How to use checkLock method of main Package

Best Rod code snippet using main.checkLock

writer.go

Source:writer.go

...33	// typical user operation latency34	tick := time.Tick(150 * time.Millisecond)35	for range tick {36		const retries = 537		checkLock := func(err error) bool {38			if err == nil {39				return false40			}41			if isLocked(err) {42				log.Println(err, "retrying")43				return true44			}45			check(err)46			return false47		}48		for i := 0; i < retries; i++ {49			tx, err := db.BeginTx(context.Background(), &sql.TxOptions{50				Isolation: sql.LevelSerializable,51			})52			if checkLock(err) {53				continue54			}55			var i int56			row := tx.QueryRow("SELECT v FROM t1 WHERE id = 1")57			checkLock(row.Scan(&i))58			i++59			_, err = tx.Exec("UPDATE t1 SET v = $1 WHERE id = 1", i)60			if checkLock(err) {61				continue62			}63			// typical local file operation latency64			wait := 75 * time.Millisecond65			if *slow {66				// typical network latency67				wait = 250 * time.Millisecond68			}69			time.Sleep(wait)70			if checkLock(tx.Commit()) {71				tx.Rollback()72				continue73			}74			break75		}76		fmt.Print(".")77		if *interactive {78			var i string79			fmt.Scanln(&i)80		}81	}82}83func check(err error) {84	if err != nil {...

ruready.go

Source:ruready.go

...18    Port int `short:"p" long:"port" default:"8099" description:"Server port"`19    Version bool `short:"v" long:"version"  description:"Shows version information"`20}21var cmdArgs []string22var checkLock sync.Mutex23var lastCheck time.Time = time.Time{}24var isReady bool = false25var meta_version string = "N/A"26func checkIsReady() bool {27    checkLock.Lock()28    defer checkLock.Unlock()29    if !isReady {30        now := time.Now()31        secondsSinceLastCheck := int(now.Sub(lastCheck).Seconds())32        if secondsSinceLastCheck > opts.CacheTime {33            lastCheck = now;34            err := exec.Command(opts.Command, cmdArgs...).Run()35            isReady = err == nil36        }37    }38    return isReady39}40func readyHandler(w http.ResponseWriter, r *http.Request) {41    if !checkIsReady() {42        w.WriteHeader(http.StatusServiceUnavailable)...

main.go

Source:main.go

...7)8// This example shows how to detect the hanging points of golang code.9// It's actually a general way to debug any golang project.10func main() {11	defer checkLock()()12	go yourCodeHere()13}14// Put your code here, press Ctrl+C when you feel the program is hanging.15// Read each goroutine's stack that is related to your own code logic.16func yourCodeHere() {17	page := rod.New().MustConnect().MustPage("http://mdn.dev")18	go page.MustElement("not-exists")19}20// For this example you will find something like this below:21/*22goroutine 7 [select]:23github.com/moredure/xrod.(*Page).MustElement(0xc00037e000, 0xc00063a0f0, 0x1, 0x1, 0x0)24	rod/must.go:425 +0x4d25created by main.yourCodeHere26	rod/lib/examples/debug-deadlock/main.go:22 +0xb827*/28// From it we know the line 22 is blocking the code.29func checkLock() func() {30	ctx := gotrace.Signal()31	ignored := gotrace.IgnoreCurrent()32	return func() {33		fmt.Println(gotrace.Wait(ctx, ignored))34	}35}...

checkLock

Using AI Code Generation

1import (2func main() {3	wg.Add(2)4	go func() {5		checkLock()6		wg.Done()7	}()8	go func() {9		checkLock()10		wg.Done()11	}()12	wg.Wait()13}14func checkLock() {15	m.Lock()16	fmt.Println("Locked:", m)17	m.Unlock()18	fmt.Println("Unlocked:", m)19}20Locked: {state:1 sema:0}21Unlocked: {state:0 sema:0}22Locked: {state:1 sema:0}23Unlocked: {state:0 sema:0}24import (25func main() {26	wg.Add(2)27	go func() {28		checkLock()29		wg.Done()30	}()31	go func() {32		checkLock()33		wg.Done()34	}()35	wg.Wait()36}37func checkLock() {38	m.Lock()39	fmt.Println("Locked:", m)40}41Locked: {state:1 sema:0}42import (

checkLock

Using AI Code Generation

1import (2func main() {3    wg.Add(1)4    go func() {5        defer wg.Done()6        main.checkLock()7    }()8    wg.Wait()9}10import (11func main() {12    wg.Add(1)13    go func() {14        defer wg.Done()15        main.checkLock()16    }()17    wg.Wait()18}19import (20func main() {21    wg.Add(1)22    go func() {23        defer wg.Done()24        main.checkLock()25    }()26    wg.Wait()27}28import (29func main() {30    wg.Add(1)31    go func() {32        defer wg.Done()33        main.checkLock()34    }()35    wg.Wait()36}37import (38func main() {39    wg.Add(1)40    go func() {41        defer wg.Done()42        main.checkLock()43    }()44    wg.Wait()45}46import (47func main() {48    wg.Add(1)49    go func() {50        defer wg.Done()51        main.checkLock()52    }()53    wg.Wait()54}55import (56func main() {57    wg.Add(1)58    go func() {59        defer wg.Done()60        main.checkLock()61    }()62    wg.Wait()63}

checkLock

Using AI Code Generation

1checkLock()2checkLock()3checkLock()4import (5func main() {6	fmt.Println("Hello, World!")7	go func() {8		time.Sleep(1 * time.Second)9	}()10	checkLock(&lock)11	fmt.Println("Hello, World!")12	checkLock(&lock)13	fmt.Println("Hello, World!")14	checkLock(&lock)15	fmt.Println("Hello, World!")16	checkLock(&lock)17}18func checkLock(lock *int) {19	for *lock == 0 {20	}21}

checkLock

Using AI Code Generation

1import (2func main() {3	wg.Add(1)4	go func() {5		defer wg.Done()6		main.checkLock()7	}()8	wg.Wait()9}10import (11func main() {12	wg.Add(1)13	go func() {14		defer wg.Done()15		main.checkLock()16	}()17	wg.Wait()18}19./1.go:10: main.checkLock undefined (type func() has no field or method checkLock)20./2.go:10: main.checkLock undefined (type func() has no field or method checkLock)21./3.go:10: main.checkLock undefined (type func() has no field or method checkLock)22How can I access main.checkLock() method from other go files?23import (

checkLock

Using AI Code Generation

1import (2func main() {3	fmt.Println("CPU's ", runtime.NumCPU())4	fmt.Println("GoRoutines ", runtime.NumGoroutine())5	wg.Add(2)6	go func() {7		checkLock(&mu)8		wg.Done()9	}()10	go func() {11		checkLock(&mu)12		wg.Done()13	}()14	fmt.Println("CPU's ", runtime.NumCPU())15	fmt.Println("GoRoutines ", runtime.NumGoroutine())16	wg.Wait()17}18func checkLock(mu *sync.Mutex) {19	mu.Lock()20	fmt.Println("Locked")21	time.Sleep(time.Second)22	mu.Unlock()23	fmt.Println("Unlocked")24}25import (26func main() {27	fmt.Println("CPU's ", runtime.NumCPU())28	fmt.Println("GoRoutines ", runtime.NumGoroutine())29	wg.Add(2)30	go func() {31		checkLock(&mu)32		wg.Done()33	}()34	go func() {35		checkLock(&mu)36		wg.Done()37	}()38	fmt.Println("CPU's ", runtime.NumCPU())39	fmt.Println("GoRoutines ", runtime.NumGoroutine())40	wg.Wait()41}42func checkLock(mu *sync.Mutex) {43	mu.Lock()44	fmt.Println("Locked")45	time.Sleep(time.Second)46	mu.Unlock()47	fmt.Println("Unlocked")48}

checkLock

Using AI Code Generation

1import "fmt"2func main() {3  fmt.Println("Hello World")4  main.checkLock()5}6import "fmt"7func main() {8  fmt.Println("Hello World")9}10func checkLock() {11  fmt.Println("Hello World")12}

checkLock

Using AI Code Generation

1import "fmt"2func main() {3    var s = new(Struct)4    s.checkLock()5    fmt.Println("Hello, playground")6}7import "fmt"8type Struct struct {9}10func (s *Struct) checkLock() {11    fmt.Println("Hello, playground")12}13./2.go:6: s.checkLock undefined (type *Struct has no field or method checkLock)14import "fmt"15type Struct struct{}16func (s *Struct) checkLock() {17    fmt.Println("Hello, playground")18}19func main() {20    var s = new(Struct)21    s.checkLock()22    fmt.Println("Hello, playground")23}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.