private void MapTxExceptionToHR(TransactionException txException, bool isInCommit)
{
TransactionAbortedException exception = txException as TransactionAbortedException;
if (exception != null)
{
if (isInCommit)
{
TransactionProxyException.ThrowTransactionProxyException(-2147164158, exception);
}
else
{
TransactionProxyException.ThrowTransactionProxyException(-2147164157, exception);
}
}
TransactionManagerCommunicationException exception2 = txException as TransactionManagerCommunicationException;
if (exception2 != null)
{
TransactionProxyException.ThrowTransactionProxyException(-2147164145, exception2);
}
COMException baseException = txException.GetBaseException() as COMException;
if (baseException != null)
{
TransactionProxyException.ThrowTransactionProxyException(baseException.ErrorCode, txException);
}
else
{
TransactionProxyException.ThrowTransactionProxyException(-2147418113, txException);
}
}
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;
}
}
}
}
}
private void Initialize()
{
if (_whereabouts is not null)
{
return;
}
OletxInternalResourceManager internalRM = _oletxTm.InternalResourceManager;
bool nodeNameMatches;
try
{
_proxyShimFactory.ConnectToProxy(
_nodeName,
internalRM.Identifier,
internalRM,
out nodeNameMatches,
out _whereabouts,
out ResourceManagerShim resourceManagerShim);
// If the node name does not match, throw.
if (!nodeNameMatches)
{
throw new NotSupportedException(SR.ProxyCannotSupportMultipleNodeNames);
}
// Give the IResourceManagerShim to the internalRM and tell it to call ReenlistComplete.
internalRM.ResourceManagerShim = resourceManagerShim;
internalRM.CallReenlistComplete();
}
catch (COMException ex)
{
if (ex.ErrorCode == OletxHelper.XACT_E_NOTSUPPORTED)
{
throw new NotSupportedException(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.TransactionManagerCommunicationException, ex);
}
}
internal static void ProxyException(COMException comException)
{
if ((System.Transactions.Oletx.NativeMethods.XACT_E_CONNECTION_DOWN == comException.ErrorCode) || (System.Transactions.Oletx.NativeMethods.XACT_E_TMNOTAVAILABLE == comException.ErrorCode))
{
throw TransactionManagerCommunicationException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionManagerCommunicationException"), comException);
}
if (System.Transactions.Oletx.NativeMethods.XACT_E_NETWORK_TX_DISABLED == comException.ErrorCode)
{
throw TransactionManagerCommunicationException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("NetworkTransactionsDisabled"), comException);
}
if ((System.Transactions.Oletx.NativeMethods.XACT_E_FIRST <= comException.ErrorCode) && (System.Transactions.Oletx.NativeMethods.XACT_E_LAST >= comException.ErrorCode))
{
if (System.Transactions.Oletx.NativeMethods.XACT_E_NOTRANSACTION == comException.ErrorCode)
{
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), System.Transactions.SR.GetString("TransactionAlreadyOver"), comException);
}
throw TransactionException.Create(System.Transactions.SR.GetString("TraceSourceOletx"), comException.Message, comException);
}
}
internal static void ProxyException(
COMException comException
)
{
if ((NativeMethods.XACT_E_CONNECTION_DOWN == comException.ErrorCode) ||
(NativeMethods.XACT_E_TMNOTAVAILABLE == comException.ErrorCode)
)
{
throw TransactionManagerCommunicationException.Create(
SR.GetString(SR.TraceSourceOletx),
SR.GetString(SR.TransactionManagerCommunicationException),
comException
);
}
if ((NativeMethods.XACT_E_NETWORK_TX_DISABLED == comException.ErrorCode))
{
throw TransactionManagerCommunicationException.Create(
SR.GetString(SR.TraceSourceOletx),
SR.GetString(SR.NetworkTransactionsDisabled),
comException
);
}
// Else if the error is a transaction oriented error, throw a TransactionException
else if ((NativeMethods.XACT_E_FIRST <= comException.ErrorCode) &&
(NativeMethods.XACT_E_LAST >= comException.ErrorCode))
{
// Special casing XACT_E_NOTRANSACTION
if (NativeMethods.XACT_E_NOTRANSACTION == comException.ErrorCode)
{
throw TransactionException.Create(
SR.GetString(SR.TraceSourceOletx),
SR.GetString(SR.TransactionAlreadyOver),
comException
);
}
throw TransactionException.Create(
SR.GetString(SR.TraceSourceOletx),
comException.Message,
comException
);
}
}
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);
}
internal OletxEnlistment EnlistDurable(
OletxTransaction oletxTransaction,
bool canDoSinglePhase,
IEnlistmentNotificationInternal enlistmentNotification,
EnlistmentOptions enlistmentOptions)
{
ResourceManagerShim?localResourceManagerShim;
Debug.Assert(oletxTransaction != null, "Argument is null");
Debug.Assert(enlistmentNotification != null, "Argument is null");
EnlistmentShim enlistmentShim;
Phase0EnlistmentShim phase0Shim;
Guid txUow = Guid.Empty;
bool undecidedEnlistmentsIncremented = false;
// Create our enlistment object.
OletxEnlistment enlistment = new(
canDoSinglePhase,
enlistmentNotification,
oletxTransaction.RealTransaction.TxGuid,
enlistmentOptions,
this,
oletxTransaction);
bool enlistmentSucceeded = false;
try
{
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != 0)
{
oletxTransaction.RealTransaction.IncrementUndecidedEnlistments();
undecidedEnlistmentsIncremented = true;
}
// This entire sequence needs to be executed before we can go on.
lock (enlistment)
{
try
{
// Do the enlistment on the proxy.
localResourceManagerShim = ResourceManagerShim;
if (localResourceManagerShim == null)
{
// The TM must be down. Throw the appropriate exception.
throw TransactionManagerCommunicationException.Create(SR.TraceSourceOletx, null);
}
if ((enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != 0)
{
oletxTransaction.RealTransaction.TransactionShim.Phase0Enlist(enlistment, out phase0Shim);
enlistment.Phase0EnlistmentShim = phase0Shim;
}
localResourceManagerShim.Enlist(oletxTransaction.RealTransaction.TransactionShim, enlistment, out enlistmentShim);
enlistment.EnlistmentShim = enlistmentShim;
}
catch (COMException comException)
{
// There is no string mapping for XACT_E_TOOMANY_ENLISTMENTS, so we need to do it here.
if (comException.ErrorCode == OletxHelper.XACT_E_TOOMANY_ENLISTMENTS)
{
throw TransactionException.Create(
SR.OletxTooManyEnlistments,
comException,
enlistment == null ? Guid.Empty : enlistment.DistributedTxId);
}
OletxTransactionManager.ProxyException(comException);
throw;
}
}
enlistmentSucceeded = true;
}
finally
{
if (!enlistmentSucceeded &&
(enlistmentOptions & EnlistmentOptions.EnlistDuringPrepareRequired) != 0 &&
undecidedEnlistmentsIncremented)
{
oletxTransaction.RealTransaction.DecrementUndecidedEnlistments();
}
}
return(enlistment);
}
