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67 lines
3.6 KiB
67 lines
3.6 KiB
/* Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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using System.Text;
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namespace Alphaleonis.Win32.Filesystem
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{
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internal static partial class NativeMethods
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{
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public static readonly bool IsAtLeastWindows7 = OperatingSystem.IsAtLeast(OperatingSystem.EnumOsName.Windows7);
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public static readonly bool IsAtLeastWindowsVista = OperatingSystem.IsAtLeast(OperatingSystem.EnumOsName.WindowsVista);
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/// <summary>The FindFirstFileEx function does not query the short file name, improving overall enumeration speed.
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/// <para> </para>
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/// <remarks>
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/// <para>The data is returned in a <see cref="WIN32_FIND_DATA"/> structure,</para>
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/// <para>and cAlternateFileName member is always a NULL string.</para>
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/// <para>This value is not supported until Windows Server 2008 R2 and Windows 7.</para>
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/// </remarks>
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/// </summary>
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public static readonly FINDEX_INFO_LEVELS FindexInfoLevels = IsAtLeastWindows7 ? FINDEX_INFO_LEVELS.Basic : FINDEX_INFO_LEVELS.Standard;
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/// <summary>Uses a larger buffer for directory queries, which can increase performance of the find operation.</summary>
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/// <remarks>This value is not supported until Windows Server 2008 R2 and Windows 7.</remarks>
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public static readonly FindExAdditionalFlags LargeCache = IsAtLeastWindows7 ? FindExAdditionalFlags.LargeFetch : FindExAdditionalFlags.None;
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/// <summary>DefaultFileBufferSize = 4096; Default type buffer size used for reading and writing files.</summary>
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public const int DefaultFileBufferSize = 4096;
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/// <summary>DefaultFileEncoding = Encoding.UTF8; Default type of Encoding used for reading and writing files.</summary>
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public static readonly Encoding DefaultFileEncoding = Encoding.UTF8;
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/// <summary>MaxDirectoryLength = 255</summary>
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internal const int MaxDirectoryLength = 255;
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/// <summary>MaxPath = 260
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/// The specified path, file name, or both exceed the system-defined maximum length.
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/// For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.
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/// </summary>
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internal const int MaxPath = 260;
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/// <summary>MaxPathUnicode = 32000</summary>
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internal const int MaxPathUnicode = 32000;
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/// <summary>When an exception is raised, bit shifting is needed to prevent: "System.OverflowException: Arithmetic operation resulted in an overflow."</summary>
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internal const int OverflowExceptionBitShift = 65535;
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}
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}
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