mirror of https://gitee.com/godoos/godoos.git
11 changed files with 249 additions and 137 deletions
@ -0,0 +1,90 @@ |
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package sys |
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import ( |
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"encoding/json" |
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"fmt" |
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"net/http" |
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"sync" |
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"time" |
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) |
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// 定义消息结构体
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type Message struct { |
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Type string `json:"type"` |
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Data interface{} `json:"data"` |
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} |
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// 定义一个结构体来保存客户端连接
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type client struct { |
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conn http.ResponseWriter |
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} |
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var clients = make(map[*client]bool) |
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var mutex sync.Mutex |
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// 处理客户端连接
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func HandleSystemEvents(w http.ResponseWriter, r *http.Request) { |
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// 设置响应头
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w.Header().Set("Content-Type", "text/event-stream") |
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w.Header().Set("Cache-Control", "no-cache") |
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w.Header().Set("Connection", "keep-alive") |
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// 创建客户端连接对象
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c := &client{conn: w} |
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// 添加客户端到列表
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mutex.Lock() |
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clients[c] = true |
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mutex.Unlock() |
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// 发送初始消息
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updateInfo, err := GetUpdateInfo() |
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if err == nil { |
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SendToClient(c, Message{ |
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Type: "update", |
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Data: updateInfo, |
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}) |
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} |
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// 监听客户端关闭
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defer func() { |
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mutex.Lock() |
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delete(clients, c) |
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mutex.Unlock() |
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}() |
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// 读取客户端请求直到关闭
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for { |
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select { |
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case <-r.Context().Done(): |
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return |
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} |
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} |
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} |
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// 向客户端发送消息
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func SendToClient(c *client, msg Message) { |
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jsonMsg, err := json.Marshal(msg) |
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if err != nil { |
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fmt.Println("Error marshaling JSON:", err) |
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return |
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} |
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fmt.Fprintf(c.conn, "data: %s\n\n", jsonMsg) |
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c.conn.(http.Flusher).Flush() |
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} |
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// 广播消息给所有客户端
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func Broadcast(msg Message) { |
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mutex.Lock() |
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defer mutex.Unlock() |
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for c := range clients { |
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SendToClient(c, msg) |
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} |
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} |
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// 每隔一段时间广播一条消息
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func SendMessagePeriodically(msg Message) { |
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ticker := time.NewTicker(1 * time.Second) |
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for range ticker.C { |
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Broadcast(msg) |
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} |
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} |
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