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DirectoryFileSystem: use an opened file handle (if exists) when setting file dates to avoid ERROR_SHARING_VIOLATION

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Tal Aloni 2017-01-03 23:18:11 +02:00
parent 2b981c769a
commit 89b3ef2975
4 changed files with 224 additions and 12 deletions
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58
SMBServer/DirectoryFileSystem/Win32Native.cs Normal file
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/* Copyright (C) 2014-2017 Tal Aloni <tal.aloni.il@gmail.com>. All rights reserved.
*
* You can redistribute this program and/or modify it under the terms of
* the GNU Lesser Public License as published by the Free Software Foundation,
* either version 3 of the License, or (at your option) any later version.
*/
using System;
using System.IO;
using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;
namespace SMBServer
{
public class Win32Native
{
[DllImport("kernel32.dll", SetLastError = true)]
private static extern bool SetFileTime(SafeFileHandle hFile, ref long lpCreationTime, IntPtr lpLastAccessTime, IntPtr lpLastWriteTime);
[DllImport("kernel32.dll", SetLastError = true)]
private static extern bool SetFileTime(SafeFileHandle hFile, IntPtr lpCreationTime, ref long lpLastAccessTime, IntPtr lpLastWriteTime);
[DllImport("kernel32.dll", SetLastError = true)]
private static extern bool SetFileTime(SafeFileHandle hFile, IntPtr lpCreationTime, IntPtr lpLastAccessTime, ref long lpLastWriteTime);
internal static void SetCreationTime(SafeFileHandle hFile, DateTime creationTime)
{
long fileTime = creationTime.ToFileTime();
bool success = SetFileTime(hFile, ref fileTime, IntPtr.Zero, IntPtr.Zero);
if (!success)
{
uint error = (uint)Marshal.GetLastWin32Error();
throw new IOException("Win32 error: " + error);
}
}
internal static void SetLastAccessTime(SafeFileHandle hFile, DateTime lastAccessTime)
{
long fileTime = lastAccessTime.ToFileTime();
bool success = SetFileTime(hFile, IntPtr.Zero, ref fileTime, IntPtr.Zero);
if (!success)
{
uint error = (uint)Marshal.GetLastWin32Error();
throw new IOException("Win32 error: " + error);
}
}
internal static void SetLastWriteTime(SafeFileHandle hFile, DateTime lastWriteTime)
{
long fileTime = lastWriteTime.ToFileTime();
bool success = SetFileTime(hFile, IntPtr.Zero, IntPtr.Zero, ref fileTime);
if (!success)
{
uint error = (uint)Marshal.GetLastWin32Error();
throw new IOException("Win32 error: " + error);
}
}
}
}