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// 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.
/*============================================================
**
**
**
** 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;
using Microsoft.Win32;
using Microsoft.Win32.SafeHandles;
namespace Microsoft.Win32.SafeHandles
{
[System.Security.SecurityCritical] // auto-generated
internal sealed class SafeViewOfFileHandle : SafeHandleZeroOrMinusOneIsInvalid
{
[System.Security.SecurityCritical] // auto-generated_required
internal SafeViewOfFileHandle() : base(true) {}
// 0 is an Invalid Handle
[System.Security.SecurityCritical] // auto-generated_required
internal SafeViewOfFileHandle(IntPtr handle, bool ownsHandle) : base (ownsHandle) {
SetHandle(handle);
}
[System.Security.SecurityCritical]
override protected bool ReleaseHandle()
{
if (Win32Native.UnmapViewOfFile(handle))
{
handle = IntPtr.Zero;
return true;
}
return false;
}
}
}
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