Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/mscorlib/system/operationcanceledexception.cs

@@ -0,0 +1,72 @@
+// ==++==
+// 
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// 
+// ==--==
+/*============================================================
+**
+** Class:  OperationCanceledException
+**
+**
+** Purpose: Exception for cancelled IO requests.
+**
+**
+===========================================================*/
+
+using System;
+using System.Runtime.Serialization;
+using System.Threading;
+
+namespace System {
+
+    [Serializable]
+    [System.Runtime.InteropServices.ComVisible(true)]
+    public class OperationCanceledException : SystemException
+    {
+        [NonSerialized] 
+        private CancellationToken _cancellationToken;
+        
+        public CancellationToken CancellationToken
+        {
+            get { return _cancellationToken;}
+            private set { _cancellationToken = value;}
+        }
+
+        public OperationCanceledException() 
+            : base(Environment.GetResourceString("OperationCanceled")) {
+            SetErrorCode(__HResults.COR_E_OPERATIONCANCELED);
+        }
+        
+        public OperationCanceledException(String message) 
+            : base(message) {
+            SetErrorCode(__HResults.COR_E_OPERATIONCANCELED);
+        }
+    
+        public OperationCanceledException(String message, Exception innerException) 
+            : base(message, innerException) {
+            SetErrorCode(__HResults.COR_E_OPERATIONCANCELED);
+        }
+
+
+        public OperationCanceledException(CancellationToken token)
+            :this()
+        {
+            CancellationToken = token;
+        }
+
+        public OperationCanceledException(String message, CancellationToken token) 
+            : this(message)
+        {
+            CancellationToken = token;
+        }
+
+        public OperationCanceledException(String message, Exception innerException, CancellationToken token)
+            : this(message, innerException)
+        {
+            CancellationToken = token;
+        }
+
+        protected OperationCanceledException(SerializationInfo info, StreamingContext context) : base (info, context) {
+        }
+    }
+}