|
static private FindOrCreatePromotedTransaction ( Guid transactionIdentifier, DistributedTransaction dtx ) : |
||
| transactionIdentifier | Guid | |
| dtx | DistributedTransaction | |
| return | ||
public static Transaction GetTransactionFromExportCookie(byte[] cookie)
{
if (null == cookie)
{
throw new ArgumentNullException(nameof(cookie));
}
if (cookie.Length < 32)
{
throw new ArgumentException(SR.InvalidArgument, nameof(cookie));
}
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.MethodEnter(TraceSourceType.TraceSourceDistributed, "TransactionInterop.GetTransactionFromExportCookie");
}
var cookieCopy = new byte[cookie.Length];
Buffer.BlockCopy(cookie, 0, cookieCopy, 0, cookie.Length);
cookie = cookieCopy;
// 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 transaction = TransactionManager.FindPromotedTransaction(txId);
if (transaction != null)
{
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceDistributed, "TransactionInterop.GetTransactionFromExportCookie");
}
return(transaction);
}
// Find or create the promoted transaction.
DistributedTransaction dTx = DistributedTransactionManager.GetTransactionFromExportCookie(cookieCopy, txId);
transaction = TransactionManager.FindOrCreatePromotedTransaction(txId, dTx);
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceDistributed, "TransactionInterop.GetTransactionFromExportCookie");
}
return(transaction);
}
public static Transaction GetTransactionFromTransmitterPropagationToken(byte[] propagationToken)
{
if (null == propagationToken)
{
throw new ArgumentNullException(nameof(propagationToken));
}
if (propagationToken.Length < 24)
{
throw new ArgumentException(SR.InvalidArgument, nameof(propagationToken));
}
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.MethodEnter(TraceSourceType.TraceSourceDistributed, "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];
}
var 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 (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceDistributed, "TransactionInterop.GetTransactionFromTransmitterPropagationToken");
}
return(tx);
}
DistributedTransaction dTx = GetDistributedTransactionFromTransmitterPropagationToken(propagationToken);
// If a transaction is found then FindOrCreate will Dispose the distributed transaction created.
Transaction returnValue = TransactionManager.FindOrCreatePromotedTransaction(txId, dTx);
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceDistributed, "TransactionInterop.GetTransactionFromTransmitterPropagationToken");
}
return(returnValue);
}
public static Transaction GetTransactionFromExportCookie(byte[] cookie)
{
ArgumentNullException.ThrowIfNull(cookie);
if (cookie.Length < 32)
{
throw new ArgumentException(SR.InvalidArgument, nameof(cookie));
}
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.MethodEnter(TraceSourceType.TraceSourceOleTx, "TransactionInterop.GetTransactionFromExportCookie");
}
var cookieCopy = new byte[cookie.Length];
Buffer.BlockCopy(cookie, 0, cookieCopy, 0, cookie.Length);
cookie = cookieCopy;
// Extract the transaction guid from the propagation token to see if we already have a
// transaction object for the transaction.
// In a cookie, the transaction guid is preceded by a signature guid.
var txId = new Guid(cookie.AsSpan(16, 16));
// First check to see if there is a promoted LTM transaction with the same ID. If there
// is, just return that.
Transaction?transaction = TransactionManager.FindPromotedTransaction(txId);
if (transaction != null)
{
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceOleTx, "TransactionInterop.GetTransactionFromExportCookie");
}
return(transaction);
}
// Find or create the promoted transaction.
OletxTransaction dTx = OletxTransactionManager.GetTransactionFromExportCookie(cookieCopy, txId);
transaction = TransactionManager.FindOrCreatePromotedTransaction(txId, dTx);
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceOleTx, "TransactionInterop.GetTransactionFromExportCookie");
}
return(transaction);
}
public static Transaction GetTransactionFromTransmitterPropagationToken(byte[] propagationToken)
{
ArgumentNullException.ThrowIfNull(propagationToken);
if (propagationToken.Length < 24)
{
throw new ArgumentException(SR.InvalidArgument, nameof(propagationToken));
}
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.MethodEnter(TraceSourceType.TraceSourceOleTx, "TransactionInterop.GetTransactionFromTransmitterPropagationToken");
}
// Extract the transaction guid from the propagation token to see if we already have a
// transaction object for the transaction.
// In a propagation token, the transaction guid is preceded by two version DWORDs.
var txId = new Guid(propagationToken.AsSpan(8, 16));
// 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 (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceOleTx, "TransactionInterop.GetTransactionFromTransmitterPropagationToken");
}
return(tx);
}
OletxTransaction dTx = GetOletxTransactionFromTransmitterPropagationToken(propagationToken);
// If a transaction is found then FindOrCreate will Dispose the distributed transaction created.
Transaction returnValue = TransactionManager.FindOrCreatePromotedTransaction(txId, dTx);
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceOleTx, "TransactionInterop.GetTransactionFromTransmitterPropagationToken");
}
return(returnValue);
}
public static Transaction GetTransactionFromTransmitterPropagationToken(byte[] propagationToken)
{
if (!TransactionManager._platformValidated)
{
TransactionManager.ValidatePlatform();
}
Transaction transaction2 = null;
if (propagationToken == null)
{
throw new ArgumentNullException("propagationToken");
}
if (propagationToken.Length < 0x18)
{
throw new ArgumentException(System.Transactions.SR.GetString("InvalidArgument"), "propagationToken");
}
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "TransactionInterop.GetTransactionFromTransmitterPropagationToken");
}
byte[] b = new byte[0x10];
for (int i = 0; i < b.Length; i++)
{
b[i] = propagationToken[i + 8];
}
Guid transactionIdentifier = new Guid(b);
Transaction transaction = TransactionManager.FindPromotedTransaction(transactionIdentifier);
if (null != transaction)
{
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "TransactionInterop.GetTransactionFromTransmitterPropagationToken");
}
return(transaction);
}
OletxTransaction oletxTransactionFromTransmitterPropigationToken = GetOletxTransactionFromTransmitterPropigationToken(propagationToken);
transaction2 = TransactionManager.FindOrCreatePromotedTransaction(transactionIdentifier, oletxTransactionFromTransmitterPropigationToken);
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "TransactionInterop.GetTransactionFromTransmitterPropagationToken");
}
return(transaction2);
}
public static Transaction GetTransactionFromExportCookie(byte[] cookie)
{
ArgumentNullException.ThrowIfNull(cookie);
if (cookie.Length < 32)
{
throw new ArgumentException(SR.InvalidArgument, nameof(cookie));
}
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.MethodEnter(TraceSourceType.TraceSourceOleTx, $"{nameof(TransactionInterop)}.{nameof(GetTransactionFromExportCookie)}");
}
var cookieCopy = new byte[cookie.Length];
Buffer.BlockCopy(cookie, 0, cookieCopy, 0, cookie.Length);
cookie = cookieCopy;
Transaction? transaction;
TransactionShim?transactionShim = null;
Guid txIdentifier = Guid.Empty;
OletxTransactionIsolationLevel oletxIsoLevel = OletxTransactionIsolationLevel.ISOLATIONLEVEL_SERIALIZABLE;
OutcomeEnlistment?outcomeEnlistment;
OletxTransaction? oleTx;
// Extract the transaction guid from the propagation token to see if we already have a
// transaction object for the transaction.
// In a cookie, the transaction guid is preceded by a signature guid.
var txId = new Guid(cookie.AsSpan(16, 16));
// 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 (transaction != null)
{
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.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();
oletxTm.DtcTransactionManager.ProxyShimFactory.Import(cookie, outcomeEnlistment, out txIdentifier, out oletxIsoLevel, out transactionShim);
}
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.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 (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceOleTx, $"{nameof(TransactionInterop)}.{nameof(GetTransactionFromExportCookie)}");
}
return(transaction);
}
public static Transaction GetTransactionFromDtcTransaction(IDtcTransaction transactionNative)
{
ArgumentNullException.ThrowIfNull(transactionNative, nameof(transactionNative));
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.MethodEnter(TraceSourceType.TraceSourceOleTx, $"{nameof(TransactionInterop)}.{nameof(GetTransactionFromDtcTransaction)}");
}
Transaction? transaction = null;
bool tooLate = false;
TransactionShim?transactionShim = null;
Guid txIdentifier = Guid.Empty;
OletxTransactionIsolationLevel oletxIsoLevel = OletxTransactionIsolationLevel.ISOLATIONLEVEL_SERIALIZABLE;
OutcomeEnlistment? outcomeEnlistment = null;
RealOletxTransaction?realTx = null;
OletxTransaction? oleTx = null;
// Let's get the guid of the transaction from the proxy to see if we already have an object.
if (transactionNative is not ITransaction myTransactionNative)
{
throw new ArgumentException(SR.InvalidArgument, nameof(transactionNative));
}
OletxXactTransInfo xactInfo;
try
{
myTransactionNative.GetTransactionInfo(out xactInfo);
}
catch (COMException ex) when(ex.ErrorCode == OletxHelper.XACT_E_NOTRANSACTION)
{
// 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 (transaction != null)
{
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceOleTx, $"{nameof(TransactionInterop)}.{nameof(GetTransactionFromDtcTransaction)}");
}
return(transaction);
}
// We need to create a new RealOletxTransaction...
oletxTm.DtcTransactionManagerLock.AcquireReaderLock(-1);
try
{
outcomeEnlistment = new OutcomeEnlistment();
oletxTm.DtcTransactionManager.ProxyShimFactory.CreateTransactionShim(
transactionNative,
outcomeEnlistment,
out txIdentifier,
out oletxIsoLevel,
out transactionShim);
}
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 (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceOleTx, $"{nameof(TransactionInterop)}.{nameof(GetTransactionFromDtcTransaction)}");
}
return(transaction);
}
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);
}
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);
}
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);
}
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);
}
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);
}