Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web.Services/System/Web/Services/Interop/CallId.cs

@@ -0,0 +1,26 @@
+namespace System.Web.Services.Interop {
+    using System;
+    using System.Threading;
+    using System.Runtime.InteropServices;
+    
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+    internal struct CallId {        
+        public string szMachine; 
+        public int dwPid;        
+        public IntPtr userThread;        
+        public long addStackPointer;        
+        public string szEntryPoint;
+        public string szDestinationMachine;
+
+        public CallId(string machine, int pid, IntPtr userThread, long stackPtr, string entryPoint, string destMachine) {
+            this.szMachine = machine;
+            this.dwPid = pid;
+            this.userThread = userThread;
+            this.addStackPointer = stackPtr;
+            this.szEntryPoint = entryPoint;
+            this.szDestinationMachine = destMachine;
+        }
+
+    }
+}    
+