class SidekiqUniqueJobs::Locksmith

def lock_sync(conn)

Other tags:

Yieldparam

Returns:

(Object) - whatever the block returns when lock was acquired
(nil) - when lock was not possible

Parameters:

conn (Redis) -- a redis connection

def lock_sync(conn)
  return yield if locked?(conn)
  enqueue(conn) do
    primed_sync(conn) do
      locked_token = call_script(:lock, key.to_a, argv, conn)
      return yield if locked_token
    end
  end
end