Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / tx / System / Transactions / EnlistmentState.cs / 1305376 / EnlistmentState.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Transactions { using System; using System.Diagnostics; using System.Globalization; using System.Threading; using System.Transactions.Diagnostics; // Base class for all enlistment states abstract class EnlistmentState { internal abstract void EnterState( InternalEnlistment enlistment ); internal static EnlistmentStatePromoted _enlistmentStatePromoted; // Object for synchronizing access to the entire class( avoiding lock( typeof( ... )) ) private static object classSyncObject; // Helper object for static synchronization private static object ClassSyncObject { get { if( classSyncObject == null ) { object o = new object(); Interlocked.CompareExchange( ref classSyncObject, o, null ); } return classSyncObject; } } internal static EnlistmentStatePromoted _EnlistmentStatePromoted { get { if (_enlistmentStatePromoted == null) { lock (ClassSyncObject) { if (_enlistmentStatePromoted == null) { EnlistmentStatePromoted temp = new EnlistmentStatePromoted(); Thread.MemoryBarrier(); _enlistmentStatePromoted = temp; } } } return _enlistmentStatePromoted; } } internal virtual void EnlistmentDone( InternalEnlistment enlistment ) { throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void Prepared( InternalEnlistment enlistment ) { throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void ForceRollback( InternalEnlistment enlistment, Exception e ) { throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void Committed( InternalEnlistment enlistment ) { throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void Aborted( InternalEnlistment enlistment, Exception e ) { throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void InDoubt( InternalEnlistment enlistment, Exception e ) { throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual byte[] RecoveryInformation( InternalEnlistment enlistment ) { throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void InternalAborted( InternalEnlistment enlistment ) { Debug.Assert( false, string.Format( null, "Invalid Event for InternalEnlistment State; Current State: {0}", this.GetType() )); throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void InternalCommitted( InternalEnlistment enlistment ) { Debug.Assert( false, string.Format( null, "Invalid Event for InternalEnlistment State; Current State: {0}", this.GetType() )); throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void InternalIndoubt( InternalEnlistment enlistment ) { Debug.Assert( false, string.Format( null, "Invalid Event for InternalEnlistment State; Current State: {0}", this.GetType() )); throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void ChangeStateCommitting( InternalEnlistment enlistment ) { Debug.Assert( false, string.Format( null, "Invalid Event for InternalEnlistment State; Current State: {0}", this.GetType() )); throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void ChangeStatePromoted( InternalEnlistment enlistment, IPromotedEnlistment promotedEnlistment ) { Debug.Assert( false, string.Format( null, "Invalid Event for InternalEnlistment State; Current State: {0}", this.GetType() )); throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void ChangeStateDelegated( InternalEnlistment enlistment ) { Debug.Assert( false, string.Format( null, "Invalid Event for InternalEnlistment State; Current State: {0}", this.GetType() )); throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void ChangeStatePreparing( InternalEnlistment enlistment ) { Debug.Assert( false, string.Format( null, "Invalid Event for InternalEnlistment State; Current State: {0}", this.GetType() )); throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } internal virtual void ChangeStateSinglePhaseCommit( InternalEnlistment enlistment ) { Debug.Assert( false, string.Format( null, "Invalid Event for InternalEnlistment State; Current State: {0}", this.GetType() )); throw TransactionException.CreateEnlistmentStateException( SR.GetString( SR.TraceSourceLtm ), null ); } } internal class EnlistmentStatePromoted : EnlistmentState { internal override void EnterState( InternalEnlistment enlistment ) { enlistment.State = this; } internal override void EnlistmentDone( InternalEnlistment enlistment ) { Monitor.Exit( enlistment.SyncRoot ); try { enlistment.PromotedEnlistment.EnlistmentDone(); } finally { #pragma warning disable 0618 //@ Monitor.Enter(enlistment.SyncRoot); #pragma warning restore 0618 } } internal override void Prepared( InternalEnlistment enlistment ) { Monitor.Exit( enlistment.SyncRoot ); try { enlistment.PromotedEnlistment.Prepared(); } finally { #pragma warning disable 0618 //@ Monitor.Enter(enlistment.SyncRoot); #pragma warning restore 0618 } } internal override void ForceRollback( InternalEnlistment enlistment, Exception e ) { Monitor.Exit( enlistment.SyncRoot ); try { enlistment.PromotedEnlistment.ForceRollback( e ); } finally { #pragma warning disable 0618 //@ Monitor.Enter(enlistment.SyncRoot); #pragma warning restore 0618 } } internal override void Committed( InternalEnlistment enlistment ) { Monitor.Exit( enlistment.SyncRoot ); try { enlistment.PromotedEnlistment.Committed(); } finally { #pragma warning disable 0618 //@ Monitor.Enter(enlistment.SyncRoot); #pragma warning restore 0618 } } internal override void Aborted( InternalEnlistment enlistment, Exception e ) { Monitor.Exit( enlistment.SyncRoot ); try { enlistment.PromotedEnlistment.Aborted( e ); } finally { #pragma warning disable 0618 //@ Monitor.Enter(enlistment.SyncRoot); #pragma warning restore 0618 } } internal override void InDoubt( InternalEnlistment enlistment, Exception e ) { Monitor.Exit( enlistment.SyncRoot ); try { enlistment.PromotedEnlistment.InDoubt( e ); } finally { #pragma warning disable 0618 //@ Monitor.Enter(enlistment.SyncRoot); #pragma warning restore 0618 } } internal override byte[] RecoveryInformation( InternalEnlistment enlistment ) { Monitor.Exit( enlistment.SyncRoot ); try { return enlistment.PromotedEnlistment.GetRecoveryInformation(); } finally { #pragma warning disable 0618 //@ Monitor.Enter(enlistment.SyncRoot); #pragma warning restore 0618 } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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