DSInternals/Src/Microsoft.Isam.Esent.Interop/jet_iopriority.cs
2016-01-24 09:59:40 +01:00

51 lines
1.5 KiB
C#
Vendored

//-----------------------------------------------------------------------
// <copyright file="jet_iopriority.cs" company="Microsoft Corporation">
// Copyright (c) Microsoft Corporation.
// </copyright>
//-----------------------------------------------------------------------
namespace Microsoft.Isam.Esent.Interop.Vista
{
using System;
/// <summary>
/// Values for use with <see cref="VistaParam.IOPriority"/>.
/// </summary>
[Flags]
public enum JET_IOPriority
{
/// <summary>
/// This is the default I/O priority level.
/// </summary>
Normal = 0x0,
/// <summary>
/// Subsequent I/Os issued will be issued at Low priority.
/// </summary>
Low = 0x1,
/// <summary>
/// Subsequent I/Os issued for checkpoint advancement will be issued at Low priority.
/// </summary>
/// <remarks>
/// Available on Windows 8.1 and later.
/// </remarks>
LowForCheckpoint = 0x2,
/// <summary>
/// Subsequent I/Os issued for scavenging buffers will be issued at Low priority.
/// </summary>
/// <remarks>
/// Available on Windows 8.1 and later.
/// </remarks>
LowForScavenge = 0x4,
/// <summary>
/// Subsequent I/Os issued for shrinking the database cache will be issued at Low priority.
/// </summary>
/// <remarks>
/// Available on Windows 8.1 and later.
/// </remarks>
LowForCacheShrink = 0x8,
}
}