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Code Issues Releases Wiki Activity

Use hard links instead of file copy when available

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This commit is contained in:
Dean Herbert 2022-10-13 17:46:01 +09:00
parent 731184eb39
commit f27603dd6d
1 changed files with 16 additions and 0 deletions
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16
osu.Game/Database/RealmFileStore.cs
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@ -4,6 +4,8 @@
using System;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using osu.Framework;
using osu.Framework.Extensions;
using osu.Framework.IO.Stores;
using osu.Framework.Logging;
@ -60,6 +62,13 @@ namespace osu.Game.Database
private void copyToStore(RealmFile file, Stream data)
{
if (RuntimeInfo.OS == RuntimeInfo.Platform.Windows && data is FileStream fs)
{
// attempt to do a fast hard link rather than copy.
if (CreateHardLink(Storage.GetFullPath(file.GetStoragePath()), fs.Name, IntPtr.Zero))
return;
}
data.Seek(0, SeekOrigin.Begin);
using (var output = Storage.CreateFileSafely(file.GetStoragePath()))
@ -68,6 +77,13 @@ namespace osu.Game.Database
data.Seek(0, SeekOrigin.Begin);
}
[DllImport("Kernel32.dll", CharSet = CharSet.Unicode)]
private static extern bool CreateHardLink(
string lpFileName,
string lpExistingFileName,
IntPtr lpSecurityAttributes
);
private bool checkFileExistsAndMatchesHash(RealmFile file)
{
string path = file.GetStoragePath();