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chore: tuic use a udp pool too and auto close when outbound is garbage collected

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This commit is contained in:
wwqgtxx 2022-11-25 22:42:07 +08:00
parent 6c204d2b77
commit 7f40645934
2 changed files with 66 additions and 34 deletions
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99
adapter/outbound/tuic.go
View file

@ -26,6 +26,7 @@ import (
type Tuic struct {
*Base
dialFn func(ctx context.Context, t *Tuic, opts ...dialer.Option) (net.PacketConn, net.Addr, error)
newClient func(udp bool, opts ...dialer.Option) *tuic.Client
getClient func(udp bool, opts ...dialer.Option) *tuic.Client
}
@ -59,15 +60,7 @@ type TuicOption struct {
func (t *Tuic) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.Conn, error) {
opts = t.Base.DialOptions(opts...)
dialFn := func(ctx context.Context) (net.PacketConn, net.Addr, error) {
pc, err := dialer.ListenPacket(ctx, "udp", "", opts...)
if err != nil {
return nil, nil, err
}
addr, err := resolveUDPAddrWithPrefer(ctx, "udp", t.addr, t.prefer)
if err != nil {
return nil, nil, err
}
return pc, addr, err
return t.dialFn(ctx, t, opts...)
}
conn, err := t.getClient(false, opts...).DialContext(ctx, metadata, dialFn)
if errors.Is(err, tuic.TooManyOpenStreams) {
@ -83,15 +76,7 @@ func (t *Tuic) DialContext(ctx context.Context, metadata *C.Metadata, opts ...di
func (t *Tuic) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.PacketConn, err error) {
opts = t.Base.DialOptions(opts...)
dialFn := func(ctx context.Context) (net.PacketConn, net.Addr, error) {
pc, err := dialer.ListenPacket(ctx, "udp", "", opts...)
if err != nil {
return nil, nil, err
}
addr, err := resolveUDPAddrWithPrefer(ctx, "udp", t.addr, t.prefer)
if err != nil {
return nil, nil, err
}
return pc, addr, err
return t.dialFn(ctx, t, opts...)
}
pc, err := t.getClient(true, opts...).ListenPacketContext(ctx, metadata, dialFn)
if errors.Is(err, tuic.TooManyOpenStreams) {
@ -195,11 +180,67 @@ func NewTuic(option TuicOption) (*Tuic, error) {
tlsConfig.ServerName = ""
}
tkn := tuic.GenTKN(option.Token)
t := &Tuic{
Base: &Base{
name: option.Name,
addr: addr,
tp: C.Tuic,
udp: true,
iface: option.Interface,
prefer: C.NewDNSPrefer(option.IPVersion),
},
}
type dialResult struct {
pc net.PacketConn
addr net.Addr
err error
}
dialResultMap := make(map[any]dialResult)
dialResultMutex := &sync.Mutex{}
tcpClients := list.New[*tuic.Client]()
tcpClientsMutex := &sync.Mutex{}
udpClients := list.New[*tuic.Client]()
udpClientsMutex := &sync.Mutex{}
newClient := func(udp bool, opts ...dialer.Option) *tuic.Client {
t.dialFn = func(ctx context.Context, t *Tuic, opts ...dialer.Option) (pc net.PacketConn, addr net.Addr, err error) {
var o any = *dialer.ApplyOptions(opts...)
dialResultMutex.Lock()
dr, ok := dialResultMap[o]
dialResultMutex.Unlock()
if ok {
return dr.pc, dr.addr, dr.err
}
pc, err = dialer.ListenPacket(ctx, "udp", "", opts...)
if err != nil {
return nil, nil, err
}
addr, err = resolveUDPAddrWithPrefer(ctx, "udp", t.addr, t.prefer)
if err != nil {
return nil, nil, err
}
dr.pc, dr.addr, dr.err = pc, addr, err
dialResultMutex.Lock()
dialResultMap[o] = dr
dialResultMutex.Unlock()
return pc, addr, err
}
closeFn := func(t *Tuic) {
dialResultMutex.Lock()
defer dialResultMutex.Unlock()
for key := range dialResultMap {
pc := dialResultMap[key].pc
if pc != nil {
_ = pc.Close()
}
delete(dialResultMap, key)
}
}
t.newClient = func(udp bool, opts ...dialer.Option) *tuic.Client {
clients := tcpClients
clientsMutex := tcpClientsMutex
if udp {
@ -222,6 +263,7 @@ func NewTuic(option TuicOption) (*Tuic, error) {
ReduceRtt: option.ReduceRtt,
RequestTimeout: option.RequestTimeout,
MaxUdpRelayPacketSize: option.MaxUdpRelayPacketSize,
Inference: t,
Key: o,
LastVisited: time.Now(),
UDP: udp,
@ -230,7 +272,7 @@ func NewTuic(option TuicOption) (*Tuic, error) {
runtime.SetFinalizer(client, closeTuicClient)
return client
}
getClient := func(udp bool, opts ...dialer.Option) *tuic.Client {
t.getClient = func(udp bool, opts ...dialer.Option) *tuic.Client {
clients := tcpClients
clientsMutex := tcpClientsMutex
if udp {
@ -272,24 +314,13 @@ func NewTuic(option TuicOption) (*Tuic, error) {
}()
if bestClient == nil {
return newClient(udp, opts...)
return t.newClient(udp, opts...)
} else {
return bestClient
}
}
return &Tuic{
Base: &Base{
name: option.Name,
addr: addr,
tp: C.Tuic,
udp: true,
iface: option.Interface,
prefer: C.NewDNSPrefer(option.IPVersion),
},
newClient: newClient,
getClient: getClient,
}, nil
runtime.SetFinalizer(t, closeFn)
return t, nil
}
func closeTuicClient(client *tuic.Client) {

1
transport/tuic/client.go
View file

@ -39,6 +39,7 @@ type Client struct {
RequestTimeout int
MaxUdpRelayPacketSize int
Inference any
Key any
LastVisited time.Time
UDP bool