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");
}
}
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"
);
}
}