dispatch/server/websocket.go

64 lines
817 B
Go

package server
import (
"time"
"github.com/gorilla/websocket"
)
type wsConn struct {
conn *websocket.Conn
in chan WSRequest
out chan WSResponse
}
func newWSConn(conn *websocket.Conn) *wsConn {
return &wsConn{
conn: conn,
in: make(chan WSRequest, 32),
out: make(chan WSResponse, 32),
}
}
func (c *wsConn) send() {
var err error
ping := time.Tick(20 * time.Second)
for {
select {
case res, ok := <-c.out:
if !ok {
return
}
err = c.conn.WriteJSON(res)
case <-ping:
err = c.conn.WriteJSON(WSResponse{Type: "ping"})
}
if err != nil {
return
}
}
}
func (c *wsConn) recv() {
var req WSRequest
for {
err := c.conn.ReadJSON(&req)
if err != nil {
close(c.in)
return
}
c.in <- req
}
}
func (c *wsConn) close() {
close(c.out)
c.conn.Close()
}