public static Result EnsureApplicationCacheStorage(this FileSystemClient fs, out long requiredSize,
out CacheStorageTargetMedia target, Ncm.ApplicationId applicationId, ulong saveDataOwnerId, short index,
long dataSize, long journalSize, bool allowExisting)
{
return(EnsureApplicationCacheStorageImpl(fs, out requiredSize, out target, applicationId, saveDataOwnerId,
index, dataSize, journalSize, allowExisting));
}
public static Result EnsureApplicationCacheStorage(this FileSystemClient fs, out long requiredSize,
out CacheStorageTargetMedia target, Ncm.ApplicationId applicationId, ref ApplicationControlProperty nacp)
{
if (nacp.CacheStorageSize <= 0)
{
requiredSize = default;
target = default;
return(Result.Success);
}
return(EnsureApplicationCacheStorageImpl(fs, out requiredSize, out target, applicationId,
nacp.SaveDataOwnerId.Value, 0, nacp.CacheStorageSize, nacp.CacheStorageJournalSize, true));
}
private static Result GetCacheStorageTargetMediaImpl(this FileSystemClient fs,
out CacheStorageTargetMedia target, Ncm.ApplicationId applicationId)
{
target = CacheStorageTargetMedia.None;
var filter = new SaveDataFilter();
filter.SetProgramId(applicationId);
filter.SetSaveDataType(SaveDataType.Cache);
if (fs.IsSdCardAccessible())
{
Result rc = fs.FindSaveDataWithFilter(out _, SaveDataSpaceId.SdCache, ref filter);
if (rc.IsFailure() && !ResultFs.TargetNotFound.Includes(rc))
{
return(rc);
}
if (rc.IsSuccess())
{
target = CacheStorageTargetMedia.SdCard;
}
}
// Not on the SD card. Check it it's in NAND
if (target == CacheStorageTargetMedia.None)
{
Result rc = fs.FindSaveDataWithFilter(out _, SaveDataSpaceId.User, ref filter);
if (rc.IsFailure() && !ResultFs.TargetNotFound.Includes(rc))
{
return(rc);
}
if (rc.IsSuccess())
{
target = CacheStorageTargetMedia.Nand;
}
}
return(Result.Success);
}
public static Result CreateApplicationCacheStorage(this FileSystemClient fs, out long requiredSize,
out CacheStorageTargetMedia target, Ncm.ApplicationId applicationId, ref ApplicationControlProperty nacp,
ushort index, long dataSize, long journalSize)
{
UnsafeHelpers.SkipParamInit(out requiredSize, out target);
if (index > nacp.CacheStorageMaxIndex)
{
return(ResultFs.CacheStorageIndexTooLarge.Log());
}
if (dataSize + journalSize > nacp.CacheStorageMaxSizeAndMaxJournalSize)
{
return(ResultFs.CacheStorageSizeTooLarge.Log());
}
Result rc = fs.EnsureApplicationCacheStorage(out requiredSize, out target, applicationId,
nacp.SaveDataOwnerId.Value, index, dataSize, journalSize, false);
fs.Impl.AbortIfNeeded(rc);
return(rc);
}
public static Result GetCacheStorageTargetMedia(this FileSystemClient fs, out CacheStorageTargetMedia target,
Ncm.ApplicationId applicationId)
{
return(GetCacheStorageTargetMediaImpl(fs, out target, applicationId));
}
private static Result EnsureApplicationCacheStorageImpl(this FileSystemClient fs, out long requiredSize,
out CacheStorageTargetMedia target, Ncm.ApplicationId applicationId, ulong saveDataOwnerId, short index,
long dataSize, long journalSize, bool allowExisting)
{
requiredSize = default;
target = CacheStorageTargetMedia.SdCard;
Result rc = fs.GetCacheStorageTargetMediaImpl(out CacheStorageTargetMedia targetMedia, applicationId);
if (rc.IsFailure())
{
return(rc);
}
long requiredSizeLocal = 0;
if (targetMedia == CacheStorageTargetMedia.Nand)
{
rc = TryCreateCacheStorage(fs, out requiredSizeLocal, SaveDataSpaceId.User, applicationId,
saveDataOwnerId, index, dataSize, journalSize, allowExisting);
if (rc.IsFailure())
{
return(rc);
}
}
else if (targetMedia == CacheStorageTargetMedia.SdCard)
{
rc = TryCreateCacheStorage(fs, out requiredSizeLocal, SaveDataSpaceId.SdCache, applicationId,
saveDataOwnerId, index, dataSize, journalSize, allowExisting);
if (rc.IsFailure())
{
return(rc);
}
}
// Savedata doesn't exist. Try to create a new one.
else
{
// Try to create the savedata on the SD card first
if (fs.IsSdCardAccessible())
{
target = CacheStorageTargetMedia.SdCard;
Result CreateFuncSdCard() => fs.CreateCacheStorage(applicationId, SaveDataSpaceId.SdCache,
saveDataOwnerId, index, dataSize, journalSize, SaveDataFlags.None);
rc = CreateSaveData(fs, CreateFuncSdCard, ref requiredSizeLocal, 0x4000, dataSize, journalSize);
if (rc.IsFailure())
{
return(rc);
}
if (requiredSizeLocal == 0)
{
requiredSize = 0;
return(Result.Success);
}
}
// If the save can't be created on the SD card, try creating it on the User BIS partition
requiredSizeLocal = 0;
target = CacheStorageTargetMedia.Nand;
Result CreateFuncNand() => fs.CreateCacheStorage(applicationId, SaveDataSpaceId.User, saveDataOwnerId,
index, dataSize, journalSize, SaveDataFlags.None);
rc = CreateSaveData(fs, CreateFuncNand, ref requiredSizeLocal, 0x4000, dataSize, journalSize);
if (rc.IsFailure())
{
return(rc);
}
if (requiredSizeLocal != 0)
{
target = CacheStorageTargetMedia.None;
requiredSize = requiredSizeLocal;
return(ResultFs.InsufficientFreeSpace.Log());
}
}
requiredSize = 0;
return(Result.Success);
}