1 files changed, 42 insertions, 0 deletions
diff --git a/src/mscorlib/src/Microsoft/Win32/SafeHandles/SafeFileMappingHandle.cs b/src/mscorlib/src/Microsoft/Win32/SafeHandles/SafeFileMappingHandle.cs
new file mode 100644
index 0000000000..76bdb0379c
--- /dev/null
+++ b/src/mscorlib/src/Microsoft/Win32/SafeHandles/SafeFileMappingHandle.cs
@@ -0,0 +1,42 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+/*============================================================
+**
+**
+**
+** A wrapper for file handles
+**
+** 
+===========================================================*/
+using System;
+using System.Security;
+using System.Security.Permissions;
+using System.Runtime.InteropServices;
+using System.Runtime.CompilerServices;
+using System.Runtime.ConstrainedExecution;
+using System.Runtime.Versioning;
+
+namespace Microsoft.Win32.SafeHandles
+{
+    [System.Security.SecurityCritical]  // auto-generated
+    internal sealed class SafeFileMappingHandle : SafeHandleZeroOrMinusOneIsInvalid
+    {
+        [System.Security.SecurityCritical]  // auto-generated_required
+        internal SafeFileMappingHandle() : base(true) {}
+
+        // 0 is an Invalid Handle
+        [System.Security.SecurityCritical]  // auto-generated_required
+        internal SafeFileMappingHandle(IntPtr handle, bool ownsHandle) : base (ownsHandle)
+        {
+            SetHandle(handle);
+        }
+
+        [System.Security.SecurityCritical]
+        override protected bool ReleaseHandle()
+        {
+            return Win32Native.CloseHandle(handle);
+        }
+    }
+}
+