83 lines
1.4 KiB
Go
83 lines
1.4 KiB
Go
package websocketserver
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"golang.org/x/net/websocket"
|
|
)
|
|
|
|
const channelBufSize = 100
|
|
|
|
var maxID = 0
|
|
|
|
//Client struct
|
|
type Client struct {
|
|
id int
|
|
ws *websocket.Conn
|
|
server *Server
|
|
ch chan interface{}
|
|
doneCh chan bool
|
|
}
|
|
|
|
//NewClient creates a new Client
|
|
func NewClient(ws *websocket.Conn, server *Server) *Client {
|
|
|
|
if ws == nil {
|
|
panic("ws cannot be nil")
|
|
}
|
|
|
|
if server == nil {
|
|
panic("server cannot be nil")
|
|
}
|
|
|
|
maxID++
|
|
|
|
return &Client{
|
|
id: maxID,
|
|
ws: ws,
|
|
server: server,
|
|
ch: make(chan interface{}, channelBufSize),
|
|
doneCh: make(chan bool),
|
|
}
|
|
}
|
|
|
|
//GetConnection the websocket connection of a listen client
|
|
func (c *Client) GetConnection() *websocket.Conn {
|
|
return c.ws
|
|
}
|
|
|
|
//Write send the msg informations to the clients
|
|
func (c *Client) Write(msg interface{}) {
|
|
select {
|
|
case c.ch <- msg:
|
|
default:
|
|
c.server.Del(c)
|
|
err := fmt.Errorf("Client %d is disconnected.", c.id)
|
|
c.server.Err(err)
|
|
}
|
|
}
|
|
|
|
// Listen Write and Read request via chanel
|
|
func (c *Client) Listen() {
|
|
c.listen()
|
|
}
|
|
|
|
// listen for new msg informations
|
|
func (c *Client) listen() {
|
|
for {
|
|
select {
|
|
case msg := <-c.ch:
|
|
err := websocket.JSON.Send(c.ws, msg)
|
|
if err != nil {
|
|
c.doneCh <- true
|
|
}
|
|
case gone := <-c.doneCh:
|
|
if gone {
|
|
c.server.Del(c)
|
|
err := fmt.Errorf("Client %d is disconnected.", c.id)
|
|
c.server.Err(err)
|
|
}
|
|
}
|
|
}
|
|
}
|