mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-11-12 19:50:27 +00:00
Switch connAddr (udp map key) from string to a struct that allocates less. Reduce some other allocations. Use larger channel buffers to reduce backpressure from runtime jitter.
This commit is contained in:
Arceliar
parent
ef1e0c902f
commit
75965b6da4
@ -274,9 +274,14 @@ func (c *Core) DEBUG_getGlobalUDPAddr() net.Addr {
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}
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func (c *Core) DEBUG_maybeSendUDPKeys(saddr string) {
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addr := connAddr(saddr)
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udpAddr, err := net.ResolveUDPAddr("udp", saddr)
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if err != nil {
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panic(err)
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}
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var addr connAddr
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addr.fromUDPAddr(udpAddr)
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c.udp.mutex.RLock()
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_, isIn := c.udp.conns[connAddr(addr)]
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_, isIn := c.udp.conns[addr]
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c.udp.mutex.RUnlock()
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if !isIn {
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c.udp.sendKeys(addr)
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@ -171,10 +171,10 @@ func (p *peer) handleTraffic(packet []byte, pTypeLen int) {
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if to == nil {
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return
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}
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newTTLSlice := wire_encode_uint64(newTTL)
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newTTLLen := wire_uint64_len(newTTL)
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// This mutates the packet in-place if the length of the TTL changes!
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shift := ttlLen - len(newTTLSlice)
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copy(packet[ttlBegin+shift:], newTTLSlice)
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shift := ttlLen - newTTLLen
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wire_put_uint64(newTTL, packet[ttlBegin+shift:])
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copy(packet[shift:], packet[:pTypeLen])
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packet = packet[shift:]
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to.sendPacket(packet)
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@ -40,7 +40,7 @@ type router struct {
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func (r *router) init(core *Core) {
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r.core = core
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r.addr = *address_addrForNodeID(&r.core.dht.nodeID)
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in := make(chan []byte, 1) // TODO something better than this...
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in := make(chan []byte, 1024) // TODO something better than this...
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p := r.core.peers.newPeer(&r.core.boxPub, &r.core.sigPub) //, out, in)
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// TODO set in/out functions on the new peer...
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p.out = func(packet []byte) { in <- packet } // FIXME in theory it blocks...
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@ -50,8 +50,8 @@ func (r *router) init(core *Core) {
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// TODO attach these to the tun
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// Maybe that's the core's job...
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// It creates tun, creates the router, creates channels, sets them?
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recv := make(chan []byte, 1)
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send := make(chan []byte, 1)
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recv := make(chan []byte, 1024)
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send := make(chan []byte, 1024)
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r.recv = recv
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r.send = send
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r.core.tun.recv = recv
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@ -164,8 +164,8 @@ func (ss *sessions) createSession(theirPermKey *boxPubKey) *sessionInfo {
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sinfo.myHandle = *newHandle()
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sinfo.theirAddr = *address_addrForNodeID(getNodeID(&sinfo.theirPermPub))
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sinfo.theirSubnet = *address_subnetForNodeID(getNodeID(&sinfo.theirPermPub))
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sinfo.send = make(chan []byte, 1)
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sinfo.recv = make(chan *wire_trafficPacket, 1)
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sinfo.send = make(chan []byte, 1024)
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sinfo.recv = make(chan *wire_trafficPacket, 1024)
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go sinfo.doWorker()
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sinfo.time = time.Now()
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// Do some cleanup
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@ -21,8 +21,31 @@ type udpInterface struct {
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conns map[connAddr]*connInfo
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}
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type connAddr string // TODO something more efficient, but still a valid map key
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//type connAddr string // TODO something more efficient, but still a valid map key
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type connAddr struct {
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ip [16]byte
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port int
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zone string
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}
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func (c *connAddr) fromUDPAddr(u *net.UDPAddr) {
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copy(c.ip[:], u.IP.To16())
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c.port = u.Port
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c.zone = u.Zone
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}
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func (c *connAddr) toUDPAddr() *net.UDPAddr {
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var u net.UDPAddr
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u.IP = make([]byte, 16)
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copy(u.IP, c.ip[:])
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u.Port = c.port
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u.Zone = c.zone
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return &u
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}
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type connInfo struct {
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name string
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addr connAddr
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peer *peer
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linkIn chan []byte
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@ -54,10 +77,7 @@ func (iface *udpInterface) init(core *Core, addr string) {
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}
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func (iface *udpInterface) sendKeys(addr connAddr) {
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udpAddr, err := net.ResolveUDPAddr("udp", string(addr))
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if err != nil {
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panic(err)
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}
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udpAddr := addr.toUDPAddr()
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msg := []byte{}
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msg = udp_encode(msg, 0, 0, 0, nil)
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msg = append(msg, iface.core.boxPub[:]...)
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@ -91,7 +111,7 @@ func (iface *udpInterface) startConn(info *connInfo) {
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close(info.linkIn)
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close(info.keysIn)
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close(info.out)
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iface.core.log.Println("Removing peer:", info.addr)
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iface.core.log.Println("Removing peer:", info.name)
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}()
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for {
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select {
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@ -135,11 +155,13 @@ func (iface *udpInterface) handleKeys(msg []byte, addr connAddr) {
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conn, isIn := iface.conns[addr]
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iface.mutex.RUnlock() // TODO? keep the lock longer?...
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if !isIn {
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udpAddr, err := net.ResolveUDPAddr("udp", string(addr))
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if err != nil {
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panic(err)
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}
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udpAddr := addr.toUDPAddr()
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themNodeID := getNodeID(&ks.box)
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themAddr := address_addrForNodeID(themNodeID)
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themAddrString := net.IP(themAddr[:]).String()
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themString := fmt.Sprintf("%s@%s", themAddrString, udpAddr.String())
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conn = &connInfo{
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name: themString,
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addr: connAddr(addr),
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peer: iface.core.peers.newPeer(&ks.box, &ks.sig),
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linkIn: make(chan []byte, 1),
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@ -208,10 +230,10 @@ func (iface *udpInterface) handleKeys(msg []byte, addr connAddr) {
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}
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}
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go func() {
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//var chunks [][]byte
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var out []byte
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var chunks [][]byte
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for msg := range conn.out {
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var chunks [][]byte
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chunks = chunks[:0]
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bs := msg
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for len(bs) > udp_chunkSize {
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chunks, bs = append(chunks, bs[:udp_chunkSize]), bs[udp_chunkSize:]
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@ -238,11 +260,7 @@ func (iface *udpInterface) handleKeys(msg []byte, addr connAddr) {
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iface.mutex.Lock()
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iface.conns[addr] = conn
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iface.mutex.Unlock()
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themNodeID := getNodeID(&ks.box)
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themAddr := address_addrForNodeID(themNodeID)
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themAddrString := net.IP(themAddr[:]).String()
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themString := fmt.Sprintf("%s@%s", themAddrString, addr)
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iface.core.log.Println("Adding peer:", themString)
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iface.core.log.Println("Adding peer:", conn.name)
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go iface.startConn(conn)
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go conn.peer.linkLoop(conn.linkIn)
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iface.sendKeys(conn.addr)
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@ -279,7 +297,8 @@ func (iface *udpInterface) reader() {
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}
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//msg := append(util_getBytes(), bs[:n]...)
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msg := bs[:n]
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addr := connAddr(udpAddr.String())
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var addr connAddr
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addr.fromUDPAddr(udpAddr)
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if udp_isKeys(msg) {
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var them address
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copy(them[:], udpAddr.IP.To16())
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@ -44,6 +44,14 @@ func wire_put_uint64(elem uint64, out []byte) []byte {
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return append(out, bs...)
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}
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func wire_uint64_len(elem uint64) int {
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l := 1
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for e := elem >> 7; e > 0; e >>= 7 {
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l++
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}
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return l
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}
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// Decode uint64 from a []byte slice
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// Returns the decoded uint64 and the number of bytes used
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func wire_decode_uint64(bs []byte) (uint64, int) {
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