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 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 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); }