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websocket.go
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websocket.go
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package core
import (
"errors"
"time"
"github.com/gorilla/websocket"
)
type WebSocket struct {
conn *websocket.Conn
buf []byte
//stats
createdAt time.Time
closed bool
stats *Stats
}
func NewWebSocket(conn *websocket.Conn, stats *Stats) (ws *WebSocket) {
ws = &WebSocket{
conn: conn,
createdAt: time.Now(),
stats: stats,
}
return
}
func (ws *WebSocket) Read(p []byte) (n int, err error) {
if ws.closed == true {
return 0, errors.New("websocket closed")
}
if len(ws.buf) == 0 {
_, ws.buf, err = ws.conn.ReadMessage()
if err != nil {
return
}
}
n = copy(p, ws.buf)
ws.buf = ws.buf[n:]
if ws.stats != nil {
go ws.stats.AddDownloaded(uint64(n))
}
return
}
func (ws *WebSocket) Write(p []byte) (n int, err error) {
if ws.closed == true {
return 0, errors.New("websocket closed")
}
err = ws.conn.WriteMessage(websocket.BinaryMessage, p)
if err != nil {
return
}
n = len(p)
if ws.stats != nil {
go ws.stats.AddUploaded(uint64(n))
}
return
}
func (ws *WebSocket) Close() (err error) {
ws.conn.Close()
ws.closed = true
return
}