Beispiel #1
0
        internal static OletxTransaction GetOletxTransactionFromTransmitterPropigationToken(byte[] propagationToken)
        {
            OutcomeEnlistment enlistment;
            ITransactionShim  transactionShim = null;
            OletxTransactionIsolationLevel level;
            Guid guid;

            if (propagationToken == null)
            {
                throw new ArgumentNullException("propagationToken");
            }
            if (propagationToken.Length < 0x18)
            {
                throw new ArgumentException(System.Transactions.SR.GetString("InvalidArgument"), "propagationToken");
            }
            byte[] destinationArray = new byte[propagationToken.Length];
            Array.Copy(propagationToken, destinationArray, propagationToken.Length);
            propagationToken = destinationArray;
            OletxTransactionManager distributedTransactionManager = TransactionManager.DistributedTransactionManager;

            distributedTransactionManager.dtcTransactionManagerLock.AcquireReaderLock(-1);
            try
            {
                enlistment = new OutcomeEnlistment();
                IntPtr zero = IntPtr.Zero;
                RuntimeHelpers.PrepareConstrainedRegions();
                try
                {
                    zero = HandleTable.AllocHandle(enlistment);
                    distributedTransactionManager.DtcTransactionManager.ProxyShimFactory.ReceiveTransaction(Convert.ToUInt32(propagationToken.Length), propagationToken, zero, out guid, out level, out transactionShim);
                }
                finally
                {
                    if ((transactionShim == null) && (zero != IntPtr.Zero))
                    {
                        HandleTable.FreeHandle(zero);
                    }
                }
            }
            catch (COMException exception)
            {
                OletxTransactionManager.ProxyException(exception);
                throw TransactionManagerCommunicationException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
            }
            finally
            {
                distributedTransactionManager.dtcTransactionManagerLock.ReleaseReaderLock();
            }
            return(new OletxTransaction(new RealOletxTransaction(distributedTransactionManager, transactionShim, enlistment, guid, level, false)));
        }
Beispiel #2
0
        public static Transaction GetTransactionFromDtcTransaction(
            IDtcTransaction transactionNative
            )
        {
            if (!TransactionManager._platformValidated)
            {
                TransactionManager.ValidatePlatform();
            }

            bool             tooLate                     = false;
            ITransactionShim transactionShim             = null;
            Guid             txIdentifier                = Guid.Empty;
            OletxTransactionIsolationLevel oletxIsoLevel = OletxTransactionIsolationLevel.ISOLATIONLEVEL_SERIALIZABLE;
            OutcomeEnlistment    outcomeEnlistment       = null;
            RealOletxTransaction realTx                  = null;
            OletxTransaction     oleTx                   = null;

            if (null == transactionNative)
            {
                throw new ArgumentNullException("transactionNative");
            }

            Transaction transaction = null;

            if (DiagnosticTrace.Verbose)
            {
                MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
                                               "TransactionInterop.GetTransactionFromDtc"
                                               );
            }

            // Let's get the guid of the transaction from the proxy to see if we already
            // have an object.
            ITransactionNativeInternal myTransactionNative = transactionNative as ITransactionNativeInternal;

            if (null == myTransactionNative)
            {
                throw new ArgumentException(SR.GetString(SR.InvalidArgument), "transactionNative");
            }

            OletxXactTransInfo xactInfo;

            try
            {
                myTransactionNative.GetTransactionInfo(out xactInfo);
            }
            catch (COMException ex)
            {
                if (Oletx.NativeMethods.XACT_E_NOTRANSACTION != ex.ErrorCode)
                {
                    throw;
                }

                // If we get here, the transaction has appraently already been committed or aborted.  Allow creation of the
                // OletxTransaction, but it will be marked with a status of InDoubt and attempts to get its Identifier
                // property will result in a TransactionException.
                tooLate      = true;
                xactInfo.uow = Guid.Empty;
            }

            OletxTransactionManager oletxTm = TransactionManager.DistributedTransactionManager;

            if (!tooLate)
            {
                // First check to see if there is a promoted LTM transaction with the same ID.  If there
                // is, just return that.
                transaction = TransactionManager.FindPromotedTransaction(xactInfo.uow);
                if (null != transaction)
                {
                    if (DiagnosticTrace.Verbose)
                    {
                        MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
                                                      "TransactionInterop.GetTransactionFromDtcTransaction"
                                                      );
                    }
                    return(transaction);
                }

                // We need to create a new RealOletxTransaction...
                oletxTm.dtcTransactionManagerLock.AcquireReaderLock(-1);
                try
                {
                    outcomeEnlistment = new OutcomeEnlistment();
                    IntPtr outcomeEnlistmentHandle = IntPtr.Zero;
                    RuntimeHelpers.PrepareConstrainedRegions();
                    try
                    {
                        outcomeEnlistmentHandle = HandleTable.AllocHandle(outcomeEnlistment);
                        oletxTm.DtcTransactionManager.ProxyShimFactory.CreateTransactionShim(
                            transactionNative,
                            outcomeEnlistmentHandle,
                            out txIdentifier,
                            out oletxIsoLevel,
                            out transactionShim);
                    }
                    finally
                    {
                        if (transactionShim == null && outcomeEnlistmentHandle != IntPtr.Zero)
                        {
                            HandleTable.FreeHandle(outcomeEnlistmentHandle);
                        }
                    }
                }
                catch (COMException comException)
                {
                    OletxTransactionManager.ProxyException(comException);
                    throw;
                }
                finally
                {
                    oletxTm.dtcTransactionManagerLock.ReleaseReaderLock();
                }

                // We need to create a new RealOletxTransaction.
                realTx = new RealOletxTransaction(
                    oletxTm,
                    transactionShim,
                    outcomeEnlistment,
                    txIdentifier,
                    oletxIsoLevel,
                    false);

                oleTx = new OletxTransaction(realTx);

                // If a transaction is found then FindOrCreate will Dispose the oletx
                // created.
                transaction = TransactionManager.FindOrCreatePromotedTransaction(xactInfo.uow, oleTx);
            }
            else
            {
                // It was too late to do a clone of the provided ITransactionNative, so we are just going to
                // create a RealOletxTransaction without a transaction shim or outcome enlistment.
                realTx = new RealOletxTransaction(
                    oletxTm,
                    null,
                    null,
                    txIdentifier,
                    OletxTransactionIsolationLevel.ISOLATIONLEVEL_SERIALIZABLE,
                    false);

                oleTx       = new OletxTransaction(realTx);
                transaction = new Transaction(oleTx);
                TransactionManager.FireDistributedTransactionStarted(transaction);
                oleTx.savedLtmPromotedTransaction = transaction;

                InternalTransaction.DistributedTransactionOutcome(transaction.internalTransaction, TransactionStatus.InDoubt);
            }


            if (DiagnosticTrace.Verbose)
            {
                MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
                                              "TransactionInterop.GetTransactionFromDtc"
                                              );
            }
            return(transaction);
        }
Beispiel #3
0
        internal static OletxTransaction GetOletxTransactionFromTransmitterPropigationToken(
            byte[] propagationToken
            )
        {
            Guid identifier;
            OletxTransactionIsolationLevel oletxIsoLevel;
            OutcomeEnlistment outcomeEnlistment;
            ITransactionShim  transactionShim = null;

            if (null == propagationToken)
            {
                throw new ArgumentNullException("propagationToken");
            }

            if (propagationToken.Length < 24)
            {
                throw new ArgumentException(SR.GetString(SR.InvalidArgument), "propagationToken");
            }

            byte[] propagationTokenCopy = new byte[propagationToken.Length];
            Array.Copy(propagationToken, propagationTokenCopy, propagationToken.Length);
            propagationToken = propagationTokenCopy;

            // First we need to create an OletxTransactionManager from Config.
            OletxTransactionManager oletxTm = TransactionManager.DistributedTransactionManager;

            oletxTm.dtcTransactionManagerLock.AcquireReaderLock(-1);
            try
            {
                outcomeEnlistment = new OutcomeEnlistment();
                IntPtr outcomeEnlistmentHandle = IntPtr.Zero;
                RuntimeHelpers.PrepareConstrainedRegions();
                try
                {
                    outcomeEnlistmentHandle = HandleTable.AllocHandle(outcomeEnlistment);
                    oletxTm.DtcTransactionManager.ProxyShimFactory.ReceiveTransaction(
                        Convert.ToUInt32(propagationToken.Length),
                        propagationToken,
                        outcomeEnlistmentHandle,
                        out identifier,
                        out oletxIsoLevel,
                        out transactionShim
                        );
                }
                finally
                {
                    if (transactionShim == null && outcomeEnlistmentHandle != IntPtr.Zero)
                    {
                        HandleTable.FreeHandle(outcomeEnlistmentHandle);
                    }
                }
            }
            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
            {
                oletxTm.dtcTransactionManagerLock.ReleaseReaderLock();
            }

            RealOletxTransaction realTx = null;

            realTx = new RealOletxTransaction(
                oletxTm,
                transactionShim,
                outcomeEnlistment,
                identifier,
                oletxIsoLevel,
                false);

            return(new OletxTransaction(realTx));
        }
Beispiel #4
0
        public static Transaction GetTransactionFromExportCookie(
            byte[] cookie
            )
        {
            if (!TransactionManager._platformValidated)
            {
                TransactionManager.ValidatePlatform();
            }

            if (null == cookie)
            {
                throw new ArgumentNullException("cookie");
            }

            if (cookie.Length < 32)
            {
                throw new ArgumentException(SR.GetString(SR.InvalidArgument), "cookie");
            }

            if (DiagnosticTrace.Verbose)
            {
                MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
                                               "TransactionInterop.GetTransactionFromExportCookie"
                                               );
            }

            byte[] cookieCopy = new byte[cookie.Length];
            Array.Copy(cookie, cookieCopy, cookie.Length);
            cookie = cookieCopy;

            Transaction      transaction                 = null;
            ITransactionShim transactionShim             = null;
            Guid             txIdentifier                = Guid.Empty;
            OletxTransactionIsolationLevel oletxIsoLevel = OletxTransactionIsolationLevel.ISOLATIONLEVEL_SERIALIZABLE;
            OutcomeEnlistment outcomeEnlistment          = null;
            OletxTransaction  oleTx = null;

            // 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 cookie, the transaction guid is preceeded by a signature guid.
                guidByteArray[i] = cookie[i + 16];
            }

            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 = TransactionManager.FindPromotedTransaction(txId);
            if (null != transaction)
            {
                if (DiagnosticTrace.Verbose)
                {
                    MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
                                                  "TransactionInterop.GetTransactionFromExportCookie"
                                                  );
                }
                return(transaction);
            }

            // We need to create a new transaction
            RealOletxTransaction    realTx  = null;
            OletxTransactionManager oletxTm = TransactionManager.DistributedTransactionManager;

            oletxTm.dtcTransactionManagerLock.AcquireReaderLock(-1);
            try
            {
                outcomeEnlistment = new OutcomeEnlistment();
                IntPtr outcomeEnlistmentHandle = IntPtr.Zero;
                RuntimeHelpers.PrepareConstrainedRegions();
                try
                {
                    outcomeEnlistmentHandle = HandleTable.AllocHandle(outcomeEnlistment);
                    oletxTm.DtcTransactionManager.ProxyShimFactory.Import(
                        Convert.ToUInt32(cookie.Length),
                        cookie,
                        outcomeEnlistmentHandle,
                        out txIdentifier,
                        out oletxIsoLevel,
                        out transactionShim);
                }
                finally
                {
                    if (transactionShim == null && outcomeEnlistmentHandle != IntPtr.Zero)
                    {
                        HandleTable.FreeHandle(outcomeEnlistmentHandle);
                    }
                }
            }
            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
            {
                oletxTm.dtcTransactionManagerLock.ReleaseReaderLock();
            }

            // We need to create a new RealOletxTransaction.
            realTx = new RealOletxTransaction(
                oletxTm,
                transactionShim,
                outcomeEnlistment,
                txIdentifier,
                oletxIsoLevel,
                false);

            // Now create the associated OletxTransaction.
            oleTx = new OletxTransaction(realTx);

            // If a transaction is found then FindOrCreate will Dispose the oletx
            // created.
            transaction = TransactionManager.FindOrCreatePromotedTransaction(txId, oleTx);

            if (DiagnosticTrace.Verbose)
            {
                MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
                                              "TransactionInterop.GetTransactionFromExportCookie"
                                              );
            }

            return(transaction);
        }
Beispiel #5
0
        public static Transaction GetTransactionFromExportCookie(byte[] cookie)
        {
            if (!TransactionManager._platformValidated)
            {
                TransactionManager.ValidatePlatform();
            }
            if (cookie == null)
            {
                throw new ArgumentNullException("cookie");
            }
            if (cookie.Length < 0x20)
            {
                throw new ArgumentException(System.Transactions.SR.GetString("InvalidArgument"), "cookie");
            }
            if (DiagnosticTrace.Verbose)
            {
                MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "TransactionInterop.GetTransactionFromExportCookie");
            }
            byte[] destinationArray = new byte[cookie.Length];
            Array.Copy(cookie, destinationArray, cookie.Length);
            cookie = destinationArray;
            Transaction      transaction     = null;
            ITransactionShim transactionShim = null;
            Guid             empty           = Guid.Empty;
            OletxTransactionIsolationLevel isolationLevel = OletxTransactionIsolationLevel.ISOLATIONLEVEL_SERIALIZABLE;
            OutcomeEnlistment target = null;
            OletxTransaction  oletx  = null;

            byte[] b = new byte[0x10];
            for (int i = 0; i < b.Length; i++)
            {
                b[i] = cookie[i + 0x10];
            }
            Guid transactionIdentifier = new Guid(b);

            transaction = TransactionManager.FindPromotedTransaction(transactionIdentifier);
            if (null != transaction)
            {
                if (DiagnosticTrace.Verbose)
                {
                    MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "TransactionInterop.GetTransactionFromExportCookie");
                }
                return(transaction);
            }
            RealOletxTransaction    realOletxTransaction          = null;
            OletxTransactionManager distributedTransactionManager = TransactionManager.DistributedTransactionManager;

            distributedTransactionManager.dtcTransactionManagerLock.AcquireReaderLock(-1);
            try
            {
                target = new OutcomeEnlistment();
                IntPtr zero = IntPtr.Zero;
                RuntimeHelpers.PrepareConstrainedRegions();
                try
                {
                    zero = HandleTable.AllocHandle(target);
                    distributedTransactionManager.DtcTransactionManager.ProxyShimFactory.Import(Convert.ToUInt32(cookie.Length), cookie, zero, out empty, out isolationLevel, out transactionShim);
                }
                finally
                {
                    if ((transactionShim == null) && (zero != IntPtr.Zero))
                    {
                        HandleTable.FreeHandle(zero);
                    }
                }
            }
            catch (COMException exception)
            {
                OletxTransactionManager.ProxyException(exception);
                throw TransactionManagerCommunicationException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
            }
            finally
            {
                distributedTransactionManager.dtcTransactionManagerLock.ReleaseReaderLock();
            }
            realOletxTransaction = new RealOletxTransaction(distributedTransactionManager, transactionShim, target, empty, isolationLevel, false);
            oletx       = new OletxTransaction(realOletxTransaction);
            transaction = TransactionManager.FindOrCreatePromotedTransaction(transactionIdentifier, oletx);
            if (DiagnosticTrace.Verbose)
            {
                MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "TransactionInterop.GetTransactionFromExportCookie");
            }
            return(transaction);
        }
Beispiel #6
0
        public static Transaction GetTransactionFromDtcTransaction(IDtcTransaction transactionNative)
        {
            OletxXactTransInfo info;

            if (!TransactionManager._platformValidated)
            {
                TransactionManager.ValidatePlatform();
            }
            bool             flag            = false;
            ITransactionShim transactionShim = null;
            Guid             empty           = Guid.Empty;
            OletxTransactionIsolationLevel isolationLevel = OletxTransactionIsolationLevel.ISOLATIONLEVEL_SERIALIZABLE;
            OutcomeEnlistment    target = null;
            RealOletxTransaction realOletxTransaction = null;
            OletxTransaction     oletx = null;

            if (transactionNative == null)
            {
                throw new ArgumentNullException("transactionNative");
            }
            Transaction transaction = null;

            if (DiagnosticTrace.Verbose)
            {
                MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "TransactionInterop.GetTransactionFromDtc");
            }
            ITransactionNativeInternal internal2 = transactionNative as ITransactionNativeInternal;

            if (internal2 == null)
            {
                throw new ArgumentException(System.Transactions.SR.GetString("InvalidArgument"), "transactionNative");
            }
            try
            {
                internal2.GetTransactionInfo(out info);
            }
            catch (COMException exception2)
            {
                if (System.Transactions.Oletx.NativeMethods.XACT_E_NOTRANSACTION != exception2.ErrorCode)
                {
                    throw;
                }
                flag     = true;
                info.uow = Guid.Empty;
            }
            OletxTransactionManager distributedTransactionManager = TransactionManager.DistributedTransactionManager;

            if (!flag)
            {
                transaction = TransactionManager.FindPromotedTransaction(info.uow);
                if (null != transaction)
                {
                    if (DiagnosticTrace.Verbose)
                    {
                        MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "TransactionInterop.GetTransactionFromDtcTransaction");
                    }
                    return(transaction);
                }
                distributedTransactionManager.dtcTransactionManagerLock.AcquireReaderLock(-1);
                try
                {
                    target = new OutcomeEnlistment();
                    IntPtr zero = IntPtr.Zero;
                    RuntimeHelpers.PrepareConstrainedRegions();
                    try
                    {
                        zero = HandleTable.AllocHandle(target);
                        distributedTransactionManager.DtcTransactionManager.ProxyShimFactory.CreateTransactionShim(transactionNative, zero, out empty, out isolationLevel, out transactionShim);
                    }
                    finally
                    {
                        if ((transactionShim == null) && (zero != IntPtr.Zero))
                        {
                            HandleTable.FreeHandle(zero);
                        }
                    }
                }
                catch (COMException exception)
                {
                    OletxTransactionManager.ProxyException(exception);
                    throw;
                }
                finally
                {
                    distributedTransactionManager.dtcTransactionManagerLock.ReleaseReaderLock();
                }
                realOletxTransaction = new RealOletxTransaction(distributedTransactionManager, transactionShim, target, empty, isolationLevel, false);
                oletx       = new OletxTransaction(realOletxTransaction);
                transaction = TransactionManager.FindOrCreatePromotedTransaction(info.uow, oletx);
            }
            else
            {
                realOletxTransaction = new RealOletxTransaction(distributedTransactionManager, null, null, empty, OletxTransactionIsolationLevel.ISOLATIONLEVEL_SERIALIZABLE, false);
                oletx       = new OletxTransaction(realOletxTransaction);
                transaction = new Transaction(oletx);
                TransactionManager.FireDistributedTransactionStarted(transaction);
                oletx.savedLtmPromotedTransaction = transaction;
                InternalTransaction.DistributedTransactionOutcome(transaction.internalTransaction, TransactionStatus.InDoubt);
            }
            if (DiagnosticTrace.Verbose)
            {
                MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "TransactionInterop.GetTransactionFromDtc");
            }
            return(transaction);
        }