internal override void RollbackFromTransaction()
{
bool flag = false;
IVoterBallotShim voterBallotShim = null;
lock (this)
{
if (DiagnosticTrace.Verbose)
{
string methodName = "OletxPhase1VolatileEnlistmentContainer.RollbackFromTransaction, outstandingNotifications = " + this.outstandingNotifications.ToString(CultureInfo.CurrentCulture) + ", incompleteDependentClones = " + this.incompleteDependentClones.ToString(CultureInfo.CurrentCulture);
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), methodName);
}
if ((1 == base.phase) && (0 < base.outstandingNotifications))
{
base.alreadyVoted = true;
flag = true;
voterBallotShim = this.voterBallotShim;
}
}
if (flag)
{
try
{
if (voterBallotShim != null)
{
voterBallotShim.Vote(false);
}
this.Aborted();
}
catch (COMException exception)
{
if ((System.Transactions.Oletx.NativeMethods.XACT_E_CONNECTION_DOWN != exception.ErrorCode) && (System.Transactions.Oletx.NativeMethods.XACT_E_TMNOTAVAILABLE != exception.ErrorCode))
{
throw;
}
lock (this)
{
if (1 == base.phase)
{
this.InDoubt();
}
}
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
}
finally
{
HandleTable.FreeHandle(this.voterHandle);
}
}
if (DiagnosticTrace.Verbose)
{
string str = "OletxPhase1VolatileEnlistmentContainer.RollbackFromTransaction";
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), str);
}
}
private void Initialize()
{
if (!this.initialized)
{
OletxInternalResourceManager internalResourceManager = this.oletxTm.internalResourceManager;
IntPtr zero = IntPtr.Zero;
IResourceManagerShim resourceManagerShim = null;
bool nodeNameMatches = false;
CoTaskMemHandle whereaboutsBuffer = null;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
zero = HandleTable.AllocHandle(internalResourceManager);
this.proxyShimFactory.ConnectToProxy(this.nodeName, internalResourceManager.Identifier, zero, out nodeNameMatches, out this.whereaboutsSize, out whereaboutsBuffer, out resourceManagerShim);
if (!nodeNameMatches)
{
throw new NotSupportedException(System.Transactions.SR.GetString("ProxyCannotSupportMultipleNodeNames"));
}
if ((whereaboutsBuffer != null) && (this.whereaboutsSize != 0))
{
this.whereabouts = new byte[this.whereaboutsSize];
Marshal.Copy(whereaboutsBuffer.DangerousGetHandle(), this.whereabouts, 0, Convert.ToInt32(this.whereaboutsSize));
}
internalResourceManager.resourceManagerShim = resourceManagerShim;
internalResourceManager.CallReenlistComplete();
this.initialized = true;
}
catch (COMException exception)
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_NOTSUPPORTED == exception.ErrorCode)
{
throw new NotSupportedException(System.Transactions.SR.GetString("CannotSupportNodeNameSpecification"));
}
OletxTransactionManager.ProxyException(exception);
throw TransactionManagerCommunicationException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionManagerCommunicationException"), exception);
}
finally
{
if (whereaboutsBuffer != null)
{
whereaboutsBuffer.Close();
}
if (!this.initialized)
{
if ((zero != IntPtr.Zero) && (resourceManagerShim == null))
{
HandleTable.FreeHandle(zero);
}
if (this.whereabouts != null)
{
this.whereabouts = null;
this.whereaboutsSize = 0;
}
}
}
}
}
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 void ForceRollback(Exception e)
{
IPhase0EnlistmentShim shim = null;
IEnlistmentShim enlistmentShim = null;
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxPreparingEnlistment.ForceRollback");
}
if (DiagnosticTrace.Warning)
{
EnlistmentCallbackNegativeTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), base.InternalTraceIdentifier, EnlistmentCallback.ForceRollback);
}
lock (this)
{
if (OletxEnlistmentState.Preparing == this.state)
{
enlistmentShim = this.EnlistmentShim;
}
else
{
if (OletxEnlistmentState.Phase0Preparing != this.state)
{
throw TransactionException.CreateEnlistmentStateException(System.Transactions.SR.GetString("TraceSourceOletx"), null);
}
shim = this.Phase0EnlistmentShim;
if (shim != null)
{
base.oletxTransaction.realOletxTransaction.DecrementUndecidedEnlistments();
}
}
this.state = OletxEnlistmentState.Aborted;
}
Interlocked.CompareExchange <Exception>(ref base.oletxTransaction.realOletxTransaction.innerException, e, null);
try
{
if (enlistmentShim != null)
{
try
{
enlistmentShim.PrepareRequestDone(OletxPrepareVoteType.Failed);
}
finally
{
HandleTable.FreeHandle(this.phase1Handle);
}
}
if (shim != null)
{
shim.Phase0Done(false);
}
}
catch (COMException exception)
{
if ((System.Transactions.Oletx.NativeMethods.XACT_E_CONNECTION_DOWN != exception.ErrorCode) && (System.Transactions.Oletx.NativeMethods.XACT_E_TMNOTAVAILABLE != exception.ErrorCode))
{
throw;
}
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
}
finally
{
this.FinishEnlistment();
}
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxPreparingEnlistment.ForceRollback");
}
}
public void EnlistmentDone()
{
bool flag;
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxEnlistment.EnlistmentDone");
EnlistmentCallbackPositiveTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), base.InternalTraceIdentifier, EnlistmentCallback.Done);
}
IEnlistmentShim enlistmentShim = null;
IPhase0EnlistmentShim shim2 = null;
OletxEnlistmentState active = OletxEnlistmentState.Active;
bool fabricateRollback = false;
lock (this)
{
active = this.state;
if (this.state == OletxEnlistmentState.Active)
{
shim2 = this.Phase0EnlistmentShim;
if (shim2 != null)
{
base.oletxTransaction.realOletxTransaction.DecrementUndecidedEnlistments();
}
flag = false;
}
else if (OletxEnlistmentState.Preparing == this.state)
{
enlistmentShim = this.EnlistmentShim;
flag = true;
}
else if (OletxEnlistmentState.Phase0Preparing == this.state)
{
shim2 = this.Phase0EnlistmentShim;
base.oletxTransaction.realOletxTransaction.DecrementUndecidedEnlistments();
if (this.fabricateRollback)
{
flag = true;
}
else
{
flag = false;
}
}
else
{
if (((OletxEnlistmentState.Committing != this.state) && (OletxEnlistmentState.Aborting != this.state)) && (OletxEnlistmentState.SinglePhaseCommitting != this.state))
{
throw TransactionException.CreateEnlistmentStateException(System.Transactions.SR.GetString("TraceSourceOletx"), null);
}
enlistmentShim = this.EnlistmentShim;
flag = true;
}
fabricateRollback = this.fabricateRollback;
this.state = OletxEnlistmentState.Done;
}
try
{
if (enlistmentShim != null)
{
if (OletxEnlistmentState.Preparing == active)
{
try
{
enlistmentShim.PrepareRequestDone(OletxPrepareVoteType.ReadOnly);
goto Label_01C1;
}
finally
{
HandleTable.FreeHandle(this.phase1Handle);
}
}
if (OletxEnlistmentState.Committing != active)
{
if (OletxEnlistmentState.Aborting != active)
{
if (OletxEnlistmentState.SinglePhaseCommitting != active)
{
throw TransactionException.CreateEnlistmentStateException(System.Transactions.SR.GetString("TraceSourceOletx"), null);
}
enlistmentShim.PrepareRequestDone(OletxPrepareVoteType.SinglePhase);
}
else if (!fabricateRollback)
{
enlistmentShim.AbortRequestDone();
}
}
else
{
enlistmentShim.CommitRequestDone();
}
}
else if (shim2 != null)
{
if (active != OletxEnlistmentState.Active)
{
if (OletxEnlistmentState.Phase0Preparing != active)
{
throw TransactionException.CreateEnlistmentStateException(System.Transactions.SR.GetString("TraceSourceOletx"), null);
}
shim2.Phase0Done(true);
}
else
{
shim2.Unenlist();
}
}
}
catch (COMException exception)
{
flag = true;
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
}
finally
{
if (flag)
{
this.FinishEnlistment();
}
}
Label_01C1:
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), "OletxEnlistment.EnlistmentDone");
}
}
internal OletxVolatileEnlistmentContainer AddDependentClone(bool delayCommit)
{
IVoterBallotShim voterBallotShim = null;
IPhase0EnlistmentShim shim2 = null;
bool flag2 = false;
bool flag = false;
OletxVolatileEnlistmentContainer container3 = null;
OletxPhase0VolatileEnlistmentContainer container = null;
OletxPhase1VolatileEnlistmentContainer target = null;
bool flag3 = false;
bool flag5 = false;
IntPtr zero = IntPtr.Zero;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
lock (this)
{
if (delayCommit)
{
if (this.phase0EnlistVolatilementContainerList == null)
{
this.phase0EnlistVolatilementContainerList = new ArrayList(1);
}
if (this.phase0EnlistVolatilementContainerList.Count == 0)
{
container = new OletxPhase0VolatileEnlistmentContainer(this);
flag = true;
}
else
{
container = this.phase0EnlistVolatilementContainerList[this.phase0EnlistVolatilementContainerList.Count - 1] as OletxPhase0VolatileEnlistmentContainer;
if (container != null)
{
this.TakeContainerLock(container, ref flag5);
}
if (!container.NewEnlistmentsAllowed)
{
this.ReleaseContainerLock(container, ref flag5);
container = new OletxPhase0VolatileEnlistmentContainer(this);
flag = true;
}
else
{
flag = false;
}
}
if (flag)
{
zero = HandleTable.AllocHandle(container);
}
}
else if (this.phase1EnlistVolatilementContainer == null)
{
target = new OletxPhase1VolatileEnlistmentContainer(this);
flag2 = true;
target.voterHandle = HandleTable.AllocHandle(target);
}
else
{
flag2 = false;
target = this.phase1EnlistVolatilementContainer;
}
try
{
if (container != null)
{
this.TakeContainerLock(container, ref flag5);
}
if (flag)
{
this.transactionShim.Phase0Enlist(zero, out shim2);
container.Phase0EnlistmentShim = shim2;
}
if (flag2)
{
this.OletxTransactionManagerInstance.dtcTransactionManagerLock.AcquireReaderLock(-1);
try
{
this.transactionShim.CreateVoter(target.voterHandle, out voterBallotShim);
flag3 = true;
}
finally
{
this.OletxTransactionManagerInstance.dtcTransactionManagerLock.ReleaseReaderLock();
}
target.VoterBallotShim = voterBallotShim;
}
if (delayCommit)
{
if (flag)
{
this.phase0EnlistVolatilementContainerList.Add(container);
}
container.AddDependentClone();
return(container);
}
if (flag2)
{
this.phase1EnlistVolatilementContainer = target;
}
target.AddDependentClone();
return(target);
}
catch (COMException exception)
{
OletxTransactionManager.ProxyException(exception);
throw;
}
return(container3);
}
}
finally
{
if (container != null)
{
this.ReleaseContainerLock(container, ref flag5);
}
if ((zero != IntPtr.Zero) && (container.Phase0EnlistmentShim == null))
{
HandleTable.FreeHandle(zero);
}
if ((!flag3 && (target != null)) && ((target.voterHandle != IntPtr.Zero) && flag2))
{
HandleTable.FreeHandle(target.voterHandle);
}
}
return(container3);
}
internal IPromotedEnlistment CommonEnlistVolatile(IEnlistmentNotificationInternal enlistmentNotification, EnlistmentOptions enlistmentOptions, OletxTransaction oletxTransaction)
{
OletxVolatileEnlistment enlistment = null;
bool flag2 = false;
bool flag = false;
OletxPhase0VolatileEnlistmentContainer target = null;
OletxPhase1VolatileEnlistmentContainer container = null;
IntPtr zero = IntPtr.Zero;
IVoterBallotShim voterBallotShim = null;
IPhase0EnlistmentShim shim = null;
bool flag3 = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
lock (this)
{
enlistment = new OletxVolatileEnlistment(enlistmentNotification, enlistmentOptions, oletxTransaction);
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != EnlistmentOptions.None)
{
if (this.phase0EnlistVolatilementContainerList == null)
{
this.phase0EnlistVolatilementContainerList = new ArrayList(1);
}
if (this.phase0EnlistVolatilementContainerList.Count == 0)
{
target = new OletxPhase0VolatileEnlistmentContainer(this);
flag = true;
}
else
{
target = this.phase0EnlistVolatilementContainerList[this.phase0EnlistVolatilementContainerList.Count - 1] as OletxPhase0VolatileEnlistmentContainer;
if (!target.NewEnlistmentsAllowed)
{
target = new OletxPhase0VolatileEnlistmentContainer(this);
flag = true;
}
else
{
flag = false;
}
}
if (flag)
{
zero = HandleTable.AllocHandle(target);
}
}
else if (this.phase1EnlistVolatilementContainer == null)
{
flag2 = true;
container = new OletxPhase1VolatileEnlistmentContainer(this)
{
voterHandle = HandleTable.AllocHandle(container)
};
}
else
{
flag2 = false;
container = this.phase1EnlistVolatilementContainer;
}
try
{
if (flag)
{
lock (target)
{
this.transactionShim.Phase0Enlist(zero, out shim);
target.Phase0EnlistmentShim = shim;
}
}
if (flag2)
{
this.transactionShim.CreateVoter(container.voterHandle, out voterBallotShim);
flag3 = true;
container.VoterBallotShim = voterBallotShim;
}
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != EnlistmentOptions.None)
{
target.AddEnlistment(enlistment);
if (flag)
{
this.phase0EnlistVolatilementContainerList.Add(target);
}
return(enlistment);
}
container.AddEnlistment(enlistment);
if (flag2)
{
this.phase1EnlistVolatilementContainer = container;
}
return(enlistment);
}
catch (COMException exception)
{
OletxTransactionManager.ProxyException(exception);
throw;
}
return(enlistment);
}
}
finally
{
if ((zero != IntPtr.Zero) && (target.Phase0EnlistmentShim == null))
{
HandleTable.FreeHandle(zero);
}
if ((!flag3 && (container != null)) && ((container.voterHandle != IntPtr.Zero) && flag2))
{
HandleTable.FreeHandle(container.voterHandle);
}
}
return(enlistment);
}
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);
}
void Initialize()
{
if (this.initialized)
{
return;
}
OletxInternalResourceManager internalRM = this.oletxTm.internalResourceManager;
IntPtr handle = IntPtr.Zero;
IResourceManagerShim resourceManagerShim = null;
bool nodeNameMatches = false;
CoTaskMemHandle whereaboutsBuffer = null;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
handle = HandleTable.AllocHandle(internalRM);
this.proxyShimFactory.ConnectToProxy(
this.nodeName,
internalRM.Identifier,
handle,
out nodeNameMatches,
out this.whereaboutsSize,
out whereaboutsBuffer,
out resourceManagerShim
);
// If the node name does not match, throw.
if (!nodeNameMatches)
{
throw new NotSupportedException(SR.GetString(SR.ProxyCannotSupportMultipleNodeNames));
}
// Make a managed copy of the whereabouts.
if ((null != whereaboutsBuffer) && (0 != this.whereaboutsSize))
{
this.whereabouts = new byte[this.whereaboutsSize];
Marshal.Copy(whereaboutsBuffer.DangerousGetHandle(), this.whereabouts, 0, Convert.ToInt32(this.whereaboutsSize));
}
// Give the IResourceManagerShim to the internalRM and tell it to call ReenlistComplete.
internalRM.resourceManagerShim = resourceManagerShim;
internalRM.CallReenlistComplete();
this.initialized = true;
}
catch (COMException ex)
{
if (NativeMethods.XACT_E_NOTSUPPORTED == ex.ErrorCode)
{
throw new NotSupportedException(SR.GetString(SR.CannotSupportNodeNameSpecification));
}
OletxTransactionManager.ProxyException(ex);
// Unfortunately MSDTCPRX may return unknown error codes when attempting to connect to MSDTC
// that error should be propagated back as a TransactionManagerCommunicationException.
throw TransactionManagerCommunicationException.Create(
SR.GetString(SR.TraceSourceOletx),
SR.GetString(SR.TransactionManagerCommunicationException),
ex
);
}
finally
{
if (null != whereaboutsBuffer)
{
whereaboutsBuffer.Close();
}
// If we weren't successful at initializing ourself, clear things out
// for next time around.
if (!this.initialized)
{
if (handle != IntPtr.Zero && null == resourceManagerShim)
{
HandleTable.FreeHandle(handle);
}
if (null != this.whereabouts)
{
this.whereabouts = null;
this.whereaboutsSize = 0;
}
}
}
}
internal OletxEnlistment EnlistDurable(OletxTransaction oletxTransaction, bool canDoSinglePhase, IEnlistmentNotificationInternal enlistmentNotification, EnlistmentOptions enlistmentOptions)
{
IResourceManagerShim resourceManagerShim = null;
IPhase0EnlistmentShim shim2 = null;
IEnlistmentShim enlistmentShim = null;
IntPtr zero = IntPtr.Zero;
bool flag3 = false;
bool flag2 = false;
OletxEnlistment target = new OletxEnlistment(canDoSinglePhase, enlistmentNotification, oletxTransaction.RealTransaction.TxGuid, enlistmentOptions, this, oletxTransaction);
bool flag = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != EnlistmentOptions.None)
{
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
oletxTransaction.RealTransaction.IncrementUndecidedEnlistments();
flag2 = true;
}
}
lock (target)
{
RuntimeHelpers.PrepareConstrainedRegions();
try
{
resourceManagerShim = this.ResourceManagerShim;
if (resourceManagerShim == null)
{
throw TransactionManagerCommunicationException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), null);
}
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != EnlistmentOptions.None)
{
zero = HandleTable.AllocHandle(target);
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
oletxTransaction.RealTransaction.TransactionShim.Phase0Enlist(zero, out shim2);
flag3 = true;
}
target.Phase0EnlistmentShim = shim2;
}
target.phase1Handle = HandleTable.AllocHandle(target);
resourceManagerShim.Enlist(oletxTransaction.RealTransaction.TransactionShim, target.phase1Handle, out enlistmentShim);
target.EnlistmentShim = enlistmentShim;
}
catch (COMException exception)
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_TOOMANY_ENLISTMENTS == exception.ErrorCode)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("OletxTooManyEnlistments"), exception);
}
OletxTransactionManager.ProxyException(exception);
throw;
}
finally
{
if (target.EnlistmentShim == null)
{
if ((zero != IntPtr.Zero) && !flag3)
{
HandleTable.FreeHandle(zero);
}
if (target.phase1Handle != IntPtr.Zero)
{
HandleTable.FreeHandle(target.phase1Handle);
}
}
}
}
flag = true;
}
finally
{
if ((!flag && ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != EnlistmentOptions.None)) && flag2)
{
oletxTransaction.RealTransaction.DecrementUndecidedEnlistments();
}
}
return(target);
}
