示例#1
0
        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);
        }
示例#2
0
        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);
        }
示例#3
0
        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);
        }
示例#4
0
        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);
        }
示例#5
0
        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);
        }