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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
/*============================================================
**
** Class: SafeFileHandle
**
**
** A wrapper for file handles
**
**
===========================================================*/
using System;
using System.Security;
#if !MONO
using System.Security.Permissions;
#endif
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
using System.Runtime.Versioning;
using Microsoft.Win32;
namespace Microsoft.Win32.SafeHandles {
[System.Security.SecurityCritical] // auto-generated_required
public sealed class SafeFileHandle: SafeHandleZeroOrMinusOneIsInvalid {
private SafeFileHandle() : base(true)
{
}
public SafeFileHandle(IntPtr preexistingHandle, bool ownsHandle) : base(ownsHandle) {
SetHandle(preexistingHandle);
}
[System.Security.SecurityCritical]
#if !MONO
[ResourceExposure(ResourceScope.Machine)]
[ResourceConsumption(ResourceScope.Machine)]
#endif
override protected bool ReleaseHandle()
{
#if MONO
System.IO.MonoIOError error;
System.IO.MonoIO.Close (handle, out error);
return error == System.IO.MonoIOError.ERROR_SUCCESS;
#else
return Win32Native.CloseHandle(handle);
#endif
}
}
}
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