add StatsService.GetSysStats

app/stats/command/command.go

@@ -6,6 +6,8 @@ package command
 
 import (
 	"context"
+	"runtime"
+	"time"
 
 	grpc "google.golang.org/grpc"
 
@@ -18,11 +20,15 @@ import (
 
 // statsServer is an implementation of StatsService.
 type statsServer struct {
-	stats feature_stats.Manager
+	stats     feature_stats.Manager
+	startTime time.Time
 }
 
 func NewStatsServer(manager feature_stats.Manager) StatsServiceServer {
-	return &statsServer{stats: manager}
+	return &statsServer{
+		stats:     manager,
+		startTime: time.Now(),
+	}
 }
 
 func (s *statsServer) GetStats(ctx context.Context, request *GetStatsRequest) (*GetStatsResponse, error) {
@@ -76,6 +82,28 @@ func (s *statsServer) QueryStats(ctx context.Context, request *QueryStatsRequest
 	return response, nil
 }
 
+func (s *statsServer) GetSysStats(ctx context.Context, request *SysStatsRequest) (*SysStatsResponse, error) {
+	var rtm runtime.MemStats
+	runtime.ReadMemStats(&rtm)
+
+	uptime := time.Since(s.startTime)
+
+	response := &SysStatsResponse{
+		Uptime:       uint32(uptime.Seconds()),
+		NumGoroutine: uint32(runtime.NumGoroutine()),
+		Alloc:        rtm.Alloc,
+		TotalAlloc:   rtm.TotalAlloc,
+		Sys:          rtm.Sys,
+		Mallocs:      rtm.Mallocs,
+		Frees:        rtm.Frees,
+		LiveObjects:  rtm.Mallocs - rtm.Frees,
+		NumGC:        rtm.NumGC,
+		PauseTotalNs: rtm.PauseTotalNs,
+	}
+
+	return response, nil
+}
+
 type service struct {
 	statsManager feature_stats.Manager
 }

app/stats/command/command.pb.go

@@ -1,3 +1,6 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: v2ray.com/core/app/stats/command/command.proto
+
 package command
 
 import (
@@ -5,6 +8,8 @@ import (
 	fmt "fmt"
 	proto "github.com/golang/protobuf/proto"
 	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
 	math "math"
 )
 
@@ -240,6 +245,148 @@ func (m *QueryStatsResponse) GetStat() []*Stat {
 	return nil
 }
 
+type SysStatsRequest struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SysStatsRequest) Reset()         { *m = SysStatsRequest{} }
+func (m *SysStatsRequest) String() string { return proto.CompactTextString(m) }
+func (*SysStatsRequest) ProtoMessage()    {}
+func (*SysStatsRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_c902411c4948f26b, []int{5}
+}
+
+func (m *SysStatsRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SysStatsRequest.Unmarshal(m, b)
+}
+func (m *SysStatsRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SysStatsRequest.Marshal(b, m, deterministic)
+}
+func (m *SysStatsRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SysStatsRequest.Merge(m, src)
+}
+func (m *SysStatsRequest) XXX_Size() int {
+	return xxx_messageInfo_SysStatsRequest.Size(m)
+}
+func (m *SysStatsRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_SysStatsRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SysStatsRequest proto.InternalMessageInfo
+
+type SysStatsResponse struct {
+	NumGoroutine         uint32   `protobuf:"varint,1,opt,name=NumGoroutine,proto3" json:"NumGoroutine,omitempty"`
+	NumGC                uint32   `protobuf:"varint,2,opt,name=NumGC,proto3" json:"NumGC,omitempty"`
+	Alloc                uint64   `protobuf:"varint,3,opt,name=Alloc,proto3" json:"Alloc,omitempty"`
+	TotalAlloc           uint64   `protobuf:"varint,4,opt,name=TotalAlloc,proto3" json:"TotalAlloc,omitempty"`
+	Sys                  uint64   `protobuf:"varint,5,opt,name=Sys,proto3" json:"Sys,omitempty"`
+	Mallocs              uint64   `protobuf:"varint,6,opt,name=Mallocs,proto3" json:"Mallocs,omitempty"`
+	Frees                uint64   `protobuf:"varint,7,opt,name=Frees,proto3" json:"Frees,omitempty"`
+	LiveObjects          uint64   `protobuf:"varint,8,opt,name=LiveObjects,proto3" json:"LiveObjects,omitempty"`
+	PauseTotalNs         uint64   `protobuf:"varint,9,opt,name=PauseTotalNs,proto3" json:"PauseTotalNs,omitempty"`
+	Uptime               uint32   `protobuf:"varint,10,opt,name=Uptime,proto3" json:"Uptime,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SysStatsResponse) Reset()         { *m = SysStatsResponse{} }
+func (m *SysStatsResponse) String() string { return proto.CompactTextString(m) }
+func (*SysStatsResponse) ProtoMessage()    {}
+func (*SysStatsResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_c902411c4948f26b, []int{6}
+}
+
+func (m *SysStatsResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SysStatsResponse.Unmarshal(m, b)
+}
+func (m *SysStatsResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SysStatsResponse.Marshal(b, m, deterministic)
+}
+func (m *SysStatsResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SysStatsResponse.Merge(m, src)
+}
+func (m *SysStatsResponse) XXX_Size() int {
+	return xxx_messageInfo_SysStatsResponse.Size(m)
+}
+func (m *SysStatsResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_SysStatsResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SysStatsResponse proto.InternalMessageInfo
+
+func (m *SysStatsResponse) GetNumGoroutine() uint32 {
+	if m != nil {
+		return m.NumGoroutine
+	}
+	return 0
+}
+
+func (m *SysStatsResponse) GetNumGC() uint32 {
+	if m != nil {
+		return m.NumGC
+	}
+	return 0
+}
+
+func (m *SysStatsResponse) GetAlloc() uint64 {
+	if m != nil {
+		return m.Alloc
+	}
+	return 0
+}
+
+func (m *SysStatsResponse) GetTotalAlloc() uint64 {
+	if m != nil {
+		return m.TotalAlloc
+	}
+	return 0
+}
+
+func (m *SysStatsResponse) GetSys() uint64 {
+	if m != nil {
+		return m.Sys
+	}
+	return 0
+}
+
+func (m *SysStatsResponse) GetMallocs() uint64 {
+	if m != nil {
+		return m.Mallocs
+	}
+	return 0
+}
+
+func (m *SysStatsResponse) GetFrees() uint64 {
+	if m != nil {
+		return m.Frees
+	}
+	return 0
+}
+
+func (m *SysStatsResponse) GetLiveObjects() uint64 {
+	if m != nil {
+		return m.LiveObjects
+	}
+	return 0
+}
+
+func (m *SysStatsResponse) GetPauseTotalNs() uint64 {
+	if m != nil {
+		return m.PauseTotalNs
+	}
+	return 0
+}
+
+func (m *SysStatsResponse) GetUptime() uint32 {
+	if m != nil {
+		return m.Uptime
+	}
+	return 0
+}
+
 type Config struct {
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
@@ -250,7 +397,7 @@ func (m *Config) Reset()         { *m = Config{} }
 func (m *Config) String() string { return proto.CompactTextString(m) }
 func (*Config) ProtoMessage()    {}
 func (*Config) Descriptor() ([]byte, []int) {
-	return fileDescriptor_c902411c4948f26b, []int{5}
+	return fileDescriptor_c902411c4948f26b, []int{7}
 }
 
 func (m *Config) XXX_Unmarshal(b []byte) error {
@@ -277,6 +424,8 @@ func init() {
 	proto.RegisterType((*GetStatsResponse)(nil), "v2ray.core.app.stats.command.GetStatsResponse")
 	proto.RegisterType((*QueryStatsRequest)(nil), "v2ray.core.app.stats.command.QueryStatsRequest")
 	proto.RegisterType((*QueryStatsResponse)(nil), "v2ray.core.app.stats.command.QueryStatsResponse")
+	proto.RegisterType((*SysStatsRequest)(nil), "v2ray.core.app.stats.command.SysStatsRequest")
+	proto.RegisterType((*SysStatsResponse)(nil), "v2ray.core.app.stats.command.SysStatsResponse")
 	proto.RegisterType((*Config)(nil), "v2ray.core.app.stats.command.Config")
 }
 
@@ -285,28 +434,38 @@ func init() {
 }
 
 var fileDescriptor_c902411c4948f26b = []byte{
-	// 321 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x94, 0x92, 0xb1, 0x4e, 0xc3, 0x30,
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-	0x00,
+	// 488 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x94, 0x54, 0x5d, 0x6f, 0xd3, 0x30,
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+	0x25, 0xa8, 0x5c, 0x1b, 0x95, 0x04, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -323,6 +482,7 @@ const _ = grpc.SupportPackageIsVersion4
 type StatsServiceClient interface {
 	GetStats(ctx context.Context, in *GetStatsRequest, opts ...grpc.CallOption) (*GetStatsResponse, error)
 	QueryStats(ctx context.Context, in *QueryStatsRequest, opts ...grpc.CallOption) (*QueryStatsResponse, error)
+	GetSysStats(ctx context.Context, in *SysStatsRequest, opts ...grpc.CallOption) (*SysStatsResponse, error)
 }
 
 type statsServiceClient struct {
@@ -351,10 +511,34 @@ func (c *statsServiceClient) QueryStats(ctx context.Context, in *QueryStatsReque
 	return out, nil
 }
 
+func (c *statsServiceClient) GetSysStats(ctx context.Context, in *SysStatsRequest, opts ...grpc.CallOption) (*SysStatsResponse, error) {
+	out := new(SysStatsResponse)
+	err := c.cc.Invoke(ctx, "/v2ray.core.app.stats.command.StatsService/GetSysStats", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // StatsServiceServer is the server API for StatsService service.
 type StatsServiceServer interface {
 	GetStats(context.Context, *GetStatsRequest) (*GetStatsResponse, error)
 	QueryStats(context.Context, *QueryStatsRequest) (*QueryStatsResponse, error)
+	GetSysStats(context.Context, *SysStatsRequest) (*SysStatsResponse, error)
+}
+
+// UnimplementedStatsServiceServer can be embedded to have forward compatible implementations.
+type UnimplementedStatsServiceServer struct {
+}
+
+func (*UnimplementedStatsServiceServer) GetStats(ctx context.Context, req *GetStatsRequest) (*GetStatsResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetStats not implemented")
+}
+func (*UnimplementedStatsServiceServer) QueryStats(ctx context.Context, req *QueryStatsRequest) (*QueryStatsResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method QueryStats not implemented")
+}
+func (*UnimplementedStatsServiceServer) GetSysStats(ctx context.Context, req *SysStatsRequest) (*SysStatsResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetSysStats not implemented")
 }
 
 func RegisterStatsServiceServer(s *grpc.Server, srv StatsServiceServer) {
@@ -397,6 +581,24 @@ func _StatsService_QueryStats_Handler(srv interface{}, ctx context.Context, dec
 	return interceptor(ctx, in, info, handler)
 }
 
+func _StatsService_GetSysStats_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(SysStatsRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(StatsServiceServer).GetSysStats(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/v2ray.core.app.stats.command.StatsService/GetSysStats",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(StatsServiceServer).GetSysStats(ctx, req.(*SysStatsRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 var _StatsService_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "v2ray.core.app.stats.command.StatsService",
 	HandlerType: (*StatsServiceServer)(nil),
@@ -409,6 +611,10 @@ var _StatsService_serviceDesc = grpc.ServiceDesc{
 			MethodName: "QueryStats",
 			Handler:    _StatsService_QueryStats_Handler,
 		},
+		{
+			MethodName: "GetSysStats",
+			Handler:    _StatsService_GetSysStats_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "v2ray.com/core/app/stats/command/command.proto",

app/stats/command/command.proto

@@ -31,9 +31,26 @@ message QueryStatsResponse {
   repeated Stat stat = 1;
 }
 
+message SysStatsRequest {
+}
+
+message SysStatsResponse {
+  uint32 NumGoroutine = 1;
+  uint32 NumGC = 2;
+  uint64 Alloc = 3;
+  uint64 TotalAlloc = 4;
+  uint64 Sys = 5;
+  uint64 Mallocs = 6;
+  uint64 Frees = 7;
+  uint64 LiveObjects = 8;
+  uint64 PauseTotalNs = 9;
+  uint32 Uptime = 10;
+}
+
 service StatsService {
   rpc GetStats(GetStatsRequest) returns (GetStatsResponse) {}
   rpc QueryStats(QueryStatsRequest) returns (QueryStatsResponse) {}
+  rpc GetSysStats(SysStatsRequest) returns (SysStatsResponse) {}
 }
 
 message Config {}

infra/control/api.go

@@ -6,6 +6,7 @@ import (
 	"flag"
 	"fmt"
 	"strings"
+	"time"
 
 	"github.com/golang/protobuf/proto"
 	"google.golang.org/grpc"
@@ -35,6 +36,7 @@ func (c *ApiCommand) Description() Description {
 			"v2ctl api --server=127.0.0.1:8080 LoggerService.RestartLogger '' ",
 			"v2ctl api --server=127.0.0.1:8080 StatsService.QueryStats 'pattern: \"\" reset: false'",
 			"v2ctl api --server=127.0.0.1:8080 StatsService.GetStats 'name: \"inbound>>>statin>>>traffic>>>downlink\" reset: false'",
+			"v2ctl api --server=127.0.0.1:8080 StatsService.GetSysStats ''",
 		},
 	}
 }
@@ -48,12 +50,6 @@ func (c *ApiCommand) Execute(args []string) error {
 		return err
 	}
 
-	conn, err := grpc.Dial(*serverAddrPtr, grpc.WithInsecure(), grpc.WithBlock())
-	if err != nil {
-		return newError("failed to dial ", *serverAddrPtr).Base(err)
-	}
-	defer conn.Close()
-
 	unnamedArgs := fs.Args()
 	if len(unnamedArgs) < 2 {
 		return newError("service name or request not specified.")
@@ -65,7 +61,16 @@ func (c *ApiCommand) Execute(args []string) error {
 		return newError("unknown service: ", service)
 	}
 
-	response, err := handler(conn, method, unnamedArgs[1])
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+
+	conn, err := grpc.DialContext(ctx, *serverAddrPtr, grpc.WithInsecure(), grpc.WithBlock())
+	if err != nil {
+		return newError("failed to dial ", *serverAddrPtr).Base(err)
+	}
+	defer conn.Close()
+
+	response, err := handler(ctx, conn, method, unnamedArgs[1])
 	if err != nil {
 		return newError("failed to call service ", unnamedArgs[0]).Base(err)
 	}
@@ -84,14 +89,14 @@ func getServiceMethod(s string) (string, string) {
 	return service, method
 }
 
-type serviceHandler func(conn *grpc.ClientConn, method string, request string) (string, error)
+type serviceHandler func(ctx context.Context, conn *grpc.ClientConn, method string, request string) (string, error)
 
 var serivceHandlerMap = map[string]serviceHandler{
 	"statsservice":  callStatsService,
 	"loggerservice": callLogService,
 }
 
-func callLogService(conn *grpc.ClientConn, method string, request string) (string, error) {
+func callLogService(ctx context.Context, conn *grpc.ClientConn, method string, request string) (string, error) {
 	client := logService.NewLoggerServiceClient(conn)
 
 	switch strings.ToLower(method) {
@@ -100,7 +105,7 @@ func callLogService(conn *grpc.ClientConn, method string, request string) (strin
 		if err := proto.UnmarshalText(request, r); err != nil {
 			return "", err
 		}
-		resp, err := client.RestartLogger(context.Background(), r)
+		resp, err := client.RestartLogger(ctx, r)
 		if err != nil {
 			return "", err
 		}
@@ -110,7 +115,7 @@ func callLogService(conn *grpc.ClientConn, method string, request string) (strin
 	}
 }
 
-func callStatsService(conn *grpc.ClientConn, method string, request string) (string, error) {
+func callStatsService(ctx context.Context, conn *grpc.ClientConn, method string, request string) (string, error) {
 	client := statsService.NewStatsServiceClient(conn)
 
 	switch strings.ToLower(method) {
@@ -119,7 +124,7 @@ func callStatsService(conn *grpc.ClientConn, method string, request string) (str
 		if err := proto.UnmarshalText(request, r); err != nil {
 			return "", err
 		}
-		resp, err := client.GetStats(context.Background(), r)
+		resp, err := client.GetStats(ctx, r)
 		if err != nil {
 			return "", err
 		}
@@ -129,7 +134,15 @@ func callStatsService(conn *grpc.ClientConn, method string, request string) (str
 		if err := proto.UnmarshalText(request, r); err != nil {
 			return "", err
 		}
-		resp, err := client.QueryStats(context.Background(), r)
+		resp, err := client.QueryStats(ctx, r)
+		if err != nil {
+			return "", err
+		}
+		return proto.MarshalTextString(resp), nil
+	case "getsysstats":
+		// SysStatsRequest is an empty message
+		r := &statsService.SysStatsRequest{}
+		resp, err := client.GetSysStats(ctx, r)
 		if err != nil {
 			return "", err
 		}