/
websocketContext.go
87 lines (73 loc) · 1.75 KB
/
websocketContext.go
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package ws
import (
"github.com/gorilla/websocket"
"log"
"time"
)
const (
// Time allowed to write a message to the peer.
writeWait = 10 * time.Second
// Time allowed to read the next pong message from the peer.
pongWait = 60 * time.Second
// Send pings to peer with this period. Must be less than pongWait.
pingPeriod = (pongWait * 9) / 10
// Maximum message size allowed from peer.
maxMessageSize = 512
)
type WsContext struct {
conn *websocket.Conn
reader chan *[]byte
spoiler chan error
}
func (c *WsContext) start() {
c.reader = make(chan *[]byte)
c.spoiler = make(chan error)
c.conn.SetWriteDeadline(time.Now().Add(writeWait))
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 })
go c.read()
go c.startPingPing()
}
func (c *WsContext) startPingPing() {
ticker := time.NewTicker(pingPeriod)
defer func() {
ticker.Stop()
}()
for {
select {
case <-ticker.C:
if err := c.conn.WriteMessage(websocket.PingMessage, []byte{}); err != nil {
return
}
}
}
}
func (c *WsContext) WriteMessage(message string) {
log.Println("Writing =>", message)
err := c.conn.WriteMessage(websocket.TextMessage, []byte(message))
if err != nil {
log.Println(err.Error())
c.spoiler <- err
}
}
func (c *WsContext) WriteBinrayData(data *[]byte) {
}
func (c *WsContext) read() {
for {
_, message, err := c.conn.ReadMessage()
if err != nil {
log.Println(err.Error())
c.spoiler <- err
return
}
c.reader <- &message
}
}
func (c *WsContext) Close() {
log.Println("Closing connection")
c.conn.WriteMessage(websocket.CloseMessage, []byte{})
c.conn.Close()
close(c.reader)
close(c.spoiler)
}