public TransactionScope(
TransactionScopeOption scopeOption,
TimeSpan scopeTimeout,
TransactionScopeAsyncFlowOption asyncFlowOption
)
{
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.MethodEnter(TraceSourceType.TraceSourceBase, this);
}
ValidateScopeTimeout(nameof(scopeTimeout), scopeTimeout);
TimeSpan txTimeout = TransactionManager.ValidateTimeout(scopeTimeout);
ValidateAndSetAsyncFlowOption(asyncFlowOption);
if (NeedToCreateTransaction(scopeOption))
{
_committableTransaction = new CommittableTransaction(txTimeout);
_expectedCurrent = _committableTransaction.Clone();
}
if ((null != _expectedCurrent) && (null == _committableTransaction) && (TimeSpan.Zero != scopeTimeout))
{
// BUGBUG: Scopes should not use individual timers
_scopeTimer = new Timer(
TimerCallback,
this,
scopeTimeout,
TimeSpan.Zero);
}
if (null == _expectedCurrent)
{
if (etwLog.IsEnabled())
{
etwLog.TransactionScopeCreated(TransactionTraceIdentifier.Empty, TransactionScopeResult.NoTransaction);
}
}
else
{
TransactionScopeResult scopeResult;
if (null == _committableTransaction)
{
scopeResult = TransactionScopeResult.UsingExistingCurrent;
}
else
{
scopeResult = TransactionScopeResult.CreatedTransaction;
}
if (etwLog.IsEnabled())
{
etwLog.TransactionScopeCreated(_expectedCurrent.TransactionTraceId, scopeResult);
}
}
PushScope();
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceBase, this);
}
}
public TransactionScope(
TransactionScopeOption scopeOption,
TransactionOptions transactionOptions,
EnterpriseServicesInteropOption interopOption)
{
TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
if (etwLog.IsEnabled())
{
etwLog.MethodEnter(TraceSourceType.TraceSourceBase, this);
}
ValidateScopeTimeout("transactionOptions.Timeout", transactionOptions.Timeout);
TimeSpan scopeTimeout = transactionOptions.Timeout;
transactionOptions.Timeout = TransactionManager.ValidateTimeout(transactionOptions.Timeout);
TransactionManager.ValidateIsolationLevel(transactionOptions.IsolationLevel);
ValidateInteropOption(interopOption);
_interopModeSpecified = true;
_interopOption = interopOption;
if (NeedToCreateTransaction(scopeOption))
{
_committableTransaction = new CommittableTransaction(transactionOptions);
_expectedCurrent = _committableTransaction.Clone();
}
else
{
if (null != _expectedCurrent)
{
// If the requested IsolationLevel is stronger than that of the specified transaction, throw.
if ((IsolationLevel.Unspecified != transactionOptions.IsolationLevel) && (_expectedCurrent.IsolationLevel != transactionOptions.IsolationLevel))
{
throw new ArgumentException(SR.TransactionScopeIsolationLevelDifferentFromTransaction, nameof(transactionOptions));
}
}
}
if ((null != _expectedCurrent) && (null == _committableTransaction) && (TimeSpan.Zero != scopeTimeout))
{
// BUGBUG: Scopes should use a shared timer
_scopeTimer = new Timer(
TimerCallback,
this,
scopeTimeout,
TimeSpan.Zero);
}
if (null == _expectedCurrent)
{
if (etwLog.IsEnabled())
{
etwLog.TransactionScopeCreated(TransactionTraceIdentifier.Empty, TransactionScopeResult.NoTransaction);
}
}
else
{
TransactionScopeResult scopeResult;
if (null == _committableTransaction)
{
scopeResult = TransactionScopeResult.UsingExistingCurrent;
}
else
{
scopeResult = TransactionScopeResult.CreatedTransaction;
}
if (etwLog.IsEnabled())
{
etwLog.TransactionScopeCreated(_expectedCurrent.TransactionTraceId, scopeResult);
}
}
PushScope();
if (etwLog.IsEnabled())
{
etwLog.MethodExit(TraceSourceType.TraceSourceBase, this);
}
}
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);
}
static public Enlistment Reenlist(
Guid resourceManagerIdentifier,
byte[] recoveryInformation,
IEnlistmentNotification enlistmentNotification
)
{
if (resourceManagerIdentifier == Guid.Empty)
{
throw new ArgumentException(SR.GetString(SR.BadResourceManagerId), "resourceManagerIdentifier");
}
if (null == recoveryInformation)
{
throw new ArgumentNullException("recoveryInformation");
}
if (null == enlistmentNotification)
{
throw new ArgumentNullException("enlistmentNotification");
}
if (!TransactionManager._platformValidated)
{
TransactionManager.ValidatePlatform();
}
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
"TransactionManager.Reenlist"
);
}
if (DiagnosticTrace.Information)
{
ReenlistTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
resourceManagerIdentifier
);
}
// Put the recovery information into a stream.
MemoryStream stream = new MemoryStream(recoveryInformation);
int recoveryInformationVersion = 0;
string nodeName = null;
byte[] resourceManagerRecoveryInformation = null;
try
{
BinaryReader reader = new BinaryReader(stream);
recoveryInformationVersion = reader.ReadInt32();
if (recoveryInformationVersion == TransactionManager.recoveryInformationVersion1)
{
nodeName = reader.ReadString();
resourceManagerRecoveryInformation = reader.ReadBytes(recoveryInformation.Length - checked ((int)stream.Position));
}
else
{
if (DiagnosticTrace.Error)
{
TransactionExceptionTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
SR.GetString(SR.UnrecognizedRecoveryInformation)
);
}
throw new ArgumentException(SR.GetString(SR.UnrecognizedRecoveryInformation), "recoveryInformation");
}
}
catch (System.IO.EndOfStreamException e)
{
if (DiagnosticTrace.Error)
{
TransactionExceptionTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
SR.GetString(SR.UnrecognizedRecoveryInformation)
);
}
throw new ArgumentException(SR.GetString(SR.UnrecognizedRecoveryInformation), "recoveryInformation", e);
}
catch (System.FormatException e)
{
if (DiagnosticTrace.Error)
{
TransactionExceptionTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
SR.GetString(SR.UnrecognizedRecoveryInformation)
);
}
throw new ArgumentException(SR.GetString(SR.UnrecognizedRecoveryInformation), "recoveryInformation", e);
}
finally
{
stream.Close();
}
Oletx.OletxTransactionManager transactionManager = CheckTransactionManager(nodeName);
// Now ask the Transaction Manager to reenlist.
object syncRoot = new object();
Enlistment returnValue = new Enlistment(enlistmentNotification, syncRoot);
EnlistmentState._EnlistmentStatePromoted.EnterState(returnValue.InternalEnlistment);
returnValue.InternalEnlistment.PromotedEnlistment =
transactionManager.ReenlistTransaction(
resourceManagerIdentifier,
resourceManagerRecoveryInformation,
(RecoveringInternalEnlistment)returnValue.InternalEnlistment
);
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
"TransactionManager.Reenlist"
);
}
return(returnValue);
}
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);
}
