Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Dispatcher/ProxyRpc.cs

@@ -0,0 +1,66 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//-----------------------------------------------------------------------------
+
+namespace System.ServiceModel.Dispatcher
+{
+    using System;
+    using System.Runtime;
+    using System.ServiceModel.Channels;
+    using System.ServiceModel.Diagnostics;
+    using System.Runtime.Diagnostics;
+
+    struct ProxyRpc
+    {
+        internal readonly string Action;
+        internal ServiceModelActivity Activity;
+        internal Guid ActivityId;
+        internal readonly ServiceChannel Channel;
+        internal object[] Correlation;
+        internal readonly object[] InputParameters;
+        internal readonly ProxyOperationRuntime Operation;
+        internal object[] OutputParameters;
+        internal Message Request;
+        internal Message Reply;
+        internal object ReturnValue;
+        internal MessageVersion MessageVersion;
+        internal readonly TimeoutHelper TimeoutHelper;
+        EventTraceActivity eventTraceActivity;
+
+        internal ProxyRpc(ServiceChannel channel, ProxyOperationRuntime operation, string action, object[] inputs, TimeSpan timeout)
+        {
+            this.Action = action;
+            this.Activity = null;
+            this.eventTraceActivity = null;
+            this.Channel = channel;
+            this.Correlation = EmptyArray.Allocate(operation.Parent.CorrelationCount);
+            this.InputParameters = inputs;
+            this.Operation = operation;
+            this.OutputParameters = null;
+            this.Request = null;
+            this.Reply = null;
+            this.ActivityId = Guid.Empty;
+            this.ReturnValue = null;
+            this.MessageVersion = channel.MessageVersion;
+            this.TimeoutHelper = new TimeoutHelper(timeout);
+        }
+
+        internal EventTraceActivity EventTraceActivity
+        {
+            get
+            {
+                if (this.eventTraceActivity == null)
+                {
+                    this.eventTraceActivity = new EventTraceActivity();
+                }
+                return this.eventTraceActivity;
+            }
+
+            set
+            {
+                this.eventTraceActivity = value;
+            }
+        }
+
+    }
+}