module RedisClient::Cluster::KeySlotConverter

def convert(key) 

def convert(key)
  return nil if key.nil?
  crc = 0
  key.each_byte do |b|
    crc = ((crc << 8) & 0xffff) ^ XMODEM_CRC16_LOOKUP[((crc >> 8) ^ b) & 0xff]
  end
  crc % HASH_SLOTS
end