internal OletxCommittableTransaction CreateTransaction(TransactionOptions properties)
{
OletxCommittableTransaction transaction = null;
ITransactionShim transactionShim = null;
RealOletxTransaction realOletxTransaction = null;
Guid empty = Guid.Empty;
OutcomeEnlistment target = null;
new DistributedTransactionPermission(PermissionState.Unrestricted).Demand();
TransactionManager.ValidateIsolationLevel(properties.IsolationLevel);
if (IsolationLevel.Unspecified == properties.IsolationLevel)
{
properties.IsolationLevel = this.configuredTransactionOptions.IsolationLevel;
}
properties.Timeout = TransactionManager.ValidateTimeout(properties.Timeout);
this.dtcTransactionManagerLock.AcquireReaderLock(-1);
try
{
OletxTransactionIsolationLevel isolationLevel = ConvertIsolationLevel(properties.IsolationLevel);
uint timeout = System.Transactions.Oletx.DtcTransactionManager.AdjustTimeout(properties.Timeout);
target = new OutcomeEnlistment();
IntPtr zero = IntPtr.Zero;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
zero = HandleTable.AllocHandle(target);
this.dtcTransactionManager.ProxyShimFactory.BeginTransaction(timeout, isolationLevel, zero, out empty, out transactionShim);
}
catch (COMException exception)
{
ProxyException(exception);
throw;
}
finally
{
if ((transactionShim == null) && (zero != IntPtr.Zero))
{
HandleTable.FreeHandle(zero);
}
}
realOletxTransaction = new RealOletxTransaction(this, transactionShim, target, empty, isolationLevel, true);
transaction = new OletxCommittableTransaction(realOletxTransaction);
if (DiagnosticTrace.Information)
{
TransactionCreatedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), transaction.TransactionTraceId);
}
}
finally
{
this.dtcTransactionManagerLock.ReleaseReaderLock();
}
return(transaction);
}
internal RealOletxTransaction(OletxTransactionManager transactionManager, ITransactionShim transactionShim, OutcomeEnlistment outcomeEnlistment, Guid identifier, OletxTransactionIsolationLevel oletxIsoLevel, bool isRoot)
{
bool flag = false;
try
{
this.oletxTransactionManager = transactionManager;
this.transactionShim = transactionShim;
this.outcomeEnlistment = outcomeEnlistment;
this.txGuid = identifier;
this.isolationLevel = OletxTransactionManager.ConvertIsolationLevelFromProxyValue(oletxIsoLevel);
this.status = TransactionStatus.Active;
this.undisposedOletxTransactionCount = 0;
this.phase0EnlistVolatilementContainerList = null;
this.phase1EnlistVolatilementContainer = null;
this.tooLateForEnlistments = false;
this.internalTransaction = null;
this.creationTime = DateTime.UtcNow;
this.lastStateChangeTime = this.creationTime;
this.internalClone = new OletxTransaction(this);
if (this.outcomeEnlistment != null)
{
this.outcomeEnlistment.SetRealTransaction(this);
}
else
{
this.status = TransactionStatus.InDoubt;
}
if (DiagnosticTrace.HaveListeners)
{
DiagnosticTrace.TraceTransfer(this.txGuid);
}
flag = true;
}
finally
{
if (!flag && (this.outcomeEnlistment != null))
{
this.outcomeEnlistment.UnregisterOutcomeCallback();
this.outcomeEnlistment = null;
}
}
}
internal RealOletxTransaction(OletxTransactionManager transactionManager, ITransactionShim transactionShim, OutcomeEnlistment outcomeEnlistment, Guid identifier, OletxTransactionIsolationLevel oletxIsoLevel, bool isRoot)
{
bool flag = false;
try
{
this.oletxTransactionManager = transactionManager;
this.transactionShim = transactionShim;
this.outcomeEnlistment = outcomeEnlistment;
this.txGuid = identifier;
this.isolationLevel = OletxTransactionManager.ConvertIsolationLevelFromProxyValue(oletxIsoLevel);
this.status = TransactionStatus.Active;
this.undisposedOletxTransactionCount = 0;
this.phase0EnlistVolatilementContainerList = null;
this.phase1EnlistVolatilementContainer = null;
this.tooLateForEnlistments = false;
this.internalTransaction = null;
this.creationTime = DateTime.UtcNow;
this.lastStateChangeTime = this.creationTime;
this.internalClone = new OletxTransaction(this);
if (this.outcomeEnlistment != null)
{
this.outcomeEnlistment.SetRealTransaction(this);
}
else
{
this.status = TransactionStatus.InDoubt;
}
if (DiagnosticTrace.HaveListeners)
{
DiagnosticTrace.TraceTransfer(this.txGuid);
}
flag = true;
}
finally
{
if (!flag && (this.outcomeEnlistment != null))
{
this.outcomeEnlistment.UnregisterOutcomeCallback();
this.outcomeEnlistment = null;
}
}
}
internal OletxCommittableTransaction CreateTransaction(TransactionOptions properties)
{
OletxCommittableTransaction transaction = null;
ITransactionShim transactionShim = null;
RealOletxTransaction realOletxTransaction = null;
Guid empty = Guid.Empty;
OutcomeEnlistment target = null;
new DistributedTransactionPermission(PermissionState.Unrestricted).Demand();
TransactionManager.ValidateIsolationLevel(properties.IsolationLevel);
if (IsolationLevel.Unspecified == properties.IsolationLevel)
{
properties.IsolationLevel = this.configuredTransactionOptions.IsolationLevel;
}
properties.Timeout = TransactionManager.ValidateTimeout(properties.Timeout);
this.dtcTransactionManagerLock.AcquireReaderLock(-1);
try
{
OletxTransactionIsolationLevel isolationLevel = ConvertIsolationLevel(properties.IsolationLevel);
uint timeout = System.Transactions.Oletx.DtcTransactionManager.AdjustTimeout(properties.Timeout);
target = new OutcomeEnlistment();
IntPtr zero = IntPtr.Zero;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
zero = HandleTable.AllocHandle(target);
this.dtcTransactionManager.ProxyShimFactory.BeginTransaction(timeout, isolationLevel, zero, out empty, out transactionShim);
}
catch (COMException exception)
{
ProxyException(exception);
throw;
}
finally
{
if ((transactionShim == null) && (zero != IntPtr.Zero))
{
HandleTable.FreeHandle(zero);
}
}
realOletxTransaction = new RealOletxTransaction(this, transactionShim, target, empty, isolationLevel, true);
transaction = new OletxCommittableTransaction(realOletxTransaction);
if (DiagnosticTrace.Information)
{
TransactionCreatedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), transaction.TransactionTraceId);
}
}
finally
{
this.dtcTransactionManagerLock.ReleaseReaderLock();
}
return transaction;
}
internal static void ShimNotificationCallback(object state, bool timeout)
{
IntPtr zero = IntPtr.Zero;
ShimNotificationType none = ShimNotificationType.None;
bool isSinglePhase = false;
bool abortingHint = false;
uint prepareInfoSize = 0;
CoTaskMemHandle prepareInfo = null;
bool releaseRequired = false;
bool flag3 = false;
IDtcProxyShimFactory factory = null;
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxTransactionManager.ShimNotificationCallback");
}
Thread.BeginCriticalRegion();
try
{
Label_003D:
factory = proxyShimFactory;
try
{
object obj2;
OletxResourceManager manager2;
byte[] buffer;
Thread.BeginThreadAffinity();
RuntimeHelpers.PrepareConstrainedRegions();
try
{
factory.GetNotification(out zero, out none, out isSinglePhase, out abortingHint, out releaseRequired, out prepareInfoSize, out prepareInfo);
}
finally
{
if (releaseRequired)
{
if (HandleTable.FindHandle(zero) is OletxInternalResourceManager)
{
processingTmDown = true;
Monitor.Enter(proxyShimFactory);
}
else
{
releaseRequired = false;
}
factory.ReleaseNotificationLock();
}
Thread.EndThreadAffinity();
}
if (processingTmDown)
{
lock (proxyShimFactory)
{
}
}
if (none != ShimNotificationType.None)
{
obj2 = HandleTable.FindHandle(zero);
switch (none)
{
case ShimNotificationType.Phase0RequestNotify:
try
{
OletxPhase0VolatileEnlistmentContainer container5 = obj2 as OletxPhase0VolatileEnlistmentContainer;
if (container5 != null)
{
DiagnosticTrace.SetActivityId(container5.TransactionIdentifier);
container5.Phase0Request(abortingHint);
}
else
{
OletxEnlistment enlistment8 = obj2 as OletxEnlistment;
if (enlistment8 != null)
{
DiagnosticTrace.SetActivityId(enlistment8.TransactionIdentifier);
enlistment8.Phase0Request(abortingHint);
}
else
{
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
}
goto Label_0444;
}
finally
{
HandleTable.FreeHandle(zero);
}
break;
case ShimNotificationType.VoteRequestNotify:
break;
case ShimNotificationType.PrepareRequestNotify:
goto Label_02B0;
case ShimNotificationType.CommitRequestNotify:
goto Label_031A;
case ShimNotificationType.AbortRequestNotify:
goto Label_0358;
case ShimNotificationType.CommittedNotify:
try
{
OutcomeEnlistment enlistment7 = obj2 as OutcomeEnlistment;
if (enlistment7 != null)
{
DiagnosticTrace.SetActivityId(enlistment7.TransactionIdentifier);
enlistment7.Committed();
}
else
{
OletxPhase1VolatileEnlistmentContainer container3 = obj2 as OletxPhase1VolatileEnlistmentContainer;
if (container3 != null)
{
DiagnosticTrace.SetActivityId(container3.TransactionIdentifier);
container3.Committed();
}
else
{
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
}
goto Label_0444;
}
finally
{
HandleTable.FreeHandle(zero);
}
goto Label_0203;
case ShimNotificationType.AbortedNotify:
goto Label_0203;
case ShimNotificationType.InDoubtNotify:
goto Label_0251;
case ShimNotificationType.EnlistmentTmDownNotify:
goto Label_0396;
case ShimNotificationType.ResourceManagerTmDownNotify:
goto Label_03CD;
default:
goto Label_0410;
}
OletxPhase1VolatileEnlistmentContainer container4 = obj2 as OletxPhase1VolatileEnlistmentContainer;
if (container4 != null)
{
DiagnosticTrace.SetActivityId(container4.TransactionIdentifier);
container4.VoteRequest();
}
else
{
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
}
goto Label_0444;
Label_0203 :;
try
{
OutcomeEnlistment enlistment6 = obj2 as OutcomeEnlistment;
if (enlistment6 != null)
{
DiagnosticTrace.SetActivityId(enlistment6.TransactionIdentifier);
enlistment6.Aborted();
}
else
{
OletxPhase1VolatileEnlistmentContainer container2 = obj2 as OletxPhase1VolatileEnlistmentContainer;
if (container2 != null)
{
DiagnosticTrace.SetActivityId(container2.TransactionIdentifier);
container2.Aborted();
}
}
goto Label_0444;
}
finally
{
HandleTable.FreeHandle(zero);
}
Label_0251 :;
try
{
OutcomeEnlistment enlistment5 = obj2 as OutcomeEnlistment;
if (enlistment5 != null)
{
DiagnosticTrace.SetActivityId(enlistment5.TransactionIdentifier);
enlistment5.InDoubt();
}
else
{
OletxPhase1VolatileEnlistmentContainer container = obj2 as OletxPhase1VolatileEnlistmentContainer;
if (container != null)
{
DiagnosticTrace.SetActivityId(container.TransactionIdentifier);
container.InDoubt();
}
else
{
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
}
goto Label_0444;
}
finally
{
HandleTable.FreeHandle(zero);
}
Label_02B0:
buffer = new byte[prepareInfoSize];
Marshal.Copy(prepareInfo.DangerousGetHandle(), buffer, 0, Convert.ToInt32(prepareInfoSize));
bool flag2 = true;
try
{
OletxEnlistment enlistment4 = obj2 as OletxEnlistment;
if (enlistment4 != null)
{
DiagnosticTrace.SetActivityId(enlistment4.TransactionIdentifier);
flag2 = enlistment4.PrepareRequest(isSinglePhase, buffer);
}
else
{
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
goto Label_0444;
}
finally
{
if (flag2)
{
HandleTable.FreeHandle(zero);
}
}
Label_031A :;
try
{
OletxEnlistment enlistment3 = obj2 as OletxEnlistment;
if (enlistment3 != null)
{
DiagnosticTrace.SetActivityId(enlistment3.TransactionIdentifier);
enlistment3.CommitRequest();
}
else
{
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
goto Label_0444;
}
finally
{
HandleTable.FreeHandle(zero);
}
Label_0358 :;
try
{
OletxEnlistment enlistment2 = obj2 as OletxEnlistment;
if (enlistment2 != null)
{
DiagnosticTrace.SetActivityId(enlistment2.TransactionIdentifier);
enlistment2.AbortRequest();
}
else
{
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
goto Label_0444;
}
finally
{
HandleTable.FreeHandle(zero);
}
Label_0396 :;
try
{
OletxEnlistment enlistment = obj2 as OletxEnlistment;
if (enlistment != null)
{
DiagnosticTrace.SetActivityId(enlistment.TransactionIdentifier);
enlistment.TMDown();
}
else
{
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
goto Label_0444;
}
finally
{
HandleTable.FreeHandle(zero);
}
Label_03CD:
manager2 = obj2 as OletxResourceManager;
try
{
if (manager2 != null)
{
manager2.TMDown();
}
else
{
OletxInternalResourceManager manager = obj2 as OletxInternalResourceManager;
if (manager != null)
{
manager.TMDown();
}
else
{
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
}
goto Label_0444;
}
finally
{
HandleTable.FreeHandle(zero);
}
Label_0410:
Environment.FailFast(System.Transactions.SR.GetString("InternalError"));
}
finally
{
if (prepareInfo != null)
{
prepareInfo.Close();
}
if (releaseRequired)
{
releaseRequired = false;
processingTmDown = false;
Monitor.Exit(proxyShimFactory);
}
}
Label_0444:
if (none != ShimNotificationType.None)
{
goto Label_003D;
}
flag3 = true;
}
finally
{
if (releaseRequired)
{
releaseRequired = false;
processingTmDown = false;
Monitor.Exit(proxyShimFactory);
}
if (!flag3 && (zero != IntPtr.Zero))
{
HandleTable.FreeHandle(zero);
}
Thread.EndCriticalRegion();
}
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxTransactionManager.ShimNotificationCallback");
}
}
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;
}
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));
}
// Common constructor used by all types of constructors
// Create a clean and fresh transaction.
internal RealOletxTransaction(OletxTransactionManager transactionManager,
ITransactionShim transactionShim,
OutcomeEnlistment outcomeEnlistment,
Guid identifier,
OletxTransactionIsolationLevel oletxIsoLevel,
bool isRoot )
{
bool successful = false;
try
{
// initialize the member fields
this.oletxTransactionManager = transactionManager;
this.transactionShim = transactionShim;
this.outcomeEnlistment = outcomeEnlistment;
this.txGuid = identifier;
this.isolationLevel = OletxTransactionManager.ConvertIsolationLevelFromProxyValue( oletxIsoLevel );
this.status = TransactionStatus.Active;
this.undisposedOletxTransactionCount = 0;
this.phase0EnlistVolatilementContainerList = null;
this.phase1EnlistVolatilementContainer = null;
this.tooLateForEnlistments = false;
this.internalTransaction = null;
this.creationTime = DateTime.UtcNow;
this.lastStateChangeTime = this.creationTime;
// Connect this object with the OutcomeEnlistment.
this.internalClone = new OletxTransaction( this );
// We have have been created without an outcome enlistment if it was too late to create
// a clone from the ITransactionNative that we were created from.
if ( null != this.outcomeEnlistment )
{
this.outcomeEnlistment.SetRealTransaction( this );
}
else
{
this.status = TransactionStatus.InDoubt;
}
if ( DiagnosticTrace.HaveListeners )
{
DiagnosticTrace.TraceTransfer(this.txGuid);
}
successful = true;
}
finally
{
if (!successful)
{
if (this.outcomeEnlistment != null)
{
this.outcomeEnlistment.UnregisterOutcomeCallback();
this.outcomeEnlistment = null;
}
}
}
}
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;
}
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 );
}
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;
}
internal static void ShimNotificationCallback(object state, bool timeout)
{
// First we need to get the notification from the shim factory.
IntPtr enlistmentHandleIntPtr = IntPtr.Zero;
ShimNotificationType shimNotificationType = ShimNotificationType.None;
bool isSinglePhase = false;
bool abortingHint = false;
UInt32 prepareInfoSize = 0;
CoTaskMemHandle prepareInfoBuffer = null;
bool holdingNotificationLock = false;
bool cleanExit = false;
IDtcProxyShimFactory localProxyShimFactory = null;
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"OletxTransactionManager.ShimNotificationCallback"
);
}
// This lock doesn't really protect any of our data. It is here so that if an exception occurs
// while calling out to the app, we get an escalation to AppDomainUnload.
Thread.BeginCriticalRegion();
try
{
do
{
// Take a local copy of the proxyShimFactory because if we get an RM TMDown notification,
// we will still hold the critical section in that factory, but processing of the TMDown will
// cause replacement of the OletxTransactionManager.proxyShimFactory.
localProxyShimFactory = OletxTransactionManager.proxyShimFactory;
try
{
Thread.BeginThreadAffinity();
RuntimeHelpers.PrepareConstrainedRegions();
try
{
localProxyShimFactory.GetNotification(
out enlistmentHandleIntPtr,
out shimNotificationType,
out isSinglePhase,
out abortingHint,
out holdingNotificationLock,
out prepareInfoSize,
out prepareInfoBuffer
);
}
finally
{
if (holdingNotificationLock)
{
if ((HandleTable.FindHandle(enlistmentHandleIntPtr)) is OletxInternalResourceManager)
{
// In this case we know that the TM has gone down and we need to exchange
// the native lock for a managed lock.
processingTmDown = true;
#pragma warning disable 0618
//@
System.Threading.Monitor.Enter(OletxTransactionManager.proxyShimFactory);
#pragma warning restore 0618
}
else
{
holdingNotificationLock = false;
}
localProxyShimFactory.ReleaseNotificationLock();
}
Thread.EndThreadAffinity();
}
// If a TM down is being processed it is possible that the native lock
// has been exchanged for a managed lock. In that case we need to attempt
// to take a lock to hold up processing more events until the TM down
// processing is complete.
if (processingTmDown)
{
lock (OletxTransactionManager.proxyShimFactory)
{
// We don't do any work under this lock just make sure that we
// can take it.
}
}
if (ShimNotificationType.None != shimNotificationType)
{
Object target = HandleTable.FindHandle(enlistmentHandleIntPtr);
// Next, based on the notification type, cast the Handle accordingly and make
// the appropriate call on the enlistment.
switch (shimNotificationType)
{
case ShimNotificationType.Phase0RequestNotify:
{
try
{
OletxPhase0VolatileEnlistmentContainer ph0VolEnlistContainer = target as OletxPhase0VolatileEnlistmentContainer;
if (null != ph0VolEnlistContainer)
{
DiagnosticTrace.SetActivityId(
ph0VolEnlistContainer.TransactionIdentifier);
//CSDMain 91509 - We now synchronize this call with the AddDependentClone call in RealOleTxTransaction
ph0VolEnlistContainer.Phase0Request(abortingHint);
}
else
{
OletxEnlistment enlistment = target as OletxEnlistment;
if (null != enlistment)
{
DiagnosticTrace.SetActivityId(
enlistment.TransactionIdentifier);
enlistment.Phase0Request(abortingHint);
}
else
{
Environment.FailFast(SR.GetString(SR.InternalError));
}
}
}
finally
{
// We aren't going to get any more notifications on this.
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
break;
}
case ShimNotificationType.VoteRequestNotify:
{
OletxPhase1VolatileEnlistmentContainer ph1VolEnlistContainer = target as OletxPhase1VolatileEnlistmentContainer;
if (null != ph1VolEnlistContainer)
{
DiagnosticTrace.SetActivityId(
ph1VolEnlistContainer.TransactionIdentifier);
ph1VolEnlistContainer.VoteRequest();
}
else
{
Environment.FailFast(SR.GetString(SR.InternalError));
}
break;
}
case ShimNotificationType.CommittedNotify:
{
try
{
OutcomeEnlistment outcomeEnlistment = target as OutcomeEnlistment;
if (null != outcomeEnlistment)
{
DiagnosticTrace.SetActivityId(
outcomeEnlistment.TransactionIdentifier);
outcomeEnlistment.Committed();
}
else
{
OletxPhase1VolatileEnlistmentContainer ph1VolEnlistContainer = target as OletxPhase1VolatileEnlistmentContainer;
if (null != ph1VolEnlistContainer)
{
DiagnosticTrace.SetActivityId(
ph1VolEnlistContainer.TransactionIdentifier);
ph1VolEnlistContainer.Committed();
}
else
{
Environment.FailFast(SR.GetString(SR.InternalError));
}
}
}
finally
{
// We aren't going to get any more notifications on this.
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
break;
}
case ShimNotificationType.AbortedNotify:
{
try
{
OutcomeEnlistment outcomeEnlistment = target as OutcomeEnlistment;
if (null != outcomeEnlistment)
{
DiagnosticTrace.SetActivityId(
outcomeEnlistment.TransactionIdentifier);
outcomeEnlistment.Aborted();
}
else
{
OletxPhase1VolatileEnlistmentContainer ph1VolEnlistContainer = target as OletxPhase1VolatileEnlistmentContainer;
if (null != ph1VolEnlistContainer)
{
DiagnosticTrace.SetActivityId(
ph1VolEnlistContainer.TransactionIdentifier);
ph1VolEnlistContainer.Aborted();
}
// else
// Voters may receive notifications even
// in cases where they therwise respond
// negatively to the vote request. It is
// also not guaranteed that we will get a
// notification if we do respond negatively.
// The only safe thing to do is to free the
// Handle when we abort the transaction
// with a voter. These two things together
// mean that we cannot guarantee that this
// Handle will be alive when we get this
// notification.
}
}
finally
{
// We aren't going to get any more notifications on this.
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
break;
}
case ShimNotificationType.InDoubtNotify:
{
try
{
OutcomeEnlistment outcomeEnlistment = target as OutcomeEnlistment;
if (null != outcomeEnlistment)
{
DiagnosticTrace.SetActivityId(
outcomeEnlistment.TransactionIdentifier);
outcomeEnlistment.InDoubt();
}
else
{
OletxPhase1VolatileEnlistmentContainer ph1VolEnlistContainer = target as OletxPhase1VolatileEnlistmentContainer;
if (null != ph1VolEnlistContainer)
{
DiagnosticTrace.SetActivityId(
ph1VolEnlistContainer.TransactionIdentifier);
ph1VolEnlistContainer.InDoubt();
}
else
{
Environment.FailFast(SR.GetString(SR.InternalError));
}
}
}
finally
{
// We aren't going to get any more notifications on this.
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
break;
}
case ShimNotificationType.PrepareRequestNotify:
{
byte[] prepareInfo = new byte[prepareInfoSize];
Marshal.Copy(prepareInfoBuffer.DangerousGetHandle(), prepareInfo, 0, Convert.ToInt32(prepareInfoSize));
bool enlistmentDone = true;
try
{
OletxEnlistment enlistment = target as OletxEnlistment;
if (null != enlistment)
{
DiagnosticTrace.SetActivityId(
enlistment.TransactionIdentifier);
enlistmentDone = enlistment.PrepareRequest(
isSinglePhase,
prepareInfo
);
}
else
{
Environment.FailFast(SR.GetString(SR.InternalError));
}
}
finally
{
if (enlistmentDone)
{
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
}
break;
}
case ShimNotificationType.CommitRequestNotify:
{
try
{
OletxEnlistment enlistment = target as OletxEnlistment;
if (null != enlistment)
{
DiagnosticTrace.SetActivityId(
enlistment.TransactionIdentifier);
enlistment.CommitRequest();
}
else
{
Environment.FailFast(SR.GetString(SR.InternalError));
}
}
finally
{
// We aren't going to get any more notifications on this.
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
break;
}
case ShimNotificationType.AbortRequestNotify:
{
try
{
OletxEnlistment enlistment = target as OletxEnlistment;
if (null != enlistment)
{
DiagnosticTrace.SetActivityId(
enlistment.TransactionIdentifier);
enlistment.AbortRequest();
}
else
{
Environment.FailFast(SR.GetString(SR.InternalError));
}
}
finally
{
// We aren't going to get any more notifications on this.
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
break;
}
case ShimNotificationType.EnlistmentTmDownNotify:
{
try
{
OletxEnlistment enlistment = target as OletxEnlistment;
if (null != enlistment)
{
DiagnosticTrace.SetActivityId(
enlistment.TransactionIdentifier);
enlistment.TMDown();
}
else
{
Environment.FailFast(SR.GetString(SR.InternalError));
}
}
finally
{
// We aren't going to get any more notifications on this.
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
break;
}
case ShimNotificationType.ResourceManagerTmDownNotify:
{
OletxResourceManager resourceManager = target as OletxResourceManager;
try
{
if (null != resourceManager)
{
resourceManager.TMDown();
}
else
{
OletxInternalResourceManager internalResourceManager = target as OletxInternalResourceManager;
if (null != internalResourceManager)
{
internalResourceManager.TMDown();
}
else
{
Environment.FailFast(SR.GetString(SR.InternalError));
}
}
}
finally
{
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
// Note that we don't free the gchandle on the OletxResourceManager. These objects
// are not going to go away.
break;
}
default:
{
Environment.FailFast(SR.GetString(SR.InternalError));
break;
}
}
}
}
finally
{
if (null != prepareInfoBuffer)
{
prepareInfoBuffer.Close();
}
if (holdingNotificationLock)
{
holdingNotificationLock = false;
processingTmDown = false;
System.Threading.Monitor.Exit(OletxTransactionManager.proxyShimFactory);
}
}
}while (ShimNotificationType.None != shimNotificationType);
cleanExit = true;
}
finally
{
if (holdingNotificationLock)
{
holdingNotificationLock = false;
processingTmDown = false;
System.Threading.Monitor.Exit(OletxTransactionManager.proxyShimFactory);
}
if (!cleanExit && enlistmentHandleIntPtr != IntPtr.Zero)
{
HandleTable.FreeHandle(enlistmentHandleIntPtr);
}
Thread.EndCriticalRegion();
}
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"OletxTransactionManager.ShimNotificationCallback"
);
}
}
internal OletxCommittableTransaction CreateTransaction(
TransactionOptions properties
)
{
OletxCommittableTransaction tx = null;
RealOletxTransaction realTransaction = null;
ITransactionShim transactionShim = null;
Guid txIdentifier = Guid.Empty;
OutcomeEnlistment outcomeEnlistment = null;
// Demand the distributed transation permission to create one of
// these.
DistributedTransactionPermission txPerm =
new DistributedTransactionPermission(PermissionState.Unrestricted);
txPerm.Demand();
TransactionManager.ValidateIsolationLevel(properties.IsolationLevel);
// Never create a transaction with an IsolationLevel of Unspecified.
if (IsolationLevel.Unspecified == properties.IsolationLevel)
{
properties.IsolationLevel = configuredTransactionOptions.IsolationLevel;
}
properties.Timeout = TransactionManager.ValidateTimeout(properties.Timeout);
this.dtcTransactionManagerLock.AcquireReaderLock(-1);
try
{
//
OletxTransactionIsolationLevel oletxIsoLevel = OletxTransactionManager.ConvertIsolationLevel(properties.IsolationLevel);
UInt32 oletxTimeout = DtcTransactionManager.AdjustTimeout(properties.Timeout);
outcomeEnlistment = new OutcomeEnlistment();
IntPtr outcomeEnlistmentHandle = IntPtr.Zero;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
outcomeEnlistmentHandle = HandleTable.AllocHandle(outcomeEnlistment);
dtcTransactionManager.ProxyShimFactory.BeginTransaction(
oletxTimeout,
oletxIsoLevel,
outcomeEnlistmentHandle,
out txIdentifier,
out transactionShim
);
}
catch (COMException ex)
{
OletxTransactionManager.ProxyException(ex);
throw;
}
finally
{
if (transactionShim == null && outcomeEnlistmentHandle != IntPtr.Zero)
{
HandleTable.FreeHandle(outcomeEnlistmentHandle);
}
}
realTransaction = new RealOletxTransaction(
this,
transactionShim,
outcomeEnlistment,
txIdentifier,
oletxIsoLevel,
true
);
tx = new OletxCommittableTransaction(realTransaction);
if (DiagnosticTrace.Information)
{
TransactionCreatedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
tx.TransactionTraceId
);
}
}
finally
{
this.dtcTransactionManagerLock.ReleaseReaderLock();
}
return(tx);
}
internal OletxCommittableTransaction CreateTransaction(
TransactionOptions properties
)
{
OletxCommittableTransaction tx = null;
RealOletxTransaction realTransaction = null;
ITransactionShim transactionShim = null;
Guid txIdentifier = Guid.Empty;
OutcomeEnlistment outcomeEnlistment = null;
// Demand the distributed transation permission to create one of
// these.
DistributedTransactionPermission txPerm =
new DistributedTransactionPermission( PermissionState.Unrestricted );
txPerm.Demand();
TransactionManager.ValidateIsolationLevel( properties.IsolationLevel );
// Never create a transaction with an IsolationLevel of Unspecified.
if ( IsolationLevel.Unspecified == properties.IsolationLevel )
{
properties.IsolationLevel = configuredTransactionOptions.IsolationLevel;
}
properties.Timeout = TransactionManager.ValidateTimeout( properties.Timeout );
this.dtcTransactionManagerLock.AcquireReaderLock( -1 );
try
{
//
OletxTransactionIsolationLevel oletxIsoLevel = OletxTransactionManager.ConvertIsolationLevel( properties.IsolationLevel );
UInt32 oletxTimeout = DtcTransactionManager.AdjustTimeout( properties.Timeout );
outcomeEnlistment = new OutcomeEnlistment();
IntPtr outcomeEnlistmentHandle = IntPtr.Zero;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
outcomeEnlistmentHandle = HandleTable.AllocHandle( outcomeEnlistment );
dtcTransactionManager.ProxyShimFactory.BeginTransaction(
oletxTimeout,
oletxIsoLevel,
outcomeEnlistmentHandle,
out txIdentifier,
out transactionShim
);
}
catch ( COMException ex )
{
OletxTransactionManager.ProxyException( ex );
throw;
}
finally
{
if ( transactionShim == null && outcomeEnlistmentHandle != IntPtr.Zero )
{
HandleTable.FreeHandle( outcomeEnlistmentHandle );
}
}
realTransaction = new RealOletxTransaction(
this,
transactionShim,
outcomeEnlistment,
txIdentifier,
oletxIsoLevel,
true
);
tx = new OletxCommittableTransaction( realTransaction );
if ( DiagnosticTrace.Information )
{
TransactionCreatedTraceRecord.Trace( SR.GetString( SR.TraceSourceOletx ),
tx.TransactionTraceId
);
}
}
finally
{
this.dtcTransactionManagerLock.ReleaseReaderLock();
}
return tx;
}
