void LoadContent()
{
SpanReader reader;
foreach (var collectionFile in _fileCollection.Enumerate())
{
reader = new SpanReader(collectionFile.GetExclusiveReader());
if (!reader.CheckMagic(MagicStartOfFile))
{
continue; // Don't touch files alien files
}
var fileType = (DiskChunkFileType)reader.ReadUInt8();
var fileInfo = fileType switch
{
DiskChunkFileType.HashIndex => new FileHashIndex(ref reader),
DiskChunkFileType.PureValues => new FilePureValues(ref reader),
_ => UnknownFile.Instance
};
if (_fileGeneration < fileInfo.Generation)
{
_fileGeneration = fileInfo.Generation;
}
_fileInfos.TryAdd(collectionFile.Index, fileInfo);
}
var hashFilePair =
_fileInfos.Where(f => f.Value.FileType == DiskChunkFileType.HashIndex).OrderByDescending(
f => f.Value.Generation).FirstOrDefault();
if (hashFilePair.Value == null)
{
return;
}
reader = new SpanReader(_fileCollection.GetFile(hashFilePair.Key).GetExclusiveReader());
FileHashIndex.SkipHeader(ref reader);
if (((FileHashIndex)hashFilePair.Value).KeySize != _keySize)
{
return;
}
var keyBuf = ByteBuffer.NewSync(new byte[_keySize]);
while (true)
{
var cacheValue = new CacheValue();
cacheValue.FileOfs = reader.ReadVUInt32();
if (cacheValue.FileOfs == 0)
{
break;
}
cacheValue.FileId = reader.ReadVUInt32();
cacheValue.AccessRate = reader.ReadVUInt32();
cacheValue.ContentLength = reader.ReadVUInt32();
reader.ReadBlock(keyBuf);
_cache.TryAdd(new ByteStructs.Key20(keyBuf), cacheValue);
}
}
