1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
| package handler
import (
"encoding/json"
"log"
"time"
"github.com/gorilla/websocket"
"github.com/zeromicro/go-zero/core/logx"
"github.com/nrbackback/zero-chatroom/chat/internal/types"
)
type Hub struct {
clients map[int]*Client
broadcast chan Msg
}
type Msg struct {
Msg string
FromID int
ToIDs []int
Time int64
}
type Client struct {
ID int
conn *websocket.Conn
send chan Msg
}
var h *Hub
func InitHub() {
h = &Hub{
broadcast: make(chan Msg),
clients: make(map[int]*Client),
}
}
func RunHub() {
for {
select {
case message := <-h.broadcast:
for _, client := range h.clients {
select {
case client.send <- message:
default:
close(client.send)
delete(h.clients, client.ID)
}
}
}
}
}
func register(c *Client) {
h.clients[c.ID] = c
}
func unregister(c *Client) {
delete(h.clients, c.ID)
close(c.send)
}
var maxMessageSize = int64(512)
var pongWait = 60 * time.Second
func (c *Client) readPump() {
logx.Errorw("test close writer error", logx.Field("error", "fdfsdfds"))
defer func() {
unregister(c)
c.conn.Close()
}()
c.conn.SetReadLimit(maxMessageSize)
c.conn.SetReadDeadline(time.Now().Add(pongWait))
c.conn.SetPongHandler(func(string) error {
c.conn.SetReadDeadline(time.Now().Add(pongWait))
return nil
})
for {
_, message, err := c.conn.ReadMessage()
if err != nil {
if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseAbnormalClosure) {
log.Printf("error: %v", err)
}
break
}
var req types.WsRequestItem
if err := json.Unmarshal(message, &req); err != nil {
logx.Errorw("unmarshal message when read error", logx.Field("message", string(message)), logx.Field("error", err))
continue
}
h.broadcast <- Msg{
Msg: req.Message,
FromID: c.ID,
ToIDs: req.ToID,
Time: time.Now().Unix(),
}
}
}
var pingPeriod = (pongWait * 9) / 10
var writeWait = 10 * time.Second
func (c *Client) writePump() {
ticker := time.NewTicker(pingPeriod)
defer func() {
ticker.Stop()
c.conn.Close()
}()
for {
select {
case message, ok := <-c.send:
c.conn.SetWriteDeadline(time.Now().Add(writeWait))
if !ok {
c.conn.WriteMessage(websocket.CloseMessage, []byte{})
return
}
w, err := c.conn.NextWriter(websocket.TextMessage)
if err != nil {
logx.Errorw("NextWriterd error", logx.Field("error", err))
continue
}
resp := types.WsResponseItem{
Message: message.Msg,
FromID: message.FromID,
Time: message.Time,
}
v, _ := json.Marshal(resp)
w.Write(v)
if err := w.Close(); err != nil {
logx.Errorw("close writer error", logx.Field("error", err))
continue
}
case <-ticker.C:
c.conn.SetWriteDeadline(time.Now().Add(writeWait))
if err := c.conn.WriteMessage(websocket.PingMessage, nil); err != nil {
logx.Errorw("write ping message error", logx.Field("error", err))
continue
}
}
}
}
|
