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refactor

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This commit is contained in:
Darien Raymond 2017-10-28 21:28:50 +02:00
parent 100391fdb7
commit ac5ab67862
1 changed files with 20 additions and 25 deletions
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45
transport/internet/udp/hub.go
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@ -38,15 +38,16 @@ func NewPayloadQueue(option ListenOption) *PayloadQueue {
return queue
}
func (v *PayloadQueue) Enqueue(payload Payload) {
size := len(v.queue)
// Enqueue adds the payload to the end of this queue.
func (q *PayloadQueue) Enqueue(payload Payload) {
size := len(q.queue)
idx := 0
if size > 1 {
idx = dice.Roll(size)
}
for i := 0; i < size; i++ {
select {
case v.queue[idx%size] <- payload:
case q.queue[idx%size] <- payload:
return
default:
idx++
@ -54,14 +55,14 @@ func (v *PayloadQueue) Enqueue(payload Payload) {
}
}
func (v *PayloadQueue) Dequeue(queue <-chan Payload) {
func (q *PayloadQueue) Dequeue(queue <-chan Payload) {
for payload := range queue {
v.callback(payload.payload, payload.source, payload.originalDest)
q.callback(payload.payload, payload.source, payload.originalDest)
}
}
func (v *PayloadQueue) Close() {
for _, queue := range v.queue {
func (q *PayloadQueue) Close() {
for _, queue := range q.queue {
close(queue)
}
}
@ -116,19 +117,19 @@ func ListenUDP(address net.Address, port net.Port, option ListenOption) (*Hub, e
return hub, nil
}
func (v *Hub) Close() {
v.cancel()
v.conn.Close()
func (h *Hub) Close() {
h.cancel()
h.conn.Close()
}
func (v *Hub) WriteTo(payload []byte, dest net.Destination) (int, error) {
return v.conn.WriteToUDP(payload, &net.UDPAddr{
func (h *Hub) WriteTo(payload []byte, dest net.Destination) (int, error) {
return h.conn.WriteToUDP(payload, &net.UDPAddr{
IP: dest.Address.IP(),
Port: int(dest.Port),
})
}
func (v *Hub) start(ctx context.Context) {
func (h *Hub) start(ctx context.Context) {
oobBytes := make([]byte, 256)
L:
for {
@ -142,7 +143,7 @@ L:
var noob int
var addr *net.UDPAddr
err := buffer.AppendSupplier(func(b []byte) (int, error) {
n, nb, _, a, e := ReadUDPMsg(v.conn, b, oobBytes)
n, nb, _, a, e := ReadUDPMsg(h.conn, b, oobBytes)
noob = nb
addr = a
return n, e
@ -158,20 +159,14 @@ L:
payload: buffer,
}
payload.source = net.UDPDestination(net.IPAddress(addr.IP), net.Port(addr.Port))
if v.option.ReceiveOriginalDest && noob > 0 {
if h.option.ReceiveOriginalDest && noob > 0 {
payload.originalDest = RetrieveOriginalDest(oobBytes[:noob])
}
v.queue.Enqueue(payload)
h.queue.Enqueue(payload)
}
v.queue.Close()
h.queue.Close()
}
// Connection returns the net.Conn underneath this hub.
// Private: Visible for testing only
func (v *Hub) Connection() net.Conn {
return v.conn
}
func (v *Hub) Addr() net.Addr {
return v.conn.LocalAddr()
func (h *Hub) Addr() net.Addr {
return h.conn.LocalAddr()
}