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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.
using System;
using System.Runtime.InteropServices;
namespace System.IO
{
// Maps to FILE_FLAG_DELETE_ON_CLOSE and similar values from winbase.h.
// We didn't expose a number of these values because we didn't believe
// a number of them made sense in managed code, at least not yet.
[Flags]
public enum FileOptions
{
// NOTE: any change to FileOptions enum needs to be
// matched in the FileStream ctor for error validation
None = 0,
WriteThrough = unchecked((int)0x80000000),
Asynchronous = unchecked((int)0x40000000), // FILE_FLAG_OVERLAPPED
// NoBuffering = 0x20000000,
RandomAccess = 0x10000000,
DeleteOnClose = 0x04000000,
SequentialScan = 0x08000000,
// AllowPosix = 0x01000000, // FILE_FLAG_POSIX_SEMANTICS
// BackupOrRestore,
// DisallowReparsePoint = 0x00200000, // FILE_FLAG_OPEN_REPARSE_POINT
// NoRemoteRecall = 0x00100000, // FILE_FLAG_OPEN_NO_RECALL
// FirstPipeInstance = 0x00080000, // FILE_FLAG_FIRST_PIPE_INSTANCE
Encrypted = 0x00004000, // FILE_ATTRIBUTE_ENCRYPTED
}
}
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