Improve: pool buffer alloc

proxy/redir/udp.go

@@ -34,10 +34,10 @@ func NewRedirUDPProxy(addr string) (*RedirUDPListener, error) {
 	go func() {
 		oob := make([]byte, 1024)
 		for {
-			buf := pool.BufPool.Get().([]byte)
+			buf := pool.Get(pool.RelayBufferSize)
 			n, oobn, _, lAddr, err := c.ReadMsgUDP(buf, oob)
 			if err != nil {
-				pool.BufPool.Put(buf[:cap(buf)])
+				pool.Put(buf)
 				if rl.closed {
 					break
 				}

proxy/redir/utils.go

@@ -33,6 +33,6 @@ func (c *packet) LocalAddr() net.Addr {
 }
 
 func (c *packet) Drop() {
-	pool.BufPool.Put(c.buf[:cap(c.buf)])
+	pool.Put(c.buf)
 	return
 }