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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.
/*============================================================
**
** Enum: FileShare
**
**
**
**
** Purpose: Enum describing how to share files with other
** processes - ie, whether two processes can simultaneously
** read from the same file.
**
**
===========================================================*/
using System;
namespace System.IO {
// Contains constants for controlling file sharing options while
// opening files. You can specify what access other processes trying
// to open the same file concurrently can have.
//
// Note these values currently match the values for FILE_SHARE_READ,
// FILE_SHARE_WRITE, and FILE_SHARE_DELETE in winnt.h
//
[Serializable]
[Flags]
[System.Runtime.InteropServices.ComVisible(true)]
public enum FileShare
{
// No sharing. Any request to open the file (by this process or another
// process) will fail until the file is closed.
None = 0,
// Allows subsequent opening of the file for reading. If this flag is not
// specified, any request to open the file for reading (by this process or
// another process) will fail until the file is closed.
Read = 1,
// Allows subsequent opening of the file for writing. If this flag is not
// specified, any request to open the file for writing (by this process or
// another process) will fail until the file is closed.
Write = 2,
// Allows subsequent opening of the file for writing or reading. If this flag
// is not specified, any request to open the file for writing or reading (by
// this process or another process) will fail until the file is closed.
ReadWrite = 3,
// Open the file, but allow someone else to delete the file.
Delete = 4,
// Whether the file handle should be inheritable by child processes.
// Note this is not directly supported like this by Win32.
Inheritable = 0x10,
}
}
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