511 lines
15 KiB
C#
511 lines
15 KiB
C#
using LibHac;
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using LibHac.Common;
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using LibHac.Fs;
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using LibHac.Fs.Shim;
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using Ryujinx.HLE.HOS.Services.Mii.Types;
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using System.Runtime.CompilerServices;
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namespace Ryujinx.HLE.HOS.Services.Mii
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{
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class MiiDatabaseManager
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{
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private static bool IsTestModeEnabled = false;
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private static uint MountCounter = 0;
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private const ulong DatabaseTestSaveDataId = 0x8000000000000031;
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private const ulong DatabaseSaveDataId = 0x8000000000000030;
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private const ulong NsTitleId = 0x010000000000001F;
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private const ulong SdbTitleId = 0x0100000000000039;
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private static U8String DatabasePath = new U8String("mii:/MiiDatabase.dat");
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private static U8String MountName = new U8String("mii");
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private NintendoFigurineDatabase _database;
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private bool _isDirty;
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private FileSystemClient _filesystemClient;
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protected ulong UpdateCounter { get; private set; }
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public MiiDatabaseManager()
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{
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_database = new NintendoFigurineDatabase();
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_isDirty = false;
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UpdateCounter = 0;
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}
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private void ResetDatabase()
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{
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_database = new NintendoFigurineDatabase();
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_database.Format();
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}
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private void MarkDirty(DatabaseSessionMetadata metadata)
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{
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_isDirty = true;
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UpdateCounter++;
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metadata.UpdateCounter = UpdateCounter;
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}
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private bool GetAtVirtualIndex(int index, out int realIndex, out StoreData storeData)
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{
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realIndex = -1;
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storeData = new StoreData();
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int virtualIndex = 0;
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for (int i = 0; i < _database.Length; i++)
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{
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StoreData tmp = _database.Get(i);
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if (!tmp.IsSpecial())
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{
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if (index == virtualIndex)
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{
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realIndex = i;
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storeData = tmp;
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return true;
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}
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virtualIndex++;
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}
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}
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return false;
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}
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private int ConvertRealIndexToVirtualIndex(int realIndex)
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{
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int virtualIndex = 0;
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for (int i = 0; i < realIndex; i++)
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{
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StoreData tmp = _database.Get(i);
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if (!tmp.IsSpecial())
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{
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virtualIndex++;
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}
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}
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return virtualIndex;
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}
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public void InitializeDatabase(Switch device)
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{
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_filesystemClient = device.FileSystem.FsClient;
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// Ensure we have valid data in the database
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_database.Format();
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MountSave();
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}
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private Result MountSave()
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{
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Result result = Result.Success;
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if (MountCounter == 0)
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{
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ulong targetSaveDataId;
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ulong targetTitleId;
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if (IsTestModeEnabled)
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{
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targetSaveDataId = DatabaseTestSaveDataId;
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targetTitleId = SdbTitleId;
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}
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else
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{
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targetSaveDataId = DatabaseSaveDataId;
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// Nintendo use NS TitleID when creating the production save even on sdb, let's follow that behaviour.
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targetTitleId = NsTitleId;
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}
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U8Span mountName = new U8Span(MountName);
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result = _filesystemClient.MountSystemSaveData(mountName, SaveDataSpaceId.System, targetSaveDataId);
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if (result.IsFailure())
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{
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if (ResultFs.TargetNotFound.Includes(result))
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{
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// TODO: We're currently always specifying the owner ID because FS doesn't have a way of
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// knowing which process called it
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result = _filesystemClient.CreateSystemSaveData(targetSaveDataId, targetTitleId, 0x10000,
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0x10000, SaveDataFlags.KeepAfterResettingSystemSaveDataWithoutUserSaveData);
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if (result.IsFailure()) return result;
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result = _filesystemClient.MountSystemSaveData(mountName, SaveDataSpaceId.System, targetSaveDataId);
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if (result.IsFailure()) return result;
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}
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}
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if (result == Result.Success)
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{
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MountCounter++;
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}
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}
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return result;
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}
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public ResultCode DeleteFile()
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{
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ResultCode result = (ResultCode)_filesystemClient.DeleteFile(DatabasePath).Value;
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_filesystemClient.Commit(MountName);
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return result;
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}
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public ResultCode LoadFromFile(out bool isBroken)
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{
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isBroken = false;
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if (MountCounter == 0)
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{
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return ResultCode.InvalidArgument;
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}
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UpdateCounter++;
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ResetDatabase();
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Result result = _filesystemClient.OpenFile(out FileHandle handle, DatabasePath, OpenMode.Read);
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if (result.IsSuccess())
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{
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result = _filesystemClient.GetFileSize(out long fileSize, handle);
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if (result.IsSuccess())
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{
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if (fileSize == Unsafe.SizeOf<NintendoFigurineDatabase>())
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{
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result = _filesystemClient.ReadFile(handle, 0, _database.AsSpan());
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if (result.IsSuccess())
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{
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if (_database.Verify() != ResultCode.Success)
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{
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ResetDatabase();
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isBroken = true;
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}
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else
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{
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isBroken = _database.FixDatabase();
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}
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}
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}
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else
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{
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isBroken = true;
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}
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}
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_filesystemClient.CloseFile(handle);
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return (ResultCode)result.Value;
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}
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else if (ResultFs.PathNotFound.Includes(result))
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{
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return (ResultCode)ForceSaveDatabase().Value;
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}
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return ResultCode.Success;
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}
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private Result ForceSaveDatabase()
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{
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Result result = _filesystemClient.CreateFile(DatabasePath, Unsafe.SizeOf<NintendoFigurineDatabase>());
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if (result.IsSuccess() || ResultFs.PathAlreadyExists.Includes(result))
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{
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result = _filesystemClient.OpenFile(out FileHandle handle, DatabasePath, OpenMode.Write);
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if (result.IsSuccess())
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{
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result = _filesystemClient.GetFileSize(out long fileSize, handle);
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if (result.IsSuccess())
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{
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// If the size doesn't match, recreate the file
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if (fileSize != Unsafe.SizeOf<NintendoFigurineDatabase>())
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{
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_filesystemClient.CloseFile(handle);
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result = _filesystemClient.DeleteFile(DatabasePath);
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if (result.IsSuccess())
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{
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result = _filesystemClient.CreateFile(DatabasePath, Unsafe.SizeOf<NintendoFigurineDatabase>());
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if (result.IsSuccess())
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{
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result = _filesystemClient.OpenFile(out handle, DatabasePath, OpenMode.Write);
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}
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}
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if (result.IsFailure())
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{
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return result;
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}
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}
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result = _filesystemClient.WriteFile(handle, 0, _database.AsReadOnlySpan(), WriteOption.Flush);
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}
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_filesystemClient.CloseFile(handle);
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}
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}
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if (result.IsSuccess())
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{
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_isDirty = false;
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result = _filesystemClient.Commit(MountName);
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}
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return result;
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}
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public DatabaseSessionMetadata CreateSessionMetadata(SpecialMiiKeyCode miiKeyCode)
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{
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return new DatabaseSessionMetadata(UpdateCounter, miiKeyCode);
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}
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public void SetInterfaceVersion(DatabaseSessionMetadata metadata, uint interfaceVersion)
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{
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metadata.InterfaceVersion = interfaceVersion;
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}
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public bool IsUpdated(DatabaseSessionMetadata metadata)
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{
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bool result = metadata.UpdateCounter != UpdateCounter;
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metadata.UpdateCounter = UpdateCounter;
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return result;
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}
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public int GetCount(DatabaseSessionMetadata metadata)
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{
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if (!metadata.MiiKeyCode.IsEnabledSpecialMii())
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{
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int count = 0;
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for (int i = 0; i < _database.Length; i++)
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{
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StoreData tmp = _database.Get(i);
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if (!tmp.IsSpecial())
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{
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count++;
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}
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}
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return count;
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}
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else
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{
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return _database.Length;
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}
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}
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public void Get(DatabaseSessionMetadata metadata, int index, out StoreData storeData)
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{
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if (!metadata.MiiKeyCode.IsEnabledSpecialMii())
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{
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if (GetAtVirtualIndex(index, out int realIndex, out _))
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{
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index = realIndex;
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}
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else
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{
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index = 0;
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}
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}
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storeData = _database.Get(index);
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}
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public ResultCode FindIndex(DatabaseSessionMetadata metadata, out int index, CreateId createId)
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{
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return FindIndex(out index, createId, metadata.MiiKeyCode.IsEnabledSpecialMii());
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}
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public ResultCode FindIndex(out int index, CreateId createId, bool isSpecial)
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{
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if (_database.GetIndexByCreatorId(out int realIndex, createId))
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{
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if (isSpecial)
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{
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index = realIndex;
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return ResultCode.Success;
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}
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StoreData storeData = _database.Get(realIndex);
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if (!storeData.IsSpecial())
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{
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if (realIndex < 1)
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{
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index = 0;
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}
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else
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{
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index = ConvertRealIndexToVirtualIndex(realIndex);
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}
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return ResultCode.Success;
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}
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}
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index = -1;
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return ResultCode.NotFound;
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}
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public ResultCode Move(DatabaseSessionMetadata metadata, int newIndex, CreateId createId)
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{
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if (!metadata.MiiKeyCode.IsEnabledSpecialMii())
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{
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if (GetAtVirtualIndex(newIndex, out int realIndex, out _))
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{
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newIndex = realIndex;
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}
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else
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{
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newIndex = 0;
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}
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}
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if (_database.GetIndexByCreatorId(out int oldIndex, createId))
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{
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StoreData realStoreData = _database.Get(oldIndex);
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if (!metadata.MiiKeyCode.IsEnabledSpecialMii() && realStoreData.IsSpecial())
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{
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return ResultCode.InvalidOperationOnSpecialMii;
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}
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ResultCode result = _database.Move(newIndex, oldIndex);
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if (result == ResultCode.Success)
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{
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MarkDirty(metadata);
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}
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return result;
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}
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return ResultCode.NotFound;
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}
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public ResultCode AddOrReplace(DatabaseSessionMetadata metadata, StoreData storeData)
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{
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if (!storeData.IsValid())
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{
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return ResultCode.InvalidStoreData;
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}
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if (!metadata.MiiKeyCode.IsEnabledSpecialMii() && !storeData.IsSpecial())
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{
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if (_database.GetIndexByCreatorId(out int index, storeData.CreateId))
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{
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StoreData oldStoreData = _database.Get(index);
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if (oldStoreData.IsSpecial())
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{
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return ResultCode.InvalidOperationOnSpecialMii;
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}
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_database.Replace(index, storeData);
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}
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else
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{
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if (_database.IsFull())
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{
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return ResultCode.DatabaseFull;
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}
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_database.Add(storeData);
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}
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MarkDirty(metadata);
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return ResultCode.Success;
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}
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return ResultCode.InvalidOperationOnSpecialMii;
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}
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public ResultCode Delete(DatabaseSessionMetadata metadata, CreateId createId)
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{
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if (!_database.GetIndexByCreatorId(out int index, createId))
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{
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return ResultCode.NotFound;
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}
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if (!metadata.MiiKeyCode.IsEnabledSpecialMii())
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{
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StoreData storeData = _database.Get(index);
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if (storeData.IsSpecial())
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{
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return ResultCode.InvalidOperationOnSpecialMii;
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}
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}
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_database.Delete(index);
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MarkDirty(metadata);
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return ResultCode.Success;
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}
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public ResultCode DestroyFile(DatabaseSessionMetadata metadata)
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{
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_database.CorruptDatabase();
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MarkDirty(metadata);
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ResultCode result = SaveDatabase();
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ResetDatabase();
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return result;
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}
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public ResultCode SaveDatabase()
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{
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if (_isDirty)
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{
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return (ResultCode)ForceSaveDatabase().Value;
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}
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else
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{
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return ResultCode.NotUpdated;
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}
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}
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public void FormatDatabase(DatabaseSessionMetadata metadata)
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{
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_database.Format();
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MarkDirty(metadata);
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}
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public bool IsFullDatabase()
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{
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return _database.IsFull();
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}
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}
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}
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