internal DtcTransactionManager(string nodeName, OletxTransactionManager oletxTm)
{
this.nodeName = nodeName;
this.oletxTm = oletxTm;
this.initialized = false;
this.proxyShimFactory = OletxTransactionManager.proxyShimFactory;
}
internal DtcTransactionManager( string nodeName, OletxTransactionManager oletxTm )
{
this.nodeName = nodeName;
this.oletxTm = oletxTm;
this.initialized = false;
this.proxyShimFactory = OletxTransactionManager.proxyShimFactory;
}
internal void Commit()
{
try
{
this.transactionShim.Commit();
}
catch (COMException exception)
{
if ((System.Transactions.Oletx.NativeMethods.XACT_E_ABORTED == exception.ErrorCode) || (System.Transactions.Oletx.NativeMethods.XACT_E_INDOUBT == exception.ErrorCode))
{
Interlocked.CompareExchange <Exception>(ref this.innerException, exception, null);
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
}
else
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_ALREADYINPROGRESS == exception.ErrorCode)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), exception);
}
OletxTransactionManager.ProxyException(exception);
throw;
}
}
}
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 void Rollback()
{
lock (this)
{
if ((TransactionStatus.Aborted != this.status) && (this.status != TransactionStatus.Active))
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), null);
}
if (TransactionStatus.Aborted == this.status)
{
return;
}
if (0 < this.undecidedEnlistmentCount)
{
this.doomed = true;
}
else if (this.tooLateForEnlistments)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), null);
}
if (this.phase0EnlistVolatilementContainerList != null)
{
foreach (OletxPhase0VolatileEnlistmentContainer container in this.phase0EnlistVolatilementContainerList)
{
container.RollbackFromTransaction();
}
}
if (this.phase1EnlistVolatilementContainer != null)
{
this.phase1EnlistVolatilementContainer.RollbackFromTransaction();
}
}
try
{
this.transactionShim.Abort();
}
catch (COMException exception)
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_ALREADYINPROGRESS == exception.ErrorCode)
{
if (!this.doomed)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), exception);
}
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
}
else
{
OletxTransactionManager.ProxyException(exception);
throw;
}
}
}
private static Oletx.OletxTransactionManager CheckTransactionManager(string nodeName)
{
Oletx.OletxTransactionManager tm = DistributedTransactionManager;
if (!((tm.NodeName == null && (nodeName == null || nodeName.Length == 0)) ||
(tm.NodeName != null && tm.NodeName.Equals(nodeName))))
{
throw new ArgumentException(SR.GetString(SR.InvalidRecoveryInformation), "recoveryInformation");
}
return(tm);
}
internal void TMDownFromInternalRM(OletxTransactionManager oletxTm)
{
lock (this)
{
if ((base.oletxTransaction == null) || (oletxTm == base.oletxTransaction.realOletxTransaction.OletxTransactionManagerInstance))
{
this.tmWentDown = true;
}
}
}
internal OletxResourceManager(OletxTransactionManager transactionManager, Guid resourceManagerIdentifier)
{
this.oletxTransactionManager = transactionManager;
this.resourceManagerIdentifier = resourceManagerIdentifier;
this.enlistmentHashtable = new Hashtable();
this.reenlistList = new ArrayList();
this.reenlistPendingList = new ArrayList();
this.reenlistThreadTimer = null;
this.reenlistThread = null;
this.recoveryCompleteCalledByApplication = false;
}
internal OletxResourceManager(OletxTransactionManager transactionManager, Guid resourceManagerIdentifier)
{
this.oletxTransactionManager = transactionManager;
this.resourceManagerIdentifier = resourceManagerIdentifier;
this.enlistmentHashtable = new Hashtable();
this.reenlistList = new ArrayList();
this.reenlistPendingList = new ArrayList();
this.reenlistThreadTimer = null;
this.reenlistThread = null;
this.recoveryCompleteCalledByApplication = false;
}
internal bool CallProxyReenlistComplete()
{
bool flag = false;
if (this.RecoveryCompleteCalledByApplication)
{
IResourceManagerShim resourceManagerShim = null;
try
{
try
{
resourceManagerShim = this.ResourceManagerShim;
if (resourceManagerShim != null)
{
resourceManagerShim.ReenlistComplete();
flag = true;
}
}
catch (COMException exception)
{
if ((System.Transactions.Oletx.NativeMethods.XACT_E_CONNECTION_DOWN == exception.ErrorCode) || (System.Transactions.Oletx.NativeMethods.XACT_E_TMNOTAVAILABLE == exception.ErrorCode))
{
flag = false;
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
return(flag);
}
if (System.Transactions.Oletx.NativeMethods.XACT_E_RECOVERYALREADYDONE != exception.ErrorCode)
{
OletxTransactionManager.ProxyException(exception);
throw;
}
return(true);
}
return(flag);
}
finally
{
resourceManagerShim = null;
}
}
return(true);
}
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 OletxResourceManager(
OletxTransactionManager transactionManager,
Guid resourceManagerIdentifier
)
{
Debug.Assert( null != transactionManager, "Argument is null" );
// This will get set later, after the resource manager is created with the proxy.
this.resourceManagerShim = null;
this.oletxTransactionManager = transactionManager;
this.resourceManagerIdentifier = resourceManagerIdentifier;
this.enlistmentHashtable = new Hashtable();
this.reenlistList = new ArrayList();
this.reenlistPendingList = new ArrayList();
reenlistThreadTimer = null;
reenlistThread = null;
recoveryCompleteCalledByApplication = false;
}
internal void TMDownFromInternalRM(OletxTransactionManager oletxTM)
{
OletxEnlistment enlistment = null;
IDictionaryEnumerator enumerator = null;
Hashtable hashtable = null;
this.ResourceManagerShim = null;
lock (this.enlistmentHashtable.SyncRoot)
{
hashtable = (Hashtable)this.enlistmentHashtable.Clone();
}
enumerator = hashtable.GetEnumerator();
while (enumerator.MoveNext())
{
enlistment = enumerator.Value as OletxEnlistment;
if (enlistment != null)
{
enlistment.TMDownFromInternalRM(oletxTM);
}
}
}
internal OletxInternalResourceManager(OletxTransactionManager oletxTm)
{
this.oletxTm = oletxTm;
this.myGuid = Guid.NewGuid();
}
internal void TMDownFromInternalRM( OletxTransactionManager oletxTm )
{
lock ( this )
{
// If we don't have an oletxTransaction or the passed oletxTm matches that of my oletxTransaction, the TM went down.
if ( ( null == this.oletxTransaction ) || ( oletxTm == this.oletxTransaction.realOletxTransaction.OletxTransactionManagerInstance ) )
{
this.tmWentDown = true;
}
}
return;
}
internal void TMDownFromInternalRM(OletxTransactionManager oletxTM)
{
OletxEnlistment enlistment = null;
IDictionaryEnumerator enumerator = null;
Hashtable hashtable = null;
this.ResourceManagerShim = null;
lock (this.enlistmentHashtable.SyncRoot)
{
hashtable = (Hashtable) this.enlistmentHashtable.Clone();
}
enumerator = hashtable.GetEnumerator();
while (enumerator.MoveNext())
{
enlistment = enumerator.Value as OletxEnlistment;
if (enlistment != null)
{
enlistment.TMDownFromInternalRM(oletxTM);
}
}
}
public bool PrepareRequest(bool singlePhase, byte[] prepareInfo)
{
IEnlistmentShim enlistmentShim = null;
OletxEnlistmentState active = OletxEnlistmentState.Active;
IEnlistmentNotificationInternal iEnlistmentNotification = null;
OletxRecoveryInformation thingToConvert = null;
lock (this)
{
if (this.state == OletxEnlistmentState.Active)
{
active = this.state = OletxEnlistmentState.Preparing;
}
else
{
active = this.state;
}
iEnlistmentNotification = this.iEnlistmentNotification;
enlistmentShim = this.EnlistmentShim;
base.oletxTransaction.realOletxTransaction.TooLateForEnlistments = true;
}
if (OletxEnlistmentState.Preparing == active)
{
thingToConvert = new OletxRecoveryInformation(prepareInfo);
this.isSinglePhase = singlePhase;
long length = prepareInfo.Length;
this.proxyPrepareInfoByteArray = new byte[length];
Array.Copy(prepareInfo, this.proxyPrepareInfoByteArray, length);
if (this.isSinglePhase && this.canDoSinglePhase)
{
ISinglePhaseNotificationInternal internal3 = (ISinglePhaseNotificationInternal)iEnlistmentNotification;
this.state = OletxEnlistmentState.SinglePhaseCommitting;
if (DiagnosticTrace.Verbose)
{
EnlistmentNotificationCallTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), base.InternalTraceIdentifier, NotificationCall.SinglePhaseCommit);
}
internal3.SinglePhaseCommit(this);
return(true);
}
byte[] resourceManagerRecoveryInformation = TransactionManager.ConvertToByteArray(thingToConvert);
this.state = OletxEnlistmentState.Preparing;
this.prepareInfoByteArray = TransactionManager.GetRecoveryInformation(base.oletxResourceManager.oletxTransactionManager.CreationNodeName, resourceManagerRecoveryInformation);
if (DiagnosticTrace.Verbose)
{
EnlistmentNotificationCallTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), base.InternalTraceIdentifier, NotificationCall.Prepare);
}
iEnlistmentNotification.Prepare(this);
return(false);
}
if (OletxEnlistmentState.Prepared == active)
{
try
{
enlistmentShim.PrepareRequestDone(OletxPrepareVoteType.Prepared);
return(false);
}
catch (COMException exception3)
{
OletxTransactionManager.ProxyException(exception3);
throw;
}
}
if (OletxEnlistmentState.Done == active)
{
try
{
bool flag;
try
{
enlistmentShim.PrepareRequestDone(OletxPrepareVoteType.ReadOnly);
flag = true;
}
finally
{
this.FinishEnlistment();
}
return(flag);
}
catch (COMException exception2)
{
OletxTransactionManager.ProxyException(exception2);
throw;
}
}
try
{
enlistmentShim.PrepareRequestDone(OletxPrepareVoteType.Failed);
}
catch (COMException exception)
{
if (DiagnosticTrace.Verbose)
{
ExceptionConsumedTraceRecord.Trace(System.Transactions.SR.GetString("TraceSourceOletx"), exception);
}
}
return(true);
}
internal void TMDownFromInternalRM(OletxTransactionManager oletxTm)
{
lock (this)
{
if ((base.oletxTransaction == null) || (oletxTm == base.oletxTransaction.realOletxTransaction.OletxTransactionManagerInstance))
{
this.tmWentDown = true;
}
}
}
// 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;
}
}
}
}
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 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);
}
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 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 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);
}
// This is called by the internal RM when it gets a TM Down notification. This routine will
// tell the enlistments about the TMDown from the internal RM. The enlistments will then
// decide what to do, based on their state. This is mainly to work around COMPlus bug 36760/36758,
// where Phase0 enlistments get Phase0Request( abortHint = false ) when the TM goes down. We want
// to try to avoid telling the application to prepare when we know the transaction will abort.
// We can't do this out of the normal TMDown notification to the RM because it is too late. The
// Phase0Request gets sent before the TMDown notification.
internal void TMDownFromInternalRM( OletxTransactionManager oletxTM )
{
Hashtable localEnlistmentHashtable = null;
IDictionaryEnumerator enlistEnum = null;
OletxEnlistment enlistment = null;
// If the internal RM got a TMDown, we will shortly, so null out our ResourceManagerShim now.
this.ResourceManagerShim = null;
// Make our own copy of the hashtable of enlistments.
lock ( enlistmentHashtable.SyncRoot )
{
localEnlistmentHashtable = (Hashtable) this.enlistmentHashtable.Clone();
}
// Tell all of our enlistments that the TM went down. The proxy only
// tells enlistments that are in the Prepared state, but we want our Phase0
// enlistments to know so they can avoid sending Prepare when they get a
// Phase0Request - COMPlus bug 36760/36758.
enlistEnum = localEnlistmentHashtable.GetEnumerator();
while ( enlistEnum.MoveNext() )
{
enlistment = enlistEnum.Value as OletxEnlistment;
if ( null != enlistment )
{
enlistment.TMDownFromInternalRM( oletxTM );
}
}
}
internal OletxInternalResourceManager(OletxTransactionManager oletxTm)
{
this.oletxTm = oletxTm;
this.myGuid = Guid.NewGuid();
}
static public Enlistment Reenlist(
Guid resourceManagerIdentifier,
byte[] recoveryInformation,
IEnlistmentNotification enlistmentNotification
)
{
if (resourceManagerIdentifier == Guid.Empty)
{
throw new ArgumentException(SR.GetString(SR.BadResourceManagerId), "resourceManagerIdentifier");
}
if (null == recoveryInformation)
{
throw new ArgumentNullException("recoveryInformation");
}
if (null == enlistmentNotification)
{
throw new ArgumentNullException("enlistmentNotification");
}
if (!TransactionManager._platformValidated)
{
TransactionManager.ValidatePlatform();
}
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
"TransactionManager.Reenlist"
);
}
if (DiagnosticTrace.Information)
{
ReenlistTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
resourceManagerIdentifier
);
}
// Put the recovery information into a stream.
MemoryStream stream = new MemoryStream(recoveryInformation);
int recoveryInformationVersion = 0;
string nodeName = null;
byte[] resourceManagerRecoveryInformation = null;
try
{
BinaryReader reader = new BinaryReader(stream);
recoveryInformationVersion = reader.ReadInt32();
if (recoveryInformationVersion == TransactionManager.recoveryInformationVersion1)
{
nodeName = reader.ReadString();
resourceManagerRecoveryInformation = reader.ReadBytes(recoveryInformation.Length - checked ((int)stream.Position));
}
else
{
if (DiagnosticTrace.Error)
{
TransactionExceptionTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
SR.GetString(SR.UnrecognizedRecoveryInformation)
);
}
throw new ArgumentException(SR.GetString(SR.UnrecognizedRecoveryInformation), "recoveryInformation");
}
}
catch (System.IO.EndOfStreamException e)
{
if (DiagnosticTrace.Error)
{
TransactionExceptionTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
SR.GetString(SR.UnrecognizedRecoveryInformation)
);
}
throw new ArgumentException(SR.GetString(SR.UnrecognizedRecoveryInformation), "recoveryInformation", e);
}
catch (System.FormatException e)
{
if (DiagnosticTrace.Error)
{
TransactionExceptionTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
SR.GetString(SR.UnrecognizedRecoveryInformation)
);
}
throw new ArgumentException(SR.GetString(SR.UnrecognizedRecoveryInformation), "recoveryInformation", e);
}
finally
{
stream.Close();
}
Oletx.OletxTransactionManager transactionManager = CheckTransactionManager(nodeName);
// Now ask the Transaction Manager to reenlist.
object syncRoot = new object();
Enlistment returnValue = new Enlistment(enlistmentNotification, syncRoot);
EnlistmentState._EnlistmentStatePromoted.EnterState(returnValue.InternalEnlistment);
returnValue.InternalEnlistment.PromotedEnlistment =
transactionManager.ReenlistTransaction(
resourceManagerIdentifier,
resourceManagerRecoveryInformation,
(RecoveringInternalEnlistment)returnValue.InternalEnlistment
);
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceBase),
"TransactionManager.Reenlist"
);
}
return(returnValue);
}
