
// The TM must be down. Throw the appropriate exception.
throw TransactionManagerCommunicationException.Create(SR.TraceSourceOletx, null);
}
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != 0)
{
oletxTransaction.RealTransaction.TransactionShim.Phase0Enlist(enlistment, out phase0Shim);
enlistment.Phase0EnlistmentShim = phase0Shim;
}
localResourceManagerShim.Enlist(oletxTransaction.RealTransaction.TransactionShim, enlistment, out enlistmentShim);
enlistment.EnlistmentShim = enlistmentShim;
}
catch (COMException comException)
{
// There is no string mapping for XACT_E_TOOMANY_ENLISTMENTS, so we need to do it here.
if (comException.ErrorCode == OletxHelper.XACT_E_TOOMANY_ENLISTMENTS)
{
throw TransactionException.Create(
SR.OletxTooManyEnlistments,
comException,
enlistment == null ? Guid.Empty : enlistment.DistributedTxId);
}
OletxTransactionManager.ProxyException(comException);
throw;
}
}
enlistmentSucceeded = true;
}
finally
{
if (!enlistmentSucceeded &&
(enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != 0 &&
undecidedEnlistmentsIncremented)
{
oletxTransaction.RealTransaction.DecrementUndecidedEnlistments();
}
}
return(enlistment);
}
internal void ReenlistThread(object?state)
{
int localLoopCount;
bool done;
OletxEnlistment? localEnlistment;
ResourceManagerShim?localResourceManagerShim;
bool success;
Timer? localTimer = null;
bool disposeLocalTimer = false;
OletxResourceManager resourceManager = (OletxResourceManager)state !;
try
{
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.MethodEnter(TraceSourceType.TraceSourceOleTx, this, $"{nameof(OletxResourceManager)}.{nameof(ReenlistThread)}");
}
lock (resourceManager)
{
localResourceManagerShim = resourceManager.ResourceManagerShim;
localTimer = resourceManager.ReenlistThreadTimer;
resourceManager.ReenlistThreadTimer = null;
resourceManager.reenlistThread = Thread.CurrentThread;
}
// We only want to do work if we have a resourceManagerShim.
if (localResourceManagerShim != null)
{
lock (resourceManager.ReenlistList)
{
// Get the current count on the list.
localLoopCount = resourceManager.ReenlistList.Count;
}
done = false;
while (!done && localLoopCount > 0 && localResourceManagerShim != null)
{
lock (resourceManager.ReenlistList)
{
localEnlistment = null;
localLoopCount--;
if (resourceManager.ReenlistList.Count == 0)
{
done = true;
}
else
{
localEnlistment = resourceManager.ReenlistList[0] as OletxEnlistment;
if (localEnlistment == null)
{
if (etwLog.IsEnabled())
{
etwLog.InternalError();
}
throw TransactionException.Create(SR.InternalError, null);
}
resourceManager.ReenlistList.RemoveAt(0);
object syncRoot = localEnlistment;
lock (syncRoot)
{
if (OletxEnlistment.OletxEnlistmentState.Done == localEnlistment.State)
{
// We may be racing with a RecoveryComplete here. Just forget about this
// enlistment.
localEnlistment = null;
}
else if (OletxEnlistment.OletxEnlistmentState.Prepared != localEnlistment.State)
{
// The app hasn't yet responded to Prepare, so we don't know
// if it is indoubt or not yet. So just re-add it to the end
// of the list.
resourceManager.ReenlistList.Add(localEnlistment);
localEnlistment = null;
}
}
}
}
if (localEnlistment != null)
{
OletxTransactionOutcome localOutcome = OletxTransactionOutcome.NotKnownYet;
try
{
Debug.Assert(localResourceManagerShim != null, "ReenlistThread - localResourceManagerShim is null");
// Make sure we have a prepare info.
if (localEnlistment.ProxyPrepareInfoByteArray == null)
{
Debug.Assert(false, string.Format(null, "this.prepareInfoByteArray == null in RecoveryInformation()"));
if (etwLog.IsEnabled())
{
etwLog.InternalError();
}
throw TransactionException.Create(SR.InternalError, null);
}
localResourceManagerShim.Reenlist(localEnlistment.ProxyPrepareInfoByteArray, out localOutcome);
if (localOutcome == OletxTransactionOutcome.NotKnownYet)
{
object syncRoot = localEnlistment;
lock (syncRoot)
{
if (OletxEnlistment.OletxEnlistmentState.Done == localEnlistment.State)
{
// We may be racing with a RecoveryComplete here. Just forget about this
// enlistment.
localEnlistment = null;
}
else
{
// Put the enlistment back on the end of the list for retry later.
lock (resourceManager.ReenlistList)
{
resourceManager.ReenlistList.Add(localEnlistment);
localEnlistment = null;
}
}
}
}
}
catch (COMException ex) when(ex.ErrorCode == OletxHelper.XACT_E_CONNECTION_DOWN)
{
if (etwLog.IsEnabled())
{
etwLog.ExceptionConsumed(TraceSourceType.TraceSourceOleTx, ex);
}
// Release the resource manager so we can create a new one.
resourceManager.ResourceManagerShim = null;
// Now create a new resource manager with the proxy.
localResourceManagerShim = resourceManager.ResourceManagerShim;
}
// If we get here and we still have localEnlistment, then we got the outcome.
if (localEnlistment != null)
{
object syncRoot = localEnlistment;
lock (syncRoot)
{
if (OletxEnlistment.OletxEnlistmentState.Done == localEnlistment.State)
{
// We may be racing with a RecoveryComplete here. Just forget about this
// enlistment.
localEnlistment = null;
}
else
{
// We are going to send the notification to the RM. We need to put the
// enlistment on the reenlistPendingList. We lock the reenlistList because
// we have decided that is the lock that protects both lists. The entry will
// be taken off the reenlistPendingList when the enlistment has
// EnlistmentDone called on it. The enlistment will call
// RemoveFromReenlistPending.
lock (resourceManager.ReenlistList)
{
resourceManager.ReenlistPendingList.Add(localEnlistment);
}
if (localOutcome == OletxTransactionOutcome.Committed)
{
localEnlistment.State = OletxEnlistment.OletxEnlistmentState.Committing;
if (etwLog.IsEnabled())
{
etwLog.EnlistmentStatus(TraceSourceType.TraceSourceOleTx, localEnlistment.EnlistmentTraceId, NotificationCall.Commit);
}
localEnlistment.EnlistmentNotification !.Commit(localEnlistment);
}
else if (localOutcome == OletxTransactionOutcome.Aborted)
{
localEnlistment.State = OletxEnlistment.OletxEnlistmentState.Aborting;
if (etwLog.IsEnabled())
{
etwLog.EnlistmentStatus(TraceSourceType.TraceSourceOleTx, localEnlistment.EnlistmentTraceId, NotificationCall.Rollback);
}
localEnlistment.EnlistmentNotification !.Rollback(localEnlistment);
}
else
{
if (etwLog.IsEnabled())
{
etwLog.InternalError();
}
throw TransactionException.Create(SR.InternalError, null);
}
}
}
} // end of if null != localEnlistment
} // end of if null != localEnlistment
}
}
localResourceManagerShim = null;
// Check to see if there is more work to do.
lock (resourceManager.ReenlistList)
{
lock (resourceManager)
{
// Get the current count on the list.
localLoopCount = resourceManager.ReenlistList.Count;
if (localLoopCount <= 0 && resourceManager.ReenlistPendingList.Count <= 0)
{
// No more entries on the list. Try calling ReenlistComplete on the proxy, if
// appropriate.
// If the application has called RecoveryComplete,
// we are responsible for calling ReenlistComplete on the
// proxy.
success = resourceManager.CallProxyReenlistComplete();
if (success)
{
// Okay, the reenlist thread is done and we don't need to schedule another one.
disposeLocalTimer = true;
}
else
{
// We couldn't talk to the proxy to do ReenlistComplete, so schedule
// the thread again for 10 seconds from now.
resourceManager.ReenlistThreadTimer = localTimer;
if (!localTimer !.Change(10000, Timeout.Infinite))
{
throw TransactionException.CreateInvalidOperationException(
TraceSourceType.TraceSourceLtm,
SR.UnexpectedTimerFailure,
null);
}
}
}
else
{
// There are still entries on the list, so they must not be
// resovled, yet. Schedule the thread again in 10 seconds.
resourceManager.ReenlistThreadTimer = localTimer;
if (!localTimer !.Change(10000, Timeout.Infinite))
{
throw TransactionException.CreateInvalidOperationException(
TraceSourceType.TraceSourceLtm,
SR.UnexpectedTimerFailure,
null);
}
}
resourceManager.reenlistThread = null;
}
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceOleTx, this, $"{nameof(OletxResourceManager)}.{nameof(ReenlistThread)}");
}
}
} // end of outer-most try
finally
{
localResourceManagerShim = null;
if (disposeLocalTimer && localTimer != null)
{
localTimer.Dispose();
}
}
} // end of ReenlistThread method;
internal OletxEnlistment Reenlist(int prepareInfoLength, byte[] prepareInfo, IEnlistmentNotificationInternal enlistmentNotification)
{
OletxRecoveryInformation information;
OletxTransactionOutcome notKnownYet = OletxTransactionOutcome.NotKnownYet;
OletxTransactionStatus xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_NONE;
MemoryStream serializationStream = new MemoryStream(prepareInfo);
IFormatter formatter = new BinaryFormatter();
try
{
information = formatter.Deserialize(serializationStream) as OletxRecoveryInformation;
}
catch (SerializationException exception2)
{
throw new ArgumentException(System.Transactions.SR.GetString("InvalidArgument"), "prepareInfo", exception2);
}
if (information == null)
{
throw new ArgumentException(System.Transactions.SR.GetString("InvalidArgument"), "prepareInfo");
}
byte[] b = new byte[0x10];
for (int i = 0; i < 0x10; i++)
{
b[i] = information.proxyRecoveryInformation[i + 0x10];
}
Guid guid = new Guid(b);
if (guid != this.resourceManagerIdentifier)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("ResourceManagerIdDoesNotMatchRecoveryInformation"), null);
}
IResourceManagerShim resourceManagerShim = null;
try
{
resourceManagerShim = this.ResourceManagerShim;
if (resourceManagerShim == null)
{
throw new COMException(System.Transactions.SR.GetString("DtcTransactionManagerUnavailable"), System.Transactions.Oletx.NativeMethods.XACT_E_CONNECTION_DOWN);
}
resourceManagerShim.Reenlist(Convert.ToUInt32(information.proxyRecoveryInformation.Length, CultureInfo.InvariantCulture), information.proxyRecoveryInformation, out notKnownYet);
if (OletxTransactionOutcome.Committed == notKnownYet)
{
xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_COMMITTED;
}
else if (OletxTransactionOutcome.Aborted == notKnownYet)
{
xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_ABORTED;
}
else
{
xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_PREPARED;
this.StartReenlistThread();
}
}
catch (COMException exception)
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_CONNECTION_DOWN != exception.ErrorCode)
{
throw;
}
xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_PREPARED;
this.ResourceManagerShim = null;
this.StartReenlistThread();
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
}
finally
{
resourceManagerShim = null;
}
return(new OletxEnlistment(enlistmentNotification, xactStatus, information.proxyRecoveryInformation, this));
}
internal void ReenlistThread(object state)
{
int count = 0;
bool flag = false;
OletxEnlistment enlistment = null;
IResourceManagerShim resourceManagerShim = null;
Timer reenlistThreadTimer = null;
bool flag2 = false;
OletxResourceManager manager = (OletxResourceManager)state;
try
{
if (DiagnosticTrace.Information)
{
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxResourceManager.ReenlistThread");
}
lock (manager)
{
resourceManagerShim = manager.ResourceManagerShim;
reenlistThreadTimer = manager.reenlistThreadTimer;
manager.reenlistThreadTimer = null;
manager.reenlistThread = Thread.CurrentThread;
}
if (resourceManagerShim != null)
{
lock (manager.reenlistList)
{
count = manager.reenlistList.Count;
}
flag = false;
while ((!flag && (count > 0)) && (resourceManagerShim != null))
{
lock (manager.reenlistList)
{
enlistment = null;
count--;
if (manager.reenlistList.Count == 0)
{
flag = true;
}
else
{
enlistment = manager.reenlistList[0] as OletxEnlistment;
if (enlistment == null)
{
if (DiagnosticTrace.Critical)
{
InternalErrorTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "");
}
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("InternalError"), null);
}
manager.reenlistList.RemoveAt(0);
object obj7 = enlistment;
lock (obj7)
{
if (OletxEnlistment.OletxEnlistmentState.Done == enlistment.State)
{
enlistment = null;
}
else if (OletxEnlistment.OletxEnlistmentState.Prepared != enlistment.State)
{
manager.reenlistList.Add(enlistment);
enlistment = null;
}
}
}
}
if (enlistment != null)
{
OletxTransactionOutcome notKnownYet = OletxTransactionOutcome.NotKnownYet;
try
{
if (enlistment.ProxyPrepareInfoByteArray == null)
{
if (DiagnosticTrace.Critical)
{
InternalErrorTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "");
}
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("InternalError"), null);
}
resourceManagerShim.Reenlist((uint)enlistment.ProxyPrepareInfoByteArray.Length, enlistment.ProxyPrepareInfoByteArray, out notKnownYet);
if (notKnownYet == OletxTransactionOutcome.NotKnownYet)
{
object obj5 = enlistment;
lock (obj5)
{
if (OletxEnlistment.OletxEnlistmentState.Done == enlistment.State)
{
enlistment = null;
}
else
{
lock (manager.reenlistList)
{
manager.reenlistList.Add(enlistment);
enlistment = null;
}
}
}
}
}
catch (COMException exception)
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_CONNECTION_DOWN != exception.ErrorCode)
{
throw;
}
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
if (System.Transactions.Oletx.NativeMethods.XACT_E_CONNECTION_DOWN == exception.ErrorCode)
{
manager.ResourceManagerShim = null;
resourceManagerShim = manager.ResourceManagerShim;
}
}
if (enlistment != null)
{
object obj3 = enlistment;
lock (obj3)
{
if (OletxEnlistment.OletxEnlistmentState.Done != enlistment.State)
{
lock (manager.reenlistList)
{
manager.reenlistPendingList.Add(enlistment);
}
if (OletxTransactionOutcome.Committed != notKnownYet)
{
if (OletxTransactionOutcome.Aborted != notKnownYet)
{
if (DiagnosticTrace.Critical)
{
InternalErrorTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "");
}
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("InternalError"), null);
}
enlistment.State = OletxEnlistment.OletxEnlistmentState.Aborting;
if (DiagnosticTrace.Verbose)
{
EnlistmentNotificationCallTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), enlistment.EnlistmentTraceId, NotificationCall.Rollback);
}
enlistment.EnlistmentNotification.Rollback(enlistment);
}
else
{
enlistment.State = OletxEnlistment.OletxEnlistmentState.Committing;
if (DiagnosticTrace.Verbose)
{
EnlistmentNotificationCallTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), enlistment.EnlistmentTraceId, NotificationCall.Commit);
}
enlistment.EnlistmentNotification.Commit(enlistment);
}
}
else
{
enlistment = null;
}
continue;
}
}
}
}
}
resourceManagerShim = null;
lock (manager.reenlistList)
{
lock (manager)
{
count = manager.reenlistList.Count;
if ((0 >= count) && (0 >= manager.reenlistPendingList.Count))
{
if (!manager.CallProxyReenlistComplete())
{
manager.reenlistThreadTimer = reenlistThreadTimer;
if (!reenlistThreadTimer.Change(0x2710, -1))
{
throw TransactionException.CreateInvalidOperationException(System.Transactions.SR.GetString("TraceSourceLtm"), System.Transactions.SR.GetString("UnexpectedTimerFailure"), null);
}
}
else
{
flag2 = true;
}
}
else
{
manager.reenlistThreadTimer = reenlistThreadTimer;
if (!reenlistThreadTimer.Change(0x2710, -1))
{
throw TransactionException.CreateInvalidOperationException(System.Transactions.SR.GetString("TraceSourceLtm"), System.Transactions.SR.GetString("UnexpectedTimerFailure"), null);
}
}
manager.reenlistThread = null;
}
if (DiagnosticTrace.Information)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxResourceManager.ReenlistThread");
}
}
}
finally
{
resourceManagerShim = null;
if (flag2 && (reenlistThreadTimer != null))
{
reenlistThreadTimer.Dispose();
}
}
}
internal OletxEnlistment(IEnlistmentNotificationInternal enlistmentNotification, OletxTransactionStatus xactStatus, byte[] prepareInfoByteArray, OletxResourceManager oletxResourceManager) : base(oletxResourceManager, null)
{
this.transactionGuid = Guid.Empty;
this.phase1Handle = IntPtr.Zero;
this.enlistmentShim = null;
this.phase0Shim = null;
this.canDoSinglePhase = false;
this.iEnlistmentNotification = enlistmentNotification;
this.state = OletxEnlistmentState.Active;
int length = prepareInfoByteArray.Length;
this.proxyPrepareInfoByteArray = new byte[length];
Array.Copy(prepareInfoByteArray, this.proxyPrepareInfoByteArray, length);
byte[] destinationArray = new byte[0x10];
Array.Copy(this.proxyPrepareInfoByteArray, destinationArray, 0x10);
this.transactionGuid = new Guid(destinationArray);
base.transactionGuidString = this.transactionGuid.ToString();
switch (xactStatus)
{
case OletxTransactionStatus.OLETX_TRANSACTION_STATUS_PREPARED:
this.state = OletxEnlistmentState.Prepared;
lock (oletxResourceManager.reenlistList)
{
oletxResourceManager.reenlistList.Add(this);
oletxResourceManager.StartReenlistThread();
goto Label_01CD;
}
break;
case OletxTransactionStatus.OLETX_TRANSACTION_STATUS_ABORTED:
this.state = OletxEnlistmentState.Aborting;
if (DiagnosticTrace.Verbose)
{
EnlistmentNotificationCallTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), base.InternalTraceIdentifier, NotificationCall.Rollback);
}
this.iEnlistmentNotification.Rollback(this);
goto Label_01CD;
case OletxTransactionStatus.OLETX_TRANSACTION_STATUS_COMMITTED:
this.state = OletxEnlistmentState.Committing;
lock (oletxResourceManager.reenlistList)
{
oletxResourceManager.reenlistPendingList.Add(this);
}
if (DiagnosticTrace.Verbose)
{
EnlistmentNotificationCallTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), base.InternalTraceIdentifier, NotificationCall.Commit);
}
this.iEnlistmentNotification.Commit(this);
goto Label_01CD;
}
if (DiagnosticTrace.Critical)
{
InternalErrorTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("OletxEnlistmentUnexpectedTransactionStatus"));
}
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("OletxEnlistmentUnexpectedTransactionStatus"), null);
Label_01CD:
if (DiagnosticTrace.Information)
{
EnlistmentTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), base.InternalTraceIdentifier, EnlistmentType.Durable, EnlistmentOptions.None);
}
base.AddToEnlistmentTable();
}
internal OletxEnlistment(
IEnlistmentNotificationInternal enlistmentNotification,
OletxTransactionStatus xactStatus,
byte[] prepareInfoByteArray,
OletxResourceManager oletxResourceManager)
: base(oletxResourceManager, null)
{
// This will get set later by the creator of this object after it
// has enlisted with the proxy.
EnlistmentShim = null;
_phase0Shim = null;
_canDoSinglePhase = false;
_iEnlistmentNotification = enlistmentNotification;
State = OletxEnlistmentState.Active;
// Do this before we do any tracing because it will affect the trace identifiers that we generate.
Debug.Assert(prepareInfoByteArray != null,
"OletxEnlistment.ctor - null oletxTransaction without a prepareInfoByteArray");
int prepareInfoLength = prepareInfoByteArray.Length;
_proxyPrepareInfoByteArray = new byte[prepareInfoLength];
Array.Copy(prepareInfoByteArray, _proxyPrepareInfoByteArray, prepareInfoLength);
byte[] txGuidByteArray = new byte[16];
Array.Copy(_proxyPrepareInfoByteArray, txGuidByteArray, 16);
_transactionGuid = new Guid(txGuidByteArray);
TransactionGuidString = _transactionGuid.ToString();
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
// If this is being created as part of a Reenlist and we already know the
// outcome, then tell the application.
switch (xactStatus)
{
case OletxTransactionStatus.OLETX_TRANSACTION_STATUS_ABORTED:
{
State = OletxEnlistmentState.Aborting;
if (etwLog.IsEnabled())
{
etwLog.EnlistmentStatus(TraceSourceType.TraceSourceOleTx, InternalTraceIdentifier, NotificationCall.Rollback);
}
_iEnlistmentNotification.Rollback(this);
break;
}
case OletxTransactionStatus.OLETX_TRANSACTION_STATUS_COMMITTED:
{
State = OletxEnlistmentState.Committing;
// We are going to send the notification to the RM. We need to put the
// enlistment on the reenlistPendingList. We lock the reenlistList because
// we have decided that is the lock that protects both lists. The entry will
// be taken off the reenlistPendingList when the enlistment has
// EnlistmentDone called on it. The enlistment will call
// RemoveFromReenlistPending.
lock (oletxResourceManager.ReenlistList)
{
oletxResourceManager.ReenlistPendingList.Add(this);
}
if (etwLog.IsEnabled())
{
etwLog.EnlistmentStatus(TraceSourceType.TraceSourceOleTx, InternalTraceIdentifier, NotificationCall.Commit);
}
_iEnlistmentNotification.Commit(this);
break;
}
case OletxTransactionStatus.OLETX_TRANSACTION_STATUS_PREPARED:
{
State = OletxEnlistmentState.Prepared;
lock (oletxResourceManager.ReenlistList)
{
oletxResourceManager.ReenlistList.Add(this);
oletxResourceManager.StartReenlistThread();
}
break;
}
default:
{
if (etwLog.IsEnabled())
{
etwLog.InternalError(SR.OletxEnlistmentUnexpectedTransactionStatus);
}
throw TransactionException.Create(
SR.OletxEnlistmentUnexpectedTransactionStatus, null, DistributedTxId);
}
}
if (etwLog.IsEnabled())
{
etwLog.EnlistmentCreated(TraceSourceType.TraceSourceOleTx, InternalTraceIdentifier, EnlistmentType.Durable, EnlistmentOptions.None);
}
// Always do this last in case anything prior to this fails.
AddToEnlistmentTable();
}
internal OletxEnlistment Reenlist(byte[] prepareInfo, IEnlistmentNotificationInternal enlistmentNotification)
{
OletxTransactionOutcome outcome = OletxTransactionOutcome.NotKnownYet;
OletxTransactionStatus xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_NONE;
if (prepareInfo == null)
{
throw new ArgumentException(SR.InvalidArgument, nameof(prepareInfo));
}
// Verify that the resource manager guid in the recovery info matches that of the calling resource manager.
byte[] rmGuidArray = new byte[16];
for (int i = 0; i < 16; i++)
{
rmGuidArray[i] = prepareInfo[i + 16];
}
Guid rmGuid = new(rmGuidArray);
if (rmGuid != ResourceManagerIdentifier)
{
throw TransactionException.Create(TraceSourceType.TraceSourceOleTx, SR.ResourceManagerIdDoesNotMatchRecoveryInformation, null);
}
// Ask the proxy resource manager to reenlist.
ResourceManagerShim?localResourceManagerShim = null;
try
{
localResourceManagerShim = ResourceManagerShim;
if (localResourceManagerShim == null)
{
// The TM must be down. Throw the exception that will get caught below and will cause
// the enlistment to start the ReenlistThread. The TMDown thread will be trying to reestablish
// connection with the TM and will start the reenlist thread when it does.
throw new COMException(SR.DtcTransactionManagerUnavailable, OletxHelper.XACT_E_CONNECTION_DOWN);
}
// Only wait for 5 milliseconds. If the TM doesn't have the outcome now, we will
// put the enlistment on the reenlistList for later processing.
localResourceManagerShim.Reenlist(prepareInfo, out outcome);
if (OletxTransactionOutcome.Committed == outcome)
{
xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_COMMITTED;
}
else if (OletxTransactionOutcome.Aborted == outcome)
{
xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_ABORTED;
}
else // we must not know the outcome yet.
{
xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_PREPARED;
StartReenlistThread();
}
}
catch (COMException ex) when(ex.ErrorCode == OletxHelper.XACT_E_CONNECTION_DOWN)
{
xactStatus = OletxTransactionStatus.OLETX_TRANSACTION_STATUS_PREPARED;
ResourceManagerShim = null;
StartReenlistThread();
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.ExceptionConsumed(TraceSourceType.TraceSourceOleTx, ex);
}
}
finally
{
localResourceManagerShim = null;
}
// Now create our enlistment to tell the client the outcome.
return(new OletxEnlistment(enlistmentNotification, xactStatus, prepareInfo, this));
}
internal OletxEnlistment EnlistDurable(OletxTransaction oletxTransaction, bool canDoSinglePhase, IEnlistmentNotificationInternal enlistmentNotification, EnlistmentOptions enlistmentOptions)
{
IResourceManagerShim resourceManagerShim = null;
IPhase0EnlistmentShim shim2 = null;
IEnlistmentShim enlistmentShim = null;
IntPtr zero = IntPtr.Zero;
bool flag3 = false;
bool flag2 = false;
OletxEnlistment target = new OletxEnlistment(canDoSinglePhase, enlistmentNotification, oletxTransaction.RealTransaction.TxGuid, enlistmentOptions, this, oletxTransaction);
bool flag = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != EnlistmentOptions.None)
{
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
oletxTransaction.RealTransaction.IncrementUndecidedEnlistments();
flag2 = true;
}
}
lock (target)
{
RuntimeHelpers.PrepareConstrainedRegions();
try
{
resourceManagerShim = this.ResourceManagerShim;
if (resourceManagerShim == null)
{
throw TransactionManagerCommunicationException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), null);
}
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != EnlistmentOptions.None)
{
zero = HandleTable.AllocHandle(target);
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
oletxTransaction.RealTransaction.TransactionShim.Phase0Enlist(zero, out shim2);
flag3 = true;
}
target.Phase0EnlistmentShim = shim2;
}
target.phase1Handle = HandleTable.AllocHandle(target);
resourceManagerShim.Enlist(oletxTransaction.RealTransaction.TransactionShim, target.phase1Handle, out enlistmentShim);
target.EnlistmentShim = enlistmentShim;
}
catch (COMException exception)
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_TOOMANY_ENLISTMENTS == exception.ErrorCode)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("OletxTooManyEnlistments"), exception);
}
OletxTransactionManager.ProxyException(exception);
throw;
}
finally
{
if (target.EnlistmentShim == null)
{
if ((zero != IntPtr.Zero) && !flag3)
{
HandleTable.FreeHandle(zero);
}
if (target.phase1Handle != IntPtr.Zero)
{
HandleTable.FreeHandle(target.phase1Handle);
}
}
}
}
flag = true;
}
finally
{
if ((!flag && ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != EnlistmentOptions.None)) && flag2)
{
oletxTransaction.RealTransaction.DecrementUndecidedEnlistments();
}
}
return(target);
}
internal OletxTransactionManager(
string nodeName
)
{
lock ( ClassSyncObject )
{
// If we have not already initialized the shim factory and started the notification
// thread, do so now.
if (null == OletxTransactionManager.proxyShimFactory)
{
Int32 error = NativeMethods.GetNotificationFactory(
OletxTransactionManager.ShimWaitHandle.SafeWaitHandle,
out OletxTransactionManager.proxyShimFactory
);
if (0 != error)
{
throw TransactionException.Create(SR.GetString(SR.TraceSourceOletx), SR.GetString(SR.UnableToGetNotificationShimFactory), null);
}
ThreadPool.UnsafeRegisterWaitForSingleObject(
OletxTransactionManager.ShimWaitHandle,
new WaitOrTimerCallback(OletxTransactionManager.ShimNotificationCallback),
null,
-1,
false
);
}
}
this.dtcTransactionManagerLock = new ReaderWriterLock();
this.nodeNameField = nodeName;
// The DTC proxy doesn't like an empty string for node name on 64-bit platforms when
// running as WOW64. It treats any non-null node name as a "remote" node and turns off
// the WOW64 bit, causing problems when reading the registry. So if we got on empty
// string for the node name, just treat it as null.
if ((null != this.nodeNameField) && (0 == this.nodeNameField.Length))
{
this.nodeNameField = null;
}
if (DiagnosticTrace.Verbose)
{
DistributedTransactionManagerCreatedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
this.GetType(),
this.nodeNameField
);
}
// Initialize the properties from config.
configuredTransactionOptions.IsolationLevel = isolationLevelProperty = TransactionManager.DefaultIsolationLevel;
configuredTransactionOptions.Timeout = timeoutProperty = TransactionManager.DefaultTimeout;
this.internalResourceManager = new OletxInternalResourceManager(this);
dtcTransactionManagerLock.AcquireWriterLock(-1);
try
{
this.dtcTransactionManager = new DtcTransactionManager(this.nodeNameField, this);
}
finally
{
dtcTransactionManagerLock.ReleaseWriterLock();
}
if (resourceManagerHashTable == null)
{
resourceManagerHashTable = new Hashtable(2);
resourceManagerHashTableLock = new System.Threading.ReaderWriterLock();
}
}