棋牌游戏-1

思考并回答以下问题：

framework/net/ws_connection.go

无任何依赖，就是围绕着一个map，把一些数据放进和读取

package net

import "sync"

type Session struct {
    sync.RWMutex
    Cid  string // 一个随机的字符串
    Uid  string // 用户id
    data map[string]any
}

func NewSession(cid string) *Session {
    return &Session{
        Cid:  cid,
        data: make(map[string]any),
    }
}

func (s *Session) Put(key string, v any) {
    s.Lock()
    defer s.Unlock()
    s.data[key] = v
}
func (s *Session) Get(key string) (any, bool) {
    s.RLock()
    defer s.RUnlock()
    v, ok := s.data[key]
    return v, ok
}
func (s *Session) SetData(uid string, data map[string]any) {
    s.Lock()
    defer s.Unlock()
    if s.Uid == uid {
        for k, v := range data {
            s.data[k] = v
        }
    }
}

framework/net/connection.go

package net

type Connection interface {
    Close()
    SendMessage(buf []byte) error
    GetSession() *Session
}

type MsgPack struct {
    Cid  string
    Body []byte
}