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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;
using Microsoft.Win32.SafeHandles;
internal static partial class Interop
{
internal static partial class Sys
{
// Even though csc will by default use a sequential layout, a CS0649 warning as error
// is produced for un-assigned fields when no StructLayout is specified.
//
// Explicitly saying Sequential disables that warning/error for consumers which only
// use Stat in debug builds.
[StructLayout(LayoutKind.Sequential)]
internal struct FileStatus
{
internal FileStatusFlags Flags;
internal int Mode;
internal uint Uid;
internal uint Gid;
internal long Size;
internal long ATime;
internal long MTime;
internal long CTime;
internal long BirthTime;
}
internal static class FileTypes
{
internal const int S_IFMT = 0xF000;
internal const int S_IFIFO = 0x1000;
internal const int S_IFCHR = 0x2000;
internal const int S_IFDIR = 0x4000;
internal const int S_IFREG = 0x8000;
internal const int S_IFLNK = 0xA000;
internal const int S_IFSOCK = 0xC000;
}
[Flags]
internal enum FileStatusFlags
{
None = 0,
HasBirthTime = 1,
}
[DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_FStat", SetLastError = true)]
internal static extern int FStat(SafeFileHandle fd, out FileStatus output);
[DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_Stat", SetLastError = true)]
internal static extern int Stat(string path, out FileStatus output);
[DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_LStat", SetLastError = true)]
internal static extern int LStat(string path, out FileStatus output);
}
}
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