Refactoring code

cmd/Open-IM-SDK-Core

@@ -1 +1 @@
-Subproject commit e43ec7d427a84702eea7a6aaa358a7a0a809019d
+Subproject commit bdb27fcff0e9785cb0f92d9d04bdafe544a04de0

cmd/test/main.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"Open_IM/pkg/utils"
+	"context"
+	"fmt"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+	"time"
+)
+
+type MongoMsg struct {
+	UID string
+	Msg []string
+}
+
+
+func main()  {
+	//"mongodb://%s:%s@%s/%s/?maxPoolSize=%d"
+	uri := "mongodb://user:pass@sample.host:27017/?maxPoolSize=20&w=majority"
+	DBAddress := "127.0.0.1:37017"
+	DBDatabase := "new-test-db"
+	Collection := "new-test-collection"
+	DBMaxPoolSize := 100
+	uri = fmt.Sprintf("mongodb://%s/%s/?maxPoolSize=%d",
+		DBAddress,DBDatabase,
+		DBMaxPoolSize)
+
+	mongoClient, err := mongo.Connect(context.TODO(), options.Client().ApplyURI(uri))
+	if err != nil {
+		panic(err)
+	}
+	filter := bson.M{"uid":"my_uid"}
+	ctx, _ := context.WithTimeout(context.Background(), 30*time.Second)
+	for i:=0; i < 2; i++{
+
+		if err = mongoClient.Database(DBDatabase).Collection(Collection).FindOneAndUpdate(ctx, filter,
+			bson.M{"$push": bson.M{"msg": utils.Int32ToString(int32(i))}}).Err(); err != nil{
+			fmt.Println("FindOneAndUpdate failed ", i, )
+			var mmsg MongoMsg
+			mmsg.UID = "my_uid"
+			mmsg.Msg = append(mmsg.Msg, utils.Int32ToString(int32(i)))
+			_, err := mongoClient.Database(DBDatabase).Collection(Collection).InsertOne(ctx, &mmsg)
+			if err != nil {
+				fmt.Println("insertone failed ", err.Error(), i)
+			} else{
+				fmt.Println("insertone ok ", i)
+			}
+
+		}else {
+			fmt.Println("FindOneAndUpdate ok ", i)
+		}
+
+	}
+
+	var mmsg MongoMsg
+
+	if  err = mongoClient.Database(DBDatabase).Collection(Collection).FindOne(ctx, filter).Decode(&mmsg); err != nil {
+		fmt.Println("findone failed ", err.Error())
+	}else{
+		fmt.Println("findone ok ", mmsg.UID)
+		for i, v:=range mmsg.Msg{
+			fmt.Println("find value: ", i, v)
+		}
+	}
+
+
+}

go.mod

@@ -45,6 +45,7 @@ require (
 	github.com/tencentyun/qcloud-cos-sts-sdk v0.0.0-20210325043845-84a0811633ca
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 // indirect
 	go.etcd.io/etcd v0.0.0-20200402134248-51bdeb39e698
+	go.mongodb.org/mongo-driver v1.8.3
 	golang.org/x/image v0.0.0-20210220032944-ac19c3e999fb
 	golang.org/x/net v0.0.0-20210917221730-978cfadd31cf
 	google.golang.org/grpc v1.40.0

pkg/base_info/conversation_api_struct.go

@@ -31,3 +31,18 @@ type SetReceiveMessageOptResp struct {
 	CommResp
 	ConversationOptResultList []*OptResult `json:"data"`
 }
+
+//type Conversation struct {
+//	OwnerUserID      string `gorm:"column:owner_user_id;primary_key;type:char(128)" json:"OwnerUserID"`
+//	ConversationID   string `gorm:"column:conversation_id;primary_key;type:char(128)" json:"conversationID"`
+//	ConversationType int32  `gorm:"column:conversation_type" json:"conversationType"`
+//	UserID           string `gorm:"column:user_id;type:char(64)" json:"userID"`
+//	GroupID          string `gorm:"column:group_id;type:char(128)" json:"groupID"`
+//	RecvMsgOpt       int32  `gorm:"column:recv_msg_opt" json:"recvMsgOpt"`
+//	UnreadCount      int32  `gorm:"column:unread_count" json:"unreadCount"`
+//	DraftTextTime    int64  `gorm:"column:draft_text_time" json:"draftTextTime"`
+//	IsPinned         bool   `gorm:"column:is_pinned" json:"isPinned"`
+//	AttachedInfo     string `gorm:"column:attached_info;type:varchar(1024)" json:"attachedInfo"`
+//	Ex               string `gorm:"column:ex;type:varchar(1024)" json:"ex"`
+//}
+

pkg/base_info/public_struct.go

@@ -16,6 +16,20 @@ type ApiUserInfo struct {
 	Ex          string `json:"ex" binding:"omitempty,max=1024"`
 }
 
+//type Conversation struct {
+//	OwnerUserID      string `gorm:"column:owner_user_id;primary_key;type:char(128)" json:"OwnerUserID"`
+//	ConversationID   string `gorm:"column:conversation_id;primary_key;type:char(128)" json:"conversationID"`
+//	ConversationType int32  `gorm:"column:conversation_type" json:"conversationType"`
+//	UserID           string `gorm:"column:user_id;type:char(64)" json:"userID"`
+//	GroupID          string `gorm:"column:group_id;type:char(128)" json:"groupID"`
+//	RecvMsgOpt       int32  `gorm:"column:recv_msg_opt" json:"recvMsgOpt"`
+//	UnreadCount      int32  `gorm:"column:unread_count" json:"unreadCount"`
+//	DraftTextTime    int64  `gorm:"column:draft_text_time" json:"draftTextTime"`
+//	IsPinned         bool   `gorm:"column:is_pinned" json:"isPinned"`
+//	AttachedInfo     string `gorm:"column:attached_info;type:varchar(1024)" json:"attachedInfo"`
+//	Ex               string `gorm:"column:ex;type:varchar(1024)" json:"ex"`
+//}
+
 type GroupAddMemberInfo struct {
 	UserID    string `json:"userID" binding:"required"`
 	RoleLevel int32  `json:"roleLevel" binding:"required"`

pkg/common/constant/constant.go

@@ -182,3 +182,5 @@ func GroupIsBanPrivateChat(status int32) bool {
 	}
 	return true
 }
+
+ const BigVersion = "v3"

pkg/common/db/model.go

@@ -3,9 +3,16 @@ package db
 import (
 	"Open_IM/pkg/common/config"
 	"Open_IM/pkg/common/log"
+	"context"
+	"fmt"
 	"github.com/garyburd/redigo/redis"
 	"gopkg.in/mgo.v2"
 	"time"
+
+	//"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+
 )
 
 var DB DataBases
@@ -14,6 +21,7 @@ type DataBases struct {
 	MysqlDB    mysqlDB
 	mgoSession *mgo.Session
 	redisPool  *redis.Pool
+	mongoClient *mongo.Client
 }
 
 func key(dbAddress, dbName string) string {
@@ -22,10 +30,21 @@ func key(dbAddress, dbName string) string {
 
 func init() {
 	var mgoSession *mgo.Session
+	var mongoClient *mongo.Client
 	var err1 error
 	//mysql init
 	initMysqlDB()
 	// mongo init
+	// "mongodb://sysop:moon@localhost/records"
+	// uri := "mongodb://user:pass@sample.host:27017/?maxPoolSize=20&w=majority"
+	uri := fmt.Sprintf("mongodb://%s:%s@%s/%s/?maxPoolSize=%d",
+		config.Config.Mongo.DBUserName, config.Config.Mongo.DBPassword,
+		config.Config.Mongo.DBAddress[0],config.Config.Mongo.DBDatabase,
+		config.Config.Mongo.DBMaxPoolSize)
+
+	mongoClient, err := mongo.Connect(context.TODO(), options.Client().ApplyURI(uri))
+
+
 	mgoDailInfo := &mgo.DialInfo{
 		Addrs:     config.Config.Mongo.DBAddress,
 		Direct:    config.Config.Mongo.DBDirect,
@@ -36,17 +55,19 @@ func init() {
 		Password:  config.Config.Mongo.DBPassword,
 		PoolLimit: config.Config.Mongo.DBMaxPoolSize,
 	}
-	mgoSession, err := mgo.DialWithInfo(mgoDailInfo)
+	mgoSession, err = mgo.DialWithInfo(mgoDailInfo)
-	if err != nil {
+
-		log.NewError("mgo init err", err.Error(), mgoDailInfo)
-	}
 	if err != nil {
+		log.NewError(" mongo.Connect  failed, try ", err.Error(), uri)
 		time.Sleep(time.Duration(30) * time.Second)
+		mongoClient, err1 = mongo.Connect(context.TODO(), options.Client().ApplyURI(uri))
 		mgoSession, err1 = mgo.DialWithInfo(mgoDailInfo)
 		if err1 != nil {
+			log.NewError(" mongo.Connect  failed, panic", err.Error(), uri)
 			panic(err1.Error())
 		}
 	}
+	DB.mongoClient = mongoClient
 	DB.mgoSession = mgoSession
 	DB.mgoSession.SetMode(mgo.Monotonic, true)
 	c := DB.mgoSession.DB(config.Config.Mongo.DBDatabase).C(cChat)
@@ -55,6 +76,7 @@ func init() {
 		panic(err.Error())
 	}
 
+
 	// redis pool init
 	DB.redisPool = &redis.Pool{
 		MaxIdle:     config.Config.Redis.DBMaxIdle,

pkg/common/db/mongoModel.go

@@ -6,10 +6,12 @@ import (
 	pbMsg "Open_IM/pkg/proto/chat"
 	open_im_sdk "Open_IM/pkg/proto/sdk_ws"
 	"Open_IM/pkg/utils"
+	"context"
 	"errors"
-	"github.com/garyburd/redigo/redis"
+	//"github.com/garyburd/redigo/redis"
 	"github.com/golang/protobuf/proto"
 	"gopkg.in/mgo.v2/bson"
+
 	"strconv"
 	"time"
 )
@@ -34,33 +36,35 @@ type GroupMember_x struct {
 }
 
 func (d *DataBases) GetMinSeqFromMongo(uid string) (MinSeq uint32, err error) {
-	var i, NB uint32
+	return 1, nil
-	var seqUid string
+	//var i, NB uint32
-	session := d.mgoSession.Clone()
+	//var seqUid string
-	if session == nil {
+	//session := d.mgoSession.Clone()
-		return MinSeq, errors.New("session == nil")
+	//if session == nil {
-	}
+	//	return MinSeq, errors.New("session == nil")
-	defer session.Close()
+	//}
-	c := session.DB(config.Config.Mongo.DBDatabase).C(cChat)
+	//defer session.Close()
-	MaxSeq, err := d.GetUserMaxSeq(uid)
+	//c := session.DB(config.Config.Mongo.DBDatabase).C(cChat)
-	if err != nil && err != redis.ErrNil {
+	//MaxSeq, err := d.GetUserMaxSeq(uid)
-		return MinSeq, err
+	//if err != nil && err != redis.ErrNil {
-	}
+	//	return MinSeq, err
-	NB = uint32(MaxSeq / singleGocMsgNum)
+	//}
-	for i = 0; i <= NB; i++ {
+	//NB = uint32(MaxSeq / singleGocMsgNum)
-		seqUid = indexGen(uid, i)
+	//for i = 0; i <= NB; i++ {
-		n, err := c.Find(bson.M{"uid": seqUid}).Count()
+	//	seqUid = indexGen(uid, i)
-		if err == nil && n != 0 {
+	//	n, err := c.Find(bson.M{"uid": seqUid}).Count()
-			if i == 0 {
+	//	if err == nil && n != 0 {
-				MinSeq = 1
+	//		if i == 0 {
-			} else {
+	//			MinSeq = 1
-				MinSeq = uint32(i * singleGocMsgNum)
+	//		} else {
-			}
+	//			MinSeq = uint32(i * singleGocMsgNum)
-			break
+	//		}
-		}
+	//		break
-	}
+	//	}
-	return MinSeq, nil
+	//}
+	//return MinSeq, nil
 }
+
 func (d *DataBases) GetMsgBySeqList(uid string, seqList []uint32, operationID string) (seqMsg []*open_im_sdk.MsgData, err error) {
 	var hasSeqList []uint32
 	singleCount := 0
@@ -115,6 +119,61 @@ func (d *DataBases) GetMsgBySeqList(uid string, seqList []uint32, operationID st
 	}
 	return seqMsg, nil
 }
+
+
+func (d *DataBases) GetMsgBySeqListMongo2(uid string, seqList []uint32, operationID string) (seqMsg []*open_im_sdk.MsgData, err error) {
+	var hasSeqList []uint32
+	singleCount := 0
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cChat)
+
+	m := func(uid string, seqList []uint32) map[string][]uint32 {
+		t := make(map[string][]uint32)
+		for i := 0; i < len(seqList); i++ {
+			seqUid := getSeqUid(uid, seqList[i])
+			if value, ok := t[seqUid]; !ok {
+				var temp []uint32
+				t[seqUid] = append(temp, seqList[i])
+			} else {
+				t[seqUid] = append(value, seqList[i])
+			}
+		}
+		return t
+	}(uid, seqList)
+	sChat := UserChat{}
+	for seqUid, value := range m {
+		if err = c.FindOne(ctx, bson.M{"uid": seqUid}).Decode(&sChat); err != nil {
+			log.NewError(operationID, "not find seqUid", seqUid, value, uid, seqList, err.Error())
+			continue
+		}
+		singleCount = 0
+		for i := 0; i < len(sChat.Msg); i++ {
+			msg := new(open_im_sdk.MsgData)
+			if err = proto.Unmarshal(sChat.Msg[i].Msg, msg); err != nil {
+				log.NewError(operationID, "Unmarshal err", seqUid, value, uid, seqList, err.Error())
+				return nil, err
+			}
+			if isContainInt32(msg.Seq, value) {
+				seqMsg = append(seqMsg, msg)
+				hasSeqList = append(hasSeqList, msg.Seq)
+				singleCount++
+				if singleCount == len(value) {
+					break
+				}
+			}
+		}
+	}
+	if len(hasSeqList) != len(seqList) {
+		var diff []uint32
+		diff = utils.Difference(hasSeqList, seqList)
+		exceptionMSg := genExceptionMessageBySeqList(diff)
+		seqMsg = append(seqMsg, exceptionMSg...)
+
+	}
+	return seqMsg, nil
+}
+
+
 func genExceptionMessageBySeqList(seqList []uint32) (exceptionMsg []*open_im_sdk.MsgData) {
 	for _, v := range seqList {
 		msg := new(open_im_sdk.MsgData)
@@ -124,6 +183,37 @@ func genExceptionMessageBySeqList(seqList []uint32) (exceptionMsg []*open_im_sdk
 	return exceptionMsg
 }
 
+func (d *DataBases) SaveUserChatMongo2(uid string, sendTime int64, m *pbMsg.MsgDataToDB) error {
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cChat)
+	newTime := getCurrentTimestampByMill()
+	operationID := ""
+	seqUid := getSeqUid(uid, m.MsgData.Seq)
+	filter := bson.M{"uid": seqUid}
+	var err error
+	sMsg := MsgInfo{}
+	sMsg.SendTime = sendTime
+	if sMsg.Msg, err = proto.Marshal(m.MsgData); err != nil {
+		return  utils.Wrap(err,"")
+	}
+	err = c.FindOneAndUpdate(ctx, filter, bson.M{"$push": bson.M{"msg": sMsg}}).Err()
+	log.NewDebug(operationID, "get mgoSession cost time", getCurrentTimestampByMill()-newTime)
+	if err != nil {
+		sChat := UserChat{}
+		sChat.UID = seqUid
+		sChat.Msg = append(sChat.Msg, sMsg)
+		if _, err = c.InsertOne(ctx, &sChat) ; err != nil{
+			log.NewDebug(operationID, "InsertOne failed", filter)
+			return utils.Wrap(err, "")
+		}
+	}else{
+		log.NewDebug(operationID, "FindOneAndUpdate ok", filter)
+	}
+
+	log.NewDebug(operationID, "find mgo uid cost time", getCurrentTimestampByMill()-newTime)
+	return nil
+}
+
 func (d *DataBases) SaveUserChat(uid string, sendTime int64, m *pbMsg.MsgDataToDB) error {
 	var seqUid string
 	newTime := getCurrentTimestampByMill()
@@ -163,115 +253,137 @@ func (d *DataBases) SaveUserChat(uid string, sendTime int64, m *pbMsg.MsgDataToD
 	return nil
 }
 
-func (d *DataBases) DelUserChat(uid string) error {
-	session := d.mgoSession.Clone()
-	if session == nil {
-		return errors.New("session == nil")
-	}
-	defer session.Close()
 
-	c := session.DB(config.Config.Mongo.DBDatabase).C(cChat)
+func (d *DataBases) DelUserChat(uid string) error {
+	return nil
+	//session := d.mgoSession.Clone()
+	//if session == nil {
+	//	return errors.New("session == nil")
+	//}
+	//defer session.Close()
+	//
+	//c := session.DB(config.Config.Mongo.DBDatabase).C(cChat)
+	//
+	//delTime := time.Now().Unix() - int64(config.Config.Mongo.DBRetainChatRecords)*24*3600
+	//if err := c.Update(bson.M{"uid": uid}, bson.M{"$pull": bson.M{"msg": bson.M{"sendtime": bson.M{"$lte": delTime}}}}); err != nil {
+	//	return err
+	//}
+	//
+	//return nil
+}
+
+
+func (d *DataBases) DelUserChatMongo2(uid string) error {
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cChat)
+	filter := bson.M{"uid": uid}
 
 	delTime := time.Now().Unix() - int64(config.Config.Mongo.DBRetainChatRecords)*24*3600
-	if err := c.Update(bson.M{"uid": uid}, bson.M{"$pull": bson.M{"msg": bson.M{"sendtime": bson.M{"$lte": delTime}}}}); err != nil {
+	if _, err := c.UpdateOne(ctx, filter, bson.M{"$pull": bson.M{"msg": bson.M{"sendtime": bson.M{"$lte": delTime}}}}); err != nil {
-		return err
+		return utils.Wrap(err, "")
 	}
-
 	return nil
 }
 
+
+
 func (d *DataBases) MgoUserCount() (int, error) {
-	session := d.mgoSession.Clone()
+	return 0, nil
-	if session == nil {
+	//session := d.mgoSession.Clone()
-		return 0, errors.New("session == nil")
+	//if session == nil {
-	}
+	//	return 0, errors.New("session == nil")
-	defer session.Close()
+	//}
-
+	//defer session.Close()
-	c := session.DB(config.Config.Mongo.DBDatabase).C(cChat)
+	//
-
+	//c := session.DB(config.Config.Mongo.DBDatabase).C(cChat)
-	return c.Find(nil).Count()
+	//
+	//return c.Find(nil).Count()
 }
 
 func (d *DataBases) MgoSkipUID(count int) (string, error) {
-	session := d.mgoSession.Clone()
+	return "", nil
-	if session == nil {
+	//session := d.mgoSession.Clone()
-		return "", errors.New("session == nil")
+	//if session == nil {
-	}
+	//	return "", errors.New("session == nil")
-	defer session.Close()
+	//}
-
+	//defer session.Close()
-	c := session.DB(config.Config.Mongo.DBDatabase).C(cChat)
+	//
-
+	//c := session.DB(config.Config.Mongo.DBDatabase).C(cChat)
-	sChat := UserChat{}
+	//
-	c.Find(nil).Skip(count).Limit(1).One(&sChat)
+	//sChat := UserChat{}
-	return sChat.UID, nil
+	//c.Find(nil).Skip(count).Limit(1).One(&sChat)
+	//return sChat.UID, nil
 }
 
 func (d *DataBases) GetGroupMember(groupID string) []string {
-	groupInfo := GroupMember_x{}
+	return nil
-	groupInfo.GroupID = groupID
+	//groupInfo := GroupMember_x{}
-	groupInfo.UIDList = make([]string, 0)
+	//groupInfo.GroupID = groupID
-
+	//groupInfo.UIDList = make([]string, 0)
-	session := d.mgoSession.Clone()
+	//
-	if session == nil {
+	//session := d.mgoSession.Clone()
-		return groupInfo.UIDList
+	//if session == nil {
-	}
+	//	return groupInfo.UIDList
-	defer session.Close()
+	//}
-
+	//defer session.Close()
-	c := session.DB(config.Config.Mongo.DBDatabase).C(cGroup)
+	//
-
+	//c := session.DB(config.Config.Mongo.DBDatabase).C(cGroup)
-	if err := c.Find(bson.M{"groupid": groupInfo.GroupID}).One(&groupInfo); err != nil {
+	//
-		return groupInfo.UIDList
+	//if err := c.Find(bson.M{"groupid": groupInfo.GroupID}).One(&groupInfo); err != nil {
-	}
+	//	return groupInfo.UIDList
-
+	//}
-	return groupInfo.UIDList
+	//
+	//return groupInfo.UIDList
 }
 
 func (d *DataBases) AddGroupMember(groupID, uid string) error {
-	session := d.mgoSession.Clone()
-	if session == nil {
-		return errors.New("session == nil")
-	}
-	defer session.Close()
-
-	c := session.DB(config.Config.Mongo.DBDatabase).C(cGroup)
-
-	n, err := c.Find(bson.M{"groupid": groupID}).Count()
-	if err != nil {
-		return err
-	}
-
-	if n == 0 {
-		groupInfo := GroupMember_x{}
-		groupInfo.GroupID = groupID
-		groupInfo.UIDList = append(groupInfo.UIDList, uid)
-		err = c.Insert(&groupInfo)
-		if err != nil {
-			return err
-		}
-	} else {
-		err = c.Update(bson.M{"groupid": groupID}, bson.M{"$addToSet": bson.M{"uidlist": uid}})
-		if err != nil {
-			return err
-		}
-	}
-
 	return nil
+	//session := d.mgoSession.Clone()
+	//if session == nil {
+	//	return errors.New("session == nil")
+	//}
+	//defer session.Close()
+	//
+	//c := session.DB(config.Config.Mongo.DBDatabase).C(cGroup)
+	//
+	//n, err := c.Find(bson.M{"groupid": groupID}).Count()
+	//if err != nil {
+	//	return err
+	//}
+	//
+	//if n == 0 {
+	//	groupInfo := GroupMember_x{}
+	//	groupInfo.GroupID = groupID
+	//	groupInfo.UIDList = append(groupInfo.UIDList, uid)
+	//	err = c.Insert(&groupInfo)
+	//	if err != nil {
+	//		return err
+	//	}
+	//} else {
+	//	err = c.Update(bson.M{"groupid": groupID}, bson.M{"$addToSet": bson.M{"uidlist": uid}})
+	//	if err != nil {
+	//		return err
+	//	}
+	//}
+	//
+	//return nil
 }
 
 func (d *DataBases) DelGroupMember(groupID, uid string) error {
-	session := d.mgoSession.Clone()
-	if session == nil {
-		return errors.New("session == nil")
-	}
-	defer session.Close()
-
-	c := session.DB(config.Config.Mongo.DBDatabase).C(cGroup)
-
-	if err := c.Update(bson.M{"groupid": groupID}, bson.M{"$pull": bson.M{"uidlist": uid}}); err != nil {
-		return err
-	}
-
 	return nil
+	//session := d.mgoSession.Clone()
+	//if session == nil {
+	//	return errors.New("session == nil")
+	//}
+	//defer session.Close()
+	//
+	//c := session.DB(config.Config.Mongo.DBDatabase).C(cGroup)
+	//
+	//if err := c.Update(bson.M{"groupid": groupID}, bson.M{"$pull": bson.M{"uidlist": uid}}); err != nil {
+	//	return err
+	//}
+	//
+	//return nil
 }
 
 func getCurrentTimestampByMill() int64 {