public static byte[] GetTransmitterPropagationToken(
Transaction transaction
)
{
if (!TransactionManager._platformValidated)
{
TransactionManager.ValidatePlatform();
}
if (null == transaction)
{
throw new ArgumentNullException("transaction");
}
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetTransmitterPropagationToken"
);
}
// First, make sure we are working with an OletxTransaction.
OletxTransaction oletxTx = TransactionInterop.ConvertToOletxTransaction(transaction);
byte[] token = GetTransmitterPropagationToken(oletxTx);
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetTransmitterPropagationToken"
);
}
return(token);
}
internal OletxTransaction PSPEPromote(InternalTransaction tx)
{
TransactionState state = tx.State;
base.CommonEnterState(tx);
OletxTransaction oletxTransactionFromTransmitterPropigationToken = null;
try
{
byte[] propagationToken = tx.promoter.Promote();
if (propagationToken == null)
{
throw TransactionException.CreateInvalidOperationException(System.Transactions.SR.GetString("TraceSourceLtm"), System.Transactions.SR.GetString("PromotedReturnedInvalidValue"), null);
}
try
{
oletxTransactionFromTransmitterPropigationToken = TransactionInterop.GetOletxTransactionFromTransmitterPropigationToken(propagationToken);
}
catch (ArgumentException exception)
{
throw TransactionException.CreateInvalidOperationException(System.Transactions.SR.GetString("TraceSourceLtm"), System.Transactions.SR.GetString("PromotedReturnedInvalidValue"), exception);
}
if (TransactionManager.FindPromotedTransaction(oletxTransactionFromTransmitterPropigationToken.Identifier) != null)
{
oletxTransactionFromTransmitterPropigationToken.Dispose();
throw TransactionException.CreateInvalidOperationException(System.Transactions.SR.GetString("TraceSourceLtm"), System.Transactions.SR.GetString("PromotedTransactionExists"), null);
}
}
finally
{
state.CommonEnterState(tx);
}
return(oletxTransactionFromTransmitterPropigationToken);
}
public static IDtcTransaction GetDtcTransaction(
Transaction transaction
)
{
if (!TransactionManager._platformValidated)
{
TransactionManager.ValidatePlatform();
}
if (null == transaction)
{
throw new ArgumentNullException("transaction");
}
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetDtcTransaction"
);
}
IDtcTransaction transactionNative = null;
// First, make sure we are working with an OletxTransaction.
OletxTransaction oletxTx = TransactionInterop.ConvertToOletxTransaction(transaction);
try
{
oletxTx.realOletxTransaction.TransactionShim.GetITransactionNative(out transactionNative);
}
catch (COMException comException)
{
OletxTransactionManager.ProxyException(comException);
throw;
}
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetDtcTransaction"
);
}
return(transactionNative);
}
public static byte[] GetExportCookie(
Transaction transaction,
byte[] whereabouts
)
{
if (!TransactionManager._platformValidated)
{
TransactionManager.ValidatePlatform();
}
byte[] cookie = null;
if (null == transaction)
{
throw new ArgumentNullException("transaction");
}
if (null == whereabouts)
{
throw new ArgumentNullException("whereabouts");
}
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetExportCookie"
);
}
// Copy the whereabouts so that it cannot be modified later.
byte[] whereaboutsCopy = new byte[whereabouts.Length];
Array.Copy(whereabouts, whereaboutsCopy, whereabouts.Length);
whereabouts = whereaboutsCopy;
int cookieIndex = 0;
UInt32 cookieSize = 0;
CoTaskMemHandle cookieBuffer = null;
// First, make sure we are working with an OletxTransaction.
OletxTransaction oletxTx = TransactionInterop.ConvertToOletxTransaction(transaction);
try
{
oletxTx.realOletxTransaction.TransactionShim.Export(
Convert.ToUInt32(whereabouts.Length),
whereabouts,
out cookieIndex,
out cookieSize,
out cookieBuffer);
// allocate and fill in the cookie
cookie = new byte[cookieSize];
Marshal.Copy(cookieBuffer.DangerousGetHandle(), cookie, 0, Convert.ToInt32(cookieSize));
}
catch (COMException comException)
{
OletxTransactionManager.ProxyException(comException);
// We are unsure of what the exception may mean. It is possible that
// we could get E_FAIL when trying to contact a transaction manager that is
// being blocked by a fire wall. On the other hand we may get a COMException
// based on bad data. The more common situation is that the data is fine
// (since it is generated by Microsoft code) and the problem is with
// communication. So in this case we default for unknown exceptions to
// assume that the problem is with communication.
throw TransactionManagerCommunicationException.Create(SR.GetString(SR.TraceSourceOletx), comException);
}
finally
{
if (null != cookieBuffer)
{
cookieBuffer.Close();
}
}
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetExportCookie"
);
}
return(cookie);
}
public static Transaction GetTransactionFromTransmitterPropagationToken(
byte[] propagationToken
)
{
if (!TransactionManager._platformValidated)
{
TransactionManager.ValidatePlatform();
}
Transaction returnValue = null;
if (null == propagationToken)
{
throw new ArgumentNullException("propagationToken");
}
if (propagationToken.Length < 24)
{
throw new ArgumentException(SR.GetString(SR.InvalidArgument), "propagationToken");
}
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetTransactionFromTransmitterPropagationToken"
);
}
// Extract the transaction guid from the propagation token to see if we already have a
// transaction object for the transaction.
byte[] guidByteArray = new byte[16];
for (int i = 0; i < guidByteArray.Length; i++)
{
// In a propagation token, the transaction guid is preceeded by two version DWORDs.
guidByteArray[i] = propagationToken[i + 8];
}
Guid txId = new Guid(guidByteArray);
// First check to see if there is a promoted LTM transaction with the same ID. If there
// is, just return that.
Transaction tx = TransactionManager.FindPromotedTransaction(txId);
if (null != tx)
{
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetTransactionFromTransmitterPropagationToken"
);
}
return(tx);
}
OletxTransaction oleTx = TransactionInterop.GetOletxTransactionFromTransmitterPropigationToken(propagationToken);
// If a transaction is found then FindOrCreate will Dispose the oletx
// created.
returnValue = TransactionManager.FindOrCreatePromotedTransaction(txId, oleTx);
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetTransactionFromTransmitterPropagationToken"
);
}
return(returnValue);
}
