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fixes #200 - MB3 Locking Folders for a long time

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This commit is contained in:
Luke Pulverenti
2013-04-28 01:29:27 -04:00
parent 90bb3d46c4
commit b443d591a2
33 changed files with 254 additions and 405 deletions
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175
MediaBrowser.Controller/IO/FileSystem.cs
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@@ -1,8 +1,7 @@
using System;
using System.Collections.Generic;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Specialized;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
namespace MediaBrowser.Controller.IO
@@ -13,153 +12,77 @@ namespace MediaBrowser.Controller.IO
public static class FileSystem
{
/// <summary>
/// Gets information about a path
/// Gets the file system info.
/// </summary>
/// <param name="path">The path.</param>
/// <returns>System.Nullable{WIN32_FIND_DATA}.</returns>
/// <exception cref="System.ArgumentNullException">path</exception>
/// <exception cref="System.IO.IOException">GetFileData failed for + path</exception>
public static WIN32_FIND_DATA? GetFileData(string path)
/// <returns>FileSystemInfo.</returns>
public static FileSystemInfo GetFileSystemInfo(string path)
{
if (string.IsNullOrEmpty(path))
// Take a guess to try and avoid two file system hits, but we'll double-check by calling Exists
if (Path.HasExtension(path))
{
throw new ArgumentNullException("path");
}
var fileInfo = new FileInfo(path);
WIN32_FIND_DATA data;
var handle = NativeMethods.FindFirstFileEx(path, FINDEX_INFO_LEVELS.FindExInfoBasic, out data,
FINDEX_SEARCH_OPS.FindExSearchNameMatch, IntPtr.Zero, FindFirstFileExFlags.NONE);
var getFilename = false;
if (handle == NativeMethods.INVALID_HANDLE_VALUE && !Path.HasExtension(path))
{
if (!path.EndsWith("*", StringComparison.OrdinalIgnoreCase))
if (fileInfo.Exists)
{
NativeMethods.FindClose(handle);
handle = NativeMethods.FindFirstFileEx(Path.Combine(path, "*"), FINDEX_INFO_LEVELS.FindExInfoBasic, out data,
FINDEX_SEARCH_OPS.FindExSearchNameMatch, IntPtr.Zero, FindFirstFileExFlags.NONE);
getFilename = true;
return fileInfo;
}
}
if (handle == IntPtr.Zero)
return new DirectoryInfo(path);
}
else
{
throw new IOException("GetFileData failed for " + path);
var fileInfo = new DirectoryInfo(path);
if (fileInfo.Exists)
{
return fileInfo;
}
return new FileInfo(path);
}
NativeMethods.FindClose(handle);
// According to MSDN documentation, this will default to 1601 for paths that don't exist.
if (data.CreationTimeUtc.Year == 1601)
{
return null;
}
if (getFilename)
{
data.cFileName = Path.GetFileName(path);
}
data.Path = path;
return data;
}
/// <summary>
/// Gets all files within a folder
/// Gets the creation time UTC.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="searchPattern">The search pattern.</param>
/// <returns>IEnumerable{WIN32_FIND_DATA}.</returns>
public static IEnumerable<WIN32_FIND_DATA> GetFiles(string path, string searchPattern = "*")
/// <param name="info">The info.</param>
/// <param name="logger">The logger.</param>
/// <returns>DateTime.</returns>
public static DateTime GetLastWriteTimeUtc(FileSystemInfo info, ILogger logger)
{
return GetFileSystemEntries(path, searchPattern, includeDirectories: false);
// This could throw an error on some file systems that have dates out of range
try
{
return info.LastAccessTimeUtc;
}
catch (Exception ex)
{
logger.ErrorException("Error determining LastAccessTimeUtc for {0}", ex, info.FullName);
return DateTime.MinValue;
}
}
/// <summary>
/// Gets all file system entries within a foler
/// Gets the creation time UTC.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="searchPattern">The search pattern.</param>
/// <param name="includeFiles">if set to <c>true</c> [include files].</param>
/// <param name="includeDirectories">if set to <c>true</c> [include directories].</param>
/// <returns>IEnumerable{WIN32_FIND_DATA}.</returns>
/// <exception cref="System.ArgumentNullException">path</exception>
/// <exception cref="System.IO.IOException">GetFileSystemEntries failed</exception>
public static IEnumerable<WIN32_FIND_DATA> GetFileSystemEntries(string path, string searchPattern = "*", bool includeFiles = true, bool includeDirectories = true)
/// <param name="info">The info.</param>
/// <param name="logger">The logger.</param>
/// <returns>DateTime.</returns>
public static DateTime GetCreationTimeUtc(FileSystemInfo info, ILogger logger)
{
if (string.IsNullOrEmpty(path))
// This could throw an error on some file systems that have dates out of range
try
{
throw new ArgumentNullException("path");
return info.CreationTimeUtc;
}
var lpFileName = Path.Combine(path, searchPattern);
WIN32_FIND_DATA lpFindFileData;
var handle = NativeMethods.FindFirstFileEx(lpFileName, FINDEX_INFO_LEVELS.FindExInfoBasic, out lpFindFileData,
FINDEX_SEARCH_OPS.FindExSearchNameMatch, IntPtr.Zero, FindFirstFileExFlags.FIND_FIRST_EX_LARGE_FETCH);
if (handle == IntPtr.Zero)
catch (Exception ex)
{
var hr = Marshal.GetLastWin32Error();
if (hr != 2 && hr != 0x12)
{
throw new IOException("GetFileSystemEntries failed");
}
yield break;
logger.ErrorException("Error determining CreationTimeUtc for {0}", ex, info.FullName);
return DateTime.MinValue;
}
if (IncludeInFindFileOutput(lpFindFileData.cFileName, lpFindFileData.dwFileAttributes, includeFiles, includeDirectories))
{
lpFindFileData.Path = Path.Combine(path, lpFindFileData.cFileName);
yield return lpFindFileData;
}
while (NativeMethods.FindNextFile(handle, out lpFindFileData) != IntPtr.Zero)
{
if (IncludeInFindFileOutput(lpFindFileData.cFileName, lpFindFileData.dwFileAttributes, includeFiles, includeDirectories))
{
lpFindFileData.Path = Path.Combine(path, lpFindFileData.cFileName);
yield return lpFindFileData;
}
}
NativeMethods.FindClose(handle);
}
/// <summary>
/// Includes the in find file output.
/// </summary>
/// <param name="cFileName">Name of the c file.</param>
/// <param name="attributes">The attributes.</param>
/// <param name="includeFiles">if set to <c>true</c> [include files].</param>
/// <param name="includeDirectories">if set to <c>true</c> [include directories].</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
public static bool IncludeInFindFileOutput(string cFileName, FileAttributes attributes, bool includeFiles, bool includeDirectories)
{
if (cFileName.Equals(".", StringComparison.OrdinalIgnoreCase))
{
return false;
}
if (cFileName.Equals("..", StringComparison.OrdinalIgnoreCase))
{
return false;
}
if (!includeFiles && !attributes.HasFlag(FileAttributes.Directory))
{
return false;
}
if (!includeDirectories && attributes.HasFlag(FileAttributes.Directory))
{
return false;
}
return true;
}
/// <summary>