forked from fastcity/seelog
/
ws.go
94 lines (85 loc) · 1.7 KB
/
ws.go
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package seelog
import (
"encoding/json"
"errors"
"golang.org/x/net/websocket"
"io"
)
// websocket客户端
type client struct {
id string
socket *websocket.Conn
send chan msg
see string
}
// 客户端管理
type clientManager struct {
clients map[*client]bool
broadcast chan msg
register chan *client
unregister chan *client
}
var manager = clientManager{
broadcast: make(chan msg),
register: make(chan *client),
unregister: make(chan *client),
clients: make(map[*client]bool),
}
func (manager *clientManager) start() {
defer func() {
if err := recover(); err != nil {
printError(errors.New("manager start() panic"))
}
}()
for {
select {
case conn := <-manager.register:
manager.clients[conn] = true
case conn := <-manager.unregister:
if _, ok := manager.clients[conn]; ok {
close(conn.send)
conn.socket.Close()
delete(manager.clients, conn)
}
case msg := <-manager.broadcast:
for conn := range manager.clients {
if conn.see == msg.LogName {
conn.send <- msg
}
}
}
}
}
func (c *client) write() {
for msg := range c.send {
msgByte, _ := json.Marshal(msg) // 忽略错误
_, err := c.socket.Write(msgByte)
if err != nil {
manager.unregister <- c
printError(err)
break
}
}
}
func (c *client) read() {
for {
var reply string
if err := websocket.Message.Receive(c.socket, &reply); err != nil {
if err != io.EOF {
printError(err)
manager.unregister <- c
}
break
}
type recv struct {
LogName string `json:"logName"`
}
var rcv = &recv{}
if err := json.Unmarshal([]byte(reply), &rcv); err != nil {
manager.unregister <- c
printError(err)
break
}
c.see = rcv.LogName
}
}