fix

Fixes https://github.com/XTLS/Xray-core/issues/4194

core/core.go

@@ -19,7 +19,7 @@ import (
 var (
 	Version_x byte = 24
 	Version_y byte = 12
-	Version_z byte = 31
+	Version_z byte = 18
 )
 
 var (

infra/conf/transport_internet.go

@@ -240,8 +240,8 @@ type XmuxConfig struct {
 	MaxConcurrency   Int32Range `json:"maxConcurrency"`
 	MaxConnections   Int32Range `json:"maxConnections"`
 	CMaxReuseTimes   Int32Range `json:"cMaxReuseTimes"`
+	CMaxLifetimeMs   Int32Range `json:"cMaxLifetimeMs"`
 	HMaxRequestTimes Int32Range `json:"hMaxRequestTimes"`
-	HMaxReusableSecs Int32Range `json:"hMaxReusableSecs"`
 	HKeepAlivePeriod int64      `json:"hKeepAlivePeriod"`
 }
 
@@ -262,6 +262,7 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 		extra.Host = c.Host
 		extra.Path = c.Path
 		extra.Mode = c.Mode
+		extra.Extra = c.Extra
 		c = &extra
 	}
 
@@ -286,10 +287,10 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 	if c.Xmux == (XmuxConfig{}) {
 		c.Xmux.MaxConcurrency.From = 16
 		c.Xmux.MaxConcurrency.To = 32
-		c.Xmux.HMaxRequestTimes.From = 600
+		c.Xmux.CMaxReuseTimes.From = 64
+		c.Xmux.CMaxReuseTimes.To = 128
+		c.Xmux.HMaxRequestTimes.From = 800
 		c.Xmux.HMaxRequestTimes.To = 900
-		c.Xmux.HMaxReusableSecs.From = 1800
-		c.Xmux.HMaxReusableSecs.To = 3000
 	}
 
 	config := &splithttp.Config{
@@ -307,8 +308,8 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 			MaxConcurrency:   newRangeConfig(c.Xmux.MaxConcurrency),
 			MaxConnections:   newRangeConfig(c.Xmux.MaxConnections),
 			CMaxReuseTimes:   newRangeConfig(c.Xmux.CMaxReuseTimes),
+			CMaxLifetimeMs:   newRangeConfig(c.Xmux.CMaxLifetimeMs),
 			HMaxRequestTimes: newRangeConfig(c.Xmux.HMaxRequestTimes),
-			HMaxReusableSecs: newRangeConfig(c.Xmux.HMaxReusableSecs),
 			HKeepAlivePeriod: c.Xmux.HKeepAlivePeriod,
 		},
 	}
@@ -317,6 +318,9 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 		if c.Mode == "stream-one" {
 			return nil, errors.New(`Can not use "downloadSettings" in "stream-one" mode.`)
 		}
+		if c.Extra != nil {
+			c.DownloadSettings.SocketSettings = nil
+		}
 		var err error
 		if config.DownloadSettings, err = c.DownloadSettings.Build(); err != nil {
 			return nil, errors.New(`Failed to build "downloadSettings".`).Base(err)
@@ -685,7 +689,7 @@ type SocketConfig struct {
 	TCPCongestion        string                 `json:"tcpCongestion"`
 	TCPWindowClamp       int32                  `json:"tcpWindowClamp"`
 	TCPMaxSeg            int32                  `json:"tcpMaxSeg"`
-	Penetrate            bool                   `json:"penetrate"`
+	TcpNoDelay           bool                   `json:"tcpNoDelay"`
 	TCPUserTimeout       int32                  `json:"tcpUserTimeout"`
 	V6only               bool                   `json:"v6only"`
 	Interface            string                 `json:"interface"`
@@ -772,7 +776,7 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
 		TcpCongestion:        c.TCPCongestion,
 		TcpWindowClamp:       c.TCPWindowClamp,
 		TcpMaxSeg:            c.TCPMaxSeg,
-		Penetrate:            c.Penetrate,
+		TcpNoDelay:           c.TcpNoDelay,
 		TcpUserTimeout:       c.TCPUserTimeout,
 		V6Only:               c.V6only,
 		Interface:            c.Interface,

infra/conf/xray.go

@@ -24,7 +24,6 @@ var (
 		"dokodemo-door": func() interface{} { return new(DokodemoConfig) },
 		"http":          func() interface{} { return new(HTTPServerConfig) },
 		"shadowsocks":   func() interface{} { return new(ShadowsocksServerConfig) },
-		"mixed":         func() interface{} { return new(SocksServerConfig) },
 		"socks":         func() interface{} { return new(SocksServerConfig) },
 		"vless":         func() interface{} { return new(VLessInboundConfig) },
 		"vmess":         func() interface{} { return new(VMessInboundConfig) },

proxy/dokodemo/dokodemo.go

@@ -2,8 +2,8 @@ package dokodemo
 
 import (
 	"context"
-	"runtime"
 	"sync/atomic"
+	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
@@ -115,7 +115,14 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 
 	plcy := d.policy()
 	ctx, cancel := context.WithCancel(ctx)
-	timer := signal.CancelAfterInactivity(ctx, cancel, plcy.Timeouts.ConnectionIdle)
+
+	var timer *signal.ActivityTimer
+	// if dns req, set a short timeout value
+	if dest.Port == 53 {
+		timer = signal.CancelAfterInactivity(ctx, cancel, 10*time.Second)
+	} else {
+		timer = signal.CancelAfterInactivity(ctx, cancel, plcy.Timeouts.ConnectionIdle)
+	}
 
 	if inbound != nil {
 		inbound.Timer = timer
@@ -148,6 +155,10 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 		return nil
 	}
 
+	tproxyRequest := func() error {
+		return nil
+	}
+
 	var writer buf.Writer
 	if network == net.Network_TCP {
 		writer = buf.NewWriter(conn)
@@ -177,12 +188,6 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 				return err
 			}
 			writer = NewPacketWriter(pConn, &dest, mark, back)
-			defer func() {
-				runtime.Gosched()
-				common.Interrupt(link.Reader) // maybe duplicated
-				runtime.Gosched()
-				writer.(*PacketWriter).Close() // close fake UDP conns
-			}()
 			/*
 				sockopt := &internet.SocketConfig{
 					Tproxy: internet.SocketConfig_TProxy,
@@ -221,9 +226,8 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 	responseDone := func() error {
 		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
 
-		if network == net.Network_UDP && destinationOverridden {
-			buf.Copy(link.Reader, writer) // respect upload's timeout
-			return nil
+		if pw, ok := writer.(*PacketWriter); ok {
+			defer pw.Close()
 		}
 
 		if err := buf.Copy(link.Reader, writer, buf.UpdateActivity(timer)); err != nil {
@@ -232,13 +236,11 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 		return nil
 	}
 
-	if err := task.Run(ctx,
-		task.OnSuccess(func() error { return task.Run(ctx, requestDone) }, task.Close(link.Writer)),
-		responseDone); err != nil {
-		runtime.Gosched()
-		common.Interrupt(link.Writer)
-		runtime.Gosched()
+	if err := task.Run(ctx, task.OnSuccess(func() error {
+		return task.Run(ctx, requestDone, tproxyRequest)
+	}, task.Close(link.Writer)), responseDone); err != nil {
 		common.Interrupt(link.Reader)
+		common.Interrupt(link.Writer)
 		return errors.New("connection ends").Base(err)
 	}
 

transport/internet/config.pb.go

@@ -448,7 +448,7 @@ type SocketConfig struct {
 	TcpWindowClamp             int32            `protobuf:"varint,15,opt,name=tcp_window_clamp,json=tcpWindowClamp,proto3" json:"tcp_window_clamp,omitempty"`
 	TcpUserTimeout             int32            `protobuf:"varint,16,opt,name=tcp_user_timeout,json=tcpUserTimeout,proto3" json:"tcp_user_timeout,omitempty"`
 	TcpMaxSeg                  int32            `protobuf:"varint,17,opt,name=tcp_max_seg,json=tcpMaxSeg,proto3" json:"tcp_max_seg,omitempty"`
-	Penetrate                  bool             `protobuf:"varint,18,opt,name=penetrate,proto3" json:"penetrate,omitempty"`
+	TcpNoDelay                 bool             `protobuf:"varint,18,opt,name=tcp_no_delay,json=tcpNoDelay,proto3" json:"tcp_no_delay,omitempty"`
 	TcpMptcp                   bool             `protobuf:"varint,19,opt,name=tcp_mptcp,json=tcpMptcp,proto3" json:"tcp_mptcp,omitempty"`
 	CustomSockopt              []*CustomSockopt `protobuf:"bytes,20,rep,name=customSockopt,proto3" json:"customSockopt,omitempty"`
 }
@@ -602,9 +602,9 @@ func (x *SocketConfig) GetTcpMaxSeg() int32 {
 	return 0
 }
 
-func (x *SocketConfig) GetPenetrate() bool {
+func (x *SocketConfig) GetTcpNoDelay() bool {
 	if x != nil {
-		return x.Penetrate
+		return x.TcpNoDelay
 	}
 	return false
 }
@@ -678,7 +678,7 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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 	0x69, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x6d, 0x61, 0x72, 0x6b, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05,
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@@ -724,36 +724,36 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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 }
 
 var (

transport/internet/config.proto

@@ -111,7 +111,7 @@ message SocketConfig {
 
   int32 tcp_max_seg = 17;
 
-  bool penetrate = 18;
+  bool tcp_no_delay = 18;
 
   bool tcp_mptcp = 19;
 

transport/internet/sockopt_darwin.go

@@ -136,6 +136,12 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
 				return errors.New("failed to unset SO_KEEPALIVE", err)
 			}
 		}
+
+		if config.TcpNoDelay {
+			if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_NODELAY, 1); err != nil {
+				return errors.New("failed to set TCP_NODELAY", err)
+			}
+		}
 	}
 
 	return nil

transport/internet/sockopt_linux.go

@@ -103,6 +103,11 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
 			}
 		}
 
+		if config.TcpNoDelay {
+			if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, unix.TCP_NODELAY, 1); err != nil {
+				return errors.New("failed to set TCP_NODELAY", err)
+			}
+		}
 		if len(config.CustomSockopt) > 0 {
 			for _, custom := range config.CustomSockopt {
 				var level = 0x6 // default TCP

transport/internet/sockopt_windows.go

@@ -61,6 +61,11 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
 				return errors.New("failed to unset SO_KEEPALIVE", err)
 			}
 		}
+		if config.TcpNoDelay {
+			if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_TCP, syscall.TCP_NODELAY, 1); err != nil {
+				return errors.New("failed to set TCP_NODELAY", err)
+			}
+		}
 	}
 
 	return nil

transport/internet/splithttp/config.go

@@ -64,15 +64,12 @@ func (c *Config) WriteResponseHeader(writer http.ResponseWriter) {
 	}
 }
 
-func (c *Config) GetNormalizedXPaddingBytes() RangeConfig {
-	if c.XPaddingBytes == nil || c.XPaddingBytes.To == 0 {
-		return RangeConfig{
-			From: 100,
-			To:   1000,
-		}
+func (c *Config) GetNormalizedScMaxBufferedPosts() int {
+	if c.ScMaxBufferedPosts == 0 {
+		return 30
 	}
 
-	return *c.XPaddingBytes
+	return int(c.ScMaxBufferedPosts)
 }
 
 func (c *Config) GetNormalizedScMaxEachPostBytes() RangeConfig {
@@ -97,34 +94,26 @@ func (c *Config) GetNormalizedScMinPostsIntervalMs() RangeConfig {
 	return *c.ScMinPostsIntervalMs
 }
 
-func (c *Config) GetNormalizedScMaxBufferedPosts() int {
-	if c.ScMaxBufferedPosts == 0 {
-		return 30
+func (c *Config) GetNormalizedXPaddingBytes() RangeConfig {
+	if c.XPaddingBytes == nil || c.XPaddingBytes.To == 0 {
+		return RangeConfig{
+			From: 100,
+			To:   1000,
+		}
 	}
 
-	return int(c.ScMaxBufferedPosts)
+	return *c.XPaddingBytes
 }
 
-func (m *XmuxConfig) GetNormalizedMaxConcurrency() RangeConfig {
-	if m.MaxConcurrency == nil {
+func (m *XmuxConfig) GetNormalizedCMaxRequestTimes() RangeConfig {
+	if m.HMaxRequestTimes == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
 
-	return *m.MaxConcurrency
-}
-
-func (m *XmuxConfig) GetNormalizedMaxConnections() RangeConfig {
-	if m.MaxConnections == nil {
-		return RangeConfig{
-			From: 0,
-			To:   0,
-		}
-	}
-
-	return *m.MaxConnections
+	return *m.HMaxRequestTimes
 }
 
 func (m *XmuxConfig) GetNormalizedCMaxReuseTimes() RangeConfig {
@@ -138,26 +127,36 @@ func (m *XmuxConfig) GetNormalizedCMaxReuseTimes() RangeConfig {
 	return *m.CMaxReuseTimes
 }
 
-func (m *XmuxConfig) GetNormalizedHMaxRequestTimes() RangeConfig {
-	if m.HMaxRequestTimes == nil {
+func (m *XmuxConfig) GetNormalizedCMaxLifetimeMs() RangeConfig {
+	if m.CMaxLifetimeMs == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
-
-	return *m.HMaxRequestTimes
+	return *m.CMaxLifetimeMs
 }
 
-func (m *XmuxConfig) GetNormalizedHMaxReusableSecs() RangeConfig {
-	if m.HMaxReusableSecs == nil {
+func (m *XmuxConfig) GetNormalizedMaxConnections() RangeConfig {
+	if m.MaxConnections == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
 
-	return *m.HMaxReusableSecs
+	return *m.MaxConnections
+}
+
+func (m *XmuxConfig) GetNormalizedMaxConcurrency() RangeConfig {
+	if m.MaxConcurrency == nil {
+		return RangeConfig{
+			From: 0,
+			To:   0,
+		}
+	}
+
+	return *m.MaxConcurrency
 }
 
 func init() {

transport/internet/splithttp/config.pb.go

@@ -82,8 +82,8 @@ type XmuxConfig struct {
 	MaxConcurrency   *RangeConfig `protobuf:"bytes,1,opt,name=maxConcurrency,proto3" json:"maxConcurrency,omitempty"`
 	MaxConnections   *RangeConfig `protobuf:"bytes,2,opt,name=maxConnections,proto3" json:"maxConnections,omitempty"`
 	CMaxReuseTimes   *RangeConfig `protobuf:"bytes,3,opt,name=cMaxReuseTimes,proto3" json:"cMaxReuseTimes,omitempty"`
-	HMaxRequestTimes *RangeConfig `protobuf:"bytes,4,opt,name=hMaxRequestTimes,proto3" json:"hMaxRequestTimes,omitempty"`
-	HMaxReusableSecs *RangeConfig `protobuf:"bytes,5,opt,name=hMaxReusableSecs,proto3" json:"hMaxReusableSecs,omitempty"`
+	CMaxLifetimeMs   *RangeConfig `protobuf:"bytes,4,opt,name=cMaxLifetimeMs,proto3" json:"cMaxLifetimeMs,omitempty"`
+	HMaxRequestTimes *RangeConfig `protobuf:"bytes,5,opt,name=hMaxRequestTimes,proto3" json:"hMaxRequestTimes,omitempty"`
 	HKeepAlivePeriod int64        `protobuf:"varint,6,opt,name=hKeepAlivePeriod,proto3" json:"hKeepAlivePeriod,omitempty"`
 }
 
@@ -138,16 +138,16 @@ func (x *XmuxConfig) GetCMaxReuseTimes() *RangeConfig {
 	return nil
 }
 
-func (x *XmuxConfig) GetHMaxRequestTimes() *RangeConfig {
+func (x *XmuxConfig) GetCMaxLifetimeMs() *RangeConfig {
 	if x != nil {
-		return x.HMaxRequestTimes
+		return x.CMaxLifetimeMs
 	}
 	return nil
 }
 
-func (x *XmuxConfig) GetHMaxReusableSecs() *RangeConfig {
+func (x *XmuxConfig) GetHMaxRequestTimes() *RangeConfig {
 	if x != nil {
-		return x.HMaxReusableSecs
+		return x.HMaxRequestTimes
 	}
 	return nil
 }
@@ -305,7 +305,7 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
 	0x31, 0x0a, 0x0b, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x12,
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@@ -322,78 +322,78 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
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+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -420,8 +420,8 @@ var file_transport_internet_splithttp_config_proto_depIdxs = []int32{
 	0,  // 0: xray.transport.internet.splithttp.XmuxConfig.maxConcurrency:type_name -> xray.transport.internet.splithttp.RangeConfig
 	0,  // 1: xray.transport.internet.splithttp.XmuxConfig.maxConnections:type_name -> xray.transport.internet.splithttp.RangeConfig
 	0,  // 2: xray.transport.internet.splithttp.XmuxConfig.cMaxReuseTimes:type_name -> xray.transport.internet.splithttp.RangeConfig
-	0,  // 3: xray.transport.internet.splithttp.XmuxConfig.hMaxRequestTimes:type_name -> xray.transport.internet.splithttp.RangeConfig
-	0,  // 4: xray.transport.internet.splithttp.XmuxConfig.hMaxReusableSecs:type_name -> xray.transport.internet.splithttp.RangeConfig
+	0,  // 3: xray.transport.internet.splithttp.XmuxConfig.cMaxLifetimeMs:type_name -> xray.transport.internet.splithttp.RangeConfig
+	0,  // 4: xray.transport.internet.splithttp.XmuxConfig.hMaxRequestTimes:type_name -> xray.transport.internet.splithttp.RangeConfig
 	3,  // 5: xray.transport.internet.splithttp.Config.headers:type_name -> xray.transport.internet.splithttp.Config.HeadersEntry
 	0,  // 6: xray.transport.internet.splithttp.Config.xPaddingBytes:type_name -> xray.transport.internet.splithttp.RangeConfig
 	0,  // 7: xray.transport.internet.splithttp.Config.scMaxEachPostBytes:type_name -> xray.transport.internet.splithttp.RangeConfig

transport/internet/splithttp/config.proto

@@ -17,8 +17,8 @@ message XmuxConfig {
   RangeConfig maxConcurrency = 1;
   RangeConfig maxConnections = 2;
   RangeConfig cMaxReuseTimes = 3;
-  RangeConfig hMaxRequestTimes = 4;
-  RangeConfig hMaxReusableSecs = 5;
+  RangeConfig cMaxLifetimeMs = 4;
+  RangeConfig hMaxRequestTimes = 5;
   int64 hKeepAlivePeriod = 6;
 }
 

transport/internet/splithttp/dialer.go

@@ -308,7 +308,7 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 		globalDialerAccess.Lock()
 		if streamSettings.DownloadSettings == nil {
 			streamSettings.DownloadSettings = common.Must2(internet.ToMemoryStreamConfig(transportConfiguration.DownloadSettings)).(*internet.MemoryStreamConfig)
-			if streamSettings.SocketSettings != nil && streamSettings.SocketSettings.Penetrate {
+			if streamSettings.DownloadSettings.SocketSettings == nil {
 				streamSettings.DownloadSettings.SocketSettings = streamSettings.SocketSettings
 			}
 		}
@@ -447,8 +447,7 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 
 			lastWrite = time.Now()
 
-			if xmuxClient != nil && (xmuxClient.LeftRequests.Add(-1) <= 0 ||
-				(xmuxClient.UnreusableAt != time.Time{} && lastWrite.After(xmuxClient.UnreusableAt))) {
+			if xmuxClient != nil && xmuxClient.LeftRequests.Add(-1) <= 0 {
 				httpClient, xmuxClient = getHTTPClient(ctx, dest, streamSettings)
 			}
 

transport/internet/splithttp/mux.go

@@ -19,8 +19,8 @@ type XmuxClient struct {
 	XmuxConn       XmuxConn
 	OpenUsage      atomic.Int32
 	leftUsage      int32
+	expirationTime time.Time
 	LeftRequests   atomic.Int32
-	UnreusableAt time.Time
 }
 
 type XmuxManager struct {
@@ -45,16 +45,17 @@ func (m *XmuxManager) newXmuxClient() *XmuxClient {
 	xmuxClient := &XmuxClient{
 		XmuxConn:       m.newConnFunc(),
 		leftUsage:      -1,
+		expirationTime: time.UnixMilli(0),
 	}
 	if x := m.xmuxConfig.GetNormalizedCMaxReuseTimes().rand(); x > 0 {
 		xmuxClient.leftUsage = x - 1
 	}
-	xmuxClient.LeftRequests.Store(math.MaxInt32)
-	if x := m.xmuxConfig.GetNormalizedHMaxRequestTimes().rand(); x > 0 {
-		xmuxClient.LeftRequests.Store(x)
+	if x := m.xmuxConfig.GetNormalizedCMaxLifetimeMs().rand(); x > 0 {
+		xmuxClient.expirationTime = time.Now().Add(time.Duration(x) * time.Millisecond)
 	}
-	if x := m.xmuxConfig.GetNormalizedHMaxReusableSecs().rand(); x > 0 {
-		xmuxClient.UnreusableAt = time.Now().Add(time.Duration(x) * time.Second)
+	xmuxClient.LeftRequests.Store(math.MaxInt32)
+	if x := m.xmuxConfig.GetNormalizedCMaxRequestTimes().rand(); x > 0 {
+		xmuxClient.LeftRequests.Store(x)
 	}
 	m.xmuxClients = append(m.xmuxClients, xmuxClient)
 	return xmuxClient
@@ -65,13 +66,13 @@ func (m *XmuxManager) GetXmuxClient(ctx context.Context) *XmuxClient { // when l
 		xmuxClient := m.xmuxClients[i]
 		if xmuxClient.XmuxConn.IsClosed() ||
 			xmuxClient.leftUsage == 0 ||
-			xmuxClient.LeftRequests.Load() <= 0 ||
-			(xmuxClient.UnreusableAt != time.Time{} && time.Now().After(xmuxClient.UnreusableAt)) {
+			(xmuxClient.expirationTime != time.UnixMilli(0) && time.Now().After(xmuxClient.expirationTime)) ||
+			xmuxClient.LeftRequests.Load() <= 0 {
 			errors.LogDebug(ctx, "XMUX: removing xmuxClient, IsClosed() = ", xmuxClient.XmuxConn.IsClosed(),
 				", OpenUsage = ", xmuxClient.OpenUsage.Load(),
 				", leftUsage = ", xmuxClient.leftUsage,
-				", LeftRequests = ", xmuxClient.LeftRequests.Load(),
-				", UnreusableAt = ", xmuxClient.UnreusableAt)
+				", expirationTime = ", xmuxClient.expirationTime,
+				", LeftRequests = ", xmuxClient.LeftRequests.Load())
 			m.xmuxClients = append(m.xmuxClients[:i], m.xmuxClients[i+1:]...)
 		} else {
 			i++