protected virtual async ValueTask InitAsync()
{
if (FanOut is not null)
{
return;
}
await Task.Yield();
ChunkReader ??= FileBucket.OpenRead(_fileName);
var(idType, chunkCount, chunkTableOffset) = await ReadHeaderAsync().ConfigureAwait(false);
if (chunkCount == 0)
{
ChunkReader.Dispose();
ChunkReader = null;
return;
}
IdType = idType;
await ReadChunks(chunkTableOffset, chunkCount).ConfigureAwait(false);
}