def self.connect(config)
connection = ::Hiredis::Connection.new
connect_timeout = (config.fetch(:connect_timeout, 0) * 1_000_000).to_i
if config[:scheme] == "unix"
connection.connect_unix(config[:path], connect_timeout)
elsif config[:scheme] == "rediss" || config[:ssl]
raise NotImplementedError, "SSL not supported by hiredis driver"
else
connection.connect(config[:host], config[:port], connect_timeout)
end
instance = new(connection)
instance.timeout = config[:read_timeout]
instance
rescue Errno::ETIMEDOUT
raise TimeoutError
end