diff options
Diffstat (limited to 'src/mscorlib/shared/Microsoft/Win32/SafeHandles/CriticalHandleMinusOneIsInvalid.cs')
-rw-r--r-- | src/mscorlib/shared/Microsoft/Win32/SafeHandles/CriticalHandleMinusOneIsInvalid.cs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/mscorlib/shared/Microsoft/Win32/SafeHandles/CriticalHandleMinusOneIsInvalid.cs b/src/mscorlib/shared/Microsoft/Win32/SafeHandles/CriticalHandleMinusOneIsInvalid.cs new file mode 100644 index 0000000000..a76c51d966 --- /dev/null +++ b/src/mscorlib/shared/Microsoft/Win32/SafeHandles/CriticalHandleMinusOneIsInvalid.cs @@ -0,0 +1,20 @@ +// Licensed to the .NET Foundation under one or more agreements. +// The .NET Foundation licenses this file to you under the MIT license. +// See the LICENSE file in the project root for more information. + +using System; +using System.Runtime.InteropServices; + +namespace Microsoft.Win32.SafeHandles +{ + // Class of critical handle which uses only -1 as an invalid handle. + public abstract class CriticalHandleMinusOneIsInvalid : CriticalHandle + { + protected CriticalHandleMinusOneIsInvalid() + : base(new IntPtr(-1)) + { + } + + public override bool IsInvalid => handle == new IntPtr(-1); + } +} |