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Switched to low-level io methods for better performance

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LukePulverenti Luke Pulverenti luke pulverenti
2012-08-20 19:53:32 -04:00
parent 6fbeee841f
commit 758d18a652
19 changed files with 205 additions and 85 deletions
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6
MediaBrowser.Controller/IO/DirectoryWatchers.cs
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@@ -83,7 +83,7 @@ namespace MediaBrowser.Controller.IO
List<string> paths = affectedPaths;
affectedPaths = new List<string>();
await ProcessPathChanges(paths);
await ProcessPathChanges(paths).ConfigureAwait(false);
}
private async Task ProcessPathChanges(IEnumerable<string> paths)
@@ -105,11 +105,11 @@ namespace MediaBrowser.Controller.IO
return folder != null && folder.IsRoot;
}))
{
await Kernel.Instance.ReloadRoot();
await Kernel.Instance.ReloadRoot().ConfigureAwait(false);
}
else
{
await Task.WhenAll(itemsToRefresh.Select(i => Kernel.Instance.ReloadItem(i)));
await Task.WhenAll(itemsToRefresh.Select(i => Kernel.Instance.ReloadItem(i))).ConfigureAwait(false);
}
}

96
MediaBrowser.Controller/IO/FileData.cs Normal file
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@@ -0,0 +1,96 @@
using System;
using System.IO;
using System.Runtime.InteropServices;
namespace MediaBrowser.Controller.IO
{
public static class FileData
{
public const int MAX_PATH = 260;
public const int MAX_ALTERNATE = 14;
public static WIN32_FIND_DATA GetFileData(string fileName)
{
WIN32_FIND_DATA data;
IntPtr handle = FindFirstFile(fileName, out data);
if (handle == IntPtr.Zero)
throw new IOException("FindFirstFile failed");
FindClose(handle);
return data;
}
[DllImport("kernel32")]
private static extern IntPtr FindFirstFile(string fileName, out WIN32_FIND_DATA data);
[DllImport("kernel32")]
private static extern bool FindClose(IntPtr hFindFile);
}
[StructLayout(LayoutKind.Sequential)]
public struct FILETIME
{
public uint dwLowDateTime;
public uint dwHighDateTime;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct WIN32_FIND_DATA
{
public FileAttributes dwFileAttributes;
public FILETIME ftCreationTime;
public FILETIME ftLastAccessTime;
public FILETIME ftLastWriteTime;
public int nFileSizeHigh;
public int nFileSizeLow;
public int dwReserved0;
public int dwReserved1;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = FileData.MAX_PATH)]
public string cFileName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = FileData.MAX_ALTERNATE)]
public string cAlternate;
public bool IsDirectory
{
get
{
return dwFileAttributes.HasFlag(FileAttributes.Directory);
}
}
public DateTime CreationTime
{
get
{
return ParseFileTime(ftCreationTime);
}
}
public DateTime LastAccessTime
{
get
{
return ParseFileTime(ftLastAccessTime);
}
}
public DateTime LastWriteTime
{
get
{
return ParseFileTime(ftLastWriteTime);
}
}
private DateTime ParseFileTime(FILETIME filetime)
{
long highBits = filetime.dwHighDateTime;
highBits = highBits << 32;
return DateTime.FromFileTime(highBits + (long)filetime.dwLowDateTime);
}
}
}