function _M.add_watch()

in lib/shenyu/register/zookeeper/zk_client.lua [128:139]

• 11 lines of code
• 3 McCabe index (conditional complexity)

function _M.add_watch(self, path, listener)
    
    local d, e = self:_get_children(path, 1)
    if not d then
        return d, e
    end
    self.watch = true
    if not self.children_listener[path] then
        self.children_listener[path] = listener
    end
    return d, nil
end