How to use Stop method of output Package

Best K6 code snippet using output.Stop

check.go

Source:check.go Github

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...72 c.stop = false73 c.stopCh = make(chan struct{})74 go c.run()75}76// Stop is used to stop a check monitor.77func (c *CheckMonitor) Stop() {78 c.stopLock.Lock()79 defer c.stopLock.Unlock()80 if !c.stop {81 c.stop = true82 close(c.stopCh)83 }84}85// run is invoked by a goroutine to run until Stop() is called86func (c *CheckMonitor) run() {87 // Get the randomized initial pause time88 initialPauseTime := lib.RandomStagger(c.Interval)89 next := time.After(initialPauseTime)90 for {91 select {92 case <-next:93 c.check()94 next = time.After(c.Interval)95 case <-c.stopCh:96 return97 }98 }99}100// check is invoked periodically to perform the script check101func (c *CheckMonitor) check() {102 // Create the command103 var cmd *osexec.Cmd104 var err error105 if len(c.ScriptArgs) > 0 {106 cmd, err = exec.Subprocess(c.ScriptArgs)107 } else {108 cmd, err = exec.Script(c.Script)109 }110 if err != nil {111 c.Logger.Error("Check failed to setup",112 "check", c.CheckID.String(),113 "error", err,114 )115 c.Notify.UpdateCheck(c.CheckID, api.HealthCritical, err.Error())116 return117 }118 // Collect the output119 output, _ := circbuf.NewBuffer(int64(c.OutputMaxSize))120 cmd.Stdout = output121 cmd.Stderr = output122 exec.SetSysProcAttr(cmd)123 truncateAndLogOutput := func() string {124 outputStr := string(output.Bytes())125 if output.TotalWritten() > output.Size() {126 outputStr = fmt.Sprintf("Captured %d of %d bytes\n...\n%s",127 output.Size(), output.TotalWritten(), outputStr)128 }129 c.Logger.Trace("Check output",130 "check", c.CheckID.String(),131 "output", outputStr,132 )133 return outputStr134 }135 // Start the check136 if err := cmd.Start(); err != nil {137 c.Logger.Error("Check failed to invoke",138 "check", c.CheckID.String(),139 "error", err,140 )141 c.Notify.UpdateCheck(c.CheckID, api.HealthCritical, err.Error())142 return143 }144 // Wait for the check to complete145 waitCh := make(chan error, 1)146 go func() {147 waitCh <- cmd.Wait()148 }()149 timeout := 30 * time.Second150 if c.Timeout > 0 {151 timeout = c.Timeout152 }153 select {154 case <-time.After(timeout):155 if err := exec.KillCommandSubtree(cmd); err != nil {156 c.Logger.Warn("Check failed to kill after timeout",157 "check", c.CheckID.String(),158 "error", err,159 )160 }161 msg := fmt.Sprintf("Timed out (%s) running check", timeout.String())162 c.Logger.Warn("Timed out running check",163 "check", c.CheckID.String(),164 "timeout", timeout.String(),165 )166 outputStr := truncateAndLogOutput()167 if len(outputStr) > 0 {168 msg += "\n\n" + outputStr169 }170 c.Notify.UpdateCheck(c.CheckID, api.HealthCritical, msg)171 // Now wait for the process to exit so we never start another172 // instance concurrently.173 <-waitCh174 return175 case err = <-waitCh:176 // The process returned before the timeout, proceed normally177 }178 // Check if the check passed179 outputStr := truncateAndLogOutput()180 if err == nil {181 c.StatusHandler.updateCheck(c.CheckID, api.HealthPassing, outputStr)182 return183 }184 // If the exit code is 1, set check as warning185 exitErr, ok := err.(*osexec.ExitError)186 if ok {187 if status, ok := exitErr.Sys().(syscall.WaitStatus); ok {188 code := status.ExitStatus()189 if code == 1 {190 c.StatusHandler.updateCheck(c.CheckID, api.HealthWarning, outputStr)191 return192 }193 }194 }195 // Set the health as critical196 c.StatusHandler.updateCheck(c.CheckID, api.HealthCritical, outputStr)197}198// CheckTTL is used to apply a TTL to check status,199// and enables clients to set the status of a check200// but upon the TTL expiring, the check status is201// automatically set to critical.202type CheckTTL struct {203 Notify CheckNotifier204 CheckID structs.CheckID205 ServiceID structs.ServiceID206 TTL time.Duration207 Logger hclog.Logger208 timer *time.Timer209 lastOutput string210 lastOutputLock sync.RWMutex211 stop bool212 stopCh chan struct{}213 stopLock sync.Mutex214 OutputMaxSize int215}216// Start is used to start a check ttl, runs until Stop()217func (c *CheckTTL) Start() {218 c.stopLock.Lock()219 defer c.stopLock.Unlock()220 if c.OutputMaxSize < 1 {221 c.OutputMaxSize = DefaultBufSize222 }223 c.stop = false224 c.stopCh = make(chan struct{})225 c.timer = time.NewTimer(c.TTL)226 go c.run()227}228// Stop is used to stop a check ttl.229func (c *CheckTTL) Stop() {230 c.stopLock.Lock()231 defer c.stopLock.Unlock()232 if !c.stop {233 c.timer.Stop()234 c.stop = true235 close(c.stopCh)236 }237}238// run is used to handle TTL expiration and to update the check status239func (c *CheckTTL) run() {240 for {241 select {242 case <-c.timer.C:243 c.Logger.Warn("Check missed TTL, is now critical",244 "check", c.CheckID.String(),245 )246 c.Notify.UpdateCheck(c.CheckID, api.HealthCritical, c.getExpiredOutput())247 case <-c.stopCh:248 return249 }250 }251}252// getExpiredOutput formats the output for the case when the TTL is expired.253func (c *CheckTTL) getExpiredOutput() string {254 c.lastOutputLock.RLock()255 defer c.lastOutputLock.RUnlock()256 const prefix = "TTL expired"257 if c.lastOutput == "" {258 return prefix259 }260 return fmt.Sprintf("%s (last output before timeout follows): %s", prefix, c.lastOutput)261}262// SetStatus is used to update the status of the check,263// and to renew the TTL. If expired, TTL is restarted.264// output is returned (might be truncated)265func (c *CheckTTL) SetStatus(status, output string) string {266 c.Logger.Debug("Check status updated",267 "check", c.CheckID.String(),268 "status", status,269 )270 total := len(output)271 if total > c.OutputMaxSize {272 output = fmt.Sprintf("%s ... (captured %d of %d bytes)",273 output[:c.OutputMaxSize], c.OutputMaxSize, total)274 }275 c.Notify.UpdateCheck(c.CheckID, status, output)276 // Store the last output so we can retain it if the TTL expires.277 c.lastOutputLock.Lock()278 c.lastOutput = output279 c.lastOutputLock.Unlock()280 c.timer.Reset(c.TTL)281 return output282}283// CheckHTTP is used to periodically make an HTTP request to284// determine the health of a given check.285// The check is passing if the response code is 2XX.286// The check is warning if the response code is 429.287// The check is critical if the response code is anything else288// or if the request returns an error289// Supports failures_before_critical and success_before_passing.290type CheckHTTP struct {291 CheckID structs.CheckID292 ServiceID structs.ServiceID293 HTTP string294 Header map[string][]string295 Method string296 Body string297 Interval time.Duration298 Timeout time.Duration299 Logger hclog.Logger300 TLSClientConfig *tls.Config301 OutputMaxSize int302 StatusHandler *StatusHandler303 httpClient *http.Client304 stop bool305 stopCh chan struct{}306 stopLock sync.Mutex307 // Set if checks are exposed through Connect proxies308 // If set, this is the target of check()309 ProxyHTTP string310}311func (c *CheckHTTP) CheckType() structs.CheckType {312 return structs.CheckType{313 CheckID: c.CheckID.ID,314 HTTP: c.HTTP,315 Method: c.Method,316 Body: c.Body,317 Header: c.Header,318 Interval: c.Interval,319 ProxyHTTP: c.ProxyHTTP,320 Timeout: c.Timeout,321 OutputMaxSize: c.OutputMaxSize,322 }323}324// Start is used to start an HTTP check.325// The check runs until stop is called326func (c *CheckHTTP) Start() {327 c.stopLock.Lock()328 defer c.stopLock.Unlock()329 if c.httpClient == nil {330 // Create the transport. We disable HTTP Keep-Alive's to prevent331 // failing checks due to the keepalive interval.332 trans := cleanhttp.DefaultTransport()333 trans.DisableKeepAlives = true334 // Take on the supplied TLS client config.335 trans.TLSClientConfig = c.TLSClientConfig336 // Create the HTTP client.337 c.httpClient = &http.Client{338 Timeout: 10 * time.Second,339 Transport: trans,340 }341 if c.Timeout > 0 {342 c.httpClient.Timeout = c.Timeout343 }344 if c.OutputMaxSize < 1 {345 c.OutputMaxSize = DefaultBufSize346 }347 }348 c.stop = false349 c.stopCh = make(chan struct{})350 go c.run()351}352// Stop is used to stop an HTTP check.353func (c *CheckHTTP) Stop() {354 c.stopLock.Lock()355 defer c.stopLock.Unlock()356 if !c.stop {357 c.stop = true358 close(c.stopCh)359 }360}361// run is invoked by a goroutine to run until Stop() is called362func (c *CheckHTTP) run() {363 // Get the randomized initial pause time364 initialPauseTime := lib.RandomStagger(c.Interval)365 next := time.After(initialPauseTime)366 for {367 select {368 case <-next:369 c.check()370 next = time.After(c.Interval)371 case <-c.stopCh:372 return373 }374 }375}376// check is invoked periodically to perform the HTTP check377func (c *CheckHTTP) check() {378 method := c.Method379 if method == "" {380 method = "GET"381 }382 target := c.HTTP383 if c.ProxyHTTP != "" {384 target = c.ProxyHTTP385 }386 bodyReader := strings.NewReader(c.Body)387 req, err := http.NewRequest(method, target, bodyReader)388 if err != nil {389 c.StatusHandler.updateCheck(c.CheckID, api.HealthCritical, err.Error())390 return391 }392 req.Header = http.Header(c.Header)393 // this happens during testing but not in prod394 if req.Header == nil {395 req.Header = make(http.Header)396 }397 if host := req.Header.Get("Host"); host != "" {398 req.Host = host399 }400 if req.Header.Get("User-Agent") == "" {401 req.Header.Set("User-Agent", UserAgent)402 }403 if req.Header.Get("Accept") == "" {404 req.Header.Set("Accept", "text/plain, text/*, */*")405 }406 resp, err := c.httpClient.Do(req)407 if err != nil {408 c.StatusHandler.updateCheck(c.CheckID, api.HealthCritical, err.Error())409 return410 }411 defer resp.Body.Close()412 // Read the response into a circular buffer to limit the size413 output, _ := circbuf.NewBuffer(int64(c.OutputMaxSize))414 if _, err := io.Copy(output, resp.Body); err != nil {415 c.Logger.Warn("Check error while reading body",416 "check", c.CheckID.String(),417 "error", err,418 )419 }420 // Format the response body421 result := fmt.Sprintf("HTTP %s %s: %s Output: %s", method, target, resp.Status, output.String())422 if resp.StatusCode >= 200 && resp.StatusCode <= 299 {423 // PASSING (2xx)424 c.StatusHandler.updateCheck(c.CheckID, api.HealthPassing, result)425 } else if resp.StatusCode == 429 {426 // WARNING427 // 429 Too Many Requests (RFC 6585)428 // The user has sent too many requests in a given amount of time.429 c.StatusHandler.updateCheck(c.CheckID, api.HealthWarning, result)430 } else {431 // CRITICAL432 c.StatusHandler.updateCheck(c.CheckID, api.HealthCritical, result)433 }434}435// CheckTCP is used to periodically make an TCP/UDP connection to436// determine the health of a given check.437// The check is passing if the connection succeeds438// The check is critical if the connection returns an error439// Supports failures_before_critical and success_before_passing.440type CheckTCP struct {441 CheckID structs.CheckID442 ServiceID structs.ServiceID443 TCP string444 Interval time.Duration445 Timeout time.Duration446 Logger hclog.Logger447 StatusHandler *StatusHandler448 dialer *net.Dialer449 stop bool450 stopCh chan struct{}451 stopLock sync.Mutex452}453// Start is used to start a TCP check.454// The check runs until stop is called455func (c *CheckTCP) Start() {456 c.stopLock.Lock()457 defer c.stopLock.Unlock()458 if c.dialer == nil {459 // Create the socket dialer460 c.dialer = &net.Dialer{461 Timeout: 10 * time.Second,462 DualStack: true,463 }464 if c.Timeout > 0 {465 c.dialer.Timeout = c.Timeout466 }467 }468 c.stop = false469 c.stopCh = make(chan struct{})470 go c.run()471}472// Stop is used to stop a TCP check.473func (c *CheckTCP) Stop() {474 c.stopLock.Lock()475 defer c.stopLock.Unlock()476 if !c.stop {477 c.stop = true478 close(c.stopCh)479 }480}481// run is invoked by a goroutine to run until Stop() is called482func (c *CheckTCP) run() {483 // Get the randomized initial pause time484 initialPauseTime := lib.RandomStagger(c.Interval)485 next := time.After(initialPauseTime)486 for {487 select {488 case <-next:489 c.check()490 next = time.After(c.Interval)491 case <-c.stopCh:492 return493 }494 }495}496// check is invoked periodically to perform the TCP check497func (c *CheckTCP) check() {498 conn, err := c.dialer.Dial(`tcp`, c.TCP)499 if err != nil {500 c.Logger.Warn("Check socket connection failed",501 "check", c.CheckID.String(),502 "error", err,503 )504 c.StatusHandler.updateCheck(c.CheckID, api.HealthCritical, err.Error())505 return506 }507 conn.Close()508 c.StatusHandler.updateCheck(c.CheckID, api.HealthPassing, fmt.Sprintf("TCP connect %s: Success", c.TCP))509}510// CheckDocker is used to periodically invoke a script to511// determine the health of an application running inside a512// Docker Container. We assume that the script is compatible513// with nagios plugins and expects the output in the same format.514// Supports failures_before_critical and success_before_passing.515type CheckDocker struct {516 CheckID structs.CheckID517 ServiceID structs.ServiceID518 Script string519 ScriptArgs []string520 DockerContainerID string521 Shell string522 Interval time.Duration523 Logger hclog.Logger524 Client *DockerClient525 StatusHandler *StatusHandler526 stop chan struct{}527}528func (c *CheckDocker) Start() {529 if c.stop != nil {530 panic("Docker check already started")531 }532 if c.Logger == nil {533 c.Logger = testutil.NewDiscardLogger()534 }535 if c.Shell == "" {536 c.Shell = os.Getenv("SHELL")537 if c.Shell == "" {538 c.Shell = "/bin/sh"539 }540 }541 c.stop = make(chan struct{})542 go c.run()543}544func (c *CheckDocker) Stop() {545 if c.stop == nil {546 panic("Stop called before start")547 }548 close(c.stop)549}550func (c *CheckDocker) run() {551 defer c.Client.Close()552 firstWait := lib.RandomStagger(c.Interval)553 next := time.After(firstWait)554 for {555 select {556 case <-next:557 c.check()558 next = time.After(c.Interval)559 case <-c.stop:560 return561 }562 }563}564func (c *CheckDocker) check() {565 var out string566 status, b, err := c.doCheck()567 if err != nil {568 c.Logger.Debug("Check failed",569 "check", c.CheckID.String(),570 "error", err,571 )572 out = err.Error()573 } else {574 // out is already limited to CheckBufSize since we're getting a575 // limited buffer. So we don't need to truncate it just report576 // that it was truncated.577 out = string(b.Bytes())578 if int(b.TotalWritten()) > len(out) {579 out = fmt.Sprintf("Captured %d of %d bytes\n...\n%s", len(out), b.TotalWritten(), out)580 }581 c.Logger.Trace("Check output",582 "check", c.CheckID.String(),583 "output", out,584 )585 }586 c.StatusHandler.updateCheck(c.CheckID, status, out)587}588func (c *CheckDocker) doCheck() (string, *circbuf.Buffer, error) {589 var cmd []string590 if len(c.ScriptArgs) > 0 {591 cmd = c.ScriptArgs592 } else {593 cmd = []string{c.Shell, "-c", c.Script}594 }595 execID, err := c.Client.CreateExec(c.DockerContainerID, cmd)596 if err != nil {597 return api.HealthCritical, nil, err598 }599 buf, err := c.Client.StartExec(c.DockerContainerID, execID)600 if err != nil {601 return api.HealthCritical, nil, err602 }603 exitCode, err := c.Client.InspectExec(c.DockerContainerID, execID)604 if err != nil {605 return api.HealthCritical, nil, err606 }607 switch exitCode {608 case 0:609 return api.HealthPassing, buf, nil610 case 1:611 c.Logger.Debug("Check failed",612 "check", c.CheckID.String(),613 "exit_code", exitCode,614 )615 return api.HealthWarning, buf, nil616 default:617 c.Logger.Debug("Check failed",618 "check", c.CheckID.String(),619 "exit_code", exitCode,620 )621 return api.HealthCritical, buf, nil622 }623}624// CheckGRPC is used to periodically send request to a gRPC server625// application that implements gRPC health-checking protocol.626// The check is passing if returned status is SERVING.627// The check is critical if connection fails or returned status is628// not SERVING.629// Supports failures_before_critical and success_before_passing.630type CheckGRPC struct {631 CheckID structs.CheckID632 ServiceID structs.ServiceID633 GRPC string634 Interval time.Duration635 Timeout time.Duration636 TLSClientConfig *tls.Config637 Logger hclog.Logger638 StatusHandler *StatusHandler639 probe *GrpcHealthProbe640 stop bool641 stopCh chan struct{}642 stopLock sync.Mutex643 // Set if checks are exposed through Connect proxies644 // If set, this is the target of check()645 ProxyGRPC string646}647func (c *CheckGRPC) CheckType() structs.CheckType {648 return structs.CheckType{649 CheckID: c.CheckID.ID,650 GRPC: c.GRPC,651 ProxyGRPC: c.ProxyGRPC,652 Interval: c.Interval,653 Timeout: c.Timeout,654 }655}656func (c *CheckGRPC) Start() {657 c.stopLock.Lock()658 defer c.stopLock.Unlock()659 timeout := 10 * time.Second660 if c.Timeout > 0 {661 timeout = c.Timeout662 }663 c.probe = NewGrpcHealthProbe(c.GRPC, timeout, c.TLSClientConfig)664 c.stop = false665 c.stopCh = make(chan struct{})666 go c.run()667}668func (c *CheckGRPC) run() {669 // Get the randomized initial pause time670 initialPauseTime := lib.RandomStagger(c.Interval)671 next := time.After(initialPauseTime)672 for {673 select {674 case <-next:675 c.check()676 next = time.After(c.Interval)677 case <-c.stopCh:678 return679 }680 }681}682func (c *CheckGRPC) check() {683 target := c.GRPC684 if c.ProxyGRPC != "" {685 target = c.ProxyGRPC686 }687 err := c.probe.Check(target)688 if err != nil {689 c.StatusHandler.updateCheck(c.CheckID, api.HealthCritical, err.Error())690 } else {691 c.StatusHandler.updateCheck(c.CheckID, api.HealthPassing, fmt.Sprintf("gRPC check %s: success", target))692 }693}694func (c *CheckGRPC) Stop() {695 c.stopLock.Lock()696 defer c.stopLock.Unlock()697 if !c.stop {698 c.stop = true699 close(c.stopCh)700 }701}702// StatusHandler keep tracks of successive error/success counts and ensures703// that status can be set to critical/passing only once the successive number of event704// reaches the given threshold.705type StatusHandler struct {706 inner CheckNotifier707 logger hclog.Logger708 successBeforePassing int...

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requests_outputs.go

Source:requests_outputs.go Github

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...261// https://github.com/Palakis/obs-websocket/blob/4.x-current/docs/generated/protocol.md#startoutput262type StartOutputResponse struct {263 _response `json:",squash"`264}265// StopOutputRequest : Stop an output.266//267// Since obs-websocket version: 4.7.0.268//269// https://github.com/Palakis/obs-websocket/blob/4.x-current/docs/generated/protocol.md#stopoutput270type StopOutputRequest struct {271 // Output name.272 // Required: Yes.273 OutputName string `json:"outputName"`274 // Force stop (default: false).275 // Required: No.276 Force bool `json:"force"`277 _request `json:",squash"`278 response chan StopOutputResponse279}280// NewStopOutputRequest returns a new StopOutputRequest.281func NewStopOutputRequest(282 outputName string,283 force bool,284) StopOutputRequest {285 return StopOutputRequest{286 outputName,287 force,288 _request{289 ID_: GetMessageID(),290 Type_: "StopOutput",291 err: make(chan error, 1),292 },293 make(chan StopOutputResponse, 1),294 }295}296// Send sends the request.297func (r *StopOutputRequest) Send(c Client) error {298 if r.sent {299 return ErrAlreadySent300 }301 future, err := c.SendRequest(r)302 if err != nil {303 return err304 }305 r.sent = true306 go func() {307 m := <-future308 var resp StopOutputResponse309 if err = mapToStruct(m, &resp); err != nil {310 r.err <- err311 } else if resp.Status() != StatusOK {312 r.err <- errors.New(resp.Error())313 } else {314 r.response <- resp315 }316 }()317 return nil318}319// Receive waits for the response.320func (r StopOutputRequest) Receive() (StopOutputResponse, error) {321 if !r.sent {322 return StopOutputResponse{}, ErrNotSent323 }324 if receiveTimeout == 0 {325 select {326 case resp := <-r.response:327 return resp, nil328 case err := <-r.err:329 return StopOutputResponse{}, err330 }331 } else {332 select {333 case resp := <-r.response:334 return resp, nil335 case err := <-r.err:336 return StopOutputResponse{}, err337 case <-time.After(receiveTimeout):338 return StopOutputResponse{}, ErrReceiveTimeout339 }340 }341}342// SendReceive sends the request then immediately waits for the response.343func (r StopOutputRequest) SendReceive(c Client) (StopOutputResponse, error) {344 if err := r.Send(c); err != nil {345 return StopOutputResponse{}, err346 }347 return r.Receive()348}349// StopOutputResponse : Response for StopOutputRequest.350//351// Since obs-websocket version: 4.7.0.352//353// https://github.com/Palakis/obs-websocket/blob/4.x-current/docs/generated/protocol.md#stopoutput354type StopOutputResponse struct {355 _response `json:",squash"`356}...

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CrivelloDiEratostene.go

Source:CrivelloDiEratostene.go Github

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1package main2import (3 "fmt"4)5var primeNumbersCount = 06const STOP = -17/**8 At the end of all the numbers is sent the stop guard to close the goroutines(not so elegant)9 @param: channel to fill with all the odds integer to be processed10 @param: maximum limit picked by the user at the beginning of the program11 @return: void12 */13func Producer(outputChannel chan int, max int) {14 for i := 3; i <= max; i+=2 {15 outputChannel <- i16 }17 outputChannel <- STOP18}19/**20 @param: channel with the integers given by producer21 @param: channel to stop the execution22 @return: void23 */24func Consumer(inputChannel chan int, stopChannel chan bool) {25 for {26 toBeCheckedNum := <- inputChannel27 if toBeCheckedNum == STOP {28 break29 }30 fmt.Printf("Found the prime number %d\n", toBeCheckedNum)31 primeNumbersCount++32 outputChannel := make(chan int)33 //I use a separate goroutine in order to remove form my channel all the values that can be divided by the34 //current number so for the next one is for sure a prime number.35 go filter(toBeCheckedNum, inputChannel, outputChannel)36 inputChannel = outputChannel37 }38 close(stopChannel)39}40/**41 @param: int, prime number for Consumer func42 @param: channels to exchange data with Consumer func43 */44func filter(prime int, inputChannel, outputChannel chan int) {45 for {46 value := <-inputChannel47 if value == STOP {48 outputChannel <- value49 return50 }51 if (value % prime) != 0 {52 outputChannel <- value53 }54 }55}56func main() {57 fmt.Println("Insert Range limit: ")58 var rangeLimit int59 fmt.Scan(&rangeLimit)60 fmt.Println(rangeLimit)61 ch := make(chan int)62 stop := make(chan bool)63 go Producer(ch, rangeLimit)64 go Consumer(ch, stop)65 <-stop66 fmt.Printf("I have found %d prime numbers\n", primeNumbersCount)67 fmt.Printf("The number of goroutines generated is: %d\n", primeNumbersCount+2)68}...

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1func main() {2}3func main() {4}5func main() {6}7func main() {8}9func main() {10}11func main() {12}13func main() {14}15func main() {16}17func main() {18}19func main() {20}21func main() {22}23func main() {24}25func main() {26}27func main() {28}29func main() {30}31func main()

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1import (2func main() {3 f, err := os.Open("1.go")4 if err != nil {5 fmt.Println(err)6 }7 defer f.Close()8 n, err := f.Read(buf[:])9 if err != nil {10 fmt.Println(err)11 }12 fmt.Printf("Read %d bytes: %q13}14import (15func main() {16 f, err := os.Open("1.go")17 if err != nil {18 fmt.Println(err)19 }20 defer f.Close()21 n, err := f.Read(buf[:])22 if err != nil {23 if err == io.EOF {24 fmt.Println("EOF")25 } else {26 fmt.Println(err)27 }28 }29 fmt.Printf("Read %d bytes: %q30}31import (32func main() {33 f, err := os.Open("1.go")34 if err != nil {35 fmt.Println(err)36 }37 defer f.Close()38 n, err := f.Read(buf[:])39 if err != nil {40 if err == io.EOF {41 fmt.Println("EOF")42 } else if err == io.ErrUnexpectedEOF {43 fmt.Println("ErrUnexpectedEOF")44 } else {45 fmt.Println(err)46 }47 }48 fmt.Printf("Read %d bytes: %q49}50import (51func main() {52 f, err := os.Open("1.go")53 if err != nil {54 fmt.Println(err)55 }56 defer f.Close()57 n, err := f.Read(buf[:])58 if err != nil {59 if err == io.EOF {60 fmt.Println("EOF")61 } else if err == io.ErrUnexpectedEOF {

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1import "fmt"2func main() {3 fmt.Println("Hello, playground")4}5import "fmt"6func main() {7 fmt.Println("Hello, playground")8}9import "fmt"10func main() {11 fmt.Println("Hello, playground")12}13import "fmt"14func main() {15 fmt.Println("Hello, playground")16}17import "fmt"18func main() {19 fmt.Println("Hello, playground")20}21import "fmt"22func main() {23 fmt.Println("Hello, playground")24}25import "fmt"26func main() {27 fmt.Println("Hello, playground")28}29import "fmt"30func main() {31 fmt.Println("Hello, playground")32}33import "fmt"34func main() {35 fmt.Println("Hello, playground")36}37import "fmt"38func main() {39 fmt.Println("Hello, playground")40}41import "fmt"42func main() {43 fmt.Println("Hello, playground")44}45import "fmt"46func main() {47 fmt.Println("Hello, playground")48}49import "fmt"50func main() {51 fmt.Println("Hello, playground")52}53import "fmt"54func main() {55 fmt.Println("Hello, playground")56}57import "fmt"58func main() {59 fmt.Println("Hello, playground")60}

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1import "fmt"2func main() {3 fmt.Println("Hello World!")4}5import "fmt"6func main() {7 fmt.Println("Hello World!")8}9import "fmt"10func main() {11 fmt.Println("Hello World!")12}13import "fmt"14func main() {15 fmt.Println("Hello World!")16}17import "fmt"18func main() {19 fmt.Println("Hello World!")20}21import "fmt"22func main() {23 fmt.Println("Hello World!")24}25import "fmt"26func main() {27 fmt.Println("Hello World!")28}29import "fmt"30func main() {31 fmt.Println("Hello World!")32}33import "fmt"34func main() {35 fmt.Println("Hello World!")36}37import "fmt"38func main() {39 fmt.Println("Hello World!")40}41import "fmt"42func main() {43 fmt.Println("Hello World!")44}

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1import (2func main() {3 fmt.Println("Hello World")4 time.Sleep(time.Second * 5)5 fmt.Println("Hello World")6}7import (8func main() {9 fmt.Println("Hello World")10 time.Sleep(time.Second * 5)11 fmt.Println("Hello World")12}13import (14func main() {15 fmt.Println("Hello World")16 time.Sleep(time.Second * 5)17 fmt.Println("Hello World")18}19import (20func main() {21 fmt.Println("Hello World")22 time.Sleep(time.Second * 5)23 fmt.Println("Hello World")24}25import (26func main() {27 fmt.Println("Hello World")28 time.Sleep(time.Second * 5)29 fmt.Println("Hello World")30}31import (32func main() {33 fmt.Println("Hello World")34 time.Sleep(time.Second * 5)35 fmt.Println("Hello World")36}37import (38func main() {39 fmt.Println("Hello World")40 time.Sleep(time.Second * 5)41 fmt.Println("Hello World")42}43import (44func main() {45 fmt.Println("Hello World")46 time.Sleep(time.Second * 5)

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Stop

Using AI Code Generation

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1import (2var stopChan = make(chan os.Signal, 1)3func main() {4 fmt.Println("Starting main")5 signal.Notify(stopChan, syscall.SIGINT, syscall.SIGTERM)6 go func() {7 for {8 time.Sleep(1 * time.Second)9 fmt.Println("Running main")10 }11 }()12 fmt.Println("Stopping main")13}

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Stop

Using AI Code Generation

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1import "fmt"2func main() {3 ch := make(chan int)4 output := Output{ch}5 go output.Start()6 for i := 0; i < 5; i++ {7 }8 output.Stop()9}10type Output struct {11}12func (o *Output) Start() {13 for {14 select {15 fmt.Println(v)16 }17 }18}19func (o *Output) Stop() {20 close(o.ch)21}

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