platform: Refactor CommandClient & Connections

daemon/started_service.go

@@ -56,6 +56,9 @@ type StartedService struct {
 	urlTestHistoryStorage   *urltest.HistoryStorage
 	clashModeSubscriber     *observable.Subscriber[struct{}]
 	clashModeObserver       *observable.Observer[struct{}]
+
+	connectionEventSubscriber *observable.Subscriber[trafficontrol.ConnectionEvent]
+	connectionEventObserver   *observable.Observer[trafficontrol.ConnectionEvent]
 }
 
 type ServiceOptions struct {
@@ -83,17 +86,19 @@ func NewStartedService(options ServiceOptions) *StartedService {
 		// userID:           options.UserID,
 		// groupID:          options.GroupID,
 		// systemProxyEnabled:      options.SystemProxyEnabled,
-		serviceStatus:           &ServiceStatus{Status: ServiceStatus_IDLE},
-		serviceStatusSubscriber: observable.NewSubscriber[*ServiceStatus](4),
-		logSubscriber:           observable.NewSubscriber[*log.Entry](128),
-		urlTestSubscriber:       observable.NewSubscriber[struct{}](1),
-		urlTestHistoryStorage:   urltest.NewHistoryStorage(),
-		clashModeSubscriber:     observable.NewSubscriber[struct{}](1),
+		serviceStatus:             &ServiceStatus{Status: ServiceStatus_IDLE},
+		serviceStatusSubscriber:   observable.NewSubscriber[*ServiceStatus](4),
+		logSubscriber:             observable.NewSubscriber[*log.Entry](128),
+		urlTestSubscriber:         observable.NewSubscriber[struct{}](1),
+		urlTestHistoryStorage:     urltest.NewHistoryStorage(),
+		clashModeSubscriber:       observable.NewSubscriber[struct{}](1),
+		connectionEventSubscriber: observable.NewSubscriber[trafficontrol.ConnectionEvent](256),
 	}
 	s.serviceStatusObserver = observable.NewObserver(s.serviceStatusSubscriber, 2)
 	s.logObserver = observable.NewObserver(s.logSubscriber, 64)
 	s.urlTestObserver = observable.NewObserver(s.urlTestSubscriber, 1)
 	s.clashModeObserver = observable.NewObserver(s.clashModeSubscriber, 1)
+	s.connectionEventObserver = observable.NewObserver(s.connectionEventSubscriber, 64)
 	return s
 }
 
@@ -183,6 +188,7 @@ func (s *StartedService) StartOrReloadService(profileContent string, options *Ov
 	instance.urlTestHistoryStorage.SetHook(s.urlTestSubscriber)
 	if instance.clashServer != nil {
 		instance.clashServer.SetModeUpdateHook(s.clashModeSubscriber)
+		instance.clashServer.(*clashapi.Server).TrafficManager().SetEventHook(s.connectionEventSubscriber)
 	}
 	s.serviceAccess.Unlock()
 	err = instance.Start()
@@ -666,7 +672,7 @@ func (s *StartedService) SetSystemProxyEnabled(ctx context.Context, request *Set
 	return nil, err
 }
 
-func (s *StartedService) SubscribeConnections(request *SubscribeConnectionsRequest, server grpc.ServerStreamingServer[Connections]) error {
+func (s *StartedService) SubscribeConnections(request *SubscribeConnectionsRequest, server grpc.ServerStreamingServer[ConnectionEvents]) error {
 	err := s.waitForStarted(server.Context())
 	if err != nil {
 		return err
@@ -674,69 +680,253 @@ func (s *StartedService) SubscribeConnections(request *SubscribeConnectionsReque
 	s.serviceAccess.RLock()
 	boxService := s.instance
 	s.serviceAccess.RUnlock()
-	ticker := time.NewTicker(time.Duration(request.Interval))
-	defer ticker.Stop()
+
+	if boxService.clashServer == nil {
+		return E.New("clash server not available")
+	}
+
 	trafficManager := boxService.clashServer.(*clashapi.Server).TrafficManager()
-	var (
-		connections    = make(map[uuid.UUID]*Connection)
-		outConnections []*Connection
-	)
+
+	subscription, done, err := s.connectionEventObserver.Subscribe()
+	if err != nil {
+		return err
+	}
+	defer s.connectionEventObserver.UnSubscribe(subscription)
+
+	connectionSnapshots := make(map[uuid.UUID]connectionSnapshot)
+	initialEvents := s.buildInitialConnectionState(trafficManager, connectionSnapshots)
+	err = server.Send(&ConnectionEvents{
+		Events: initialEvents,
+		Reset_: true,
+	})
+	if err != nil {
+		return err
+	}
+
+	interval := time.Duration(request.Interval)
+	if interval <= 0 {
+		interval = time.Second
+	}
+	ticker := time.NewTicker(interval)
+	defer ticker.Stop()
+
 	for {
-		outConnections = outConnections[:0]
-		for _, connection := range trafficManager.Connections() {
-			outConnections = append(outConnections, newConnection(connections, connection, false))
-		}
-		for _, connection := range trafficManager.ClosedConnections() {
-			outConnections = append(outConnections, newConnection(connections, connection, true))
-		}
-		err := server.Send(&Connections{Connections: outConnections})
-		if err != nil {
-			return err
-		}
 		select {
 		case <-s.ctx.Done():
 			return s.ctx.Err()
 		case <-server.Context().Done():
 			return server.Context().Err()
+		case <-done:
+			return nil
+
+		case event := <-subscription:
+			var pendingEvents []*ConnectionEvent
+			if protoEvent := s.applyConnectionEvent(event, connectionSnapshots); protoEvent != nil {
+				pendingEvents = append(pendingEvents, protoEvent)
+			}
+		drain:
+			for {
+				select {
+				case event = <-subscription:
+					if protoEvent := s.applyConnectionEvent(event, connectionSnapshots); protoEvent != nil {
+						pendingEvents = append(pendingEvents, protoEvent)
+					}
+				default:
+					break drain
+				}
+			}
+			if len(pendingEvents) > 0 {
+				err = server.Send(&ConnectionEvents{Events: pendingEvents})
+				if err != nil {
+					return err
+				}
+			}
+
 		case <-ticker.C:
+			protoEvents := s.buildTrafficUpdates(trafficManager, connectionSnapshots)
+			if len(protoEvents) == 0 {
+				continue
+			}
+			err = server.Send(&ConnectionEvents{Events: protoEvents})
+			if err != nil {
+				return err
+			}
+		}
+	}
+}
+
+type connectionSnapshot struct {
+	uplink     int64
+	downlink   int64
+	hadTraffic bool
+}
+
+func (s *StartedService) buildInitialConnectionState(manager *trafficontrol.Manager, snapshots map[uuid.UUID]connectionSnapshot) []*ConnectionEvent {
+	var events []*ConnectionEvent
+
+	for _, metadata := range manager.Connections() {
+		events = append(events, &ConnectionEvent{
+			Type:       ConnectionEventType_CONNECTION_EVENT_NEW,
+			Id:         metadata.ID.String(),
+			Connection: buildConnectionProto(metadata),
+		})
+		snapshots[metadata.ID] = connectionSnapshot{
+			uplink:   metadata.Upload.Load(),
+			downlink: metadata.Download.Load(),
 		}
 	}
+
+	for _, metadata := range manager.ClosedConnections() {
+		conn := buildConnectionProto(metadata)
+		conn.ClosedAt = metadata.ClosedAt.UnixMilli()
+		events = append(events, &ConnectionEvent{
+			Type:       ConnectionEventType_CONNECTION_EVENT_NEW,
+			Id:         metadata.ID.String(),
+			Connection: conn,
+		})
+	}
+
+	return events
 }
 
-func newConnection(connections map[uuid.UUID]*Connection, metadata trafficontrol.TrackerMetadata, isClosed bool) *Connection {
-	if oldConnection, loaded := connections[metadata.ID]; loaded {
-		if isClosed {
-			if oldConnection.ClosedAt == 0 {
-				oldConnection.Uplink = 0
-				oldConnection.Downlink = 0
-				oldConnection.ClosedAt = metadata.ClosedAt.UnixMilli()
+func (s *StartedService) applyConnectionEvent(event trafficontrol.ConnectionEvent, snapshots map[uuid.UUID]connectionSnapshot) *ConnectionEvent {
+	switch event.Type {
+	case trafficontrol.ConnectionEventNew:
+		if _, exists := snapshots[event.ID]; exists {
+			return nil
+		}
+		snapshots[event.ID] = connectionSnapshot{
+			uplink:   event.Metadata.Upload.Load(),
+			downlink: event.Metadata.Download.Load(),
+		}
+		return &ConnectionEvent{
+			Type:       ConnectionEventType_CONNECTION_EVENT_NEW,
+			Id:         event.ID.String(),
+			Connection: buildConnectionProto(event.Metadata),
+		}
+	case trafficontrol.ConnectionEventClosed:
+		delete(snapshots, event.ID)
+		protoEvent := &ConnectionEvent{
+			Type: ConnectionEventType_CONNECTION_EVENT_CLOSED,
+			Id:   event.ID.String(),
+		}
+		closedAt := event.ClosedAt
+		if closedAt.IsZero() && !event.Metadata.ClosedAt.IsZero() {
+			closedAt = event.Metadata.ClosedAt
+		}
+		if closedAt.IsZero() {
+			closedAt = time.Now()
+		}
+		protoEvent.ClosedAt = closedAt.UnixMilli()
+		if event.Metadata.ID != uuid.Nil {
+			conn := buildConnectionProto(event.Metadata)
+			conn.ClosedAt = protoEvent.ClosedAt
+			protoEvent.Connection = conn
+		}
+		return protoEvent
+	default:
+		return nil
+	}
+}
+
+func (s *StartedService) buildTrafficUpdates(manager *trafficontrol.Manager, snapshots map[uuid.UUID]connectionSnapshot) []*ConnectionEvent {
+	activeConnections := manager.Connections()
+	activeIndex := make(map[uuid.UUID]trafficontrol.TrackerMetadata, len(activeConnections))
+	var events []*ConnectionEvent
+
+	for _, metadata := range activeConnections {
+		activeIndex[metadata.ID] = metadata
+		currentUpload := metadata.Upload.Load()
+		currentDownload := metadata.Download.Load()
+		snapshot, exists := snapshots[metadata.ID]
+		if !exists {
+			snapshots[metadata.ID] = connectionSnapshot{
+				uplink:   currentUpload,
+				downlink: currentDownload,
 			}
-			return oldConnection
-		}
-		lastUplink := oldConnection.UplinkTotal
-		lastDownlink := oldConnection.DownlinkTotal
-		uplinkTotal := metadata.Upload.Load()
-		downlinkTotal := metadata.Download.Load()
-		oldConnection.Uplink = uplinkTotal - lastUplink
-		oldConnection.Downlink = downlinkTotal - lastDownlink
-		oldConnection.UplinkTotal = uplinkTotal
-		oldConnection.DownlinkTotal = downlinkTotal
-		return oldConnection
+			events = append(events, &ConnectionEvent{
+				Type:       ConnectionEventType_CONNECTION_EVENT_NEW,
+				Id:         metadata.ID.String(),
+				Connection: buildConnectionProto(metadata),
+			})
+			continue
+		}
+		uplinkDelta := currentUpload - snapshot.uplink
+		downlinkDelta := currentDownload - snapshot.downlink
+		if uplinkDelta < 0 || downlinkDelta < 0 {
+			snapshots[metadata.ID] = connectionSnapshot{
+				uplink:   currentUpload,
+				downlink: currentDownload,
+			}
+			continue
+		}
+		if uplinkDelta > 0 || downlinkDelta > 0 {
+			snapshots[metadata.ID] = connectionSnapshot{
+				uplink:     currentUpload,
+				downlink:   currentDownload,
+				hadTraffic: true,
+			}
+			events = append(events, &ConnectionEvent{
+				Type:          ConnectionEventType_CONNECTION_EVENT_UPDATE,
+				Id:            metadata.ID.String(),
+				UplinkDelta:   uplinkDelta,
+				DownlinkDelta: downlinkDelta,
+			})
+			continue
+		}
+		if snapshot.hadTraffic {
+			snapshots[metadata.ID] = connectionSnapshot{
+				uplink:   currentUpload,
+				downlink: currentDownload,
+			}
+			events = append(events, &ConnectionEvent{
+				Type:          ConnectionEventType_CONNECTION_EVENT_UPDATE,
+				Id:            metadata.ID.String(),
+				UplinkDelta:   0,
+				DownlinkDelta: 0,
+			})
+		}
+	}
+
+	var closedIndex map[uuid.UUID]trafficontrol.TrackerMetadata
+	for id := range snapshots {
+		if _, exists := activeIndex[id]; exists {
+			continue
+		}
+		if closedIndex == nil {
+			closedIndex = make(map[uuid.UUID]trafficontrol.TrackerMetadata)
+			for _, metadata := range manager.ClosedConnections() {
+				closedIndex[metadata.ID] = metadata
+			}
+		}
+		closedAt := time.Now()
+		var conn *Connection
+		if metadata, ok := closedIndex[id]; ok {
+			if !metadata.ClosedAt.IsZero() {
+				closedAt = metadata.ClosedAt
+			}
+			conn = buildConnectionProto(metadata)
+			conn.ClosedAt = closedAt.UnixMilli()
+		}
+		events = append(events, &ConnectionEvent{
+			Type:       ConnectionEventType_CONNECTION_EVENT_CLOSED,
+			Id:         id.String(),
+			ClosedAt:   closedAt.UnixMilli(),
+			Connection: conn,
+		})
+		delete(snapshots, id)
 	}
+
+	return events
+}
+
+func buildConnectionProto(metadata trafficontrol.TrackerMetadata) *Connection {
 	var rule string
 	if metadata.Rule != nil {
 		rule = metadata.Rule.String()
 	}
 	uplinkTotal := metadata.Upload.Load()
 	downlinkTotal := metadata.Download.Load()
-	uplink := uplinkTotal
-	downlink := downlinkTotal
-	var closedAt int64
-	if !metadata.ClosedAt.IsZero() {
-		closedAt = metadata.ClosedAt.UnixMilli()
-		uplink = 0
-		downlink = 0
-	}
 	var processInfo *ProcessInfo
 	if metadata.Metadata.ProcessInfo != nil {
 		processInfo = &ProcessInfo{
@@ -747,7 +937,7 @@ func newConnection(connections map[uuid.UUID]*Connection, metadata trafficontrol
 			PackageName: metadata.Metadata.ProcessInfo.AndroidPackageName,
 		}
 	}
-	connection := &Connection{
+	return &Connection{
 		Id:            metadata.ID.String(),
 		Inbound:       metadata.Metadata.Inbound,
 		InboundType:   metadata.Metadata.InboundType,
@@ -760,9 +950,6 @@ func newConnection(connections map[uuid.UUID]*Connection, metadata trafficontrol
 		User:          metadata.Metadata.User,
 		FromOutbound:  metadata.Metadata.Outbound,
 		CreatedAt:     metadata.CreatedAt.UnixMilli(),
-		ClosedAt:      closedAt,
-		Uplink:        uplink,
-		Downlink:      downlink,
 		UplinkTotal:   uplinkTotal,
 		DownlinkTotal: downlinkTotal,
 		Rule:          rule,
@@ -771,8 +958,6 @@ func newConnection(connections map[uuid.UUID]*Connection, metadata trafficontrol
 		ChainList:     metadata.Chain,
 		ProcessInfo:   processInfo,
 	}
-	connections[metadata.ID] = connection
-	return connection
 }
 
 func (s *StartedService) CloseConnection(ctx context.Context, request *CloseConnectionRequest) (*emptypb.Empty, error) {

daemon/started_service.pb.go

@@ -78,104 +78,55 @@ func (LogLevel) EnumDescriptor() ([]byte, []int) {
 	return file_daemon_started_service_proto_rawDescGZIP(), []int{0}
 }
 
-type ConnectionFilter int32
+type ConnectionEventType int32
 
 const (
-	ConnectionFilter_ALL    ConnectionFilter = 0
-	ConnectionFilter_ACTIVE ConnectionFilter = 1
-	ConnectionFilter_CLOSED ConnectionFilter = 2
+	ConnectionEventType_CONNECTION_EVENT_NEW    ConnectionEventType = 0
+	ConnectionEventType_CONNECTION_EVENT_UPDATE ConnectionEventType = 1
+	ConnectionEventType_CONNECTION_EVENT_CLOSED ConnectionEventType = 2
 )
 
-// Enum value maps for ConnectionFilter.
+// Enum value maps for ConnectionEventType.
 var (
-	ConnectionFilter_name = map[int32]string{
-		0: "ALL",
-		1: "ACTIVE",
-		2: "CLOSED",
+	ConnectionEventType_name = map[int32]string{
+		0: "CONNECTION_EVENT_NEW",
+		1: "CONNECTION_EVENT_UPDATE",
+		2: "CONNECTION_EVENT_CLOSED",
 	}
-	ConnectionFilter_value = map[string]int32{
-		"ALL":    0,
-		"ACTIVE": 1,
-		"CLOSED": 2,
+	ConnectionEventType_value = map[string]int32{
+		"CONNECTION_EVENT_NEW":    0,
+		"CONNECTION_EVENT_UPDATE": 1,
+		"CONNECTION_EVENT_CLOSED": 2,
 	}
 )
 
-func (x ConnectionFilter) Enum() *ConnectionFilter {
-	p := new(ConnectionFilter)
+func (x ConnectionEventType) Enum() *ConnectionEventType {
+	p := new(ConnectionEventType)
 	*p = x
 	return p
 }
 
-func (x ConnectionFilter) String() string {
+func (x ConnectionEventType) String() string {
 	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
 }
 
-func (ConnectionFilter) Descriptor() protoreflect.EnumDescriptor {
+func (ConnectionEventType) Descriptor() protoreflect.EnumDescriptor {
 	return file_daemon_started_service_proto_enumTypes[1].Descriptor()
 }
 
-func (ConnectionFilter) Type() protoreflect.EnumType {
+func (ConnectionEventType) Type() protoreflect.EnumType {
 	return &file_daemon_started_service_proto_enumTypes[1]
 }
 
-func (x ConnectionFilter) Number() protoreflect.EnumNumber {
+func (x ConnectionEventType) Number() protoreflect.EnumNumber {
 	return protoreflect.EnumNumber(x)
 }
 
-// Deprecated: Use ConnectionFilter.Descriptor instead.
-func (ConnectionFilter) EnumDescriptor() ([]byte, []int) {
+// Deprecated: Use ConnectionEventType.Descriptor instead.
+func (ConnectionEventType) EnumDescriptor() ([]byte, []int) {
 	return file_daemon_started_service_proto_rawDescGZIP(), []int{1}
 }
 
-type ConnectionSortBy int32
-
-const (
-	ConnectionSortBy_DATE          ConnectionSortBy = 0
-	ConnectionSortBy_TRAFFIC       ConnectionSortBy = 1
-	ConnectionSortBy_TOTAL_TRAFFIC ConnectionSortBy = 2
-)
-
-// Enum value maps for ConnectionSortBy.
-var (
-	ConnectionSortBy_name = map[int32]string{
-		0: "DATE",
-		1: "TRAFFIC",
-		2: "TOTAL_TRAFFIC",
-	}
-	ConnectionSortBy_value = map[string]int32{
-		"DATE":          0,
-		"TRAFFIC":       1,
-		"TOTAL_TRAFFIC": 2,
-	}
-)
-
-func (x ConnectionSortBy) Enum() *ConnectionSortBy {
-	p := new(ConnectionSortBy)
-	*p = x
-	return p
-}
-
-func (x ConnectionSortBy) String() string {
-	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
-}
-
-func (ConnectionSortBy) Descriptor() protoreflect.EnumDescriptor {
-	return file_daemon_started_service_proto_enumTypes[2].Descriptor()
-}
-
-func (ConnectionSortBy) Type() protoreflect.EnumType {
-	return &file_daemon_started_service_proto_enumTypes[2]
-}
-
-func (x ConnectionSortBy) Number() protoreflect.EnumNumber {
-	return protoreflect.EnumNumber(x)
-}
-
-// Deprecated: Use ConnectionSortBy.Descriptor instead.
-func (ConnectionSortBy) EnumDescriptor() ([]byte, []int) {
-	return file_daemon_started_service_proto_rawDescGZIP(), []int{2}
-}
-
 type ServiceStatus_Type int32
 
 const (
@@ -215,11 +166,11 @@ func (x ServiceStatus_Type) String() string {
 }
 
 func (ServiceStatus_Type) Descriptor() protoreflect.EnumDescriptor {
-	return file_daemon_started_service_proto_enumTypes[3].Descriptor()
+	return file_daemon_started_service_proto_enumTypes[2].Descriptor()
 }
 
 func (ServiceStatus_Type) Type() protoreflect.EnumType {
-	return &file_daemon_started_service_proto_enumTypes[3]
+	return &file_daemon_started_service_proto_enumTypes[2]
 }
 
 func (x ServiceStatus_Type) Number() protoreflect.EnumNumber {
@@ -1114,8 +1065,6 @@ func (x *SetSystemProxyEnabledRequest) GetEnabled() bool {
 type SubscribeConnectionsRequest struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	Interval      int64                  `protobuf:"varint,1,opt,name=interval,proto3" json:"interval,omitempty"`
-	Filter        ConnectionFilter       `protobuf:"varint,2,opt,name=filter,proto3,enum=daemon.ConnectionFilter" json:"filter,omitempty"`
-	SortBy        ConnectionSortBy       `protobuf:"varint,3,opt,name=sortBy,proto3,enum=daemon.ConnectionSortBy" json:"sortBy,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@@ -1157,42 +1106,113 @@ func (x *SubscribeConnectionsRequest) GetInterval() int64 {
 	return 0
 }
 
-func (x *SubscribeConnectionsRequest) GetFilter() ConnectionFilter {
+type ConnectionEvent struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Type          ConnectionEventType    `protobuf:"varint,1,opt,name=type,proto3,enum=daemon.ConnectionEventType" json:"type,omitempty"`
+	Id            string                 `protobuf:"bytes,2,opt,name=id,proto3" json:"id,omitempty"`
+	Connection    *Connection            `protobuf:"bytes,3,opt,name=connection,proto3" json:"connection,omitempty"`
+	UplinkDelta   int64                  `protobuf:"varint,4,opt,name=uplinkDelta,proto3" json:"uplinkDelta,omitempty"`
+	DownlinkDelta int64                  `protobuf:"varint,5,opt,name=downlinkDelta,proto3" json:"downlinkDelta,omitempty"`
+	ClosedAt      int64                  `protobuf:"varint,6,opt,name=closedAt,proto3" json:"closedAt,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ConnectionEvent) Reset() {
+	*x = ConnectionEvent{}
+	mi := &file_daemon_started_service_proto_msgTypes[17]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ConnectionEvent) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ConnectionEvent) ProtoMessage() {}
+
+func (x *ConnectionEvent) ProtoReflect() protoreflect.Message {
+	mi := &file_daemon_started_service_proto_msgTypes[17]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ConnectionEvent.ProtoReflect.Descriptor instead.
+func (*ConnectionEvent) Descriptor() ([]byte, []int) {
+	return file_daemon_started_service_proto_rawDescGZIP(), []int{17}
+}
+
+func (x *ConnectionEvent) GetType() ConnectionEventType {
 	if x != nil {
-		return x.Filter
+		return x.Type
 	}
-	return ConnectionFilter_ALL
+	return ConnectionEventType_CONNECTION_EVENT_NEW
 }
 
-func (x *SubscribeConnectionsRequest) GetSortBy() ConnectionSortBy {
+func (x *ConnectionEvent) GetId() string {
 	if x != nil {
-		return x.SortBy
+		return x.Id
 	}
-	return ConnectionSortBy_DATE
+	return ""
+}
+
+func (x *ConnectionEvent) GetConnection() *Connection {
+	if x != nil {
+		return x.Connection
+	}
+	return nil
 }
 
-type Connections struct {
+func (x *ConnectionEvent) GetUplinkDelta() int64 {
+	if x != nil {
+		return x.UplinkDelta
+	}
+	return 0
+}
+
+func (x *ConnectionEvent) GetDownlinkDelta() int64 {
+	if x != nil {
+		return x.DownlinkDelta
+	}
+	return 0
+}
+
+func (x *ConnectionEvent) GetClosedAt() int64 {
+	if x != nil {
+		return x.ClosedAt
+	}
+	return 0
+}
+
+type ConnectionEvents struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
-	Connections   []*Connection          `protobuf:"bytes,1,rep,name=connections,proto3" json:"connections,omitempty"`
+	Events        []*ConnectionEvent     `protobuf:"bytes,1,rep,name=events,proto3" json:"events,omitempty"`
+	Reset_        bool                   `protobuf:"varint,2,opt,name=reset,proto3" json:"reset,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
 
-func (x *Connections) Reset() {
-	*x = Connections{}
-	mi := &file_daemon_started_service_proto_msgTypes[17]
+func (x *ConnectionEvents) Reset() {
+	*x = ConnectionEvents{}
+	mi := &file_daemon_started_service_proto_msgTypes[18]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
 
-func (x *Connections) String() string {
+func (x *ConnectionEvents) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*Connections) ProtoMessage() {}
+func (*ConnectionEvents) ProtoMessage() {}
 
-func (x *Connections) ProtoReflect() protoreflect.Message {
-	mi := &file_daemon_started_service_proto_msgTypes[17]
+func (x *ConnectionEvents) ProtoReflect() protoreflect.Message {
+	mi := &file_daemon_started_service_proto_msgTypes[18]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1203,18 +1223,25 @@ func (x *Connections) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use Connections.ProtoReflect.Descriptor instead.
-func (*Connections) Descriptor() ([]byte, []int) {
-	return file_daemon_started_service_proto_rawDescGZIP(), []int{17}
+// Deprecated: Use ConnectionEvents.ProtoReflect.Descriptor instead.
+func (*ConnectionEvents) Descriptor() ([]byte, []int) {
+	return file_daemon_started_service_proto_rawDescGZIP(), []int{18}
 }
 
-func (x *Connections) GetConnections() []*Connection {
+func (x *ConnectionEvents) GetEvents() []*ConnectionEvent {
 	if x != nil {
-		return x.Connections
+		return x.Events
 	}
 	return nil
 }
 
+func (x *ConnectionEvents) GetReset_() bool {
+	if x != nil {
+		return x.Reset_
+	}
+	return false
+}
+
 type Connection struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	Id            string                 `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
@@ -1245,7 +1272,7 @@ type Connection struct {
 
 func (x *Connection) Reset() {
 	*x = Connection{}
-	mi := &file_daemon_started_service_proto_msgTypes[18]
+	mi := &file_daemon_started_service_proto_msgTypes[19]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1257,7 +1284,7 @@ func (x *Connection) String() string {
 func (*Connection) ProtoMessage() {}
 
 func (x *Connection) ProtoReflect() protoreflect.Message {
-	mi := &file_daemon_started_service_proto_msgTypes[18]
+	mi := &file_daemon_started_service_proto_msgTypes[19]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1270,7 +1297,7 @@ func (x *Connection) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Connection.ProtoReflect.Descriptor instead.
 func (*Connection) Descriptor() ([]byte, []int) {
-	return file_daemon_started_service_proto_rawDescGZIP(), []int{18}
+	return file_daemon_started_service_proto_rawDescGZIP(), []int{19}
 }
 
 func (x *Connection) GetId() string {
@@ -1440,7 +1467,7 @@ type ProcessInfo struct {
 
 func (x *ProcessInfo) Reset() {
 	*x = ProcessInfo{}
-	mi := &file_daemon_started_service_proto_msgTypes[19]
+	mi := &file_daemon_started_service_proto_msgTypes[20]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1452,7 +1479,7 @@ func (x *ProcessInfo) String() string {
 func (*ProcessInfo) ProtoMessage() {}
 
 func (x *ProcessInfo) ProtoReflect() protoreflect.Message {
-	mi := &file_daemon_started_service_proto_msgTypes[19]
+	mi := &file_daemon_started_service_proto_msgTypes[20]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1465,7 +1492,7 @@ func (x *ProcessInfo) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ProcessInfo.ProtoReflect.Descriptor instead.
 func (*ProcessInfo) Descriptor() ([]byte, []int) {
-	return file_daemon_started_service_proto_rawDescGZIP(), []int{19}
+	return file_daemon_started_service_proto_rawDescGZIP(), []int{20}
 }
 
 func (x *ProcessInfo) GetProcessId() uint32 {
@@ -1512,7 +1539,7 @@ type CloseConnectionRequest struct {
 
 func (x *CloseConnectionRequest) Reset() {
 	*x = CloseConnectionRequest{}
-	mi := &file_daemon_started_service_proto_msgTypes[20]
+	mi := &file_daemon_started_service_proto_msgTypes[21]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1524,7 +1551,7 @@ func (x *CloseConnectionRequest) String() string {
 func (*CloseConnectionRequest) ProtoMessage() {}
 
 func (x *CloseConnectionRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_daemon_started_service_proto_msgTypes[20]
+	mi := &file_daemon_started_service_proto_msgTypes[21]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1537,7 +1564,7 @@ func (x *CloseConnectionRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CloseConnectionRequest.ProtoReflect.Descriptor instead.
 func (*CloseConnectionRequest) Descriptor() ([]byte, []int) {
-	return file_daemon_started_service_proto_rawDescGZIP(), []int{20}
+	return file_daemon_started_service_proto_rawDescGZIP(), []int{21}
 }
 
 func (x *CloseConnectionRequest) GetId() string {
@@ -1556,7 +1583,7 @@ type DeprecatedWarnings struct {
 
 func (x *DeprecatedWarnings) Reset() {
 	*x = DeprecatedWarnings{}
-	mi := &file_daemon_started_service_proto_msgTypes[21]
+	mi := &file_daemon_started_service_proto_msgTypes[22]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1568,7 +1595,7 @@ func (x *DeprecatedWarnings) String() string {
 func (*DeprecatedWarnings) ProtoMessage() {}
 
 func (x *DeprecatedWarnings) ProtoReflect() protoreflect.Message {
-	mi := &file_daemon_started_service_proto_msgTypes[21]
+	mi := &file_daemon_started_service_proto_msgTypes[22]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1581,7 +1608,7 @@ func (x *DeprecatedWarnings) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DeprecatedWarnings.ProtoReflect.Descriptor instead.
 func (*DeprecatedWarnings) Descriptor() ([]byte, []int) {
-	return file_daemon_started_service_proto_rawDescGZIP(), []int{21}
+	return file_daemon_started_service_proto_rawDescGZIP(), []int{22}
 }
 
 func (x *DeprecatedWarnings) GetWarnings() []*DeprecatedWarning {
@@ -1602,7 +1629,7 @@ type DeprecatedWarning struct {
 
 func (x *DeprecatedWarning) Reset() {
 	*x = DeprecatedWarning{}
-	mi := &file_daemon_started_service_proto_msgTypes[22]
+	mi := &file_daemon_started_service_proto_msgTypes[23]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1614,7 +1641,7 @@ func (x *DeprecatedWarning) String() string {
 func (*DeprecatedWarning) ProtoMessage() {}
 
 func (x *DeprecatedWarning) ProtoReflect() protoreflect.Message {
-	mi := &file_daemon_started_service_proto_msgTypes[22]
+	mi := &file_daemon_started_service_proto_msgTypes[23]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1627,7 +1654,7 @@ func (x *DeprecatedWarning) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DeprecatedWarning.ProtoReflect.Descriptor instead.
 func (*DeprecatedWarning) Descriptor() ([]byte, []int) {
-	return file_daemon_started_service_proto_rawDescGZIP(), []int{22}
+	return file_daemon_started_service_proto_rawDescGZIP(), []int{23}
 }
 
 func (x *DeprecatedWarning) GetMessage() string {
@@ -1660,7 +1687,7 @@ type StartedAt struct {
 
 func (x *StartedAt) Reset() {
 	*x = StartedAt{}
-	mi := &file_daemon_started_service_proto_msgTypes[23]
+	mi := &file_daemon_started_service_proto_msgTypes[24]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1672,7 +1699,7 @@ func (x *StartedAt) String() string {
 func (*StartedAt) ProtoMessage() {}
 
 func (x *StartedAt) ProtoReflect() protoreflect.Message {
-	mi := &file_daemon_started_service_proto_msgTypes[23]
+	mi := &file_daemon_started_service_proto_msgTypes[24]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1685,7 +1712,7 @@ func (x *StartedAt) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use StartedAt.ProtoReflect.Descriptor instead.
 func (*StartedAt) Descriptor() ([]byte, []int) {
-	return file_daemon_started_service_proto_rawDescGZIP(), []int{23}
+	return file_daemon_started_service_proto_rawDescGZIP(), []int{24}
 }
 
 func (x *StartedAt) GetStartedAt() int64 {
@@ -1705,7 +1732,7 @@ type Log_Message struct {
 
 func (x *Log_Message) Reset() {
 	*x = Log_Message{}
-	mi := &file_daemon_started_service_proto_msgTypes[24]
+	mi := &file_daemon_started_service_proto_msgTypes[25]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1717,7 +1744,7 @@ func (x *Log_Message) String() string {
 func (*Log_Message) ProtoMessage() {}
 
 func (x *Log_Message) ProtoReflect() protoreflect.Message {
-	mi := &file_daemon_started_service_proto_msgTypes[24]
+	mi := &file_daemon_started_service_proto_msgTypes[25]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1818,13 +1845,21 @@ const file_daemon_started_service_proto_rawDesc = "" +
 	"\tavailable\x18\x01 \x01(\bR\tavailable\x12\x18\n" +
 	"\aenabled\x18\x02 \x01(\bR\aenabled\"8\n" +
 	"\x1cSetSystemProxyEnabledRequest\x12\x18\n" +
-	"\aenabled\x18\x01 \x01(\bR\aenabled\"\x9d\x01\n" +
+	"\aenabled\x18\x01 \x01(\bR\aenabled\"9\n" +
 	"\x1bSubscribeConnectionsRequest\x12\x1a\n" +
-	"\binterval\x18\x01 \x01(\x03R\binterval\x120\n" +
-	"\x06filter\x18\x02 \x01(\x0e2\x18.daemon.ConnectionFilterR\x06filter\x120\n" +
-	"\x06sortBy\x18\x03 \x01(\x0e2\x18.daemon.ConnectionSortByR\x06sortBy\"C\n" +
-	"\vConnections\x124\n" +
-	"\vconnections\x18\x01 \x03(\v2\x12.daemon.ConnectionR\vconnections\"\x95\x05\n" +
+	"\binterval\x18\x01 \x01(\x03R\binterval\"\xea\x01\n" +
+	"\x0fConnectionEvent\x12/\n" +
+	"\x04type\x18\x01 \x01(\x0e2\x1b.daemon.ConnectionEventTypeR\x04type\x12\x0e\n" +
+	"\x02id\x18\x02 \x01(\tR\x02id\x122\n" +
+	"\n" +
+	"connection\x18\x03 \x01(\v2\x12.daemon.ConnectionR\n" +
+	"connection\x12 \n" +
+	"\vuplinkDelta\x18\x04 \x01(\x03R\vuplinkDelta\x12$\n" +
+	"\rdownlinkDelta\x18\x05 \x01(\x03R\rdownlinkDelta\x12\x1a\n" +
+	"\bclosedAt\x18\x06 \x01(\x03R\bclosedAt\"Y\n" +
+	"\x10ConnectionEvents\x12/\n" +
+	"\x06events\x18\x01 \x03(\v2\x17.daemon.ConnectionEventR\x06events\x12\x14\n" +
+	"\x05reset\x18\x02 \x01(\bR\x05reset\"\x95\x05\n" +
 	"\n" +
 	"Connection\x12\x0e\n" +
 	"\x02id\x18\x01 \x01(\tR\x02id\x12\x18\n" +
@@ -1873,17 +1908,11 @@ const file_daemon_started_service_proto_rawDesc = "" +
 	"\x04WARN\x10\x03\x12\b\n" +
 	"\x04INFO\x10\x04\x12\t\n" +
 	"\x05DEBUG\x10\x05\x12\t\n" +
-	"\x05TRACE\x10\x06*3\n" +
-	"\x10ConnectionFilter\x12\a\n" +
-	"\x03ALL\x10\x00\x12\n" +
-	"\n" +
-	"\x06ACTIVE\x10\x01\x12\n" +
-	"\n" +
-	"\x06CLOSED\x10\x02*<\n" +
-	"\x10ConnectionSortBy\x12\b\n" +
-	"\x04DATE\x10\x00\x12\v\n" +
-	"\aTRAFFIC\x10\x01\x12\x11\n" +
-	"\rTOTAL_TRAFFIC\x10\x022\xe0\v\n" +
+	"\x05TRACE\x10\x06*i\n" +
+	"\x13ConnectionEventType\x12\x18\n" +
+	"\x14CONNECTION_EVENT_NEW\x10\x00\x12\x1b\n" +
+	"\x17CONNECTION_EVENT_UPDATE\x10\x01\x12\x1b\n" +
+	"\x17CONNECTION_EVENT_CLOSED\x10\x022\xe5\v\n" +
 	"\x0eStartedService\x12=\n" +
 	"\vStopService\x12\x16.google.protobuf.Empty\x1a\x16.google.protobuf.Empty\x12?\n" +
 	"\rReloadService\x12\x16.google.protobuf.Empty\x1a\x16.google.protobuf.Empty\x12K\n" +
@@ -1900,8 +1929,8 @@ const file_daemon_started_service_proto_rawDesc = "" +
 	"\x0eSelectOutbound\x12\x1d.daemon.SelectOutboundRequest\x1a\x16.google.protobuf.Empty\"\x00\x12I\n" +
 	"\x0eSetGroupExpand\x12\x1d.daemon.SetGroupExpandRequest\x1a\x16.google.protobuf.Empty\"\x00\x12K\n" +
 	"\x14GetSystemProxyStatus\x12\x16.google.protobuf.Empty\x1a\x19.daemon.SystemProxyStatus\"\x00\x12W\n" +
-	"\x15SetSystemProxyEnabled\x12$.daemon.SetSystemProxyEnabledRequest\x1a\x16.google.protobuf.Empty\"\x00\x12T\n" +
-	"\x14SubscribeConnections\x12#.daemon.SubscribeConnectionsRequest\x1a\x13.daemon.Connections\"\x000\x01\x12K\n" +
+	"\x15SetSystemProxyEnabled\x12$.daemon.SetSystemProxyEnabledRequest\x1a\x16.google.protobuf.Empty\"\x00\x12Y\n" +
+	"\x14SubscribeConnections\x12#.daemon.SubscribeConnectionsRequest\x1a\x18.daemon.ConnectionEvents\"\x000\x01\x12K\n" +
 	"\x0fCloseConnection\x12\x1e.daemon.CloseConnectionRequest\x1a\x16.google.protobuf.Empty\"\x00\x12G\n" +
 	"\x13CloseAllConnections\x12\x16.google.protobuf.Empty\x1a\x16.google.protobuf.Empty\"\x00\x12M\n" +
 	"\x15GetDeprecatedWarnings\x12\x16.google.protobuf.Empty\x1a\x1a.daemon.DeprecatedWarnings\"\x00\x12;\n" +
@@ -1920,31 +1949,31 @@ func file_daemon_started_service_proto_rawDescGZIP() []byte {
 }
 
 var (
-	file_daemon_started_service_proto_enumTypes = make([]protoimpl.EnumInfo, 4)
-	file_daemon_started_service_proto_msgTypes  = make([]protoimpl.MessageInfo, 25)
+	file_daemon_started_service_proto_enumTypes = make([]protoimpl.EnumInfo, 3)
+	file_daemon_started_service_proto_msgTypes  = make([]protoimpl.MessageInfo, 26)
 	file_daemon_started_service_proto_goTypes   = []any{
 		(LogLevel)(0),                        // 0: daemon.LogLevel
-		(ConnectionFilter)(0),                // 1: daemon.ConnectionFilter
-		(ConnectionSortBy)(0),                // 2: daemon.ConnectionSortBy
-		(ServiceStatus_Type)(0),              // 3: daemon.ServiceStatus.Type
-		(*ServiceStatus)(nil),                // 4: daemon.ServiceStatus
-		(*ReloadServiceRequest)(nil),         // 5: daemon.ReloadServiceRequest
-		(*SubscribeStatusRequest)(nil),       // 6: daemon.SubscribeStatusRequest
-		(*Log)(nil),                          // 7: daemon.Log
-		(*DefaultLogLevel)(nil),              // 8: daemon.DefaultLogLevel
-		(*Status)(nil),                       // 9: daemon.Status
-		(*Groups)(nil),                       // 10: daemon.Groups
-		(*Group)(nil),                        // 11: daemon.Group
-		(*GroupItem)(nil),                    // 12: daemon.GroupItem
-		(*URLTestRequest)(nil),               // 13: daemon.URLTestRequest
-		(*SelectOutboundRequest)(nil),        // 14: daemon.SelectOutboundRequest
-		(*SetGroupExpandRequest)(nil),        // 15: daemon.SetGroupExpandRequest
-		(*ClashMode)(nil),                    // 16: daemon.ClashMode
-		(*ClashModeStatus)(nil),              // 17: daemon.ClashModeStatus
-		(*SystemProxyStatus)(nil),            // 18: daemon.SystemProxyStatus
-		(*SetSystemProxyEnabledRequest)(nil), // 19: daemon.SetSystemProxyEnabledRequest
-		(*SubscribeConnectionsRequest)(nil),  // 20: daemon.SubscribeConnectionsRequest
-		(*Connections)(nil),                  // 21: daemon.Connections
+		(ConnectionEventType)(0),             // 1: daemon.ConnectionEventType
+		(ServiceStatus_Type)(0),              // 2: daemon.ServiceStatus.Type
+		(*ServiceStatus)(nil),                // 3: daemon.ServiceStatus
+		(*ReloadServiceRequest)(nil),         // 4: daemon.ReloadServiceRequest
+		(*SubscribeStatusRequest)(nil),       // 5: daemon.SubscribeStatusRequest
+		(*Log)(nil),                          // 6: daemon.Log
+		(*DefaultLogLevel)(nil),              // 7: daemon.DefaultLogLevel
+		(*Status)(nil),                       // 8: daemon.Status
+		(*Groups)(nil),                       // 9: daemon.Groups
+		(*Group)(nil),                        // 10: daemon.Group
+		(*GroupItem)(nil),                    // 11: daemon.GroupItem
+		(*URLTestRequest)(nil),               // 12: daemon.URLTestRequest
+		(*SelectOutboundRequest)(nil),        // 13: daemon.SelectOutboundRequest
+		(*SetGroupExpandRequest)(nil),        // 14: daemon.SetGroupExpandRequest
+		(*ClashMode)(nil),                    // 15: daemon.ClashMode
+		(*ClashModeStatus)(nil),              // 16: daemon.ClashModeStatus
+		(*SystemProxyStatus)(nil),            // 17: daemon.SystemProxyStatus
+		(*SetSystemProxyEnabledRequest)(nil), // 18: daemon.SetSystemProxyEnabledRequest
+		(*SubscribeConnectionsRequest)(nil),  // 19: daemon.SubscribeConnectionsRequest
+		(*ConnectionEvent)(nil),              // 20: daemon.ConnectionEvent
+		(*ConnectionEvents)(nil),             // 21: daemon.ConnectionEvents
 		(*Connection)(nil),                   // 22: daemon.Connection
 		(*ProcessInfo)(nil),                  // 23: daemon.ProcessInfo
 		(*CloseConnectionRequest)(nil),       // 24: daemon.CloseConnectionRequest
@@ -1957,14 +1986,14 @@ var (
 )
 
 var file_daemon_started_service_proto_depIdxs = []int32{
-	3,  // 0: daemon.ServiceStatus.status:type_name -> daemon.ServiceStatus.Type
+	2,  // 0: daemon.ServiceStatus.status:type_name -> daemon.ServiceStatus.Type
 	28, // 1: daemon.Log.messages:type_name -> daemon.Log.Message
 	0,  // 2: daemon.DefaultLogLevel.level:type_name -> daemon.LogLevel
-	11, // 3: daemon.Groups.group:type_name -> daemon.Group
-	12, // 4: daemon.Group.items:type_name -> daemon.GroupItem
-	1,  // 5: daemon.SubscribeConnectionsRequest.filter:type_name -> daemon.ConnectionFilter
-	2,  // 6: daemon.SubscribeConnectionsRequest.sortBy:type_name -> daemon.ConnectionSortBy
-	22, // 7: daemon.Connections.connections:type_name -> daemon.Connection
+	10, // 3: daemon.Groups.group:type_name -> daemon.Group
+	11, // 4: daemon.Group.items:type_name -> daemon.GroupItem
+	1,  // 5: daemon.ConnectionEvent.type:type_name -> daemon.ConnectionEventType
+	22, // 6: daemon.ConnectionEvent.connection:type_name -> daemon.Connection
+	20, // 7: daemon.ConnectionEvents.events:type_name -> daemon.ConnectionEvent
 	23, // 8: daemon.Connection.processInfo:type_name -> daemon.ProcessInfo
 	26, // 9: daemon.DeprecatedWarnings.warnings:type_name -> daemon.DeprecatedWarning
 	0,  // 10: daemon.Log.Message.level:type_name -> daemon.LogLevel
@@ -1974,38 +2003,38 @@ var file_daemon_started_service_proto_depIdxs = []int32{
 	29, // 14: daemon.StartedService.SubscribeLog:input_type -> google.protobuf.Empty
 	29, // 15: daemon.StartedService.GetDefaultLogLevel:input_type -> google.protobuf.Empty
 	29, // 16: daemon.StartedService.ClearLogs:input_type -> google.protobuf.Empty
-	6,  // 17: daemon.StartedService.SubscribeStatus:input_type -> daemon.SubscribeStatusRequest
+	5,  // 17: daemon.StartedService.SubscribeStatus:input_type -> daemon.SubscribeStatusRequest
 	29, // 18: daemon.StartedService.SubscribeGroups:input_type -> google.protobuf.Empty
 	29, // 19: daemon.StartedService.GetClashModeStatus:input_type -> google.protobuf.Empty
 	29, // 20: daemon.StartedService.SubscribeClashMode:input_type -> google.protobuf.Empty
-	16, // 21: daemon.StartedService.SetClashMode:input_type -> daemon.ClashMode
-	13, // 22: daemon.StartedService.URLTest:input_type -> daemon.URLTestRequest
-	14, // 23: daemon.StartedService.SelectOutbound:input_type -> daemon.SelectOutboundRequest
-	15, // 24: daemon.StartedService.SetGroupExpand:input_type -> daemon.SetGroupExpandRequest
+	15, // 21: daemon.StartedService.SetClashMode:input_type -> daemon.ClashMode
+	12, // 22: daemon.StartedService.URLTest:input_type -> daemon.URLTestRequest
+	13, // 23: daemon.StartedService.SelectOutbound:input_type -> daemon.SelectOutboundRequest
+	14, // 24: daemon.StartedService.SetGroupExpand:input_type -> daemon.SetGroupExpandRequest
 	29, // 25: daemon.StartedService.GetSystemProxyStatus:input_type -> google.protobuf.Empty
-	19, // 26: daemon.StartedService.SetSystemProxyEnabled:input_type -> daemon.SetSystemProxyEnabledRequest
-	20, // 27: daemon.StartedService.SubscribeConnections:input_type -> daemon.SubscribeConnectionsRequest
+	18, // 26: daemon.StartedService.SetSystemProxyEnabled:input_type -> daemon.SetSystemProxyEnabledRequest
+	19, // 27: daemon.StartedService.SubscribeConnections:input_type -> daemon.SubscribeConnectionsRequest
 	24, // 28: daemon.StartedService.CloseConnection:input_type -> daemon.CloseConnectionRequest
 	29, // 29: daemon.StartedService.CloseAllConnections:input_type -> google.protobuf.Empty
 	29, // 30: daemon.StartedService.GetDeprecatedWarnings:input_type -> google.protobuf.Empty
 	29, // 31: daemon.StartedService.GetStartedAt:input_type -> google.protobuf.Empty
 	29, // 32: daemon.StartedService.StopService:output_type -> google.protobuf.Empty
 	29, // 33: daemon.StartedService.ReloadService:output_type -> google.protobuf.Empty
-	4,  // 34: daemon.StartedService.SubscribeServiceStatus:output_type -> daemon.ServiceStatus
-	7,  // 35: daemon.StartedService.SubscribeLog:output_type -> daemon.Log
-	8,  // 36: daemon.StartedService.GetDefaultLogLevel:output_type -> daemon.DefaultLogLevel
+	3,  // 34: daemon.StartedService.SubscribeServiceStatus:output_type -> daemon.ServiceStatus
+	6,  // 35: daemon.StartedService.SubscribeLog:output_type -> daemon.Log
+	7,  // 36: daemon.StartedService.GetDefaultLogLevel:output_type -> daemon.DefaultLogLevel
 	29, // 37: daemon.StartedService.ClearLogs:output_type -> google.protobuf.Empty
-	9,  // 38: daemon.StartedService.SubscribeStatus:output_type -> daemon.Status
-	10, // 39: daemon.StartedService.SubscribeGroups:output_type -> daemon.Groups
-	17, // 40: daemon.StartedService.GetClashModeStatus:output_type -> daemon.ClashModeStatus
-	16, // 41: daemon.StartedService.SubscribeClashMode:output_type -> daemon.ClashMode
+	8,  // 38: daemon.StartedService.SubscribeStatus:output_type -> daemon.Status
+	9,  // 39: daemon.StartedService.SubscribeGroups:output_type -> daemon.Groups
+	16, // 40: daemon.StartedService.GetClashModeStatus:output_type -> daemon.ClashModeStatus
+	15, // 41: daemon.StartedService.SubscribeClashMode:output_type -> daemon.ClashMode
 	29, // 42: daemon.StartedService.SetClashMode:output_type -> google.protobuf.Empty
 	29, // 43: daemon.StartedService.URLTest:output_type -> google.protobuf.Empty
 	29, // 44: daemon.StartedService.SelectOutbound:output_type -> google.protobuf.Empty
 	29, // 45: daemon.StartedService.SetGroupExpand:output_type -> google.protobuf.Empty
-	18, // 46: daemon.StartedService.GetSystemProxyStatus:output_type -> daemon.SystemProxyStatus
+	17, // 46: daemon.StartedService.GetSystemProxyStatus:output_type -> daemon.SystemProxyStatus
 	29, // 47: daemon.StartedService.SetSystemProxyEnabled:output_type -> google.protobuf.Empty
-	21, // 48: daemon.StartedService.SubscribeConnections:output_type -> daemon.Connections
+	21, // 48: daemon.StartedService.SubscribeConnections:output_type -> daemon.ConnectionEvents
 	29, // 49: daemon.StartedService.CloseConnection:output_type -> google.protobuf.Empty
 	29, // 50: daemon.StartedService.CloseAllConnections:output_type -> google.protobuf.Empty
 	25, // 51: daemon.StartedService.GetDeprecatedWarnings:output_type -> daemon.DeprecatedWarnings
@@ -2027,8 +2056,8 @@ func file_daemon_started_service_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: unsafe.Slice(unsafe.StringData(file_daemon_started_service_proto_rawDesc), len(file_daemon_started_service_proto_rawDesc)),
-			NumEnums:      4,
-			NumMessages:   25,
+			NumEnums:      3,
+			NumMessages:   26,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

daemon/started_service.proto

@@ -27,7 +27,7 @@ service StartedService {
   rpc GetSystemProxyStatus(google.protobuf.Empty) returns(SystemProxyStatus) {}
   rpc SetSystemProxyEnabled(SetSystemProxyEnabledRequest) returns(google.protobuf.Empty) {}
 
-  rpc SubscribeConnections(SubscribeConnectionsRequest) returns(stream Connections) {}
+  rpc SubscribeConnections(SubscribeConnectionsRequest) returns(stream ConnectionEvents) {}
   rpc CloseConnection(CloseConnectionRequest) returns(google.protobuf.Empty) {}
   rpc CloseAllConnections(google.protobuf.Empty) returns(google.protobuf.Empty) {}
   rpc GetDeprecatedWarnings(google.protobuf.Empty) returns(DeprecatedWarnings) {}
@@ -143,24 +143,26 @@ message SetSystemProxyEnabledRequest {
 
 message SubscribeConnectionsRequest {
   int64 interval = 1;
-  ConnectionFilter filter = 2;
-  ConnectionSortBy sortBy = 3;
 }
 
-enum ConnectionFilter {
-  ALL = 0;
-  ACTIVE = 1;
-  CLOSED = 2;
+enum ConnectionEventType {
+  CONNECTION_EVENT_NEW = 0;
+  CONNECTION_EVENT_UPDATE = 1;
+  CONNECTION_EVENT_CLOSED = 2;
 }
 
-enum ConnectionSortBy {
-  DATE = 0;
-  TRAFFIC = 1;
-  TOTAL_TRAFFIC = 2;
+message ConnectionEvent {
+  ConnectionEventType type = 1;
+  string id = 2;
+  Connection connection = 3;
+  int64 uplinkDelta = 4;
+  int64 downlinkDelta = 5;
+  int64 closedAt = 6;
 }
 
-message Connections {
-  repeated Connection connections = 1;
+message ConnectionEvents {
+  repeated ConnectionEvent events = 1;
+  bool reset = 2;
 }
 
 message Connection {

daemon/started_service_grpc.pb.go

@@ -58,7 +58,7 @@ type StartedServiceClient interface {
 	SetGroupExpand(ctx context.Context, in *SetGroupExpandRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	GetSystemProxyStatus(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*SystemProxyStatus, error)
 	SetSystemProxyEnabled(ctx context.Context, in *SetSystemProxyEnabledRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
-	SubscribeConnections(ctx context.Context, in *SubscribeConnectionsRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[Connections], error)
+	SubscribeConnections(ctx context.Context, in *SubscribeConnectionsRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[ConnectionEvents], error)
 	CloseConnection(ctx context.Context, in *CloseConnectionRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	CloseAllConnections(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	GetDeprecatedWarnings(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*DeprecatedWarnings, error)
@@ -278,13 +278,13 @@ func (c *startedServiceClient) SetSystemProxyEnabled(ctx context.Context, in *Se
 	return out, nil
 }
 
-func (c *startedServiceClient) SubscribeConnections(ctx context.Context, in *SubscribeConnectionsRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[Connections], error) {
+func (c *startedServiceClient) SubscribeConnections(ctx context.Context, in *SubscribeConnectionsRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[ConnectionEvents], error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	stream, err := c.cc.NewStream(ctx, &StartedService_ServiceDesc.Streams[5], StartedService_SubscribeConnections_FullMethodName, cOpts...)
 	if err != nil {
 		return nil, err
 	}
-	x := &grpc.GenericClientStream[SubscribeConnectionsRequest, Connections]{ClientStream: stream}
+	x := &grpc.GenericClientStream[SubscribeConnectionsRequest, ConnectionEvents]{ClientStream: stream}
 	if err := x.ClientStream.SendMsg(in); err != nil {
 		return nil, err
 	}
@@ -295,7 +295,7 @@ func (c *startedServiceClient) SubscribeConnections(ctx context.Context, in *Sub
 }
 
 // This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_SubscribeConnectionsClient = grpc.ServerStreamingClient[Connections]
+type StartedService_SubscribeConnectionsClient = grpc.ServerStreamingClient[ConnectionEvents]
 
 func (c *startedServiceClient) CloseConnection(ctx context.Context, in *CloseConnectionRequest, opts ...grpc.CallOption) (*emptypb.Empty, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
@@ -357,7 +357,7 @@ type StartedServiceServer interface {
 	SetGroupExpand(context.Context, *SetGroupExpandRequest) (*emptypb.Empty, error)
 	GetSystemProxyStatus(context.Context, *emptypb.Empty) (*SystemProxyStatus, error)
 	SetSystemProxyEnabled(context.Context, *SetSystemProxyEnabledRequest) (*emptypb.Empty, error)
-	SubscribeConnections(*SubscribeConnectionsRequest, grpc.ServerStreamingServer[Connections]) error
+	SubscribeConnections(*SubscribeConnectionsRequest, grpc.ServerStreamingServer[ConnectionEvents]) error
 	CloseConnection(context.Context, *CloseConnectionRequest) (*emptypb.Empty, error)
 	CloseAllConnections(context.Context, *emptypb.Empty) (*emptypb.Empty, error)
 	GetDeprecatedWarnings(context.Context, *emptypb.Empty) (*DeprecatedWarnings, error)
@@ -373,87 +373,87 @@ type StartedServiceServer interface {
 type UnimplementedStartedServiceServer struct{}
 
 func (UnimplementedStartedServiceServer) StopService(context.Context, *emptypb.Empty) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method StopService not implemented")
+	return nil, status.Error(codes.Unimplemented, "method StopService not implemented")
 }
 
 func (UnimplementedStartedServiceServer) ReloadService(context.Context, *emptypb.Empty) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method ReloadService not implemented")
+	return nil, status.Error(codes.Unimplemented, "method ReloadService not implemented")
 }
 
 func (UnimplementedStartedServiceServer) SubscribeServiceStatus(*emptypb.Empty, grpc.ServerStreamingServer[ServiceStatus]) error {
-	return status.Errorf(codes.Unimplemented, "method SubscribeServiceStatus not implemented")
+	return status.Error(codes.Unimplemented, "method SubscribeServiceStatus not implemented")
 }
 
 func (UnimplementedStartedServiceServer) SubscribeLog(*emptypb.Empty, grpc.ServerStreamingServer[Log]) error {
-	return status.Errorf(codes.Unimplemented, "method SubscribeLog not implemented")
+	return status.Error(codes.Unimplemented, "method SubscribeLog not implemented")
 }
 
 func (UnimplementedStartedServiceServer) GetDefaultLogLevel(context.Context, *emptypb.Empty) (*DefaultLogLevel, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetDefaultLogLevel not implemented")
+	return nil, status.Error(codes.Unimplemented, "method GetDefaultLogLevel not implemented")
 }
 
 func (UnimplementedStartedServiceServer) ClearLogs(context.Context, *emptypb.Empty) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method ClearLogs not implemented")
+	return nil, status.Error(codes.Unimplemented, "method ClearLogs not implemented")
 }
 
 func (UnimplementedStartedServiceServer) SubscribeStatus(*SubscribeStatusRequest, grpc.ServerStreamingServer[Status]) error {
-	return status.Errorf(codes.Unimplemented, "method SubscribeStatus not implemented")
+	return status.Error(codes.Unimplemented, "method SubscribeStatus not implemented")
 }
 
 func (UnimplementedStartedServiceServer) SubscribeGroups(*emptypb.Empty, grpc.ServerStreamingServer[Groups]) error {
-	return status.Errorf(codes.Unimplemented, "method SubscribeGroups not implemented")
+	return status.Error(codes.Unimplemented, "method SubscribeGroups not implemented")
 }
 
 func (UnimplementedStartedServiceServer) GetClashModeStatus(context.Context, *emptypb.Empty) (*ClashModeStatus, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetClashModeStatus not implemented")
+	return nil, status.Error(codes.Unimplemented, "method GetClashModeStatus not implemented")
 }
 
 func (UnimplementedStartedServiceServer) SubscribeClashMode(*emptypb.Empty, grpc.ServerStreamingServer[ClashMode]) error {
-	return status.Errorf(codes.Unimplemented, "method SubscribeClashMode not implemented")
+	return status.Error(codes.Unimplemented, "method SubscribeClashMode not implemented")
 }
 
 func (UnimplementedStartedServiceServer) SetClashMode(context.Context, *ClashMode) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method SetClashMode not implemented")
+	return nil, status.Error(codes.Unimplemented, "method SetClashMode not implemented")
 }
 
 func (UnimplementedStartedServiceServer) URLTest(context.Context, *URLTestRequest) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method URLTest not implemented")
+	return nil, status.Error(codes.Unimplemented, "method URLTest not implemented")
 }
 
 func (UnimplementedStartedServiceServer) SelectOutbound(context.Context, *SelectOutboundRequest) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method SelectOutbound not implemented")
+	return nil, status.Error(codes.Unimplemented, "method SelectOutbound not implemented")
 }
 
 func (UnimplementedStartedServiceServer) SetGroupExpand(context.Context, *SetGroupExpandRequest) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method SetGroupExpand not implemented")
+	return nil, status.Error(codes.Unimplemented, "method SetGroupExpand not implemented")
 }
 
 func (UnimplementedStartedServiceServer) GetSystemProxyStatus(context.Context, *emptypb.Empty) (*SystemProxyStatus, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetSystemProxyStatus not implemented")
+	return nil, status.Error(codes.Unimplemented, "method GetSystemProxyStatus not implemented")
 }
 
 func (UnimplementedStartedServiceServer) SetSystemProxyEnabled(context.Context, *SetSystemProxyEnabledRequest) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method SetSystemProxyEnabled not implemented")
+	return nil, status.Error(codes.Unimplemented, "method SetSystemProxyEnabled not implemented")
 }
 
-func (UnimplementedStartedServiceServer) SubscribeConnections(*SubscribeConnectionsRequest, grpc.ServerStreamingServer[Connections]) error {
-	return status.Errorf(codes.Unimplemented, "method SubscribeConnections not implemented")
+func (UnimplementedStartedServiceServer) SubscribeConnections(*SubscribeConnectionsRequest, grpc.ServerStreamingServer[ConnectionEvents]) error {
+	return status.Error(codes.Unimplemented, "method SubscribeConnections not implemented")
 }
 
 func (UnimplementedStartedServiceServer) CloseConnection(context.Context, *CloseConnectionRequest) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method CloseConnection not implemented")
+	return nil, status.Error(codes.Unimplemented, "method CloseConnection not implemented")
 }
 
 func (UnimplementedStartedServiceServer) CloseAllConnections(context.Context, *emptypb.Empty) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method CloseAllConnections not implemented")
+	return nil, status.Error(codes.Unimplemented, "method CloseAllConnections not implemented")
 }
 
 func (UnimplementedStartedServiceServer) GetDeprecatedWarnings(context.Context, *emptypb.Empty) (*DeprecatedWarnings, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetDeprecatedWarnings not implemented")
+	return nil, status.Error(codes.Unimplemented, "method GetDeprecatedWarnings not implemented")
 }
 
 func (UnimplementedStartedServiceServer) GetStartedAt(context.Context, *emptypb.Empty) (*StartedAt, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetStartedAt not implemented")
+	return nil, status.Error(codes.Unimplemented, "method GetStartedAt not implemented")
 }
 func (UnimplementedStartedServiceServer) mustEmbedUnimplementedStartedServiceServer() {}
 func (UnimplementedStartedServiceServer) testEmbeddedByValue()                        {}
@@ -466,7 +466,7 @@ type UnsafeStartedServiceServer interface {
 }
 
 func RegisterStartedServiceServer(s grpc.ServiceRegistrar, srv StartedServiceServer) {
-	// If the following call pancis, it indicates UnimplementedStartedServiceServer was
+	// If the following call panics, it indicates UnimplementedStartedServiceServer was
 	// embedded by pointer and is nil.  This will cause panics if an
 	// unimplemented method is ever invoked, so we test this at initialization
 	// time to prevent it from happening at runtime later due to I/O.
@@ -734,11 +734,11 @@ func _StartedService_SubscribeConnections_Handler(srv interface{}, stream grpc.S
 	if err := stream.RecvMsg(m); err != nil {
 		return err
 	}
-	return srv.(StartedServiceServer).SubscribeConnections(m, &grpc.GenericServerStream[SubscribeConnectionsRequest, Connections]{ServerStream: stream})
+	return srv.(StartedServiceServer).SubscribeConnections(m, &grpc.GenericServerStream[SubscribeConnectionsRequest, ConnectionEvents]{ServerStream: stream})
 }
 
 // This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_SubscribeConnectionsServer = grpc.ServerStreamingServer[Connections]
+type StartedService_SubscribeConnectionsServer = grpc.ServerStreamingServer[ConnectionEvents]
 
 func _StartedService_CloseConnection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(CloseConnectionRequest)

experimental/clashapi/trafficontrol/manager.go

@@ -10,11 +10,29 @@ import (
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/json"
+	"github.com/sagernet/sing/common/observable"
 	"github.com/sagernet/sing/common/x/list"
 
 	"github.com/gofrs/uuid/v5"
 )
 
+type ConnectionEventType int
+
+const (
+	ConnectionEventNew ConnectionEventType = iota
+	ConnectionEventUpdate
+	ConnectionEventClosed
+)
+
+type ConnectionEvent struct {
+	Type          ConnectionEventType
+	ID            uuid.UUID
+	Metadata      TrackerMetadata
+	UplinkDelta   int64
+	DownlinkDelta int64
+	ClosedAt      time.Time
+}
+
 type Manager struct {
 	uploadTotal   atomic.Int64
 	downloadTotal atomic.Int64
@@ -22,16 +40,29 @@ type Manager struct {
 	connections             compatible.Map[uuid.UUID, Tracker]
 	closedConnectionsAccess sync.Mutex
 	closedConnections       list.List[TrackerMetadata]
-	// process     *process.Process
-	memory uint64
+	memory                  uint64
+
+	eventSubscriber *observable.Subscriber[ConnectionEvent]
 }
 
 func NewManager() *Manager {
 	return &Manager{}
 }
 
+func (m *Manager) SetEventHook(subscriber *observable.Subscriber[ConnectionEvent]) {
+	m.eventSubscriber = subscriber
+}
+
 func (m *Manager) Join(c Tracker) {
-	m.connections.Store(c.Metadata().ID, c)
+	metadata := c.Metadata()
+	m.connections.Store(metadata.ID, c)
+	if m.eventSubscriber != nil {
+		m.eventSubscriber.Emit(ConnectionEvent{
+			Type:     ConnectionEventNew,
+			ID:       metadata.ID,
+			Metadata: metadata,
+		})
+	}
 }
 
 func (m *Manager) Leave(c Tracker) {
@@ -40,11 +71,19 @@ func (m *Manager) Leave(c Tracker) {
 	if loaded {
 		metadata.ClosedAt = time.Now()
 		m.closedConnectionsAccess.Lock()
-		defer m.closedConnectionsAccess.Unlock()
 		if m.closedConnections.Len() >= 1000 {
 			m.closedConnections.PopFront()
 		}
 		m.closedConnections.PushBack(metadata)
+		m.closedConnectionsAccess.Unlock()
+		if m.eventSubscriber != nil {
+			m.eventSubscriber.Emit(ConnectionEvent{
+				Type:     ConnectionEventClosed,
+				ID:       metadata.ID,
+				Metadata: metadata,
+				ClosedAt: metadata.ClosedAt,
+			})
+		}
 	}
 }
 

experimental/libbox/command_client.go

@@ -27,6 +27,7 @@ type CommandClient struct {
 	ctx         context.Context
 	cancel      context.CancelFunc
 	clientMutex sync.RWMutex
+	standalone  bool
 }
 
 type CommandClientOptions struct {
@@ -48,7 +49,7 @@ type CommandClientHandler interface {
 	WriteGroups(message OutboundGroupIterator)
 	InitializeClashMode(modeList StringIterator, currentMode string)
 	UpdateClashMode(newMode string)
-	WriteConnections(message *Connections)
+	WriteConnectionEvents(events *ConnectionEvents)
 }
 
 type LogEntry struct {
@@ -73,7 +74,7 @@ func SetXPCDialer(dialer XPCDialer) {
 }
 
 func NewStandaloneCommandClient() *CommandClient {
-	return new(CommandClient)
+	return &CommandClient{standalone: true}
 }
 
 func NewCommandClient(handler CommandClientHandler, options *CommandClientOptions) *CommandClient {
@@ -97,147 +98,135 @@ func streamClientAuthInterceptor(ctx context.Context, desc *grpc.StreamDesc, cc
 	return streamer(ctx, desc, cc, method, opts...)
 }
 
-func (c *CommandClient) grpcDial() (*grpc.ClientConn, error) {
-	var target string
-	if sCommandServerListenPort == 0 {
-		target = "unix://" + filepath.Join(sBasePath, "command.sock")
-	} else {
-		target = net.JoinHostPort("127.0.0.1", strconv.Itoa(int(sCommandServerListenPort)))
-	}
-	var (
-		conn *grpc.ClientConn
-		err  error
-	)
-	clientOptions := []grpc.DialOption{
-		grpc.WithTransportCredentials(insecure.NewCredentials()),
-		grpc.WithUnaryInterceptor(unaryClientAuthInterceptor),
-		grpc.WithStreamInterceptor(streamClientAuthInterceptor),
-	}
-	for i := 0; i < 10; i++ {
-		conn, err = grpc.NewClient(target, clientOptions...)
-		if err == nil {
-			return conn, nil
-		}
-		time.Sleep(time.Duration(100+i*50) * time.Millisecond)
-	}
-	return nil, err
-}
+const (
+	commandClientDialAttempts  = 10
+	commandClientDialBaseDelay = 100 * time.Millisecond
+	commandClientDialStepDelay = 50 * time.Millisecond
+)
 
-func (c *CommandClient) Connect() error {
-	c.clientMutex.Lock()
-	common.Close(common.PtrOrNil(c.grpcConn))
+func commandClientDialDelay(attempt int) time.Duration {
+	return commandClientDialBaseDelay + time.Duration(attempt)*commandClientDialStepDelay
+}
 
+func dialTarget() (string, func(context.Context, string) (net.Conn, error)) {
 	if sXPCDialer != nil {
-		fd, err := sXPCDialer.DialXPC()
-		if err != nil {
-			c.clientMutex.Unlock()
-			return err
-		}
-		file := os.NewFile(uintptr(fd), "xpc-command-socket")
-		if file == nil {
-			c.clientMutex.Unlock()
-			return E.New("invalid file descriptor")
-		}
-		netConn, err := net.FileConn(file)
-		if err != nil {
-			file.Close()
-			c.clientMutex.Unlock()
-			return E.Cause(err, "create connection from fd")
+		return "passthrough:///xpc", func(ctx context.Context, _ string) (net.Conn, error) {
+			fileDescriptor, err := sXPCDialer.DialXPC()
+			if err != nil {
+				return nil, err
+			}
+			return networkConnectionFromFileDescriptor(fileDescriptor)
 		}
+	}
+	if sCommandServerListenPort == 0 {
+		return "unix://" + filepath.Join(sBasePath, "command.sock"), nil
+	}
+	return net.JoinHostPort("127.0.0.1", strconv.Itoa(int(sCommandServerListenPort))), nil
+}
+
+func networkConnectionFromFileDescriptor(fileDescriptor int32) (net.Conn, error) {
+	file := os.NewFile(uintptr(fileDescriptor), "xpc-command-socket")
+	if file == nil {
+		return nil, E.New("invalid file descriptor")
+	}
+	networkConnection, err := net.FileConn(file)
+	if err != nil {
 		file.Close()
+		return nil, E.Cause(err, "create connection from fd")
+	}
+	file.Close()
+	return networkConnection, nil
+}
 
-		clientOptions := []grpc.DialOption{
-			grpc.WithTransportCredentials(insecure.NewCredentials()),
-			grpc.WithContextDialer(func(ctx context.Context, _ string) (net.Conn, error) {
-				return netConn, nil
-			}),
-			grpc.WithUnaryInterceptor(unaryClientAuthInterceptor),
-			grpc.WithStreamInterceptor(streamClientAuthInterceptor),
-		}
+func (c *CommandClient) dialWithRetry(target string, contextDialer func(context.Context, string) (net.Conn, error), retryDial bool) (*grpc.ClientConn, daemon.StartedServiceClient, error) {
+	var connection *grpc.ClientConn
+	var client daemon.StartedServiceClient
+	var lastError error
 
-		grpcConn, err := grpc.NewClient("passthrough:///xpc", clientOptions...)
-		if err != nil {
-			netConn.Close()
-			c.clientMutex.Unlock()
-			return err
+	for attempt := 0; attempt < commandClientDialAttempts; attempt++ {
+		if connection == nil {
+			options := []grpc.DialOption{
+				grpc.WithTransportCredentials(insecure.NewCredentials()),
+				grpc.WithUnaryInterceptor(unaryClientAuthInterceptor),
+				grpc.WithStreamInterceptor(streamClientAuthInterceptor),
+			}
+			if contextDialer != nil {
+				options = append(options, grpc.WithContextDialer(contextDialer))
+			}
+			var err error
+			connection, err = grpc.NewClient(target, options...)
+			if err != nil {
+				lastError = err
+				if !retryDial {
+					return nil, nil, err
+				}
+				time.Sleep(commandClientDialDelay(attempt))
+				continue
+			}
+			client = daemon.NewStartedServiceClient(connection)
 		}
-
-		c.grpcConn = grpcConn
-		c.grpcClient = daemon.NewStartedServiceClient(grpcConn)
-		c.ctx, c.cancel = context.WithCancel(context.Background())
-		c.clientMutex.Unlock()
-	} else {
-		conn, err := c.grpcDial()
-		if err != nil {
-			c.clientMutex.Unlock()
-			return err
+		waitDuration := commandClientDialDelay(attempt)
+		ctx, cancel := context.WithTimeout(context.Background(), waitDuration)
+		_, err := client.GetStartedAt(ctx, &emptypb.Empty{}, grpc.WaitForReady(true))
+		cancel()
+		if err == nil {
+			return connection, client, nil
 		}
-		c.grpcConn = conn
-		c.grpcClient = daemon.NewStartedServiceClient(conn)
-		c.ctx, c.cancel = context.WithCancel(context.Background())
-		c.clientMutex.Unlock()
+		lastError = err
 	}
 
-	c.handler.Connected()
-	for _, command := range c.options.commands {
-		switch command {
-		case CommandLog:
-			go c.handleLogStream()
-		case CommandStatus:
-			go c.handleStatusStream()
-		case CommandGroup:
-			go c.handleGroupStream()
-		case CommandClashMode:
-			go c.handleClashModeStream()
-		case CommandConnections:
-			go c.handleConnectionsStream()
-		default:
-			return E.New("unknown command: ", command)
-		}
+	if connection != nil {
+		connection.Close()
 	}
-	return nil
+	return nil, nil, lastError
 }
 
-func (c *CommandClient) ConnectWithFD(fd int32) error {
+func (c *CommandClient) Connect() error {
 	c.clientMutex.Lock()
 	common.Close(common.PtrOrNil(c.grpcConn))
 
-	file := os.NewFile(uintptr(fd), "xpc-command-socket")
-	if file == nil {
+	target, contextDialer := dialTarget()
+	connection, client, err := c.dialWithRetry(target, contextDialer, true)
+	if err != nil {
 		c.clientMutex.Unlock()
-		return E.New("invalid file descriptor")
+		return err
 	}
+	c.grpcConn = connection
+	c.grpcClient = client
+	c.ctx, c.cancel = context.WithCancel(context.Background())
+	c.clientMutex.Unlock()
+
+	c.handler.Connected()
+	return c.dispatchCommands()
+}
 
-	netConn, err := net.FileConn(file)
+func (c *CommandClient) ConnectWithFD(fd int32) error {
+	c.clientMutex.Lock()
+	common.Close(common.PtrOrNil(c.grpcConn))
+
+	networkConnection, err := networkConnectionFromFileDescriptor(fd)
 	if err != nil {
-		file.Close()
 		c.clientMutex.Unlock()
-		return E.Cause(err, "create connection from fd")
-	}
-	file.Close()
-
-	clientOptions := []grpc.DialOption{
-		grpc.WithTransportCredentials(insecure.NewCredentials()),
-		grpc.WithContextDialer(func(ctx context.Context, _ string) (net.Conn, error) {
-			return netConn, nil
-		}),
-		grpc.WithUnaryInterceptor(unaryClientAuthInterceptor),
-		grpc.WithStreamInterceptor(streamClientAuthInterceptor),
+		return err
 	}
-
-	grpcConn, err := grpc.NewClient("passthrough:///xpc", clientOptions...)
+	connection, client, err := c.dialWithRetry("passthrough:///xpc", func(ctx context.Context, _ string) (net.Conn, error) {
+		return networkConnection, nil
+	}, false)
 	if err != nil {
-		netConn.Close()
+		networkConnection.Close()
 		c.clientMutex.Unlock()
 		return err
 	}
-
-	c.grpcConn = grpcConn
-	c.grpcClient = daemon.NewStartedServiceClient(grpcConn)
+	c.grpcConn = connection
+	c.grpcClient = client
 	c.ctx, c.cancel = context.WithCancel(context.Background())
 	c.clientMutex.Unlock()
 
 	c.handler.Connected()
+	return c.dispatchCommands()
+}
+
+func (c *CommandClient) dispatchCommands() error {
 	for _, command := range c.options.commands {
 		switch command {
 		case CommandLog:
@@ -281,57 +270,41 @@ func (c *CommandClient) getClientForCall() (daemon.StartedServiceClient, error)
 		return c.grpcClient, nil
 	}
 
-	if sXPCDialer != nil {
-		fd, err := sXPCDialer.DialXPC()
-		if err != nil {
-			return nil, err
-		}
-		file := os.NewFile(uintptr(fd), "xpc-command-socket")
-		if file == nil {
-			return nil, E.New("invalid file descriptor")
-		}
-		netConn, err := net.FileConn(file)
-		if err != nil {
-			file.Close()
-			return nil, E.Cause(err, "create connection from fd")
-		}
-		file.Close()
-
-		clientOptions := []grpc.DialOption{
-			grpc.WithTransportCredentials(insecure.NewCredentials()),
-			grpc.WithContextDialer(func(ctx context.Context, _ string) (net.Conn, error) {
-				return netConn, nil
-			}),
-			grpc.WithUnaryInterceptor(unaryClientAuthInterceptor),
-			grpc.WithStreamInterceptor(streamClientAuthInterceptor),
-		}
-
-		grpcConn, err := grpc.NewClient("passthrough:///xpc", clientOptions...)
-		if err != nil {
-			netConn.Close()
-			return nil, err
-		}
-
-		c.grpcConn = grpcConn
-		c.grpcClient = daemon.NewStartedServiceClient(grpcConn)
-		if c.ctx == nil {
-			c.ctx, c.cancel = context.WithCancel(context.Background())
-		}
-		return c.grpcClient, nil
-	}
-
-	conn, err := c.grpcDial()
+	target, contextDialer := dialTarget()
+	connection, client, err := c.dialWithRetry(target, contextDialer, true)
 	if err != nil {
 		return nil, err
 	}
-	c.grpcConn = conn
-	c.grpcClient = daemon.NewStartedServiceClient(conn)
+	c.grpcConn = connection
+	c.grpcClient = client
 	if c.ctx == nil {
 		c.ctx, c.cancel = context.WithCancel(context.Background())
 	}
 	return c.grpcClient, nil
 }
 
+func (c *CommandClient) closeConnection() {
+	c.clientMutex.Lock()
+	defer c.clientMutex.Unlock()
+	if c.grpcConn != nil {
+		c.grpcConn.Close()
+		c.grpcConn = nil
+		c.grpcClient = nil
+	}
+}
+
+func callWithResult[T any](c *CommandClient, call func(client daemon.StartedServiceClient) (T, error)) (T, error) {
+	client, err := c.getClientForCall()
+	if err != nil {
+		var zero T
+		return zero, err
+	}
+	if c.standalone {
+		defer c.closeConnection()
+	}
+	return call(client)
+}
+
 func (c *CommandClient) getStreamContext() (daemon.StartedServiceClient, context.Context) {
 	c.clientMutex.RLock()
 	defer c.clientMutex.RUnlock()
@@ -468,175 +441,134 @@ func (c *CommandClient) handleConnectionsStream() {
 		return
 	}
 
-	var connections Connections
 	for {
-		conns, err := stream.Recv()
+		events, err := stream.Recv()
 		if err != nil {
 			c.handler.Disconnected(err.Error())
 			return
 		}
-		connections.input = ConnectionsFromGRPC(conns)
-		c.handler.WriteConnections(&connections)
+		libboxEvents := ConnectionEventsFromGRPC(events)
+		c.handler.WriteConnectionEvents(libboxEvents)
 	}
 }
 
 func (c *CommandClient) SelectOutbound(groupTag string, outboundTag string) error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.SelectOutbound(context.Background(), &daemon.SelectOutboundRequest{
-		GroupTag:    groupTag,
-		OutboundTag: outboundTag,
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.SelectOutbound(context.Background(), &daemon.SelectOutboundRequest{
+			GroupTag:    groupTag,
+			OutboundTag: outboundTag,
+		})
 	})
 	return err
 }
 
 func (c *CommandClient) URLTest(groupTag string) error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.URLTest(context.Background(), &daemon.URLTestRequest{
-		OutboundTag: groupTag,
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.URLTest(context.Background(), &daemon.URLTestRequest{
+			OutboundTag: groupTag,
+		})
 	})
 	return err
 }
 
 func (c *CommandClient) SetClashMode(newMode string) error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.SetClashMode(context.Background(), &daemon.ClashMode{
-		Mode: newMode,
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.SetClashMode(context.Background(), &daemon.ClashMode{
+			Mode: newMode,
+		})
 	})
 	return err
 }
 
 func (c *CommandClient) CloseConnection(connId string) error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.CloseConnection(context.Background(), &daemon.CloseConnectionRequest{
-		Id: connId,
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.CloseConnection(context.Background(), &daemon.CloseConnectionRequest{
+			Id: connId,
+		})
 	})
 	return err
 }
 
 func (c *CommandClient) CloseConnections() error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.CloseAllConnections(context.Background(), &emptypb.Empty{})
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.CloseAllConnections(context.Background(), &emptypb.Empty{})
+	})
 	return err
 }
 
 func (c *CommandClient) ServiceReload() error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.ReloadService(context.Background(), &emptypb.Empty{})
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.ReloadService(context.Background(), &emptypb.Empty{})
+	})
 	return err
 }
 
 func (c *CommandClient) ServiceClose() error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.StopService(context.Background(), &emptypb.Empty{})
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.StopService(context.Background(), &emptypb.Empty{})
+	})
 	return err
 }
 
 func (c *CommandClient) ClearLogs() error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.ClearLogs(context.Background(), &emptypb.Empty{})
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.ClearLogs(context.Background(), &emptypb.Empty{})
+	})
 	return err
 }
 
 func (c *CommandClient) GetSystemProxyStatus() (*SystemProxyStatus, error) {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return nil, err
-	}
-
-	status, err := client.GetSystemProxyStatus(context.Background(), &emptypb.Empty{})
-	if err != nil {
-		return nil, err
-	}
-	return SystemProxyStatusFromGRPC(status), nil
+	return callWithResult(c, func(client daemon.StartedServiceClient) (*SystemProxyStatus, error) {
+		status, err := client.GetSystemProxyStatus(context.Background(), &emptypb.Empty{})
+		if err != nil {
+			return nil, err
+		}
+		return SystemProxyStatusFromGRPC(status), nil
+	})
 }
 
 func (c *CommandClient) SetSystemProxyEnabled(isEnabled bool) error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.SetSystemProxyEnabled(context.Background(), &daemon.SetSystemProxyEnabledRequest{
-		Enabled: isEnabled,
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.SetSystemProxyEnabled(context.Background(), &daemon.SetSystemProxyEnabledRequest{
+			Enabled: isEnabled,
+		})
 	})
 	return err
 }
 
 func (c *CommandClient) GetDeprecatedNotes() (DeprecatedNoteIterator, error) {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return nil, err
-	}
-
-	warnings, err := client.GetDeprecatedWarnings(context.Background(), &emptypb.Empty{})
-	if err != nil {
-		return nil, err
-	}
-
-	var notes []*DeprecatedNote
-	for _, warning := range warnings.Warnings {
-		notes = append(notes, &DeprecatedNote{
-			Description:   warning.Message,
-			MigrationLink: warning.MigrationLink,
-		})
-	}
-	return newIterator(notes), nil
+	return callWithResult(c, func(client daemon.StartedServiceClient) (DeprecatedNoteIterator, error) {
+		warnings, err := client.GetDeprecatedWarnings(context.Background(), &emptypb.Empty{})
+		if err != nil {
+			return nil, err
+		}
+		var notes []*DeprecatedNote
+		for _, warning := range warnings.Warnings {
+			notes = append(notes, &DeprecatedNote{
+				Description:   warning.Message,
+				MigrationLink: warning.MigrationLink,
+			})
+		}
+		return newIterator(notes), nil
+	})
 }
 
 func (c *CommandClient) GetStartedAt() (int64, error) {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return 0, err
-	}
-
-	startedAt, err := client.GetStartedAt(context.Background(), &emptypb.Empty{})
-	if err != nil {
-		return 0, err
-	}
-	return startedAt.StartedAt, nil
+	return callWithResult(c, func(client daemon.StartedServiceClient) (int64, error) {
+		startedAt, err := client.GetStartedAt(context.Background(), &emptypb.Empty{})
+		if err != nil {
+			return 0, err
+		}
+		return startedAt.StartedAt, nil
+	})
 }
 
 func (c *CommandClient) SetGroupExpand(groupTag string, isExpand bool) error {
-	client, err := c.getClientForCall()
-	if err != nil {
-		return err
-	}
-
-	_, err = client.SetGroupExpand(context.Background(), &daemon.SetGroupExpandRequest{
-		GroupTag: groupTag,
-		IsExpand: isExpand,
+	_, err := callWithResult(c, func(client daemon.StartedServiceClient) (*emptypb.Empty, error) {
+		return client.SetGroupExpand(context.Background(), &daemon.SetGroupExpandRequest{
+			GroupTag: groupTag,
+			IsExpand: isExpand,
+		})
 	})
 	return err
 }

experimental/libbox/command_types.go

@@ -3,6 +3,7 @@ package libbox
 import (
 	"slices"
 	"strings"
+	"time"
 
 	"github.com/sagernet/sing-box/daemon"
 	M "github.com/sagernet/sing/common/metadata"
@@ -61,12 +62,119 @@ const (
 	ConnectionStateClosed
 )
 
+const (
+	ConnectionEventNew = iota
+	ConnectionEventUpdate
+	ConnectionEventClosed
+)
+
+const (
+	closedConnectionMaxAge = int64((5 * time.Minute) / time.Millisecond)
+)
+
+type ConnectionEvent struct {
+	Type          int32
+	ID            string
+	Connection    *Connection
+	UplinkDelta   int64
+	DownlinkDelta int64
+	ClosedAt      int64
+}
+
+type ConnectionEvents struct {
+	Reset  bool
+	events []*ConnectionEvent
+}
+
+func (c *ConnectionEvents) Iterator() ConnectionEventIterator {
+	return newIterator(c.events)
+}
+
+type ConnectionEventIterator interface {
+	Next() *ConnectionEvent
+	HasNext() bool
+}
+
 type Connections struct {
-	input    []Connection
-	filtered []Connection
+	connectionMap map[string]*Connection
+	input         []Connection
+	filtered      []Connection
+	filterState   int32
+	filterApplied bool
+}
+
+func NewConnections() *Connections {
+	return &Connections{
+		connectionMap: make(map[string]*Connection),
+	}
+}
+
+func (c *Connections) ApplyEvents(events *ConnectionEvents) {
+	if events == nil {
+		return
+	}
+	if events.Reset {
+		c.connectionMap = make(map[string]*Connection)
+	}
+
+	for _, event := range events.events {
+		switch event.Type {
+		case ConnectionEventNew:
+			if event.Connection != nil {
+				conn := *event.Connection
+				c.connectionMap[event.ID] = &conn
+			}
+		case ConnectionEventUpdate:
+			if conn, ok := c.connectionMap[event.ID]; ok {
+				conn.Uplink = event.UplinkDelta
+				conn.Downlink = event.DownlinkDelta
+				conn.UplinkTotal += event.UplinkDelta
+				conn.DownlinkTotal += event.DownlinkDelta
+			}
+		case ConnectionEventClosed:
+			if event.Connection != nil {
+				conn := *event.Connection
+				conn.ClosedAt = event.ClosedAt
+				conn.Uplink = 0
+				conn.Downlink = 0
+				c.connectionMap[event.ID] = &conn
+				continue
+			}
+			if conn, ok := c.connectionMap[event.ID]; ok {
+				conn.ClosedAt = event.ClosedAt
+				conn.Uplink = 0
+				conn.Downlink = 0
+			}
+		}
+	}
+
+	c.evictClosedConnections(time.Now().UnixMilli())
+	c.input = c.input[:0]
+	for _, conn := range c.connectionMap {
+		c.input = append(c.input, *conn)
+	}
+	if c.filterApplied {
+		c.FilterState(c.filterState)
+	} else {
+		c.filtered = c.filtered[:0]
+		c.filtered = append(c.filtered, c.input...)
+	}
+}
+
+func (c *Connections) evictClosedConnections(nowMilliseconds int64) {
+	for id, conn := range c.connectionMap {
+		if conn.ClosedAt == 0 {
+			continue
+		}
+		if nowMilliseconds-conn.ClosedAt > closedConnectionMaxAge {
+			delete(c.connectionMap, id)
+		}
+	}
 }
 
 func (c *Connections) FilterState(state int32) {
+	c.filterApplied = true
+	c.filterState = state
 	c.filtered = c.filtered[:0]
 	switch state {
 	case ConnectionStateAll:
@@ -264,15 +372,37 @@ func ConnectionFromGRPC(conn *daemon.Connection) Connection {
 	}
 }
 
-func ConnectionsFromGRPC(connections *daemon.Connections) []Connection {
-	if connections == nil || len(connections.Connections) == 0 {
+func ConnectionEventFromGRPC(event *daemon.ConnectionEvent) *ConnectionEvent {
+	if event == nil {
+		return nil
+	}
+	libboxEvent := &ConnectionEvent{
+		Type:          int32(event.Type),
+		ID:            event.Id,
+		UplinkDelta:   event.UplinkDelta,
+		DownlinkDelta: event.DownlinkDelta,
+		ClosedAt:      event.ClosedAt,
+	}
+	if event.Connection != nil {
+		conn := ConnectionFromGRPC(event.Connection)
+		libboxEvent.Connection = &conn
+	}
+	return libboxEvent
+}
+
+func ConnectionEventsFromGRPC(events *daemon.ConnectionEvents) *ConnectionEvents {
+	if events == nil {
 		return nil
 	}
-	var libboxConnections []Connection
-	for _, conn := range connections.Connections {
-		libboxConnections = append(libboxConnections, ConnectionFromGRPC(conn))
+	libboxEvents := &ConnectionEvents{
+		Reset: events.Reset_,
+	}
+	for _, event := range events.Events {
+		if libboxEvent := ConnectionEventFromGRPC(event); libboxEvent != nil {
+			libboxEvents.events = append(libboxEvents.events, libboxEvent)
+		}
 	}
-	return libboxConnections
+	return libboxEvents
 }
 
 func SystemProxyStatusFromGRPC(status *daemon.SystemProxyStatus) *SystemProxyStatus {

experimental/v2rayapi/stats_grpc.pb.go

@@ -84,15 +84,15 @@ type StatsServiceServer interface {
 type UnimplementedStatsServiceServer struct{}
 
 func (UnimplementedStatsServiceServer) GetStats(context.Context, *GetStatsRequest) (*GetStatsResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetStats not implemented")
+	return nil, status.Error(codes.Unimplemented, "method GetStats not implemented")
 }
 
 func (UnimplementedStatsServiceServer) QueryStats(context.Context, *QueryStatsRequest) (*QueryStatsResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method QueryStats not implemented")
+	return nil, status.Error(codes.Unimplemented, "method QueryStats not implemented")
 }
 
 func (UnimplementedStatsServiceServer) GetSysStats(context.Context, *SysStatsRequest) (*SysStatsResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetSysStats not implemented")
+	return nil, status.Error(codes.Unimplemented, "method GetSysStats not implemented")
 }
 func (UnimplementedStatsServiceServer) mustEmbedUnimplementedStatsServiceServer() {}
 func (UnimplementedStatsServiceServer) testEmbeddedByValue()                      {}
@@ -105,7 +105,7 @@ type UnsafeStatsServiceServer interface {
 }
 
 func RegisterStatsServiceServer(s grpc.ServiceRegistrar, srv StatsServiceServer) {
-	// If the following call pancis, it indicates UnimplementedStatsServiceServer was
+	// If the following call panics, it indicates UnimplementedStatsServiceServer was
 	// embedded by pointer and is nil.  This will cause panics if an
 	// unimplemented method is ever invoked, so we test this at initialization
 	// time to prevent it from happening at runtime later due to I/O.

transport/v2raygrpc/stream_grpc.pb.go

@@ -61,7 +61,7 @@ type GunServiceServer interface {
 type UnimplementedGunServiceServer struct{}
 
 func (UnimplementedGunServiceServer) Tun(grpc.BidiStreamingServer[Hunk, Hunk]) error {
-	return status.Errorf(codes.Unimplemented, "method Tun not implemented")
+	return status.Error(codes.Unimplemented, "method Tun not implemented")
 }
 func (UnimplementedGunServiceServer) mustEmbedUnimplementedGunServiceServer() {}
 func (UnimplementedGunServiceServer) testEmbeddedByValue()                    {}
@@ -74,7 +74,7 @@ type UnsafeGunServiceServer interface {
 }
 
 func RegisterGunServiceServer(s grpc.ServiceRegistrar, srv GunServiceServer) {
-	// If the following call pancis, it indicates UnimplementedGunServiceServer was
+	// If the following call panics, it indicates UnimplementedGunServiceServer was
 	// embedded by pointer and is nil.  This will cause panics if an
 	// unimplemented method is ever invoked, so we test this at initialization
 	// time to prevent it from happening at runtime later due to I/O.