class SidekiqUniqueJobs::Locksmith

def enqueue(conn)

Returns:

(yield) - when successfully enqueued
(nil) - when redis was already prepared for this lock

Parameters:

conn (Redis) -- a redis connection

def enqueue(conn)
  queued_token, elapsed = timed do
    call_script(:queue, key.to_a, argv, conn)
  end
  validity = config.pttl - elapsed - drift(config.pttl)
  return unless queued_token && (validity >= 0 || config.pttl.zero?)
  write_lock_info(conn)
  yield
end