local function is_locked_by_another_owner (key, lock_id)
    local existing_lock = get_existing_lock(key)
    -- Currently no locks on given key
    if not existing_lock then
        return false
    end
    -- The caller already owns the lock for the given key
    if existing_lock == lock_id then
        return false
    end
    debugLog("key '%s' is locked but lock ID does not match (expected='%s', actual='%s')", key, lock_id, existing_lock)
    return true
end

local function is_any_locked_by_another_owner (keys, lock_id)
    for _, key in ipairs(keys) do
        if is_locked_by_another_owner(key, lock_id) then
            return true
        end
    end
    return false
end

local function owns_lock (key, lock_id)
    local existing_lock = get_existing_lock(key)
    if existing_lock == lock_id then
        return true
    end
	if existing_lock then
    	debugLog("key '%s' is not locked by lock with ID '%s'. It is currently locked by lock with ID '%s'", key, lock_id, existing_lock)
	end
    return false
end

local function owns_locks (keys, lock_id)
    for _, key in ipairs(keys) do
        if not owns_lock(key, lock_id) then
            return false
        end
    end
    return true
end