chore: remove congestion factory

cmd/client.go

@@ -17,7 +17,6 @@ import (
 	"github.com/yosuke-furukawa/json5/encoding/json5"
 
 	"github.com/HyNetwork/hysteria/pkg/acl"
-	hyCongestion "github.com/HyNetwork/hysteria/pkg/congestion"
 	"github.com/HyNetwork/hysteria/pkg/core"
 	hyHTTP "github.com/HyNetwork/hysteria/pkg/http"
 	"github.com/HyNetwork/hysteria/pkg/obfs"
@@ -26,7 +25,6 @@ import (
 	"github.com/HyNetwork/hysteria/pkg/tproxy"
 	"github.com/HyNetwork/hysteria/pkg/transport"
 	"github.com/lucas-clemente/quic-go"
-	"github.com/lucas-clemente/quic-go/congestion"
 	"github.com/sirupsen/logrus"
 )
 
@@ -145,10 +143,8 @@ func client(config *clientConfig) {
 	for {
 		try += 1
 		c, err := core.NewClient(config.Server, config.Protocol, auth, tlsConfig, quicConfig,
-			transport.DefaultClientTransport, up, down,
-			func(refBPS uint64) congestion.CongestionControl {
-				return hyCongestion.NewBrutalSender(congestion.ByteCount(refBPS))
-			}, obfuscator, func(err error) {
+			transport.DefaultClientTransport, up, down, obfuscator,
+			func(err error) {
 				if config.QuitOnDisconnect {
 					logrus.WithFields(logrus.Fields{
 						"addr":  config.Server,

cmd/server.go

@@ -10,14 +10,12 @@ import (
 
 	"github.com/HyNetwork/hysteria/cmd/auth"
 	"github.com/HyNetwork/hysteria/pkg/acl"
-	hyCongestion "github.com/HyNetwork/hysteria/pkg/congestion"
 	"github.com/HyNetwork/hysteria/pkg/core"
 	"github.com/HyNetwork/hysteria/pkg/obfs"
 	"github.com/HyNetwork/hysteria/pkg/pmtud_fix"
 	"github.com/HyNetwork/hysteria/pkg/sockopt"
 	"github.com/HyNetwork/hysteria/pkg/transport"
 	"github.com/lucas-clemente/quic-go"
-	"github.com/lucas-clemente/quic-go/congestion"
 	"github.com/oschwald/geoip2-golang"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
@@ -224,10 +222,7 @@ func server(config *serverConfig) {
 	}
 	up, down, _ := config.Speed()
 	server, err := core.NewServer(config.Listen, config.Protocol, tlsConfig, quicConfig, transport.DefaultServerTransport,
-		up, down,
-		func(refBPS uint64) congestion.CongestionControl {
-			return hyCongestion.NewBrutalSender(congestion.ByteCount(refBPS))
-		}, config.DisableUDP, aclEngine, obfuscator, connectFunc, disconnectFunc,
+		up, down, config.DisableUDP, aclEngine, obfuscator, connectFunc, disconnectFunc,
 		tcpRequestFunc, tcpErrorFunc, udpRequestFunc, udpErrorFunc, promReg)
 	if err != nil {
 		logrus.WithField("error", err).Fatal("Failed to initialize server")

pkg/congestion/brutal.go

@@ -30,9 +30,9 @@ type pktInfo struct {
 	LossCount uint64
 }
 
-func NewBrutalSender(bps congestion.ByteCount) *BrutalSender {
+func NewBrutalSender(bps uint64) *BrutalSender {
 	bs := &BrutalSender{
-		bps:             bps,
+		bps:             congestion.ByteCount(bps),
 		maxDatagramSize: initMaxDatagramSize,
 		ackRate:         1,
 	}

pkg/core/client.go

@@ -12,27 +12,25 @@ import (
 	"sync"
 	"time"
 
+	"github.com/HyNetwork/hysteria/pkg/congestion"
+
 	"github.com/HyNetwork/hysteria/pkg/obfs"
 	"github.com/HyNetwork/hysteria/pkg/pmtud_fix"
 	"github.com/HyNetwork/hysteria/pkg/transport"
 	"github.com/HyNetwork/hysteria/pkg/utils"
 	"github.com/lucas-clemente/quic-go"
-	"github.com/lucas-clemente/quic-go/congestion"
 	"github.com/lunixbochs/struc"
 )
 
 var ErrClosed = errors.New("closed")
 
-type CongestionFactory func(refBPS uint64) congestion.CongestionControl
-
 type Client struct {
-	transport         *transport.ClientTransport
-	serverAddr        string
-	protocol          string
-	sendBPS, recvBPS  uint64
-	auth              []byte
-	congestionFactory CongestionFactory
-	obfuscator        obfs.Obfuscator
+	transport        *transport.ClientTransport
+	serverAddr       string
+	protocol         string
+	sendBPS, recvBPS uint64
+	auth             []byte
+	obfuscator       obfs.Obfuscator
 
 	tlsConfig  *tls.Config
 	quicConfig *quic.Config
@@ -49,8 +47,8 @@ type Client struct {
 }
 
 func NewClient(serverAddr string, protocol string, auth []byte, tlsConfig *tls.Config, quicConfig *quic.Config,
-	transport *transport.ClientTransport, sendBPS uint64, recvBPS uint64, congestionFactory CongestionFactory,
-	obfuscator obfs.Obfuscator, quicReconnectFunc func(err error),
+	transport *transport.ClientTransport, sendBPS uint64, recvBPS uint64, obfuscator obfs.Obfuscator,
+	quicReconnectFunc func(err error),
 ) (*Client, error) {
 	quicConfig.DisablePathMTUDiscovery = quicConfig.DisablePathMTUDiscovery || pmtud_fix.DisablePathMTUDiscovery
 	c := &Client{
@@ -60,7 +58,6 @@ func NewClient(serverAddr string, protocol string, auth []byte, tlsConfig *tls.C
 		sendBPS:           sendBPS,
 		recvBPS:           recvBPS,
 		auth:              auth,
-		congestionFactory: congestionFactory,
 		obfuscator:        obfuscator,
 		tlsConfig:         tlsConfig,
 		quicConfig:        quicConfig,
@@ -125,8 +122,8 @@ func (c *Client) handleControlStream(qs quic.Connection, stream quic.Stream) (bo
 		return false, "", err
 	}
 	// Set the congestion accordingly
-	if sh.OK && c.congestionFactory != nil {
-		qs.SetCongestionControl(c.congestionFactory(sh.Rate.RecvBPS))
+	if sh.OK {
+		qs.SetCongestionControl(congestion.NewBrutalSender(sh.Rate.RecvBPS))
 	}
 	return sh.OK, sh.Message, nil
 }

pkg/core/server.go

@@ -7,6 +7,8 @@ import (
 	"fmt"
 	"net"
 
+	"github.com/HyNetwork/hysteria/pkg/congestion"
+
 	"github.com/HyNetwork/hysteria/pkg/acl"
 	"github.com/HyNetwork/hysteria/pkg/obfs"
 	"github.com/HyNetwork/hysteria/pkg/pmtud_fix"
@@ -26,11 +28,10 @@ type (
 )
 
 type Server struct {
-	transport         *transport.ServerTransport
-	sendBPS, recvBPS  uint64
-	congestionFactory CongestionFactory
-	disableUDP        bool
-	aclEngine         *acl.Engine
+	transport        *transport.ServerTransport
+	sendBPS, recvBPS uint64
+	disableUDP       bool
+	aclEngine        *acl.Engine
 
 	connectFunc    ConnectFunc
 	disconnectFunc DisconnectFunc
@@ -46,7 +47,7 @@ type Server struct {
 }
 
 func NewServer(addr string, protocol string, tlsConfig *tls.Config, quicConfig *quic.Config, transport *transport.ServerTransport,
-	sendBPS uint64, recvBPS uint64, congestionFactory CongestionFactory, disableUDP bool, aclEngine *acl.Engine,
+	sendBPS uint64, recvBPS uint64, disableUDP bool, aclEngine *acl.Engine,
 	obfuscator obfs.Obfuscator, connectFunc ConnectFunc, disconnectFunc DisconnectFunc,
 	tcpRequestFunc TCPRequestFunc, tcpErrorFunc TCPErrorFunc,
 	udpRequestFunc UDPRequestFunc, udpErrorFunc UDPErrorFunc, promRegistry *prometheus.Registry,
@@ -57,19 +58,18 @@ func NewServer(addr string, protocol string, tlsConfig *tls.Config, quicConfig *
 		return nil, err
 	}
 	s := &Server{
-		listener:          listener,
-		transport:         transport,
-		sendBPS:           sendBPS,
-		recvBPS:           recvBPS,
-		congestionFactory: congestionFactory,
-		disableUDP:        disableUDP,
-		aclEngine:         aclEngine,
-		connectFunc:       connectFunc,
-		disconnectFunc:    disconnectFunc,
-		tcpRequestFunc:    tcpRequestFunc,
-		tcpErrorFunc:      tcpErrorFunc,
-		udpRequestFunc:    udpRequestFunc,
-		udpErrorFunc:      udpErrorFunc,
+		listener:       listener,
+		transport:      transport,
+		sendBPS:        sendBPS,
+		recvBPS:        recvBPS,
+		disableUDP:     disableUDP,
+		aclEngine:      aclEngine,
+		connectFunc:    connectFunc,
+		disconnectFunc: disconnectFunc,
+		tcpRequestFunc: tcpRequestFunc,
+		tcpErrorFunc:   tcpErrorFunc,
+		udpRequestFunc: udpRequestFunc,
+		udpErrorFunc:   udpErrorFunc,
 	}
 	if promRegistry != nil {
 		s.upCounterVec = prometheus.NewCounterVec(prometheus.CounterOpts{
@@ -172,8 +172,8 @@ func (s *Server) handleControlStream(cs quic.Connection, stream quic.Stream) ([]
 		return nil, false, false, err
 	}
 	// Set the congestion accordingly
-	if ok && s.congestionFactory != nil {
-		cs.SetCongestionControl(s.congestionFactory(serverSendBPS))
+	if ok {
+		cs.SetCongestionControl(congestion.NewBrutalSender(serverSendBPS))
 	}
 	return ch.Auth, ok, vb[0] == protocolVersionV2, nil
 }