Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Workflow.Runtime/AmbientEnvironment.cs

@@ -0,0 +1,242 @@
+#region Imports
+
+using System;
+using System.Xml;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Threading;
+using System.Transactions;
+using System.Reflection;
+using System.Workflow.ComponentModel;
+using System.Workflow.Runtime.Hosting;
+using System.Diagnostics;
+
+#endregion
+
+namespace System.Workflow.Runtime
+{
+    #region Class AmbientEnvironment
+
+    internal abstract class AmbientEnvironment : IDisposable
+    {
+        /// <summary>
+        /// Indicates that the value of a static field is unique for each thread
+        /// CLR Perf suggests using this attribute over the slot approach.
+        /// </summary>
+        [ThreadStatic()]
+        static EnvWrapper threadData;
+
+        readonly object _prevEnv;
+        readonly int _prevRC;
+
+        protected AmbientEnvironment(object env)
+        {
+            if (threadData == null)
+            {
+                //Setting TLS for the first time
+                threadData = new EnvWrapper();
+            }
+
+            threadData.Push(env, out _prevEnv, out _prevRC);
+        }
+
+        void IDisposable.Dispose()
+        {
+            Debug.Assert(null != threadData);
+            threadData.Pop(_prevEnv, _prevRC);
+            if (_prevRC == 0)
+            {
+                threadData = null;
+            }
+        }
+
+        internal static object Retrieve()
+        {
+            if (threadData != null)
+                return threadData.Retrieve();
+            else
+                return null;
+        }
+
+        private class EnvWrapper
+        {
+            int _rc;
+
+            object _currEnv;
+
+            internal void Push(object env, out object prevEnv, out int prevRc)
+            {
+                Debug.Assert(_rc >= 0);
+                prevEnv = _currEnv;
+                prevRc = _rc;
+                _rc++;
+                _currEnv = env;
+            }
+
+            internal void Pop(object prevEnv, int prevRC)
+            {
+                Debug.Assert(_rc > 0);
+                _rc--;
+                _currEnv = prevEnv;
+                if (_rc != prevRC)
+                {
+                    Debug.Assert(false);
+                    //
+                }
+            }
+
+            internal object Retrieve()
+            {
+                Debug.Assert(_rc > 0);
+                return _currEnv;
+            }
+        }
+    }
+
+    #endregion
+
+    #region Class ServiceEnvironment
+
+    // This class presents the transactional view of a WF instance:
+    // mainly the current batch in transaction, and NOT the runtime view
+    // of currently executing activity.
+    internal sealed class ServiceEnvironment : AmbientEnvironment
+    {
+        internal static readonly Guid debuggerThreadGuid = new Guid("54D747AE-5CC6-4171-95C8-0A8C40443915");
+
+        internal ServiceEnvironment(Activity currentActivity)
+            : base(currentActivity)
+        {
+            GC.SuppressFinalize(this);
+        }
+
+        internal static IWorkBatch WorkBatch
+        {
+            get
+            {
+                Activity currentActivity = ServiceEnvironment.CurrentActivity;
+                if (currentActivity == null)
+                    return null;
+                else
+                    return (IWorkBatch)currentActivity.GetValue(WorkflowExecutor.TransientBatchProperty);
+            }
+        }
+
+        internal static Guid WorkflowInstanceId
+        {
+            get
+            {
+                Activity currentActivity = ServiceEnvironment.CurrentActivity;
+                if (currentActivity == null)
+                    return Guid.Empty;
+
+                return ((Guid)ContextActivityUtils.RootContextActivity(currentActivity).GetValue(WorkflowExecutor.WorkflowInstanceIdProperty));
+            }
+        }
+
+        internal static WorkflowQueuingService QueuingService
+        {
+            get
+            {
+                Activity currentActivity = ServiceEnvironment.CurrentActivity;
+
+                // fetch workflow executor
+                IWorkflowCoreRuntime workflowExecutor = null;
+                if (currentActivity != null)
+                    workflowExecutor = ContextActivityUtils.RetrieveWorkflowExecutor(currentActivity);
+
+                while (currentActivity != null)
+                {
+                    if (currentActivity == workflowExecutor.CurrentAtomicActivity)
+                    {
+                        TransactionalProperties transactionalProperties = (TransactionalProperties)currentActivity.GetValue(WorkflowExecutor.TransactionalPropertiesProperty);
+                        if (transactionalProperties != null)
+                        {
+                            if (transactionalProperties.LocalQueuingService != null)
+                            {
+                                WorkflowQueuingService queuingService = transactionalProperties.LocalQueuingService;
+                                return queuingService; // return local queuing service
+                            }
+                        }
+                    }
+                    currentActivity = currentActivity.Parent;
+                }
+                return null;
+            }
+        }
+
+        // DO NOT change this to internal/public
+        // Technically we only want to store the Batch in the TLS, 
+        // but because we also want the queueing service and instId, 
+        // we are storing the object encapsulating all the info.
+        // The service environment only represents the transactional view:
+        // the current batch; and not the current executing view:
+        // e.g. some caller/caller, send/receive scenarios where 
+        // we want the current batch to be the caller's so this activity 
+        // does not reflect the executing activity (the callee).
+        private static Activity CurrentActivity
+        {
+            get
+            {
+                object o = AmbientEnvironment.Retrieve();
+                return o as Activity;
+            }
+        }
+
+        internal static bool IsInServiceThread(Guid instanceId)
+        {
+            System.Diagnostics.Debug.Assert(instanceId != Guid.Empty, "IsInServiceThread expects valid guid.");
+            if (WorkflowInstanceId == instanceId)
+                return true;
+
+            return DebuggerThreadMarker.IsInDebuggerThread();
+        }
+    }
+
+    #endregion
+
+    #region Class DebuggerThreadMarker
+
+    internal class DebuggerThreadMarker : AmbientEnvironment
+    {
+        public DebuggerThreadMarker()
+            : base(new object())
+        {
+        }
+
+        internal static bool IsInDebuggerThread()
+        {
+            return AmbientEnvironment.Retrieve() != null;
+        }
+    }
+
+    #endregion
+
+    #region Class RuntimeEnvironment
+
+    internal class RuntimeEnvironment : IDisposable
+    {
+        [ThreadStatic()]
+        static WorkflowRuntime workflowRuntime;
+
+        public RuntimeEnvironment(WorkflowRuntime runtime)
+        {
+            workflowRuntime = runtime;
+        }
+
+        internal static WorkflowRuntime CurrentRuntime
+        {
+            get
+            {
+                return RuntimeEnvironment.workflowRuntime;
+            }
+        }
+        void IDisposable.Dispose()
+        {
+            workflowRuntime = null;
+        }
+    }
+
+    #endregion
+}

mcs/class/referencesource/System.Workflow.Runtime/AssemblyInfo.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Security.Permissions;
+using System.Workflow.ComponentModel.Serialization;
+
+#pragma warning disable 618
+[assembly: SecurityPermissionAttribute(SecurityAction.RequestMinimum, Flags = SecurityPermissionFlag.Execution | SecurityPermissionFlag.SerializationFormatter)]
+#pragma warning restore 618
+
+[assembly: XmlnsDefinition("http://schemas.microsoft.com/winfx/2006/xaml/workflow", "System.Workflow.Runtime")]
+[assembly: XmlnsDefinition("http://schemas.microsoft.com/winfx/2006/xaml/workflow", "System.Workflow.Runtime.Configuration")]
+[assembly: XmlnsDefinition("http://schemas.microsoft.com/winfx/2006/xaml/workflow", "System.Workflow.Runtime.Hosting")]
+[assembly: XmlnsDefinition("http://schemas.microsoft.com/winfx/2006/xaml/workflow", "System.Workflow.Runtime.Tracking")]
+
+[assembly: XmlnsPrefix("http://schemas.microsoft.com/winfx/2006/xaml/workflow", "wf")]
+[assembly: InternalsVisibleTo("System.WorkflowServices, PublicKey=0024000004800000940000000602000000240000525341310004000001000100b5fc90e7027f67871e773a8fde8938c81dd402ba65b9201d60593e96c492651e889cc13f1415ebb53fac1131ae0bd333c5ee6021672d9718ea31a8aebd0da0072f25d87dba6fc90ffd598ed4da35e44c398c454307e8e33b8426143daec9f596836f97c8f74750e5975c64e2189f45def46b2a2b1247adc3652bf5c308055da9")]
+[assembly: InternalsVisibleTo("System.ServiceModel.Activities, PublicKey=0024000004800000940000000602000000240000525341310004000001000100b5fc90e7027f67871e773a8fde8938c81dd402ba65b9201d60593e96c492651e889cc13f1415ebb53fac1131ae0bd333c5ee6021672d9718ea31a8aebd0da0072f25d87dba6fc90ffd598ed4da35e44c398c454307e8e33b8426143daec9f596836f97c8f74750e5975c64e2189f45def46b2a2b1247adc3652bf5c308055da9")]
+

mcs/class/referencesource/System.Workflow.Runtime/Common/Shared/DigestComparer.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Diagnostics;
+using System.Collections.Generic;
+using System.Globalization;
+
+internal class DigestComparer : IComparer<byte[]>, IEqualityComparer<byte[]>
+{
+    int IComparer<byte[]>.Compare(byte[] digest1, byte[] digest2)
+    {
+        Debug.Assert(digest1.Length == 16 && digest2.Length == 16, "Invalid digest!");
+
+        for (int index = 0; index < 16; index++)
+            if (digest1[index] != digest2[index])
+                return (digest1[index] < digest2[index]) ? -1 : 1;
+
+        return 0;
+    }
+
+    bool IEqualityComparer<byte[]>.Equals(byte[] digest1, byte[] digest2)
+    {
+        Debug.Assert(digest1.Length == 16 && digest2.Length == 16, "Invalid digest!");
+
+        for (int index = 0; index < 16; index++)
+            if (digest1[index] != digest2[index])
+                return false;
+
+        return true;
+    }
+
+    int IEqualityComparer<byte[]>.GetHashCode(byte[] checksumBytes)
+    {
+        return GetMD5DigestString(checksumBytes).GetHashCode();
+    }
+
+    internal static string GetMD5DigestString(byte[] md5Digest)
+    {
+        return string.Format(CultureInfo.InvariantCulture, "{0}{1}{2}{3}{4}{5}{6}{7}{8}{9}{10}{11}{12}{13}{14}{15}", md5Digest[0].ToString("X2", CultureInfo.InvariantCulture), md5Digest[1].ToString("X2", CultureInfo.InvariantCulture), md5Digest[2].ToString("X2", CultureInfo.InvariantCulture), md5Digest[3].ToString("X2", CultureInfo.InvariantCulture), md5Digest[4].ToString("X2", CultureInfo.InvariantCulture), md5Digest[5].ToString("X2", CultureInfo.InvariantCulture), md5Digest[6].ToString("X2", CultureInfo.InvariantCulture), md5Digest[7].ToString("X2", CultureInfo.InvariantCulture), md5Digest[8].ToString("X2", CultureInfo.InvariantCulture), md5Digest[9].ToString("X2", CultureInfo.InvariantCulture), md5Digest[10].ToString("X2", CultureInfo.InvariantCulture), md5Digest[11].ToString("X2", CultureInfo.InvariantCulture), md5Digest[12].ToString("X2", CultureInfo.InvariantCulture), md5Digest[13].ToString("X2", CultureInfo.InvariantCulture), md5Digest[14].ToString("X2", CultureInfo.InvariantCulture), md5Digest[15].ToString("X2", CultureInfo.InvariantCulture));
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/Configuration/WorkflowRuntimeSection.cs

@@ -0,0 +1,117 @@
+//------------------------------------------------------------------------------
+// <copyright file="WorkflowRuntimeSection.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Configuration;
+using System.Collections.Specialized;
+
+using System.Workflow.Runtime;
+
+namespace System.Workflow.Runtime.Configuration
+{
+    /// <summary> Configuration settings for the WorkflowRuntime </summary>
+    /// <remarks><para>
+    /// Services that are automatically instantiated must implement one of the 
+    /// following constructors:
+    /// <code>
+    /// public MyService();
+    /// public MyService(NameValueCollection);
+    /// public MyService(WorkflowRuntime);
+    /// public MyService(WorkflowRuntime, NameValueCollection);
+    /// </code>
+    /// </para></remarks>
+    /// <see cref="System.Workflow.Runtime.Hosting.WorkflowRuntime"/>
+    /// <see cref="System.Workflow.Runtime.Hosting.WorkflowRuntimeServiceSettings"/>
+    /// <see cref="System.Workflow.Runtime.Hosting.WorkflowRuntimeServiceSettingsCollection"/>
+    /// <see cref="System.Configuration.ConfigurationSection"/>
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public class WorkflowRuntimeSection : ConfigurationSection
+    {
+        private const string _services = "Services";
+        private const string commonParametersSectionName = "CommonParameters";
+        private const string _name = "Name";
+        private const string _validateOnCreate = "ValidateOnCreate";
+        private const string _enablePerfCounters = "EnablePerformanceCounters";
+        private const string _definitionCacheCapacity = "WorkflowDefinitionCacheCapacity";
+
+        internal const string DefaultSectionName = "WorkflowRuntime";
+
+        /// <summary> The capacity of WorkflowDefinition cache </summary>
+        [ConfigurationProperty(_definitionCacheCapacity, DefaultValue = 0)]
+        public int WorkflowDefinitionCacheCapacity
+        {
+            get
+            {
+                return (int)base[_definitionCacheCapacity];
+            }
+            set
+            {
+                base[_definitionCacheCapacity] = value;
+            }
+        }
+
+        /// <summary> The name of the service container </summary>
+        [ConfigurationProperty(_name, DefaultValue = "")]
+        public string Name
+        {
+            get
+            {
+                return (string)base[_name];
+            }
+            set
+            {
+                base[_name] = value;
+            }
+        }
+
+        [ConfigurationProperty(_validateOnCreate, DefaultValue = true)]
+        public bool ValidateOnCreate
+        {
+            get
+            {
+                return (bool)base[_validateOnCreate];
+            }
+            set
+            {
+                base[_validateOnCreate] = value;
+            }
+        }
+
+        [ConfigurationProperty(_enablePerfCounters, DefaultValue = true)]
+        public bool EnablePerformanceCounters
+        {
+            get
+            {
+                return (bool)base[_enablePerfCounters];
+            }
+            set
+            {
+                base[_enablePerfCounters] = value;
+            }
+        }
+
+
+        /// <summary> The providers to be instantiated by the service container. </summary>
+        [ConfigurationProperty(_services, DefaultValue = null)]
+        public WorkflowRuntimeServiceElementCollection Services
+        {
+            get
+            {
+                return (WorkflowRuntimeServiceElementCollection)base[_services];
+            }
+        }
+
+        /// <summary> The resources to be shared by the services. </summary>
+        [ConfigurationProperty(WorkflowRuntimeSection.commonParametersSectionName, DefaultValue = null)]
+        public NameValueConfigurationCollection CommonParameters
+        {
+            get
+            {
+                return (NameValueConfigurationCollection)base[WorkflowRuntimeSection.commonParametersSectionName];
+            }
+        }
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/Configuration/WorkflowRuntimeServiceElement.cs

@@ -0,0 +1,58 @@
+//------------------------------------------------------------------------------
+// <copyright file="WorkflowRuntimeServiceSettings.cs" company="Microsoft">
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Configuration;
+using System.Collections.Specialized;
+
+
+namespace System.Workflow.Runtime.Configuration
+{
+    /// <summary> Configuration element for a WorkflowRuntime service </summary>
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public class WorkflowRuntimeServiceElement : ConfigurationElement
+    {
+
+        /// <summary> Collection of service-specific name-value pairs </summary>
+        private NameValueCollection _parameters = new NameValueCollection();
+
+        private const string _type = "type";
+
+        public NameValueCollection Parameters
+        {
+            get { return _parameters; }
+        }
+
+        public WorkflowRuntimeServiceElement()
+        {
+        }
+
+        /// <summary> The assembly-qualified type name of the service </summary>
+        /// <remarks> Type is also used as the collection key in WorkflowRuntimeServiceSettingsCollections </remarks>
+        [ConfigurationProperty(_type, DefaultValue = null)]
+        public string Type
+        {
+            get
+            {
+                return (string)base[_type];
+            }
+            set
+            {
+                if (value == null)
+                    throw new ArgumentNullException("value");
+
+                base[_type] = value;
+            }
+        }
+
+
+        protected override bool OnDeserializeUnrecognizedAttribute(string name, string value)
+        {
+            _parameters.Add(name, value);
+            return true;
+        }
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/Configuration/WorkflowRuntimeServiceElementCollection.cs

@@ -0,0 +1,43 @@
+//------------------------------------------------------------------------------
+// <copyright file="WorkflowRuntimeServiceSettingsCollection.cs" company="Microsoft">
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Configuration;
+
+
+namespace System.Workflow.Runtime.Configuration
+{
+    /// <summary> Collection of WorkflowRuntimeServiceSettings used by WorkflowRuntimeSection </summary>
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public class WorkflowRuntimeServiceElementCollection : ConfigurationElementCollection
+    {
+        /// <summary> Creates a new WorkflowRuntimeServiceSettings object </summary>
+        /// <returns> An empty WorkflowRuntimeServiceSettings </returns>
+        protected override ConfigurationElement CreateNewElement()
+        {
+            return new WorkflowRuntimeServiceElement();
+        }
+
+        /// <summary> Returns the Type of the WorkflowRuntimeServiceSettings object </summary>
+        /// <param name="settings"> The WorkflowRuntimeServiceSettings </param>
+        /// <returns> The Type name of the WorkflowRuntimeServiceSettings </returns>
+        protected override object GetElementKey(ConfigurationElement settings)
+        {
+            return ((WorkflowRuntimeServiceElement)settings).Type;
+        }
+
+        /// <summary> Adds a WorkflowRuntimeServiceSettings object to this collection </summary>
+        /// <param name="settings"> The settings object to add </param>
+        public void Add(WorkflowRuntimeServiceElement serviceSettings)
+        {
+            if (serviceSettings == null)
+                throw new ArgumentNullException("serviceSettings");
+
+            base.BaseAdd(serviceSettings);
+        }
+    }
+}
+

mcs/class/referencesource/System.Workflow.Runtime/ContextActivityUtils.cs

@@ -0,0 +1,65 @@
+#pragma warning disable 1634, 1691
+using System;
+using System.Globalization;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Collections.ObjectModel;
+using System.ComponentModel.Design.Serialization;
+using System.Diagnostics;
+using System.IO;
+using System.Reflection;
+using System.Text;
+using System.Threading;
+using System.Xml;
+using System.Transactions;
+using SES = System.EnterpriseServices;
+using System.Workflow.ComponentModel;
+using System.Workflow.Runtime.Hosting;
+
+namespace System.Workflow.Runtime
+{
+    #region ContextActivityUtils Class
+
+    internal static class ContextActivityUtils
+    {
+        internal static int ContextId(Activity activity)
+        {
+            return ((ActivityExecutionContextInfo)ContextActivity(activity).GetValue(Activity.ActivityExecutionContextInfoProperty)).ContextId;
+        }
+
+        internal static Activity ContextActivity(Activity activity)
+        {
+            Activity contextActivity = activity;
+            while (contextActivity != null && contextActivity.GetValue(Activity.ActivityExecutionContextInfoProperty) == null)
+                contextActivity = contextActivity.Parent;
+            return contextActivity;
+        }
+        internal static Activity ParentContextActivity(Activity activity)
+        {
+            Activity contextActivity = ContextActivity(activity);
+            ActivityExecutionContextInfo executionContextInfo = (ActivityExecutionContextInfo)contextActivity.GetValue(Activity.ActivityExecutionContextInfoProperty);
+            if (executionContextInfo.ParentContextId == -1)
+                return null;
+
+            return RetrieveWorkflowExecutor(activity).GetContextActivityForId(executionContextInfo.ParentContextId);
+        }
+        internal static IWorkflowCoreRuntime RetrieveWorkflowExecutor(Activity activity)
+        {
+            // fetch workflow executor
+            IWorkflowCoreRuntime workflowExecutor = null;
+            Activity rootActivity = activity;
+            while (rootActivity != null && rootActivity.Parent != null)
+                rootActivity = rootActivity.Parent;
+            if (rootActivity != null)
+                workflowExecutor = (IWorkflowCoreRuntime)rootActivity.GetValue(WorkflowExecutor.WorkflowExecutorProperty);
+
+            return workflowExecutor;
+        }
+        internal static Activity RootContextActivity(Activity activity)
+        {
+            return RetrieveWorkflowExecutor(activity).RootActivity;
+        }
+    }
+    #endregion
+}

mcs/class/referencesource/System.Workflow.Runtime/CorrelationToken.cs

@@ -0,0 +1,371 @@
+using System;
+using System.Xml;
+using System.ComponentModel;
+using System.ComponentModel.Design;
+using System.ComponentModel.Design.Serialization;
+using System.Reflection;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+using System.Runtime.Serialization;
+using System.Workflow.ComponentModel;
+using System.Workflow.ComponentModel.Design;
+using System.Workflow.ComponentModel.Serialization;
+using System.Workflow.Runtime;
+using System.Globalization;
+
+namespace System.Workflow.Runtime
+{
+    [DesignerSerializer(typeof(DependencyObjectCodeDomSerializer), typeof(CodeDomSerializer))]
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public sealed class CorrelationToken : DependencyObject, IPropertyValueProvider
+    {
+        internal static readonly DependencyProperty NameProperty = DependencyProperty.Register("Name", typeof(string), typeof(CorrelationToken), new PropertyMetadata(DependencyPropertyOptions.Metadata, new Attribute[] { new BrowsableAttribute(false) }));
+        internal static readonly DependencyProperty OwnerActivityNameProperty = DependencyProperty.Register("OwnerActivityName", typeof(string), typeof(CorrelationToken), new PropertyMetadata(DependencyPropertyOptions.Metadata, new Attribute[] { new TypeConverterAttribute(typeof(PropertyValueProviderTypeConverter)) }));
+
+        // instance properties
+        internal static readonly DependencyProperty PropertiesProperty = DependencyProperty.Register("Properties", typeof(ICollection<CorrelationProperty>), typeof(CorrelationToken), new PropertyMetadata(new Attribute[] { new BrowsableAttribute(false), new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden) }));
+        internal static readonly DependencyProperty SubscriptionsProperty = DependencyProperty.Register("Subscriptions", typeof(IList<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>>), typeof(CorrelationToken));
+        internal static readonly DependencyProperty InitializedProperty = DependencyProperty.Register("Initialized", typeof(bool), typeof(CorrelationToken), new PropertyMetadata(false, new Attribute[] { new BrowsableAttribute(false), new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden) }));
+
+        public CorrelationToken()
+        {
+        }
+
+        public CorrelationToken(string name)
+        {
+            this.Name = name;
+        }
+
+        [Browsable(false)]
+        public string Name
+        {
+            get
+            {
+                return (string)GetValue(NameProperty);
+            }
+            set
+            {
+                SetValue(NameProperty, value);
+            }
+        }
+
+        [TypeConverter(typeof(PropertyValueProviderTypeConverter))]
+        public string OwnerActivityName
+        {
+            get
+            {
+                return (string)GetValue(OwnerActivityNameProperty);
+            }
+
+            set
+            {
+                SetValue(OwnerActivityNameProperty, value);
+            }
+        }
+
+        [Browsable(false)]
+        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+        public ICollection<CorrelationProperty> Properties
+        {
+            get
+            {
+                return GetValue(PropertiesProperty) as ICollection<CorrelationProperty>;
+            }
+        }
+
+        [Browsable(false)]
+        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+        public bool Initialized
+        {
+            get
+            {
+                return (bool)GetValue(InitializedProperty);
+            }
+        }
+
+        ICollection IPropertyValueProvider.GetPropertyValues(ITypeDescriptorContext context)
+        {
+            StringCollection names = new StringCollection();
+            if (string.Equals(context.PropertyDescriptor.Name, "OwnerActivityName", StringComparison.Ordinal))
+            {
+                ISelectionService selectionService = context.GetService(typeof(ISelectionService)) as ISelectionService;
+                if (selectionService != null && selectionService.SelectionCount == 1 && selectionService.PrimarySelection is Activity)
+                {
+                    Activity currentActivity = selectionService.PrimarySelection as Activity;
+                    foreach (Activity activity in GetEnclosingCompositeActivities(currentActivity))
+                    {
+                        string activityId = activity.QualifiedName;
+                        if (!names.Contains(activityId))
+                            names.Add(activityId);
+                    }
+                }
+            }
+            return names;
+        }
+
+        public void Initialize(Activity activity, ICollection<CorrelationProperty> propertyValues)
+        {
+            if (this.Initialized)
+                throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, ExecutionStringManager.CorrelationAlreadyInitialized, this.Name));
+
+            SetValue(PropertiesProperty, propertyValues);
+
+            // fire correlation initialized events
+            CorrelationTokenEventArgs eventArgs = new CorrelationTokenEventArgs(this, true);
+            IList<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>> subscribers = GetValue(SubscriptionsProperty) as IList<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>>;
+            if (subscribers != null)
+            {
+                foreach (ActivityExecutorDelegateInfo<CorrelationTokenEventArgs> subscriber in subscribers)
+                {
+                    subscriber.InvokeDelegate(ContextActivityUtils.ContextActivity(activity), eventArgs, true, false);
+                }
+            }
+            SetValue(InitializedProperty, true);
+            WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 0, "CorrelationToken initialized for {0} owner activity {1} ", this.Name, this.OwnerActivityName);
+        }
+
+        internal void Uninitialize(Activity activity)
+        {
+            SetValue(PropertiesProperty, null);
+
+            // fire correlation uninitialized events
+            CorrelationTokenEventArgs eventArgs = new CorrelationTokenEventArgs(this, false);
+            IList<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>> subscribers = GetValue(SubscriptionsProperty) as IList<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>>;
+            if (subscribers != null)
+            {
+                ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>[] clonedSubscribers = new ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>[subscribers.Count];
+                subscribers.CopyTo(clonedSubscribers, 0);
+                foreach (ActivityExecutorDelegateInfo<CorrelationTokenEventArgs> subscriber in clonedSubscribers)
+                {
+                    subscriber.InvokeDelegate(ContextActivityUtils.ContextActivity(activity), eventArgs, true, false);
+                }
+            }
+            //SetValue(InitializedProperty, false);
+            WorkflowTrace.Runtime.TraceEvent(TraceEventType.Information, 0, "CorrelationToken Uninitialized for {0} owner activity {1}", this.Name, this.OwnerActivityName);
+        }
+
+        public void SubscribeForCorrelationTokenInitializedEvent(Activity activity, IActivityEventListener<CorrelationTokenEventArgs> dataChangeListener)
+        {
+            if (dataChangeListener == null)
+                throw new ArgumentNullException("dataChangeListener");
+            if (activity == null)
+                throw new ArgumentNullException("activity");
+
+            ActivityExecutorDelegateInfo<CorrelationTokenEventArgs> subscriber =
+                new ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>(dataChangeListener,
+                ContextActivityUtils.ContextActivity(activity), true);
+
+            IList<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>> subscriptions = GetValue(SubscriptionsProperty) as IList<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>>;
+            if (subscriptions == null)
+            {
+                subscriptions = new List<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>>();
+                SetValue(SubscriptionsProperty, subscriptions);
+            }
+
+            subscriptions.Add(subscriber);
+        }
+
+        public void UnsubscribeFromCorrelationTokenInitializedEvent(Activity activity, IActivityEventListener<CorrelationTokenEventArgs> dataChangeListener)
+        {
+            if (dataChangeListener == null)
+                throw new ArgumentNullException("dataChangeListener");
+            if (activity == null)
+                throw new ArgumentNullException("activity");
+
+            ActivityExecutorDelegateInfo<CorrelationTokenEventArgs> subscriber =
+                new ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>(dataChangeListener,
+                ContextActivityUtils.ContextActivity(activity), true);
+
+            IList<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>> subscriptions = GetValue(SubscriptionsProperty) as IList<ActivityExecutorDelegateInfo<CorrelationTokenEventArgs>>;
+            if (subscriptions != null)
+            {
+                subscriptions.Remove(subscriber);
+            }
+        }
+
+        private static IEnumerable GetEnclosingCompositeActivities(Activity startActivity)
+        {
+            Activity currentActivity = null;
+            Stack<Activity> activityStack = new Stack<Activity>();
+            activityStack.Push(startActivity);
+
+            while ((currentActivity = activityStack.Pop()) != null)
+            {
+                if ((typeof(CompositeActivity).IsAssignableFrom(currentActivity.GetType())) && currentActivity.Enabled)
+                {
+                    yield return currentActivity;
+                }
+                activityStack.Push(currentActivity.Parent);
+            }
+            yield break;
+        }
+    }
+
+    [Serializable]
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public sealed class CorrelationTokenCollection : KeyedCollection<string, CorrelationToken>
+    {
+        [SuppressMessage("Microsoft.Security", "CA2104:DoNotDeclareReadOnlyMutableReferenceTypes",
+            Justification = "Design has been approved.  This is a false positive. DependencyProperty is an immutable type.")]
+        public static readonly DependencyProperty CorrelationTokenCollectionProperty = DependencyProperty.RegisterAttached("CorrelationTokenCollection", typeof(CorrelationTokenCollection), typeof(CorrelationTokenCollection));
+
+        public CorrelationTokenCollection()
+        {
+        }
+
+        public CorrelationToken GetItem(string key)
+        {
+            return this[key];
+        }
+
+        protected override string GetKeyForItem(CorrelationToken item)
+        {
+            return item.Name;
+        }
+        protected override void ClearItems()
+        {
+            base.ClearItems();
+        }
+        protected override void InsertItem(int index, CorrelationToken item)
+        {
+            if (item == null)
+                throw new ArgumentNullException("item");
+
+            base.InsertItem(index, item);
+        }
+        protected override void RemoveItem(int index)
+        {
+            base.RemoveItem(index);
+        }
+        protected override void SetItem(int index, CorrelationToken item)
+        {
+            if (item == null)
+                throw new ArgumentNullException("item");
+
+            base.SetItem(index, item);
+        }
+
+        internal static void UninitializeCorrelationTokens(Activity activity)
+        {
+            CorrelationTokenCollection collection = activity.GetValue(CorrelationTokenCollectionProperty) as CorrelationTokenCollection;
+            if (collection != null)
+            {
+                foreach (CorrelationToken correlator in collection)
+                {
+                    correlator.Uninitialize(activity);
+                }
+            }
+        }
+
+        public static CorrelationToken GetCorrelationToken(Activity activity, string correlationTokenName, string ownerActivityName)
+        {
+            if (null == correlationTokenName)
+                throw new ArgumentNullException("correlationTokenName");
+            if (null == ownerActivityName)
+                throw new ArgumentNullException("ownerActivityName");
+            if (null == activity)
+                throw new ArgumentNullException("activity");
+
+            Activity contextActivity = ContextActivityUtils.ContextActivity(activity);
+            Activity owner = null;
+
+            if (!String.IsNullOrEmpty(ownerActivityName))
+            {
+                while (contextActivity != null)
+                {
+                    owner = contextActivity.GetActivityByName(ownerActivityName, true);
+                    if (owner != null)
+                        break;
+                    contextActivity = ContextActivityUtils.ParentContextActivity(contextActivity);
+                }
+
+                if (owner == null)
+                    owner = Helpers.ParseActivityForBind(activity, ownerActivityName);
+            }
+
+            if (owner == null)
+                throw new InvalidOperationException(ExecutionStringManager.OwnerActivityMissing);
+
+            CorrelationTokenCollection collection = owner.GetValue(CorrelationTokenCollectionProperty) as CorrelationTokenCollection;
+            if (collection == null)
+            {
+                collection = new CorrelationTokenCollection();
+                owner.SetValue(CorrelationTokenCollection.CorrelationTokenCollectionProperty, collection);
+            }
+
+            if (!collection.Contains(correlationTokenName))
+            {
+                collection.Add(new CorrelationToken(correlationTokenName));
+            }
+            return collection[correlationTokenName];
+        }
+    }
+
+    [Serializable]
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public class CorrelationProperty
+    {
+        private object value = null;
+        private string name;
+
+        public CorrelationProperty(string name, object value)
+        {
+            if (null == name)
+            {
+                throw new ArgumentNullException("name");
+            }
+
+            this.name = name;
+            this.value = value;
+        }
+
+        public object Value
+        {
+            get
+            {
+                return this.value;
+            }
+        }
+
+        public string Name
+        {
+            get
+            {
+                return this.name;
+            }
+        }
+    }
+
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public sealed class CorrelationTokenEventArgs : EventArgs
+    {
+        CorrelationToken correlator;
+        bool initialized;
+
+        internal CorrelationTokenEventArgs(CorrelationToken correlator, bool initialized)
+        {
+            this.correlator = correlator;
+            this.initialized = initialized;
+        }
+
+        public bool IsInitializing
+        {
+            get
+            {
+                return this.initialized;
+            }
+        }
+
+        public CorrelationToken CorrelationToken
+        {
+            get
+            {
+                return this.correlator;
+            }
+        }
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/CreationContext.cs

@@ -0,0 +1,61 @@
+#region Imports
+
+using System;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Collections.ObjectModel;
+using System.Configuration;
+using System.Reflection;
+using System.Threading;
+using System.Globalization;
+using System.IO;
+using System.Workflow.Runtime.Hosting;
+using System.Workflow.Runtime.Configuration;
+using System.Workflow.ComponentModel;
+using System.Workflow.Runtime.Tracking;
+using System.Workflow.ComponentModel.Compiler;
+using System.Xml;
+using System.Workflow.Runtime.DebugEngine;
+using System.Workflow.ComponentModel.Serialization;
+using System.ComponentModel.Design;
+using System.ComponentModel.Design.Serialization;
+
+#endregion
+
+namespace System.Workflow.Runtime
+{
+
+    internal sealed class CreationContext
+    {
+        internal Type Type;
+        internal XmlReader XomlReader;
+        internal XmlReader RulesReader;
+        internal WorkflowExecutor InvokerExecutor;
+        internal string InvokeActivityID;
+        internal Dictionary<string, object> Args;
+        internal bool IsActivation;
+        internal bool Created;
+
+        internal CreationContext(Type type, WorkflowExecutor invokerExec, string invokeActivityID, Dictionary<string, object> args)
+        {
+            Type = type;
+            InvokerExecutor = invokerExec;
+            InvokeActivityID = invokeActivityID;
+            Args = args;
+            IsActivation = true;
+        }
+
+        internal CreationContext(XmlReader xomlReader, XmlReader rulesReader, Dictionary<string, object> args)
+        {
+            XomlReader = xomlReader;
+            RulesReader = rulesReader;
+            InvokerExecutor = null;
+            InvokeActivityID = null;
+            Args = args;
+            IsActivation = true;
+        }
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/DbRetry.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading;
+
+namespace System.Workflow.Runtime
+{
+    internal class DbRetry
+    {
+        private const short _defaultMaxRetries = 20;
+        private const int _defaultRetrySleep = 2000;
+        private const short _spinCount = 3;
+
+        private short _maxRetries = _defaultMaxRetries;
+        private int _retrySleep = _defaultRetrySleep;
+        private bool _enableRetries = false;
+
+        protected DbRetry()
+        {
+        }
+
+        internal DbRetry(bool enableRetries)
+        {
+            _enableRetries = enableRetries;
+        }
+
+        internal short MaxRetries
+        {
+            get { return _maxRetries; }
+        }
+
+        internal bool TryDoRetry(ref short retryCount)
+        {
+            if (CanRetry(retryCount++))
+            {
+                RetrySleep(retryCount);
+                return true;
+            }
+            else
+                return false;
+        }
+
+        internal bool CanRetry(short retryCount)
+        {
+            if (!_enableRetries)
+                return false;
+
+            if (retryCount < _maxRetries)
+                return true;
+            else
+                return false;
+        }
+
+        internal void RetrySleep(short retryCount)
+        {
+            //
+            // For the first couple of retries just spin
+            // If we fail _spinCount times start then introduce a sleep
+            if (retryCount <= _spinCount)
+                return;
+
+            int sleep = _retrySleep * retryCount;
+            Thread.Sleep(sleep);
+        }
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/DebugEngine/ActivityHandlerDescriptor.cs

@@ -0,0 +1,22 @@
+// Copyright (c) Microsoft Corp., 2004. All rights reserved.
+#region Using directives
+
+using System;
+using System.Runtime.InteropServices;
+using System.Workflow.ComponentModel;
+using System.Workflow.ComponentModel.Design;
+
+#endregion
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+    [Serializable]
+    [StructLayout(LayoutKind.Sequential)]
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public struct ActivityHandlerDescriptor
+    {
+        [MarshalAs(UnmanagedType.BStr)]
+        public string Name;
+        public int Token;
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/DebugEngine/BreakSafeBase.cs

@@ -0,0 +1,133 @@
+// Copyright (c) Microsoft Corp., 2004. All rights reserved.
+#region Using directives
+
+using System;
+using System.Threading;
+
+#endregion
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+    //
+    // IMPORTANT: Do not edit this file without consulting Break Safe Synchronization.doc!
+    //
+    internal abstract class BreakSafeBase<T> where T : ICloneable, new()
+    {
+        #region Data members
+
+        private volatile object currentData; // object because type parameters instances cannot be volatile.
+        private T nonEEDataClone;
+        private volatile bool nonEEDataConsistent;
+        private volatile bool nonEEIgnoreUpdate;
+        private Mutex nonEELock;
+        private object controllerUpdateObject;
+        private int controllerManagedThreadId;
+
+        #endregion
+
+        #region Methods and properties
+
+        protected BreakSafeBase(int controllerManagedThreadId)
+        {
+            this.currentData = new T();
+            this.nonEEDataClone = default(T);
+            this.nonEEDataConsistent = false;
+            this.nonEEIgnoreUpdate = false;
+            this.nonEELock = new Mutex(false);
+            this.controllerManagedThreadId = controllerManagedThreadId;
+        }
+
+        private bool IsEECall
+        {
+            get
+            {
+                return Thread.CurrentThread.ManagedThreadId == this.controllerManagedThreadId;
+            }
+        }
+
+        protected object GetControllerUpdateObject()
+        {
+            return this.controllerUpdateObject;
+        }
+
+        protected void SetControllerUpdateObject(object updateObject)
+        {
+            // Ensure that the access to the variable this.controllerUpdateObject is exactly one instruction - StFld in this case.
+            this.controllerUpdateObject = updateObject;
+        }
+
+        protected T GetReaderData()
+        {
+            // Ensure that the access to the variable this.currentData is exactly one instruction - LdFld in this case.
+            object data = this.currentData;
+            return (T)data;
+        }
+
+        protected T GetWriterData()
+        {
+            if (IsEECall)
+            {
+                if (this.nonEEDataConsistent && this.nonEEIgnoreUpdate == false)
+                {
+                    // Modify the object referred to by this.currentData directly.
+                    return (T)this.currentData;
+                }
+                else
+                {
+                    // Clone and discard any non-EE update.
+                    this.nonEEIgnoreUpdate = true;
+                    return (T)((T)this.currentData).Clone();
+                }
+            }
+            else
+            {
+                // Reset the flag so that we can keep track of any concurrent EE updates.
+                this.nonEEIgnoreUpdate = false;
+
+                // Ensure that the access to the variable this.currentData is exactly one instruction - LdFld in this case.
+                object data = this.currentData;
+                return (T)((T)data).Clone();
+            }
+        }
+
+        protected void SaveData(T data)
+        {
+            if (IsEECall)
+                this.currentData = data;
+            else
+            {
+                // The non-EE clone is now in a consistent state.
+                this.nonEEDataClone = data;
+                this.nonEEDataConsistent = true;
+
+                this.controllerUpdateObject = null;
+
+                // If an EE call has already modified the data, it would have also performed current non-EE update
+                // when the debugger entered break mode. So discard the update. Asl ensure that the access to the 
+                // variable this.currentData is exactly one instruction - StFld in this case.
+                if (this.nonEEIgnoreUpdate == false)
+                    this.currentData = data;
+
+                // Clear the flag because we will clear the this.nonEEDataClone.
+                this.nonEEDataConsistent = false;
+                this.nonEEDataClone = default(T);
+            }
+        }
+
+        protected void Lock()
+        {
+            // Serialize non-EE calls and do not invoke synchronization primitives during FuncEval.
+            if (!IsEECall)
+                this.nonEELock.WaitOne();
+        }
+
+        protected void Unlock()
+        {
+            // Serialize non-EE calls and do not invoke synchronization primitives during FuncEval.
+            if (!IsEECall)
+                this.nonEELock.ReleaseMutex();
+        }
+
+        #endregion
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/DebugEngine/DebugControllerThread.cs

@@ -0,0 +1,209 @@
+#region Using directives
+
+using System;
+using System.Threading;
+using System.Reflection;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+using System.Globalization;
+using Microsoft.Win32;
+#endregion
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+    internal sealed class DebugControllerThread
+    {
+        #region Data members
+
+        private Thread controllerThread = null;
+        private int threadId = 0;
+        private ManualResetEvent threadInitializedEvent = null;
+        private volatile bool runThread = false;
+        private static readonly string ExpressionEvaluationFrameTypeName = "ExpressionEvaluationFrameTypeName";
+        #endregion
+
+        #region Methods
+
+        public DebugControllerThread()
+        {
+            this.threadInitializedEvent = new ManualResetEvent(false);
+            this.threadInitializedEvent.Reset();
+
+            this.controllerThread = new Thread(ControllerThreadFunction);
+            this.controllerThread.IsBackground = true;
+            this.controllerThread.Priority = ThreadPriority.Lowest;
+            this.controllerThread.Name = "__dct__";
+        }
+
+        public void RunThread(IInstanceTable instanceTable)
+        {
+            Debug.WriteLine(string.Format(CultureInfo.CurrentCulture, "WDE: DebugControllerThread.DebugControllerThread():"));
+            if (this.controllerThread == null)
+                return;
+
+            this.runThread = true;
+            this.controllerThread.Start(instanceTable);
+            this.threadInitializedEvent.WaitOne();
+        }
+
+        public void StopThread()
+        {
+            Debug.WriteLine(string.Format(CultureInfo.CurrentCulture, "WDE: DebugControllerThread.StopThread():"));
+
+            try
+            {
+                if (this.controllerThread != null)
+                {
+                    this.runThread = false;
+                    Thread.Sleep(10);
+
+                    // On x64 we put the debug controller thread to Sleep(Timeout.Infinite) in 
+                    // ExpressionEvaluationFunction. This thread needs to be started before it
+                    // a Join can execute.
+                    if (this.controllerThread.IsAlive && IntPtr.Size == 8)
+                    {
+                        while (this.controllerThread.ThreadState == System.Threading.ThreadState.WaitSleepJoin)
+                        {
+                            this.controllerThread.Start();
+                            this.controllerThread.Join();
+                        }
+                    }
+                    else
+                        this.controllerThread.Join();
+                }
+            }
+            catch (ThreadStateException)
+            {
+                // Ignore the ThreadStateException which will be thrown when StopThread() is called during 
+                // AppDomain unload.
+            }
+            finally
+            {
+                this.controllerThread = null;
+            }
+
+            this.controllerThread = null;
+            this.threadId = 0;
+            this.threadInitializedEvent = null;
+        }
+
+        private void ControllerThreadFunction(object instanceTable)
+        {
+            try
+            {
+                Debug.WriteLine(string.Format(CultureInfo.CurrentCulture, "WDE: DebugControllerThread.ControllerThreadFunction():"));
+
+                IExpressionEvaluationFrame expressionEvaluationFrame = null;
+
+                try
+                {
+                    RegistryKey debugEngineSubKey = Registry.LocalMachine.OpenSubKey(RegistryKeys.DebuggerSubKey);
+                    if (debugEngineSubKey != null)
+                    {
+                        string evaluationFrameTypeName = debugEngineSubKey.GetValue(ExpressionEvaluationFrameTypeName, String.Empty) as string;
+                        if (!String.IsNullOrEmpty(evaluationFrameTypeName) && Type.GetType(evaluationFrameTypeName) != null)
+                            expressionEvaluationFrame = Activator.CreateInstance(Type.GetType(evaluationFrameTypeName)) as IExpressionEvaluationFrame;
+                    }
+                }
+                catch { }
+
+                if (expressionEvaluationFrame == null)
+                {
+                    Type eeFrameType = null;
+
+                    const string eeFrameTypeNameFormat = "Microsoft.Workflow.DebugEngine.ExpressionEvaluationFrame, Microsoft.Workflow.ExpressionEvaluation, Version={0}.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35";
+
+                    // Try versions 12.0.0.0, 11.0.0.0, 10.0.0.0
+                    for (int version = 12; eeFrameType == null && version >= 10; --version)
+                    {
+                        try
+                        {
+                            eeFrameType = Type.GetType(string.Format(CultureInfo.InvariantCulture, eeFrameTypeNameFormat, version));
+                        }
+                        catch (TypeLoadException)
+                        {
+                            // Fall back to next-lower version
+                        }
+                    }
+
+                    if (eeFrameType != null)
+                    {
+                        expressionEvaluationFrame = Activator.CreateInstance(eeFrameType) as IExpressionEvaluationFrame;
+                    }
+                }
+
+                Debug.Assert(expressionEvaluationFrame != null, "Failed to create Expression Evaluation Frame.");
+
+                if (expressionEvaluationFrame != null)
+                    expressionEvaluationFrame.CreateEvaluationFrame((IInstanceTable)instanceTable, (DebugEngineCallback)Delegate.CreateDelegate(typeof(DebugEngineCallback), this, "ExpressionEvaluationFunction"));
+            }
+            catch
+            {
+                // Don't throw exceptions to the Runtime, it would terminate the debugee.
+            }
+        }
+
+        // This thread spins forever. It is used by the Debug Engine to perform expression evaluation as a "carrier
+        // wave". It is created only when the debugger is attached and terminates itself when the debugger isn't
+        // attached anymore.
+        public void ExpressionEvaluationFunction()
+        {
+            this.threadId = NativeMethods.GetCurrentThreadId();
+            this.threadInitializedEvent.Set();
+
+
+            using (new DebuggerThreadMarker())
+            {
+                // If an exception occurs somehow, continue to spin.
+                while (this.runThread)
+                {
+                    try
+                    {
+                        // Expression eval on x64 does not work (bug 18143) so 
+                        // don't let the thread spin.
+                        if (IntPtr.Size == 8)
+                        {
+                            Thread.Sleep(Timeout.Infinite);
+                        }
+                        else
+                            // Spin within the try catch.
+                            while (this.runThread);
+                    }
+                    catch (ThreadAbortException)
+                    {
+                        Debug.WriteLine(string.Format(CultureInfo.CurrentCulture, "WDE: DebugControllerThread.ExpressionEvaluationFunction(): ThreadAbortException"));
+
+                        // Explicitly do not call ResetAbort().
+                        throw;
+                    }
+                    catch
+                    {
+                        Debug.WriteLine(string.Format(CultureInfo.CurrentCulture, "WDE: DebugControllerThread.ExpressionEvaluationFunction(): other exception"));
+                    }
+                }
+            }
+        }
+
+        #endregion
+
+        #region Properties
+
+        public int ThreadId
+        {
+            get
+            {
+                return this.threadId;
+            }
+        }
+
+        public int ManagedThreadId
+        {
+            get
+            {
+                return this.controllerThread.ManagedThreadId;
+            }
+        }
+
+        #endregion
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/DebugEngine/IExpressionEvaluationFrame.cs

@@ -0,0 +1,25 @@
+#region Using directives
+
+using System;
+using System.Threading;
+using System.Reflection;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+using System.Globalization;
+using Microsoft.Win32;
+#endregion
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+    #region Interface IExpressionEvaluationFrame
+
+    public delegate void DebugEngineCallback();
+
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public interface IExpressionEvaluationFrame
+    {
+        void CreateEvaluationFrame(IInstanceTable instanceTable, DebugEngineCallback callback);
+    }
+
+    #endregion
+}

mcs/class/referencesource/System.Workflow.Runtime/DebugEngine/IInstanceTable.cs

@@ -0,0 +1,165 @@
+// Copyright (c) Microsoft Corp., 2004. All rights reserved.
+#region Using directives
+
+using System;
+using System.Workflow.Runtime;
+using System.Collections.Generic;
+using System.Workflow.ComponentModel;
+using System.Workflow.ComponentModel.Design;
+
+#endregion
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+    //
+    // IMPORTANT: Do not edit this file without consulting Break Safe Synchronization.doc!
+    //
+
+    #region interface IInstanceTable
+
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public interface IInstanceTable
+    {
+        Activity GetActivity(string instanceId, string activityName);
+    }
+
+    #endregion
+
+    #region Class InstanceData
+
+    internal sealed class InstanceData : ICloneable
+    {
+        Activity rootActivity;
+
+        public Activity RootActivity
+        {
+            get
+            {
+                return this.rootActivity;
+            }
+            set
+            {
+                this.rootActivity = value;
+            }
+        }
+
+        public InstanceData(Activity rootActivity)
+        {
+            this.rootActivity = rootActivity;
+        }
+
+        object ICloneable.Clone()
+        {
+            InstanceData instanceData = new InstanceData(this.rootActivity);
+            return instanceData;
+        }
+    }
+
+    internal sealed class InstanceMap : Dictionary<Guid, InstanceData>, ICloneable
+    {
+        object ICloneable.Clone()
+        {
+            InstanceMap data = new InstanceMap();
+            foreach (Guid instsanceId in Keys)
+                data.Add(instsanceId, (InstanceData)(((ICloneable)(this[instsanceId])).Clone()));
+
+            return data;
+        }
+    }
+
+    #endregion
+
+    #region Class InstanceTable
+
+    internal sealed class InstanceTable : BreakSafeBase<InstanceMap>, IInstanceTable
+    {
+        public InstanceTable(int controllerManagedThreadId)
+            : base(controllerManagedThreadId)
+        { }
+
+        // Controller invoked.
+        public void AddInstance(Guid instanceId, Activity rootActivity)
+        {
+            try
+            {
+                Lock();
+
+                InstanceMap instanceMap = GetWriterData();
+                instanceMap[instanceId] = new InstanceData(rootActivity);
+                SaveData(instanceMap);
+            }
+            finally
+            {
+                Unlock();
+            }
+        }
+
+        // Controller invoked.
+        public void RemoveInstance(Guid instanceId)
+        {
+            try
+            {
+                Lock();
+
+                InstanceMap instanceMap = GetWriterData();
+                instanceMap.Remove(instanceId);
+                SaveData(instanceMap);
+            }
+            finally
+            {
+                Unlock();
+            }
+        }
+
+        // Controller invoked during Dynamic Update notification subscription changes.
+        public Activity GetRootActivity(Guid instanceId)
+        {
+            try
+            {
+                Lock();
+
+                return GetReaderData()[instanceId].RootActivity;
+            }
+            finally
+            {
+                Unlock();
+            }
+        }
+
+        // Controller invoked during Dynamic Update notification subscription changes.
+        public void UpdateRootActivity(Guid instanceId, Activity rootActivity)
+        {
+            try
+            {
+                Lock();
+
+                InstanceMap instanceMap = GetWriterData();
+                instanceMap[instanceId].RootActivity = rootActivity;
+                SaveData(instanceMap);
+            }
+            finally
+            {
+                Unlock();
+            }
+        }
+
+        // DE invoked for watches through expression evaluation.
+        Activity IInstanceTable.GetActivity(string instanceId, string activityQualifiedName)
+        {
+            try
+            {
+                Lock();
+
+
+                Activity rootActivity = GetReaderData()[new Guid(instanceId)].RootActivity;
+                return DebuggerHelpers.ParseActivity(rootActivity, activityQualifiedName);
+            }
+            finally
+            {
+                Unlock();
+            }
+        }
+    }
+
+    #endregion
+}

mcs/class/referencesource/System.Workflow.Runtime/DebugEngine/IWorkflowDebugger.cs

@@ -0,0 +1,56 @@
+// Copyright (c) Microsoft Corp., 2004. All rights reserved.
+#region Using directives
+
+using System;
+using System.IO;
+using System.Xml;
+using System.Text;
+using System.Threading;
+using System.Reflection;
+using System.Collections;
+using System.Diagnostics;
+using System.Runtime.Remoting;
+using System.Collections.Generic;
+using System.Runtime.Serialization;
+using System.Workflow.Runtime;
+using System.Workflow.Runtime.Hosting;
+using System.Runtime.InteropServices;
+using System.Runtime.Remoting.Channels;
+using System.Workflow.ComponentModel;
+using System.Workflow.ComponentModel.Compiler;
+using System.Workflow.ComponentModel.Design;
+using System.Workflow.ComponentModel.Serialization;
+using System.Runtime.Serialization.Formatters;
+using System.Configuration;
+using System.Security.Permissions;
+using System.Globalization;
+using Microsoft.Win32;
+using System.Security.AccessControl;
+using System.Security.Principal;
+#endregion
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+    #region Interface IWorkflowDebugger
+
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public interface IWorkflowDebugger
+    {
+        void InstanceCreated(Guid programId, Guid instanceId, Guid scheduleTypeId);
+        void InstanceDynamicallyUpdated(Guid programId, Guid instanceId, Guid scheduleTypeId);
+        void InstanceCompleted(Guid programId, Guid instanceId);
+        void BeforeActivityStatusChanged(Guid programId, Guid scheduleTypeId, Guid instanceId, string activityQualifiedName, string hierarchicalActivityId, ActivityExecutionStatus status, int stateReaderId);
+        void ActivityStatusChanged(Guid programId, Guid scheduleTypeId, Guid instanceId, string activityQualifiedName, string hierarchicalActivityId, ActivityExecutionStatus status, int stateReaderId);
+        void SetInitialActivityStatus(Guid programId, Guid scheduleTypeId, Guid instanceId, string activityQualifiedName, string hierarchicalActivityId, ActivityExecutionStatus status, int stateReaderId);
+        void ScheduleTypeLoaded(Guid programId, Guid scheduleTypeId, string assemblyFullName, string fileName, string md5Digest, bool isDynamic, string scheduleNamespace, string scheduleName, string workflowMarkup);
+        void UpdateHandlerMethodsForActivity(Guid programId, Guid scheduleTypeId, string activityQualifiedName, List<ActivityHandlerDescriptor> handlerMethods);
+        void AssemblyLoaded(Guid programId, string assemblyPath, bool fromGlobalAssemblyCache);
+        void HandlerInvoked(Guid programId, Guid instanceId, int threadId, string activityQualifiedName);
+        void BeforeHandlerInvoked(Guid programId, Guid scheduleTypeId, string activityQualifiedName, ActivityHandlerDescriptor handlerMethod);
+    }
+
+    #endregion
+
+
+
+}

mcs/class/referencesource/System.Workflow.Runtime/DebugEngine/IWorkflowDebuggerService.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Workflow.ComponentModel;
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public interface IWorkflowDebuggerService
+    {
+        void NotifyHandlerInvoking(Delegate delegateHandler);
+        void NotifyHandlerInvoked();
+    }
+
+    internal sealed class WorkflowDebuggerService : IWorkflowDebuggerService
+    {
+        private IWorkflowCoreRuntime coreRuntime;
+
+        internal WorkflowDebuggerService(IWorkflowCoreRuntime coreRuntime)
+        {
+            if (coreRuntime == null)
+                throw new ArgumentNullException("coreRuntime");
+
+            this.coreRuntime = coreRuntime;
+        }
+
+        void IWorkflowDebuggerService.NotifyHandlerInvoking(Delegate delegateHandler)
+        {
+            this.coreRuntime.RaiseHandlerInvoking(delegateHandler);
+        }
+
+        void IWorkflowDebuggerService.NotifyHandlerInvoked()
+        {
+            this.coreRuntime.RaiseHandlerInvoked();
+        }
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/DebugEngine/NativeMethods.cs

@@ -0,0 +1,119 @@
+// Copyright (c) Microsoft Corp., 2004. All rights reserved.
+#region Using directives
+
+using System;
+using System.Runtime.InteropServices;
+using System.Workflow.ComponentModel;
+using System.Workflow.ComponentModel.Design;
+
+#endregion
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+    internal static class NativeMethods
+    {
+        public const int STANDARD_RIGHTS_REQUIRED = (0x000F0000);
+        public const int TOKEN_ASSIGN_PRIMARY = (0x0001);
+        public const int TOKEN_DUPLICATE = (0x0002);
+        public const int TOKEN_IMPERSONATE = (0x0004);
+        public const int TOKEN_QUERY = (0x0008);
+        public const int TOKEN_QUERY_SOURCE = (0x0010);
+        public const int TOKEN_ADJUST_PRIVILEGES = (0x0020);
+        public const int TOKEN_ADJUST_GROUPS = (0x0040);
+        public const int TOKEN_ADJUST_DEFAULT = (0x0080);
+        public const int TOKEN_ADJUST_SESSIONID = (0x0100);
+
+        public const int TOKEN_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED |
+                          TOKEN_ASSIGN_PRIMARY |
+                          TOKEN_DUPLICATE |
+                          TOKEN_IMPERSONATE |
+                          TOKEN_QUERY |
+                          TOKEN_QUERY_SOURCE |
+                          TOKEN_ADJUST_PRIVILEGES |
+                          TOKEN_ADJUST_GROUPS |
+                          TOKEN_ADJUST_DEFAULT);
+
+        [Flags]
+        public enum SECURITY_INFORMATION : uint
+        {
+            OWNER_SECURITY_INFORMATION = 0x00000001,
+            GROUP_SECURITY_INFORMATION = 0x00000002,
+            DACL_SECURITY_INFORMATION = 0x00000004,
+            SACL_SECURITY_INFORMATION = 0x00000008,
+            UNPROTECTED_SACL_SECURITY_INFORMATION = 0x10000000,
+            UNPROTECTED_DACL_SECURITY_INFORMATION = 0x20000000,
+            PROTECTED_SACL_SECURITY_INFORMATION = 0x40000000,
+            PROTECTED_DACL_SECURITY_INFORMATION = 0x80000000
+        }
+
+        [Flags]
+        public enum RpcAuthnLevel
+        {
+            Default = 0,
+            None = 1,
+            Connect = 2,
+            Call = 3,
+            Pkt = 4,
+            PktIntegrity = 5,
+            PktPrivacy = 6
+        }
+
+        public enum EoAuthnCap
+        {
+            None = 0x00,
+            MutualAuth = 0x01,
+            StaticCloaking = 0x20,
+            DynamicCloaking = 0x40,
+            AnyAuthority = 0x80,
+            MakeFullSIC = 0x100,
+            Default = 0x800,
+            SecureRefs = 0x02,
+            AccessControl = 0x04,
+            AppID = 0x08,
+            Dynamic = 0x10,
+            RequireFullSIC = 0x200,
+            AutoImpersonate = 0x400,
+            NoCustomMarshal = 0x2000,
+            DisableAAA = 0x1000
+        }
+
+        public enum RpcImpLevel
+        {
+            Default = 0,
+            Anonymous = 1,
+            Identify = 2,
+            Impersonate = 3,
+            Delegate = 4
+        }
+
+        [DllImport("kernel32.dll", SetLastError = false)]
+        public static extern int GetCurrentThreadId();
+
+        [DllImport("kernel32.dll", SetLastError = false)]
+        public static extern IntPtr GetCurrentProcess();
+
+        [DllImport("advapi32.dll", SetLastError = true)]
+        public static extern bool RevertToSelf();
+
+        [DllImport("advapi32.dll", SetLastError = true)]
+        public static extern bool OpenProcessToken(IntPtr ProcessHandle, UInt32 DesiredAccess, out IntPtr TokenHandle);
+
+        [DllImport("advapi32.dll", SetLastError = true)]
+        public static extern bool GetKernelObjectSecurity(IntPtr Handle, SECURITY_INFORMATION RequestedInformation, IntPtr pSecurityDescriptor, UInt32 nLength, out UInt32 lpnLengthNeeded);
+
+        [DllImport("advapi32.dll", SetLastError = true)]
+        public static extern bool SetKernelObjectSecurity(IntPtr Handle, SECURITY_INFORMATION SecurityInformation, IntPtr SecurityDescriptor);
+
+        [DllImport("kernel32.dll", SetLastError = true)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static extern bool CloseHandle(IntPtr hObject);
+
+    }
+
+    internal static class Guids
+    {
+        internal const string CLSID_WDEProgramPublisher = "B6C0E598-314D-4b63-8C5C-4014F2A1B737";
+        public const string IID_IWDEProgramNode = "e5e93adb-a6fe-435e-8640-31ae310d812f";
+        public const string IID_IWDEProgramPublisher = "2BE74789-F70B-42a3-80CA-E91743385844";
+    }
+}

mcs/class/referencesource/System.Workflow.Runtime/DebugEngine/ProgramNode.cs

@@ -0,0 +1,33 @@
+// Copyright (c) Microsoft Corp., 2004. All rights reserved.
+#region Using directives
+
+using System;
+using System.Threading;
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+#endregion
+
+namespace System.Workflow.Runtime.DebugEngine
+{
+    internal sealed class ProgramNode : IWDEProgramNode
+    {
+        private DebugController controller;
+
+        public ProgramNode(DebugController controller)
+        {
+            this.controller = controller;
+        }
+
+        void IWDEProgramNode.Attach(ref Guid programId, int attachTimeout, int detachPingInterval, out string hostName, out string uri, out int controllerThreadId, out bool isSynchronousAttach)
+        {
+            this.controller.Attach(programId, attachTimeout, detachPingInterval, out hostName, out uri, out controllerThreadId, out isSynchronousAttach);
+        }
+    }
+
+    [ComImport(), Guid(Guids.IID_IWDEProgramNode), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    internal interface IWDEProgramNode
+    {
+        void Attach(ref Guid programId, int attachTimeout, int detachPingInterval, [Out, MarshalAs(UnmanagedType.BStr)] out string hostName, [Out, MarshalAs(UnmanagedType.BStr)] out string uri, [Out] out int controllerThreadId, [Out, MarshalAs(UnmanagedType.Bool)] out bool isSynchronousAttach);
+    }
+}