142 lines
3.9 KiB
Go
142 lines
3.9 KiB
Go
package logic
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import (
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"context"
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"fmt"
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"github.com/zeromicro/go-zero/core/logx"
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)
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var (
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//用户标识的连接(白板用户不存)
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mapUserConnPool = make(map[string]map[string]struct{}) //key是user_id +"_"+guest_id （val是个普通map，存储这个用户的所有连接标识）
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//用户标识的连接增删操作队列
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userConnPoolCtlChan = make(chan userConnPoolCtlChanItem, 500)
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)
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// 用户标识的连接增删操作队列传输的值的结构
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type userConnPoolCtlChanItem struct {
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userId int64 //必须（两个用户id任意一个不为0）
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guestId int64 //必须（两个用户id任意一个不为0）
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uniqueId string //主连接池唯一标识（添加/删除时候必须）
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message []byte //消息（发送消息传的,格式是经过标准输出序列化后的数据）
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option int64 //操作 2发消息 1增加 0删除
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}
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// 添加用户索引池ws连接
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func createUserConnPoolElement(userId, guestId int64, uniqueId string) {
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if userId == 0 && guestId == 0 {
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return
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}
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data := userConnPoolCtlChanItem{
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userId: userId,
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guestId: guestId,
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uniqueId: uniqueId,
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message: nil,
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option: 1,
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}
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select {
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case userConnPoolCtlChan <- data:
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return
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}
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}
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// 从用户索引池删除ws连接
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func deleteUserConnPoolElement(userId, guestId int64, uniqueId string) {
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if userId == 0 && guestId == 0 {
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return
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}
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data := userConnPoolCtlChanItem{
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userId: userId,
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guestId: guestId,
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uniqueId: uniqueId,
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message: nil,
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option: 0,
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}
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userConnPoolCtlChan <- data
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}
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// 消费用户索引创建/删除/发送消息中的任务数据
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func ConsumeUserConnPoolCtlChanData(ctx context.Context) {
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defer func() {
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if err := recover(); err != nil {
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logx.Error("ConsumeUserConnPoolCtlChanData panic:", err)
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}
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}()
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go func() {
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select {
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case <-ctx.Done():
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panic("ConsumeUserConnPoolCtlChanData ctx deadline")
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}
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}()
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var (
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data userConnPoolCtlChanItem
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userKey string
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)
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for {
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select {
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case data = <-userConnPoolCtlChan:
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userKey = getmapUserConnPoolUniqueId(data.userId, data.guestId)
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switch data.option {
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case 2: //发送消息
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//logx.Info("通过用户id索引发送消息")
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mapUserUniqueId, ok := mapUserConnPool[userKey]
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if !ok {
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logx.Info("通过用户id索引发送消息,连接不存在，用户索引key:", userKey)
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continue
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}
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for uniqueId, _ := range mapUserUniqueId {
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//根据uniqueId查询原始池中连接
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mapConnPoolVal, ok := mapConnPool.Load(uniqueId)
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if !ok {
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logx.Info("通过用户id索引发送消息,连接不存在，用户索引key:", userKey, " 原始uniqueId:", uniqueId)
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continue
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}
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originConn, ok := mapConnPoolVal.(wsConnectItem)
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if !ok {
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logx.Error("通过用户id索引发送消息,断言原始连接失败，用户索引key:", userKey, " 原始uniqueId:", uniqueId)
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continue
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}
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originConn.sendToOutChan(data.message)
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}
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case 1: //添加
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//logx.Info("添加用户id索引标识：", data.uniqueId)
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//存在这个用户的map池子
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if mapUserUniqueId, ok := mapUserConnPool[userKey]; ok {
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mapUserUniqueId[data.uniqueId] = struct{}{}
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} else {
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mapUserConnPool[userKey] = make(map[string]struct{})
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mapUserConnPool[userKey][data.uniqueId] = struct{}{}
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}
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case 0: //删除
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//logx.Info("删除用户id索引标识：", data.uniqueId)
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if mapUserUniqueId, ok := mapUserConnPool[userKey]; ok {
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delete(mapUserUniqueId, data.uniqueId)
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}
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}
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}
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}
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}
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// 获取mapUserConnPool唯一id
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func getmapUserConnPoolUniqueId(userId, guestId int64) (uniqueId string) {
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if userId > 0 {
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guestId = 0
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}
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return fmt.Sprintf("%d_%d", userId, guestId)
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}
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// 根据用户索引发现链接并发送(广播)消息到出口队列
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func sendToOutChanByUserIndex(userId, guestId int64, message []byte) {
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data := userConnPoolCtlChanItem{
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userId: userId,
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guestId: guestId,
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uniqueId: "",
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message: message,
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option: 2,
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}
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select {
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case userConnPoolCtlChan <- data:
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return
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}
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}
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