How to use setInterval method of events Package

Best K6 code snippet using events.setInterval

events.go

Source:events.go

1// Package events implements setInterval, setTimeout and co. Not to be used, mostly for testing purposes2package events3import (4	"sync"5	"sync/atomic"6	"time"7	"github.com/dop251/goja"8	"go.k6.io/k6/js/modules"9)10// RootModule is the global module instance that will create module11// instances for each VU.12type RootModule struct{}13// Events represents an instance of the events module.14type Events struct {15	vu modules.VU16	timerStopCounter uint3217	timerStopsLock   sync.Mutex18	timerStops       map[uint32]chan struct{}19}20var (21	_ modules.Module   = &RootModule{}22	_ modules.Instance = &Events{}23)24// New returns a pointer to a new RootModule instance.25func New() *RootModule {26	return &RootModule{}27}28// NewModuleInstance implements the modules.Module interface to return29// a new instance for each VU.30func (*RootModule) NewModuleInstance(vu modules.VU) modules.Instance {31	return &Events{32		vu:         vu,33		timerStops: make(map[uint32]chan struct{}),34	}35}36// Exports returns the exports of the k6 module.37func (e *Events) Exports() modules.Exports {38	return modules.Exports{39		Named: map[string]interface{}{40			"setTimeout":    e.setTimeout,41			"clearTimeout":  e.clearTimeout,42			"setInterval":   e.setInterval,43			"clearInterval": e.clearInterval,44		},45	}46}47func noop() error { return nil }48func (e *Events) getTimerStopCh() (uint32, chan struct{}) {49	id := atomic.AddUint32(&e.timerStopCounter, 1)50	ch := make(chan struct{})51	e.timerStopsLock.Lock()52	e.timerStops[id] = ch53	e.timerStopsLock.Unlock()54	return id, ch55}56func (e *Events) stopTimerCh(id uint32) bool { //nolint:unparam57	e.timerStopsLock.Lock()58	defer e.timerStopsLock.Unlock()59	ch, ok := e.timerStops[id]60	if !ok {61		return false62	}63	delete(e.timerStops, id)64	close(ch)65	return true66}67func (e *Events) call(callback goja.Callable, args []goja.Value) error {68	// TODO: investigate, not sure GlobalObject() is always the correct value for `this`?69	_, err := callback(e.vu.Runtime().GlobalObject(), args...)70	return err71}72func (e *Events) setTimeout(callback goja.Callable, delay float64, args ...goja.Value) uint32 {73	runOnLoop := e.vu.RegisterCallback()74	id, stopCh := e.getTimerStopCh()75	if delay < 0 {76		delay = 077	}78	go func() {79		timer := time.NewTimer(time.Duration(delay * float64(time.Millisecond)))80		defer func() {81			e.stopTimerCh(id)82			if !timer.Stop() {83				<-timer.C84			}85		}()86		select {87		case <-timer.C:88			runOnLoop(func() error {89				return e.call(callback, args)90			})91		case <-stopCh:92			runOnLoop(noop)93		case <-e.vu.Context().Done():94			e.vu.State().Logger.Warnf("setTimeout %d was stopped because the VU iteration was interrupted", id)95			runOnLoop(noop)96		}97	}()98	return id99}100func (e *Events) clearTimeout(id uint32) {101	e.stopTimerCh(id)102}103func (e *Events) setInterval(callback goja.Callable, delay float64, args ...goja.Value) uint32 {104	runOnLoop := e.vu.RegisterCallback()105	id, stopCh := e.getTimerStopCh()106	go func() {107		ticker := time.NewTicker(time.Duration(delay * float64(time.Millisecond)))108		defer func() {109			e.stopTimerCh(id)110			ticker.Stop()111		}()112		for {113			select {114			case <-ticker.C:115				runOnLoop(func() error {116					runOnLoop = e.vu.RegisterCallback()117					return e.call(callback, args)118				})119			case <-stopCh:120				runOnLoop(noop)121				return122			case <-e.vu.Context().Done():123				e.vu.State().Logger.Warnf("setInterval %d was stopped because the VU iteration was interrupted", id)124				runOnLoop(noop)125				return126			}127		}128	}()129	return id130}131func (e *Events) clearInterval(id uint32) {132	e.stopTimerCh(id)133}...

setInterval

Using AI Code Generation

1import (2func main() {3	ticker := time.NewTicker(1 * time.Second)4	done := make(chan bool)5	go func() {6		for {7			select {8				fmt.Println("Tick at", t)9			}10		}11	}()12	time.Sleep(10 * time.Second)13	ticker.Stop()14	fmt.Println("Ticker stopped")15}

setInterval

Using AI Code Generation

1import (2func main() {3    c := cron.New()4    c.AddFunc("@every 10s", func() {5        fmt.Println("Every 10 seconds")6    })7    c.Start()8    time.Sleep(60 * time.Second)9}

setInterval

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    ticker := time.NewTicker(1 * time.Second)5    go func() {6        for t := range ticker.C {7            fmt.Println("Tick at", t)8        }9    }()10    time.Sleep(5 * time.Second)11    ticker.Stop()12    fmt.Println("Ticker stopped")13}

setInterval

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, 世界")4    ticker := time.NewTicker(1 * time.Second)5    quit := make(chan struct{})6    go func() {7        for {8            select {9                fmt.Println("Tick at", time.Now())10                ticker.Stop()11            }12        }13    }()14    time.Sleep(5 * time.Second)15    quit <- struct{}{}16    fmt.Println("Ticker stopped")17}18import (19func main() {20    fmt.Println("Hello, 世界")21    ticker := time.NewTicker(1 * time.Second)22    quit := make(chan struct{})23    go func() {24        for {25            select {26                fmt.Println("Tick at", time.Now())27                ticker.Stop()28            }29        }30    }()31    time.Sleep(5 * time.Second)32    quit <- struct{}{}33    fmt.Println("Ticker stopped")34}

setInterval

Using AI Code Generation

1import (2func main() {3	e := emitter.New()4	e.On("tick", func() {5		fmt.Println("tick")6	})7	e.On("tock", func() {8		fmt.Println("tock")9	})10	e.Once("tick", func() {11		fmt.Println("once")12	})13	e.Emit("tick")14	e.Emit("tock")

setInterval

Using AI Code Generation

1import (2func main() {3    for {4        fmt.Println("Hello World")5        time.Sleep(1 * time.Second)6    }7}8import (9func main() {10    go func() {11        time.Sleep(5 * time.Second)12        fmt.Println("Hello World")13    }()14    time.Sleep(10 * time.Second)15}16import (17func main() {18    <-time.After(5 * time.Second)19    fmt.Println("Hello World")20}21import (22func main() {23    timer := time.NewTimer(5 * time.Second)24    fmt.Println("Hello World")25}26import (27func main() {28    ticker := time.Tick(1 * time.Second)29    for {30        select {31            fmt.Println("Hello World")32        }33    }34}35import (36func main() {37    ticker := time.NewTicker(1 * time.Second)38    for {39        select {40            fmt.Println("Hello World")41        }42    }43}44import (45func main() {46    ticker := time.NewTicker(1 * time.Second)47    go func() {48        for {49            select {50                fmt.Println("Hello World")51            }52        }53    }()54    time.Sleep(5 * time.Second)55    ticker.Stop()56}57import (

setInterval

Using AI Code Generation

1import (2func main() {3    fmt.Println("Starting the application...")4    ticker := time.NewTicker(100 * time.Millisecond)5    go func() {6        for t := range ticker.C {7            fmt.Println("Tick at", t)8        }9    }()10    time.Sleep(1600 * time.Millisecond)11    ticker.Stop()12    fmt.Println("Ticker stopped")13}

setInterval

Using AI Code Generation

1import (2func main() {3 intChan := make(chan int)4 go func() {5 for {6 time.Sleep(time.Second)7 }8 }()

setInterval

Using AI Code Generation

1import (2func main() {3    c := cron.New()4    c.AddFunc("*/5 * * * * *", func() { fmt.Println("Every 5 seconds") })5    c.Start()6    time.Sleep(10 * time.Second)7}

setInterval

Using AI Code Generation

1import (2func main() {3    ticker := time.NewTicker(5 * time.Second)4    go func() {5        for t := range ticker.C {6            fmt.Println("Tick at", t)7        }8    }()9    time.Sleep(15 * time.Second)10    ticker.Stop()11    fmt.Println("Ticker stopped")12    fmt.Println(runtime.NumGoroutine())13}

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