code.octet-stream.net Git - broadcaster/blob - server/command.go

   1 package main
   2
   3 import (
   4         "code.octet-stream.net/broadcaster/protocol"
   5         "encoding/json"
   6         "golang.org/x/net/websocket"
   7         "sync"
   8 )
   9
  10 type CommandRouter struct {
  11         connsMutex sync.Mutex
  12         conns      map[int]*websocket.Conn
  13 }
  14
  15 var commandRouter CommandRouter
  16
  17 func InitCommandRouter() {
  18         commandRouter.conns = make(map[int]*websocket.Conn)
  19 }
  20
  21 func (c *CommandRouter) AddWebsocket(radioId int, ws *websocket.Conn) {
  22         c.connsMutex.Lock()
  23         defer c.connsMutex.Unlock()
  24         c.conns[radioId] = ws
  25 }
  26
  27 func (c *CommandRouter) RemoveWebsocket(ws *websocket.Conn) {
  28         c.connsMutex.Lock()
  29         defer c.connsMutex.Unlock()
  30         key := -1
  31         for k, v := range c.conns {
  32                 if v == ws {
  33                         key = k
  34                 }
  35         }
  36         if key != -1 {
  37                 delete(c.conns, key)
  38         }
  39
  40 }
  41
  42 func (c *CommandRouter) Stop(radioId int) {
  43         c.connsMutex.Lock()
  44         defer c.connsMutex.Unlock()
  45         ws := c.conns[radioId]
  46         if ws != nil {
  47                 stop := protocol.StopMessage{
  48                         T: protocol.StopType,
  49                 }
  50                 msg, _ := json.Marshal(stop)
  51                 ws.Write(msg)
  52         }
  53 }