How to use ForExit method of wait Package

Best Testcontainers-go code snippet using wait.ForExit

Call.go

Source:Call.go Github

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1package bulkruntool2import (3 "fmt"4 "sync"5 "time"6)7//RunTaskAndAscCallBack 启动指定数量的协程执行多个方法,并按顺序回调8func RunTaskAndAscCallBack(maxTaskCount int, funcs []func() interface{}, callback func(interface{})) {9 ch := make(chan struct{}, maxTaskCount)10 defer close(ch)11 ch2 := make(chan chan struct{}, maxTaskCount)12 once := sync.Once{}13 for _, fn := range funcs {14 ch <- struct{}{}15 sign := make(chan struct{})16 ch2 <- sign17 once.Do(func() {18 close(<-ch2)19 })20 go func(fn func() interface{}, sign chan struct{}) {21 result := fn()22 <-sign23 callback(result)24 close(<-ch2)25 _, ok := <-ch26 if !ok && len(ch2) == 0 {27 close(ch2)28 }29 }(fn, sign)30 }31}32//RunTaskAndAscCallBack2 启动指定数量的协程执行多个方法,并按顺序回调33func RunTaskAndAscCallBack2(maxTaskCount int, funcs <-chan func() interface{}, callback func(interface{})) {34 ch := make(chan struct{}, maxTaskCount)35 defer close(ch)36 ch2 := make(chan chan struct{}, maxTaskCount)37 once := sync.Once{}38 for len(funcs) > 0 {39 fn := <-funcs40 ch <- struct{}{}41 sign := make(chan struct{})42 ch2 <- sign43 once.Do(func() {44 close(<-ch2)45 })46 go func(fn func() interface{}, sign chan struct{}) {47 result := fn()48 <-sign49 callback(result)50 close(<-ch2)51 _, ok := <-ch52 if !ok && len(ch2) == 0 {53 close(ch2)54 }55 }(fn, sign)56 }57}58//RunTask 运行指定数量的协程执行多个方法59func RunTask(maxTaskCount int, funcs []func()) {60 ch := make(chan struct{}, maxTaskCount)61 defer close(ch)62 for _, fn := range funcs {63 ch <- struct{}{}64 go func(f func()) {65 defer func() {66 <-ch67 }()68 f()69 }(fn)70 }71}72//RunTask2 运行指定数量的协程执行多个方法73func RunTask2(maxTaskCount int, funcs <-chan func()) {74 ch := make(chan struct{}, maxTaskCount)75 defer close(ch)76 for len(funcs) > 0 {77 fn := <-funcs78 ch <- struct{}{}79 go func(f func()) {80 defer func() {81 <-ch82 }()83 f()84 }(fn)85 }86}87//CreateBulkRunFuncChannel 创建一个指定并发数量处理,只允许发送的方法通道88func CreateBulkRunFuncChannel(maxTaskCount, maxFuncCount int, done <-chan struct{}) chan<- func() {89 funcs := make(chan func(), maxFuncCount)90 go func(funcs chan func(), maxTaskCount int) {91 ch := make(chan struct{}, maxTaskCount)92 defer close(funcs)93 defer close(ch)94 for {95 select {96 case fn, ok := <-funcs:97 if !ok {98 return99 }100 ch <- struct{}{}101 go func(f func()) {102 defer func() {103 <-ch104 }()105 f()106 }(fn)107 case <-done:108 return109 }110 }111 }(funcs, maxTaskCount)112 return funcs113}114func CreateBulkRunFuncChannelAscCallBack(maxTaskCount, maxFuncCount int, done <-chan struct{}, callBack func(interface{})) chan<- func() interface{} {115 funcs := make(chan func() interface{}, maxFuncCount)116 go func(funcs chan func() interface{}, maxTaskCount int) {117 ch := make(chan chan struct{}, maxTaskCount)118 once := sync.Once{}119 // defer close(funcs)120 for {121 select {122 case fn, ok := <-funcs:123 if !ok {124 return125 }126 sign := make(chan struct{})127 ch <- sign128 once.Do(func() { close(<-ch) })129 go func(fn func() interface{}, callBack func(interface{})) {130 result := fn()131 <-sign132 defer close(<-ch)133 callBack(result)134 }(fn, callBack)135 case <-done:136 return137 }138 }139 }(funcs, maxTaskCount)140 return funcs141}142type GoPoll struct {143 work chan func()144 sem chan struct{}145 timeout time.Duration146}147func NewGoPoll(size int, forExit time.Duration) *GoPoll {148 return &GoPoll{149 work: make(chan func()),150 sem: make(chan struct{}, size),151 timeout: forExit,152 }153}154//Grow .155func (p *GoPoll) Grow(num int) error {156 newSem := make(chan struct{}, num)157loop:158 for {159 select {160 case sign := <-p.sem:161 select {162 case newSem <- sign:163 default:164 }165 default:166 break loop167 }168 }169 p.sem = newSem170 return nil171}172//Schedule 把方法加入协程池并被执行173func (p *GoPoll) Schedule(task func()) error {174 select {175 case p.work <- task:176 case p.sem <- struct{}{}:177 go p.worker(p.timeout, task)178 }179 return nil180}181func (p *GoPoll) worker(delay time.Duration, task func()) {182 defer func() { <-p.sem }()183 timer := time.NewTimer(delay)184 for {185 task()186 timer.Reset(delay)187 select {188 case task = <-p.work:189 case <-timer.C:190 return191 }192 }193}194func Poll(size int, forExit time.Duration) func(func()) error {195 var (196 work chan func() = make(chan func())197 sem chan struct{} = make(chan struct{}, size)198 timeout time.Duration = forExit199 worker = func(delay time.Duration, task func()) {200 defer func() { <-sem }()201 timer := time.NewTimer(delay)202 for {203 task()204 timer.Reset(delay)205 select {206 case task = <-work:207 case <-timer.C:208 return209 }210 }211 }212 )213 return func(task func()) error {214 select {215 case work <- task:216 case sem <- struct{}{}:217 go worker(timeout, task)218 }219 return nil220 }221}222//BuilkRun .223func BuilkRun(goCount int, idCards []string, fn func(idCard string)) {224 chs := make(chan struct{}, goCount)225 defer close(chs)226 var wg sync.WaitGroup227 for i := 0; i < len(idCards); i++ {228 chs <- struct{}{}229 wg.Add(1)230 idCard := idCards[i]231 go func(idCard string) {232 defer func() {233 <-chs234 wg.Done()235 if err := recover(); err != nil {236 fmt.Println(err)237 }238 }()239 fn(idCard)240 }(idCard)241 }242 wg.Wait()243}...

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exit.go

Source:exit.go Github

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...31func (ws *ExitStrategy) WithPollInterval(pollInterval time.Duration) *ExitStrategy {32 ws.PollInterval = pollInterval33 return ws34}35// ForExit is the default construction for the fluid interface.36//37// For Example:38// wait.39// ForExit().40// WithPollInterval(1 * time.Second)41func ForExit() *ExitStrategy {42 return NewExitStrategy()43}44// WaitUntilReady implements Strategy.WaitUntilReady45func (ws *ExitStrategy) WaitUntilReady(ctx context.Context, target StrategyTarget) (err error) {46 // limit context to exitTimeout47 if ws.exitTimeout > 0 {48 var cancelContext context.CancelFunc49 ctx, cancelContext = context.WithTimeout(ctx, ws.exitTimeout)50 defer cancelContext()51 }52 for {53 select {54 case <-ctx.Done():55 return ctx.Err()...

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ForExit

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1import (2func main() {3 binary, lookErr := exec.LookPath("ls")4 if lookErr != nil {5 panic(lookErr)6 }7 args := []string{"ls", "-a", "-l", "-h"}8 env := os.Environ()9 execErr := syscall.Exec(binary, args, env)10 if execErr != nil {11 panic(execErr)12 }13}14Wait() : Wa

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ForExit

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1import (2func main() {3 cmd := exec.Command("ping", "www.google.com")4 err := cmd.Start()5 if err != nil {6 fmt.Println("Error starting process: ", err)7 }8 time.Sleep(time.Second * 5)9 err = cmd.Process.Kill()10 if err != nil {11 fmt.Println("Error killing process: ", err)12 }13 err = cmd.Wait()14 fmt.Println("Process finished with error: ", err)15}

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ForExit

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1import (2func main() {3 cmd := exec.Command("ls", "-l")4 err := cmd.Start()5 if err != nil {6 fmt.Println(err)7 os.Exit(1)8 }9 err = cmd.Wait()10 if err != nil {11 fmt.Println("Error: ", err)12 os.Exit(1)13 }14 if exiterr, ok := err.(*exec.ExitError); ok {15 if status, ok := exiterr.Sys().(syscall.WaitStatus); ok {16 fmt.Printf("Exit Status: %d17", status.ExitStatus())18 }19 } else {20 fmt.Printf("process ran with no error21 }22}

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ForExit

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1import (2func main() {3 cmd := exec.Command("ls", "-l")4 err := cmd.Run()5 if err != nil {6 fmt.Println(err)7 }8 fmt.Println("Exit status: ", cmd.ProcessState.ExitCode())9}10import (11func main() {12 cmd := exec.Command("ls", "-l")13 err := cmd.Wait()14 if err != nil {15 fmt.Println(err)16 }17 fmt.Println("Exit status: ", cmd.ProcessState.ExitCode())18}19import (20func main() {21 cmd := exec.Command("ls", "-l")22 err := cmd.Wait()23 if err != nil {24 fmt.Println(err)25 }26 fmt.Println("Exit status: ", cmd.ProcessState.ExitCode())27}28import (29func main() {30 cmd := exec.Command("ls", "-l")31 err := cmd.Wait()32 if err != nil {33 fmt.Println(err)34 }35 fmt.Println("Exit status: ", cmd.ProcessState.ExitCode())36}37import (38func main() {39 cmd := exec.Command("ls", "-l")40 err := cmd.Wait()41 if err != nil {42 fmt.Println(err)43 }44 fmt.Println("Exit status: ", cmd.ProcessState.ExitCode())45}46import (47func main() {48 cmd := exec.Command("ls", "-l")49 err := cmd.Wait()50 if err != nil {51 fmt.Println(err)52 }53 fmt.Println("Exit status: ", cmd.ProcessState.ExitCode())54}55import (56func main() {57 cmd := exec.Command("ls", "-l")58 err := cmd.Wait()59 if err != nil {60 fmt.Println(err)61 }62 fmt.Println("Exit

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ForExit

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1import (2func main() {3 cmd := exec.Command("bash", "-c", "sleep 5; ls -l; sleep 5; ls -l")4 err := cmd.Start()5 if err != nil {6 fmt.Println("Error starting the process", err)7 }8 fmt.Println("The process id is", cmd.Process.Pid)9 err = cmd.Wait()10 fmt.Println("Wait returned", err)11 err = cmd.Process.Signal(os.Interrupt)12 fmt.Println("Signal returned", err)13 status, ok := cmd.ProcessState.Sys().(syscall.WaitStatus)14 if !ok {15 fmt.Println("Error: not a WaitStatus")16 }17 fmt.Println("Exit status was", status.ExitStatus())18}

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ForExit

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1import (2func main() {3 cmd := exec.Command("sleep", "2")4 cmd.Start()5 fmt.Println("Waiting for command to finish...")6 err := cmd.Wait()7 fmt.Println("Command finished with error: ", err)8}9import (10func main() {11 cmd := exec.Command("sleep", "2")12 cmd.Start()13 fmt.Println("Waiting for command to finish...")14 err := cmd.Wait()15 fmt.Println("Command finished with error: ", err)16}17import (18func main() {19 cmd := exec.Command("sleep", "2")20 cmd.Start()21 fmt.Println("Waiting for command to finish...")22 err := cmd.Wait()23 fmt.Println("Command finished with error: ", err)24}25import (26func main() {27 cmd := exec.Command("sleep", "2")28 cmd.Start()29 fmt.Println("Waiting for command to finish...")30 err := cmd.Wait()31 fmt.Println("Command finished with error: ", err)32}33import (34func main() {35 cmd := exec.Command("sleep", "2")36 cmd.Start()37 fmt.Println("Waiting for command to finish...")38 err := cmd.Wait()39 fmt.Println("Command finished with error: ", err)40}41import (42func main() {43 cmd := exec.Command("sleep",

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