private PooledMemoryStream ReadDataNoCaching(Stream log, long pos, int size, RavenJToken key)
{
log.Position = pos;
var data = PooledMemoryStream.From(log, size);
if (data.Length != size)
{
throw new InvalidDataException("Could not read complete data, the file is probably corrupt when reading: " +
key.ToString(Formatting.None) + " on table " + Name);
}
var hash = data.ComputeHash();
var binaryReader = new BinaryReader(log);
var hashFromFile = binaryReader.ReadBytes(hash.Length);
if (hashFromFile.Length != hash.Length)
{
throw new InvalidDataException("Could not read complete SHA data, the file is probably corrupt when reading: " +
key.ToString(Formatting.None) + " on table " + Name);
}
if (hashFromFile.Where((t, i) => hash[i] != t).Any())
{
throw new InvalidDataException("Invalid SHA signature, the file is probably corrupt when reading: " +
key.ToString(Formatting.None) + " on table " + Name);
}
return(data);
}