commit d643cad86bd3d5b0c12cd30bf6d00d4df56929e1 · kot.pink/core

spindle/config/config.go

···

       11
        
       	DBPath            string `env:"DB_PATH, default=spindle.db"`

     

       12
        
       	Hostname          string `env:"HOSTNAME, required"`

     

       13
        
       	JetstreamEndpoint string `env:"JETSTREAM_ENDPOINT, default=wss://jetstream1.us-west.bsky.network/subscribe"`

     

       0
        
       
     

       14
        
       }

     

       15
        
       

     

       16
        
       type Config struct {

···

       11
        
       	DBPath            string `env:"DB_PATH, default=spindle.db"`

     

       12
        
       	Hostname          string `env:"HOSTNAME, required"`

     

       13
        
       	JetstreamEndpoint string `env:"JETSTREAM_ENDPOINT, default=wss://jetstream1.us-west.bsky.network/subscribe"`

     

       14
       +
       	Dev               bool   `env:"DEV, default=false"`

     

       15
        
       }

     

       16
        
       

     

       17
        
       type Config struct {

+4 -3

spindle/db/db.go

···

       30
        
       			did text primary key

     

       31
        
       		);

     

       32
        
       

     

       33
       -
       		create table if not exists pipelines (

     

       34
       -
       			at_uri text not null,

     

       0
        
       
     

       35
        
       			status text not null,

     

       36
        
       

     

       37
        
       			-- only set if status is 'failed'

     
···

       42
        
       			updated_at timestamp not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),

     

       43
        
       			finished_at timestamp,

     

       44
        
       

     

       45
       -
       			primary key (at_uri)

     

       46
        
       		);

     

       47
        
       	`)

     

       48
        
       	if err != nil {

···

       30
        
       			did text primary key

     

       31
        
       		);

     

       32
        
       

     

       33
       +
       		create table if not exists pipeline_status (

     

       34
       +
       			rkey text not null,

     

       35
       +
       			pipeline text not null,

     

       36
        
       			status text not null,

     

       37
        
       

     

       38
        
       			-- only set if status is 'failed'

     
···

       43
        
       			updated_at timestamp not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),

     

       44
        
       			finished_at timestamp,

     

       45
        
       

     

       46
       +
       			primary key (rkey)

     

       47
        
       		);

     

       48
        
       	`)

     

       49
        
       	if err != nil {

+48 -42

spindle/db/pipelines.go

···

       8
        
       	"tangled.sh/tangled.sh/core/knotserver/notifier"

     

       9
        
       )

     

       10
        
       

     

       11
       -
       type PipelineStatus string

     

       12
        
       

     

       13
        
       var (

     

       14
       -
       	PipelinePending   PipelineStatus = "pending"

     

       15
       -
       	PipelineRunning   PipelineStatus = "running"

     

       16
       -
       	PipelineFailed    PipelineStatus = "failed"

     

       17
       -
       	PipelineTimeout   PipelineStatus = "timeout"

     

       18
       -
       	PipelineCancelled PipelineStatus = "cancelled"

     

       19
       -
       	PipelineSuccess   PipelineStatus = "success"

     

       20
        
       )

     

       21
        
       

     

       22
       -
       type Pipeline struct {

     

       23
       -
       	Rkey   string         `json:"rkey"`

     

       24
       -
       	Knot   string         `json:"knot"`

     

       25
       -
       	Status PipelineStatus `json:"status"`

     

       26
        
       

     

       27
        
       	// only if Failed

     

       28
        
       	Error    string `json:"error"`

     
···

       33
        
       	FinishedAt time.Time `json:"finished_at"`

     

       34
        
       }

     

       35
        
       

     

       36
       -
       func (p Pipeline) AsRecord() *tangled.PipelineStatus {

     

       37
        
       	exitCode64 := int64(p.ExitCode)

     

       38
        
       	finishedAt := p.FinishedAt.String()

     

       39
        
       

     

       40
        
       	return &tangled.PipelineStatus{

     

       41
       -
       		Pipeline: fmt.Sprintf("at://%s/%s", p.Knot, p.Rkey),

     

       42
       -
       		Status:   string(p.Status),

     

       0
        
       
     

       43
        
       

     

       44
        
       		ExitCode: &exitCode64,

     

       45
        
       		Error:    &p.Error,

     
···

       54
        
       	return fmt.Sprintf("at://%s/did:web:%s/%s", tangled.PipelineStatusNSID, knot, rkey)

     

       55
        
       }

     

       56
        
       

     

       57
       -
       func (db *DB) CreatePipeline(rkey, knot string, n *notifier.Notifier) error {

     

       58
        
       	_, err := db.Exec(`

     

       59
       -
       		insert into pipelines (at_uri, status)

     

       60
       -
       		values (?, ?)

     

       61
       -
       	`, pipelineAtUri(rkey, knot), PipelinePending)

     

       62
        
       

     

       63
        
       	if err != nil {

     

       64
        
       		return err

     
···

       67
        
       	return nil

     

       68
        
       }

     

       69
        
       

     

       70
       -
       func (db *DB) MarkPipelineRunning(rkey, knot string, n *notifier.Notifier) error {

     

       71
        
       	_, err := db.Exec(`

     

       72
       -
       			update pipelines

     

       73
        
       			set status = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')

     

       74
       -
       			where at_uri = ?

     

       75
       -
       		`, PipelineRunning, pipelineAtUri(rkey, knot))

     

       76
        
       

     

       77
        
       	if err != nil {

     

       78
        
       		return err

     
···

       81
        
       	return nil

     

       82
        
       }

     

       83
        
       

     

       84
       -
       func (db *DB) MarkPipelineFailed(rkey, knot string, exitCode int, errorMsg string, n *notifier.Notifier) error {

     

       85
        
       	_, err := db.Exec(`

     

       86
       -
       		update pipelines

     

       87
        
       		set status = ?,

     

       88
        
       		    exit_code = ?,

     

       89
        
       		    error = ?,

     

       90
        
       		    updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now'),

     

       91
        
       		    finished_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')

     

       92
       -
       		where at_uri = ?

     

       93
       -
       	`, PipelineFailed, exitCode, errorMsg, pipelineAtUri(rkey, knot))

     

       94
        
       	if err != nil {

     

       95
        
       		return err

     

       96
        
       	}

     
···

       98
        
       	return nil

     

       99
        
       }

     

       100
        
       

     

       101
       -
       func (db *DB) MarkPipelineTimeout(rkey, knot string, n *notifier.Notifier) error {

     

       102
        
       	_, err := db.Exec(`

     

       103
       -
       			update pipelines

     

       104
        
       			set status = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')

     

       105
       -
       			where at_uri = ?

     

       106
       -
       		`, PipelineTimeout, pipelineAtUri(rkey, knot))

     

       107
        
       	if err != nil {

     

       108
        
       		return err

     

       109
        
       	}

     
···

       111
        
       	return nil

     

       112
        
       }

     

       113
        
       

     

       114
       -
       func (db *DB) MarkPipelineSuccess(rkey, knot string, n *notifier.Notifier) error {

     

       115
        
       	_, err := db.Exec(`

     

       116
       -
       			update pipelines

     

       117
        
       			set status = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now'),

     

       118
        
       			finished_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')

     

       119
       -
       			where at_uri = ?

     

       120
       -
       		`, PipelineSuccess, pipelineAtUri(rkey, knot))

     

       121
        
       

     

       122
        
       	if err != nil {

     

       123
        
       		return err

     
···

       126
        
       	return nil

     

       127
        
       }

     

       128
        
       

     

       129
       -
       func (db *DB) GetPipeline(rkey, knot string) (Pipeline, error) {

     

       130
       -
       	var p Pipeline

     

       131
        
       	err := db.QueryRow(`

     

       132
        
       		select rkey, status, error, exit_code, started_at, updated_at, finished_at

     

       133
        
       		from pipelines

     

       134
       -
       		where at_uri = ?

     

       135
       -
       	`, pipelineAtUri(rkey, knot)).Scan(&p.Rkey, &p.Status, &p.Error, &p.ExitCode, &p.StartedAt, &p.UpdatedAt, &p.FinishedAt)

     

       136
        
       	return p, err

     

       137
        
       }

     

       138
        
       

     

       139
       -
       func (db *DB) GetPipelines(cursor string) ([]Pipeline, error) {

     

       140
        
       	whereClause := ""

     

       141
        
       	args := []any{}

     

       142
        
       	if cursor != "" {

     
···

       146
        
       

     

       147
        
       	query := fmt.Sprintf(`

     

       148
        
       		select rkey, status, error, exit_code, started_at, updated_at, finished_at

     

       149
       -
       		from pipelines

     

       150
        
       		%s

     

       151
        
       		order by rkey asc

     

       152
        
       		limit 100

     
···

       158
        
       	}

     

       159
        
       	defer rows.Close()

     

       160
        
       

     

       161
       -
       	var pipelines []Pipeline

     

       162
        
       	for rows.Next() {

     

       163
       -
       		var p Pipeline

     

       164
        
       		rows.Scan(&p.Rkey, &p.Status, &p.Error, &p.ExitCode, &p.StartedAt, &p.UpdatedAt, &p.FinishedAt)

     

       165
        
       		pipelines = append(pipelines, p)

     

       166
        
       	}

     

       167
        
       

     

       168
        
       	if err := rows.Err(); err != nil {

     

       169
        
       		return nil, err

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       170
        
       	}

     

       171
        
       

     

       172
        
       	return pipelines, nil

···

       8
        
       	"tangled.sh/tangled.sh/core/knotserver/notifier"

     

       9
        
       )

     

       10
        
       

     

       11
       +
       type PipelineRunStatus string

     

       12
        
       

     

       13
        
       var (

     

       14
       +
       	PipelinePending   PipelineRunStatus = "pending"

     

       15
       +
       	PipelineRunning   PipelineRunStatus = "running"

     

       16
       +
       	PipelineFailed    PipelineRunStatus = "failed"

     

       17
       +
       	PipelineTimeout   PipelineRunStatus = "timeout"

     

       18
       +
       	PipelineCancelled PipelineRunStatus = "cancelled"

     

       19
       +
       	PipelineSuccess   PipelineRunStatus = "success"

     

       20
        
       )

     

       21
        
       

     

       22
       +
       type PipelineStatus struct {

     

       23
       +
       	Rkey     string            `json:"rkey"`

     

       24
       +
       	Pipeline string            `json:"pipeline"`

     

       25
       +
       	Status   PipelineRunStatus `json:"status"`

     

       26
        
       

     

       27
        
       	// only if Failed

     

       28
        
       	Error    string `json:"error"`

     
···

       33
        
       	FinishedAt time.Time `json:"finished_at"`

     

       34
        
       }

     

       35
        
       

     

       36
       +
       func (p PipelineStatus) AsRecord() *tangled.PipelineStatus {

     

       37
        
       	exitCode64 := int64(p.ExitCode)

     

       38
        
       	finishedAt := p.FinishedAt.String()

     

       39
        
       

     

       40
        
       	return &tangled.PipelineStatus{

     

       41
       +
       		LexiconTypeID: tangled.PipelineStatusNSID,

     

       42
       +
       		Pipeline:      p.Pipeline,

     

       43
       +
       		Status:        string(p.Status),

     

       44
        
       

     

       45
        
       		ExitCode: &exitCode64,

     

       46
        
       		Error:    &p.Error,

     
···

       55
        
       	return fmt.Sprintf("at://%s/did:web:%s/%s", tangled.PipelineStatusNSID, knot, rkey)

     

       56
        
       }

     

       57
        
       

     

       58
       +
       func (db *DB) CreatePipeline(rkey, pipeline string, n *notifier.Notifier) error {

     

       59
        
       	_, err := db.Exec(`

     

       60
       +
       		insert into pipeline_status (rkey, status, pipeline)

     

       61
       +
       		values (?, ?, ?)

     

       62
       +
       	`, rkey, PipelinePending, pipeline)

     

       63
        
       

     

       64
        
       	if err != nil {

     

       65
        
       		return err

     
···

       68
        
       	return nil

     

       69
        
       }

     

       70
        
       

     

       71
       +
       func (db *DB) MarkPipelineRunning(rkey string, n *notifier.Notifier) error {

     

       72
        
       	_, err := db.Exec(`

     

       73
       +
       			update pipeline_status

     

       74
        
       			set status = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')

     

       75
       +
       			where rkey = ?

     

       76
       +
       		`, PipelineRunning, rkey)

     

       77
        
       

     

       78
        
       	if err != nil {

     

       79
        
       		return err

     
···

       82
        
       	return nil

     

       83
        
       }

     

       84
        
       

     

       85
       +
       func (db *DB) MarkPipelineFailed(rkey string, exitCode int, errorMsg string, n *notifier.Notifier) error {

     

       86
        
       	_, err := db.Exec(`

     

       87
       +
       		update pipeline_status

     

       88
        
       		set status = ?,

     

       89
        
       		    exit_code = ?,

     

       90
        
       		    error = ?,

     

       91
        
       		    updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now'),

     

       92
        
       		    finished_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')

     

       93
       +
       		where rkey = ?

     

       94
       +
       	`, PipelineFailed, exitCode, errorMsg, rkey)

     

       95
        
       	if err != nil {

     

       96
        
       		return err

     

       97
        
       	}

     
···

       99
        
       	return nil

     

       100
        
       }

     

       101
        
       

     

       102
       +
       func (db *DB) MarkPipelineTimeout(rkey string, n *notifier.Notifier) error {

     

       103
        
       	_, err := db.Exec(`

     

       104
       +
       			update pipeline_status

     

       105
        
       			set status = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')

     

       106
       +
       			where rkey = ?

     

       107
       +
       		`, PipelineTimeout, rkey)

     

       108
        
       	if err != nil {

     

       109
        
       		return err

     

       110
        
       	}

     
···

       112
        
       	return nil

     

       113
        
       }

     

       114
        
       

     

       115
       +
       func (db *DB) MarkPipelineSuccess(rkey string, n *notifier.Notifier) error {

     

       116
        
       	_, err := db.Exec(`

     

       117
       +
       			update pipeline_status

     

       118
        
       			set status = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now'),

     

       119
        
       			finished_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')

     

       120
       +
       			where rkey = ?

     

       121
       +
       		`, PipelineSuccess, rkey)

     

       122
        
       

     

       123
        
       	if err != nil {

     

       124
        
       		return err

     
···

       127
        
       	return nil

     

       128
        
       }

     

       129
        
       

     

       130
       +
       func (db *DB) GetPipelineStatus(rkey string) (PipelineStatus, error) {

     

       131
       +
       	var p PipelineStatus

     

       132
        
       	err := db.QueryRow(`

     

       133
        
       		select rkey, status, error, exit_code, started_at, updated_at, finished_at

     

       134
        
       		from pipelines

     

       135
       +
       		where rkey = ?

     

       136
       +
       	`, rkey).Scan(&p.Rkey, &p.Status, &p.Error, &p.ExitCode, &p.StartedAt, &p.UpdatedAt, &p.FinishedAt)

     

       137
        
       	return p, err

     

       138
        
       }

     

       139
        
       

     

       140
       +
       func (db *DB) GetPipelineStatusAsRecords(cursor string) ([]PipelineStatus, error) {

     

       141
        
       	whereClause := ""

     

       142
        
       	args := []any{}

     

       143
        
       	if cursor != "" {

     
···

       147
        
       

     

       148
        
       	query := fmt.Sprintf(`

     

       149
        
       		select rkey, status, error, exit_code, started_at, updated_at, finished_at

     

       150
       +
       		from pipeline_status

     

       151
        
       		%s

     

       152
        
       		order by rkey asc

     

       153
        
       		limit 100

     
···

       159
        
       	}

     

       160
        
       	defer rows.Close()

     

       161
        
       

     

       162
       +
       	var pipelines []PipelineStatus

     

       163
        
       	for rows.Next() {

     

       164
       +
       		var p PipelineStatus

     

       165
        
       		rows.Scan(&p.Rkey, &p.Status, &p.Error, &p.ExitCode, &p.StartedAt, &p.UpdatedAt, &p.FinishedAt)

     

       166
        
       		pipelines = append(pipelines, p)

     

       167
        
       	}

     

       168
        
       

     

       169
        
       	if err := rows.Err(); err != nil {

     

       170
        
       		return nil, err

     

       171
       +
       	}

     

       172
       +
       

     

       173
       +
       	records := []*tangled.PipelineStatus{}

     

       174
       +
       	for _, p := range pipelines {

     

       175
       +
       		records = append(records, p.AsRecord())

     

       176
        
       	}

     

       177
        
       

     

       178
        
       	return pipelines, nil

+2 -2

spindle/engine/engine.go

···

       47
        
       

     

       48
        
       // SetupPipeline sets up a new network for the pipeline, and possibly volumes etc.

     

       49
        
       // in the future. In here also goes other setup steps.

     

       50
       -
       func (e *Engine) SetupPipeline(ctx context.Context, pipeline *tangled.Pipeline, id string) error {

     

       51
        
       	e.l.Info("setting up pipeline", "pipeline", id)

     

       52
        
       

     

       53
        
       	_, err := e.docker.VolumeCreate(ctx, volume.CreateOptions{

     
···

       73
        
       		return err

     

       74
        
       	}

     

       75
        
       

     

       76
       -
       	err = e.db.CreatePipeline(id, e.n)

     

       77
        
       	return err

     

       78
        
       }

     

       79

···

       47
        
       

     

       48
        
       // SetupPipeline sets up a new network for the pipeline, and possibly volumes etc.

     

       49
        
       // in the future. In here also goes other setup steps.

     

       50
       +
       func (e *Engine) SetupPipeline(ctx context.Context, pipeline *tangled.Pipeline, atUri, id string) error {

     

       51
        
       	e.l.Info("setting up pipeline", "pipeline", id)

     

       52
        
       

     

       53
        
       	_, err := e.docker.VolumeCreate(ctx, volume.CreateOptions{

     
···

       73
        
       		return err

     

       74
        
       	}

     

       75
        
       

     

       76
       +
       	err = e.db.CreatePipeline(id, atUri, e.n)

     

       77
        
       	return err

     

       78
        
       }

     

       79

+19 -14

spindle/server.go

···

       70
        
       	go func() {

     

       71
        
       		logger.Info("starting event consumer")

     

       72
        
       		knotEventSource := knotclient.NewEventSource("localhost:5555")

     

       73
       -
       		ccfg := knotclient.ConsumerConfig{

     

       74
       -
       			Logger:      logger,

     

       75
       -
       			ProcessFunc: spindle.exec,

     

       76
       -
       		}

     

       0
        
       
     

       77
        
       		ccfg.AddEventSource(knotEventSource)

     

       78
        
       

     

       79
       -
       		ec := knotclient.NewEventConsumer(ccfg)

     

       80
        
       

     

       81
        
       		ec.Start(ctx)

     

       82
        
       	}()

     
···

       95
        
       }

     

       96
        
       

     

       97
        
       func (s *Spindle) exec(ctx context.Context, src knotclient.EventSource, msg knotclient.Message) error {

     

       98
       -
       	pipeline := tangled.Pipeline{}

     

       99
       -
       	err := json.Unmarshal(msg.EventJson, &pipeline)

     

       100
       -
       	if err != nil {

     

       101
       -
       		fmt.Println("error unmarshalling", err)

     

       102
       -
       		return err

     

       103
       -
       	}

     

       0
        
       
     

       104
        
       

     

       105
       -
       	if msg.Nsid == tangled.PipelineNSID {

     

       106
       -
       		err = s.eng.SetupPipeline(ctx, &pipeline, msg.Rkey)

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       107
        
       		if err != nil {

     

       108
        
       			return err

     

       109
        
       		}

     

       110
       -
       		err = s.eng.StartWorkflows(ctx, &pipeline, msg.Rkey)

     

       111
        
       		if err != nil {

     

       112
        
       			return err

     

       113
        
       		}

···

       70
        
       	go func() {

     

       71
        
       		logger.Info("starting event consumer")

     

       72
        
       		knotEventSource := knotclient.NewEventSource("localhost:5555")

     

       73
       +
       

     

       74
       +
       		ccfg := knotclient.NewConsumerConfig()

     

       75
       +
       		ccfg.Logger = logger

     

       76
       +
       		ccfg.Dev = cfg.Server.Dev

     

       77
       +
       		ccfg.ProcessFunc = spindle.exec

     

       78
        
       		ccfg.AddEventSource(knotEventSource)

     

       79
        
       

     

       80
       +
       		ec := knotclient.NewEventConsumer(*ccfg)

     

       81
        
       

     

       82
        
       		ec.Start(ctx)

     

       83
        
       	}()

     
···

       96
        
       }

     

       97
        
       

     

       98
        
       func (s *Spindle) exec(ctx context.Context, src knotclient.EventSource, msg knotclient.Message) error {

     

       99
       +
       	if msg.Nsid == tangled.PipelineNSID {

     

       100
       +
       		pipeline := tangled.Pipeline{}

     

       101
       +
       		err := json.Unmarshal(msg.EventJson, &pipeline)

     

       102
       +
       		if err != nil {

     

       103
       +
       			fmt.Println("error unmarshalling", err)

     

       104
       +
       			return err

     

       105
       +
       		}

     

       106
        
       

     

       107
       +
       		// this is a "fake" at uri for now

     

       108
       +
       		pipelineAtUri := fmt.Sprintf("at://%s/did:web:%s/%s", tangled.PipelineNSID, pipeline.TriggerMetadata.Repo.Knot, msg.Rkey)

     

       109
       +
       

     

       110
       +
       		rkey := TID()

     

       111
       +
       		err = s.eng.SetupPipeline(ctx, &pipeline, pipelineAtUri, rkey)

     

       112
        
       		if err != nil {

     

       113
        
       			return err

     

       114
        
       		}

     

       115
       +
       		err = s.eng.StartWorkflows(ctx, &pipeline, rkey)

     

       116
        
       		if err != nil {

     

       117
        
       			return err

     

       118
        
       		}

+3 -2

spindle/stream.go

···

       4
        
       	"net/http"

     

       5
        
       	"time"

     

       6
        
       

     

       0
        
       
     

       0
        
       
     

       7
        
       	"github.com/gorilla/websocket"

     

       8
       -
       	"golang.org/x/net/context"

     

       9
        
       )

     

       10
        
       

     

       11
        
       var upgrader = websocket.Upgrader{

     
···

       74
        
       }

     

       75
        
       

     

       76
        
       func (s *Spindle) streamPipelines(conn *websocket.Conn, cursor *string) error {

     

       77
       -
       	ops, err := s.db.GetPipelines(*cursor)

     

       78
        
       	if err != nil {

     

       79
        
       		s.l.Debug("err", "err", err)

     

       80
        
       		return err

···

       4
        
       	"net/http"

     

       5
        
       	"time"

     

       6
        
       

     

       7
       +
       	"context"

     

       8
       +
       

     

       9
        
       	"github.com/gorilla/websocket"

     

       0
        
       
     

       10
        
       )

     

       11
        
       

     

       12
        
       var upgrader = websocket.Upgrader{

     
···

       75
        
       }

     

       76
        
       

     

       77
        
       func (s *Spindle) streamPipelines(conn *websocket.Conn, cursor *string) error {

     

       78
       +
       	ops, err := s.db.GetPipelineStatusAsRecords(*cursor)

     

       79
        
       	if err != nil {

     

       80
        
       		s.l.Debug("err", "err", err)

     

       81
        
       		return err

spindle/tid.go

···

       1
       +
       package spindle

     

       2
       +
       

     

       3
       +
       import "github.com/bluesky-social/indigo/atproto/syntax"

     

       4
       +
       

     

       5
       +
       var TIDClock = syntax.NewTIDClock(0)

     

       6
       +
       

     

       7
       +
       func TID() string {

     

       8
       +
       	return TIDClock.Next().String()

     

       9
       +
       }