Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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
+}