fix spelling

fec.go

@@ -19,7 +19,7 @@ const (
 type (
 	// FEC defines forward error correction for packets
 	FEC struct {
-		rx           []fecPacket // ordered rx queue
+		rx           []fecPacket // ordered receive queue
 		rxlimit      int         // queue size limit
 		dataShards   int
 		parityShards int
@@ -73,7 +73,7 @@ func (fec *FEC) decode(data []byte) fecPacket {
 	pkt.seqid = binary.LittleEndian.Uint32(data)
 	pkt.flag = binary.LittleEndian.Uint16(data[4:])
 	pkt.ts = currentMs()
-	// alloc & copy
+	// allocate memory & copy
 	buf := fec.xmitBuf.Get().([]byte)
 	xorBytes(buf, buf, buf)
 	copy(buf, data[6:])
@@ -213,7 +213,7 @@ func (fec *FEC) input(pkt fecPacket) (recovered [][]byte) {
 		}
 	}
 
-	// keep rxlen
+	// keep rxlimit
 	if len(fec.rx) > fec.rxlimit {
 		fec.xmitBuf.Put(fec.rx[0].data) // free
 		fec.rx = fec.rx[1:]

sess.go

@@ -79,7 +79,7 @@ func newUDPSession(conv uint32, dataShards, parityShards int, l *Listener, conn
 	sess.xmitBuf.New = func() interface{} {
 		return make([]byte, mtuLimit)
 	}
-	// caculate header size
+	// calculate header size
 	if sess.block != nil {
 		sess.headerSize += cryptHeaderSize
 	}
@@ -307,7 +307,7 @@ func (s *UDPSession) SetDSCP(tos int) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	if err := ipv4.NewConn(s.conn).SetTOS(tos << 2); err != nil {
-		log.Println("set tos:", err)
+		log.Println("dscp:", err)
 	}
 }
 
@@ -730,7 +730,7 @@ func ListenWithOptions(laddr string, block BlockCrypt, dataShards, parityShards
 		return make([]byte, mtuLimit)
 	}
 
-	// caculate header size
+	// calculate header size
 	if l.block != nil {
 		l.headerSize += cryptHeaderSize
 	}
@@ -742,12 +742,12 @@ func ListenWithOptions(laddr string, block BlockCrypt, dataShards, parityShards
 	return l, nil
 }
 
-// Dial connects to the remote address raddr on the network "udp"
+// Dial connects to the remote address "raddr" on the network "udp"
 func Dial(raddr string) (*UDPSession, error) {
 	return DialWithOptions(raddr, nil, 10, 3)
 }
 
-// DialWithOptions connects to the remote address raddr on the network "udp" with packet encryption
+// DialWithOptions connects to the remote address "raddr" on the network "udp" with packet encryption
 func DialWithOptions(raddr string, block BlockCrypt, dataShards, parityShards int) (*UDPSession, error) {
 	udpaddr, err := net.ResolveUDPAddr("udp", raddr)
 	if err != nil {