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How to use Stop method of engine Package

Best K6 code snippet using engine.Stop

engine.go

Source:engine.go

...8package donna9import (`fmt`; `os`; `time`)10const Ping = 250 // Check time 4 times a second.11type Clock struct {12	halt        bool     // Stop search immediately when set to true.13	softStop    int64    // Target soft time limit to make a move.14	hardStop    int64    // Immediate stop time limit.15	extra       float32  // Extra time factor based on search volatility.16	start       time.Time17	ticker      *time.Ticker18}19type Options struct {20	ponder      bool     // (-) Pondering mode.21	infinite    bool     // (-) Search until the "stop" command.22	maxDepth    int      // Search X plies only.23	maxNodes    int      // (-) Search X nodes only.24	moveTime    int64    // Search exactly X milliseconds per move.25	movesToGo   int64    // Number of moves to make till time control.26	timeLeft    int64    // Time left for all remaining moves.27	timeInc     int64    // Time increment after the move is made.28}29type Engine struct {30	log         bool     // Enable logging.31	uci	    bool     // Use UCI protocol.32	trace       bool     // Trace evaluation scores.33	fancy       bool     // Represent pieces as UTF-8 characters.34	status      uint8    // Engine status.35	logFile     string   // Log file name.36	bookFile    string   // Polyglot opening book file name.37	cacheSize   float64  // Default cache size.38	clock       Clock39	options     Options40}41// Use single statically allocated variable.42var engine Engine43func NewEngine(args ...interface{}) *Engine {44	engine = Engine{}45	for i := 0; i < len(args); i += 2 {46		switch value := args[i+1]; args[i] {47		case `log`:48			engine.log = value.(bool)49		case `logfile`:50			engine.logFile = value.(string)51		case `bookfile`:52			engine.bookFile = value.(string)53		case `uci`:54			engine.uci = value.(bool)55		case `trace`:56			engine.trace = value.(bool)57		case `fancy`:58			engine.fancy = value.(bool)59		case `depth`:60			engine.options.maxDepth = value.(int)61		case `movetime`:62			engine.options.moveTime = int64(value.(int))63		case `cache`:64			switch value.(type) {65			default: // :-)66				engine.cacheSize = value.(float64)67			case int:68				engine.cacheSize = float64(value.(int))69			}70		}71	}72	return &engine73}74// Dumps the string to standard output.75func (e *Engine) print(arg string) *Engine {76	os.Stdout.WriteString(arg)77	os.Stdout.Sync() // <-- Flush it.78	return e79}80// Appends the string to log file. No flush is required as f.Write() and friends81// are unbuffered.82func (e *Engine) debug(args ...interface{}) *Engine {83	if len(e.logFile) != 0 {84		logFile, err := os.OpenFile(e.logFile, os.O_CREATE | os.O_WRONLY | os.O_APPEND, 0666)85		if err == nil {86			defer logFile.Close()87			if len := len(args); len > 1 {88				logFile.WriteString(fmt.Sprintf(args[0].(string), args[1:]...))89			} else {90				logFile.WriteString(args[0].(string))91			}92		}93	}94	return e95}96// Dumps the string to standard output and optionally logs it to file.97func (e *Engine) reply(args ...interface{}) *Engine {98	if len := len(args); len > 1 {99		data := fmt.Sprintf(args[0].(string), args[1:]...)100		e.print(data)101		//\\ e.debug(data)102	} else if len == 1 {103		e.print(args[0].(string))104		//\\ e.debug(args[0].(string))105	}106	return e107}108func (e *Engine) fixedDepth() bool {109	return e.options.maxDepth > 0110}111func (e *Engine) fixedTime() bool {112	return e.options.moveTime > 0113}114func (e *Engine) varyingTime() bool {115	return e.options.moveTime == 0116}117// Returns elapsed time in milliseconds.118func (e *Engine) elapsed(now time.Time) int64 {119	return now.Sub(e.clock.start).Nanoseconds() / 1000000 //int64(time.Millisecond)120}121// Returns remaining search time to make a move. The remaining time extends the122// soft stop estimate based on search volatility factor.123func (e *Engine) remaining() int64 {124	return int64(float32(e.clock.softStop) * e.clock.extra)125}126// Sets extra time factor. For depths 5+ we take into account search volatility,127// i.e. extra time is given for uncertain positions where the best move is not clear.128func (e *Engine) factor(depth int, volatility float32) *Engine {129	e.clock.extra = 0.75130	if depth >= 5 {131		e.clock.extra *= (volatility + 1.0)132	}133	return e134}135// Starts the clock setting ticker callback function. The callback function is136// different for fixed and variable time controls.137func (e *Engine) startClock() *Engine {138	e.clock.halt = false139	if e.options.moveTime == 0 && e.options.timeLeft == 0 {140		return e141	}142	e.clock.start = time.Now()143	e.clock.ticker = time.NewTicker(time.Millisecond * Ping)144	if e.fixedTime() {145		return e.fixedTimeTicker()146	}147	// How long a minute is depends on which side of the bathroom door you're on.148	return e.varyingTimeTicker()149}150// Stop the clock so that the ticker callback function is longer invoked.151func (e *Engine) stopClock() *Engine {152	if e.clock.ticker != nil {153		e.clock.ticker.Stop()154		e.clock.ticker = nil155	}156	return e157}158// Ticker callback for fixed time control (ex. 5s per move). Search gets terminated159// when we've got the move and the elapsed time approaches time-per-move limit.160func (e *Engine) fixedTimeTicker() *Engine {161	go func() {162		if e.clock.ticker == nil {163			return // Nothing to do if the clock has been stopped.164		}165		for now := range e.clock.ticker.C {166			if game.rootpv.size == 0 {167				continue // Haven't found the move yet.168			}169			if e.elapsed(now) >= e.options.moveTime - Ping {170				e.clock.halt = true171				return172			}173		}174	}()175	return e176}177// Ticker callback for the variable time control (ex. 40 moves in 5 minutes). Search178// termination depends on multiple factors with hard stop being the ultimate limit.179func (e *Engine) varyingTimeTicker() *Engine {180	go func() {181		if e.clock.ticker == nil {182			return // Nothing to do if the clock has been stopped.183		}184		for now := range e.clock.ticker.C {185			if game.rootpv.size == 0 {186				continue // Haven't found the move yet.187			}188			elapsed := e.elapsed(now)189			if (game.deepening && game.improving && elapsed > e.remaining() * 4 / 5) || elapsed > e.clock.hardStop {190				//\\ e.debug("# Halt: Flags %v Elapsed %s Remaining %s Hard stop %s\n",191				//\\	game.deepening && game.improving, ms(elapsed), ms(e.remaining() * 4 / 5), ms(e.clock.hardStop))192				e.clock.halt = true193				return194			}195		}196	}()197	return e198}199// Sets fixed search limits such as maximum depth or time to make a move.200func (e *Engine) fixedLimit(options Options) *Engine {201	e.options = options202	return e203}204// Sets variable time control options and calculates soft and hard stop estimates.205func (e *Engine) varyingLimits(options Options) *Engine {206	// Note if it's a new time control before saving the options.207	e.options = options208	e.options.ponder = false209	e.options.infinite = false210	e.options.maxDepth = 0211	e.options.maxNodes = 0212	e.options.moveTime = 0213	// Set default number of moves till the end of the game or time control.214	// TODO: calculate based on game phase.215	if e.options.movesToGo == 0 {216		e.options.movesToGo = 40217	}218	// Calculate hard and soft stop estimates.219	moves := e.options.movesToGo - 1220	hard := options.timeLeft + options.timeInc * moves221	soft := hard / e.options.movesToGo222	//\\ e.debug("#\n# Make %d moves in %s soft stop %s hard stop %s\n", e.options.movesToGo, ms(e.options.timeLeft), ms(soft), ms(hard))223	// Adjust hard stop to leave enough time reserve for the remaining moves. The time224	// reserve starts at 100% of soft stop for one remaining move, and goes down to 80%225	// in 1% decrement for 20+ remaining moves.226	if moves > 0 { // The last move gets all remaining time and doesn't need the reserve.227		percent := max64(80, 100 - moves)228		reserve := soft * moves * percent / 100229		//\\ e.debug("# Reserve %d%% = %s\n", percent, ms(reserve))230		if hard - reserve > soft {231			hard -= reserve232		}233		// Hard stop can't exceed optimal time to make 3 moves.234		hard = min64(hard, soft * 3)235		//\\ e.debug("# Hard stop %s\n", ms(hard))236	}237	// Set the final values for soft and hard stops making sure the soft stop238	// never exceeds the hard one.239	if soft < hard {240		e.clock.softStop, e.clock.hardStop = soft, hard241	} else {242		e.clock.softStop, e.clock.hardStop = hard, soft243	}244	// Keep two ping cycles available to avoid accidental time forefeit.245	e.clock.hardStop -= 2 * Ping246	if e.clock.hardStop < 0 {247		e.clock.hardStop = options.timeLeft // Oh well...248	}249	//\\ e.debug("# Final soft stop %s hard stop %s\n#\n", ms(e.clock.softStop), ms(e.clock.hardStop))250	return e251}...

engine_test.go

Source:engine_test.go

...23	"github.com/ethereum/go-ethereum/consensus/hotstuff"24	"github.com/ethereum/go-ethereum/core/types"25	"github.com/stretchr/testify/assert"26)27// TestSealStopChannel stop consensus before result committed28func TestSealStopChannel(t *testing.T) {29	chain, engine := singleNodeChain()30	block := makeBlockWithoutSeal(chain, engine, chain.Genesis())31	stop := make(chan struct{}, 1)32	eventSub := engine.EventMux().Subscribe(hotstuff.RequestEvent{})33	eventLoop := func() {34		ev := <-eventSub.Chan()35		_, ok := ev.Data.(hotstuff.RequestEvent)36		if !ok {37			t.Errorf("unexpected event comes: %v", reflect.TypeOf(ev.Data))38		}39		stop <- struct{}{}40		eventSub.Unsubscribe()41	}42	go eventLoop()...

manager.go

Source:manager.go

...37	}38	// wait for the stop signal39	<-m.stop40}41// Stop stops the manager42func (m *manager) Stop() {43	m.logger.Info().Msg("stopping session manager")44	// signal the stop channel45	m.stop <- true46}47func (m *manager) add(s *Session) {48	m.sessions[s.UUID] = s49	s.Start()50}51func (m *manager) remove(s *Session) {52	delete(m.sessions, s.UUID)53}54func (m *manager) handleAssertSession(as *events.AssertSession) {55	m.logger.Debug().Msg("handling assert session event")56	sess := newSession(as)...

Stop

Using AI Code Generation

1import (2type engine struct {3}4func (e *engine) start() {5	fmt.Println("Engine started")6}7func (e *engine) stop() {8	fmt.Println("Engine stopped")9}10type car struct {11}12func (c *car) start() {13	c.eng.start()14	fmt.Println("Car started")15}16func (c *car) stop() {17	c.eng.stop()18	fmt.Println("Car stopped")19}20func main() {21	c := car{}22	c.start()23	time.Sleep(5 * time.Second)24	c.stop()25}26import (27type engine struct {28}29func (e *engine) start() {30	fmt.Println("Engine started")31}32func (e *engine) stop() {33	fmt.Println("Engine stopped")34}35type car struct {36}37func (c *car) start() {38	c.eng.start()39	fmt.Println("Car started")40}41func (c *car) stop() {42	c.eng.stop()43	fmt.Println("Car stopped")44}45func main() {46	c := car{}47	c.start()48	time.Sleep(5 * time.Second)49	c.eng.stop()50}

Stop

Using AI Code Generation

1import (2const (3type engine struct {4}5func newEngine() (*engine, error) {6	if err := sdl.Init(sdl.INIT_EVERYTHING); err != nil {7		return nil, fmt.Errorf("could not initialize sdl: %v", err)8	}9	if err := img.Init(img.INIT_PNG); err != nil {10		return nil, fmt.Errorf("could not initialize sdl_image: %v", err)11	}12	if err := ttf.Init(); err != nil {13		return nil, fmt.Errorf("could not initialize sdl_ttf: %v", err)14	}15	if err := mix.Init(mix.INIT_MP3); err != nil {16		return nil, fmt.Errorf("could not initialize sdl_mixer: %v", err)17	}18	window, err := sdl.CreateWindow(19	if err != nil {20		return nil, fmt.Errorf("could not create window: %v", err)21	}22	renderer, err := sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED)23	if err != nil {24		return nil, fmt.Errorf("could not create renderer: %v", err)25	}26	return &engine{27	}, nil28}29func (e *engine) Stop() {30	e.window.Destroy()31	e.renderer.Destroy()32	mix.CloseAudio()33	mix.Quit()34	ttf.Quit()35	img.Quit()36	sdl.Quit()37}38func (e *engine) run() error {39	bg, err := img.Load("assets/background.png")40	if err != nil {41		return fmt.Errorf("could not load background image: %v", err

Stop

Using AI Code Generation

1import (2type Engine struct {3}4func (e Engine) Start() {5	fmt.Println("Engine Started")6}7func (e Engine) Stop() {8	fmt.Println("Engine Stopped")9}10type Car struct {11}12func main() {13	car := Car{}14	car.Start()15	time.Sleep(5 * time.Second)16	car.Stop()17}18import (19type Engine struct {20}21func (e Engine) Start() {22	fmt.Println("Engine Started")23}24func (e Engine) Stop() {25	fmt.Println("Engine Stopped")26}27type Car struct {28}29func main() {30	car := Car{}31	car.Start()32	time.Sleep(5 * time.Second)33	car.Stop()34}

Stop

Using AI Code Generation

1import (2type Engine struct {3}4func (e *Engine) Start() {5    fmt.Println("Engine started...")6    go func() {7        for {8            select {9                fmt.Println("Engine stoped")10                fmt.Println("Engine running...")11                time.Sleep(time.Second)12            }13        }14    }()15}16func (e *Engine) Stop() {17}18func main() {19    e := &Engine{make(chan bool)}20    e.Start()21    time.Sleep(time.Second * 5)22    e.Stop()23    time.Sleep(time.Second * 2)24}25import (26func main() {27    ctx, cancel := context.WithCancel(context.Background())28    go func() {29        for {30            select {31            case <-ctx.Done():32                fmt.Println("Engine stoped")33                fmt.Println("Engine running...")34                time.Sleep(time.Second)35            }36        }37    }()38    time.Sleep(time.Second * 5)39    cancel()40    time.Sleep(time.Second * 2)41}

Stop

Using AI Code Generation

1import (2func main() {3	e := Engine{4	}5	fmt.Println("Engine status is ", e.Status)6	time.Sleep(3 * time.Second)7	e.Stop()8	fmt.Println("Engine status is ", e.Status)9}10import (11func main() {12	e := Engine{13	}14	fmt.Println("Engine status is ", e.Status)15	time.Sleep(3 * time.Second)16	e.Stop()17	fmt.Println("Engine status is ", e.Status)18}19import (20type Engine struct {21}22func (e *Engine) Stop() {23	time.Sleep(1 * time.Second)24}25func main() {26	e := Engine{27	}28	fmt.Println("Engine status is ", e.Status)29	time.Sleep(3 * time.Second)30	e.Stop()31	fmt.Println("Engine status is ", e.Status)32}33import (34type Engine struct {35}36func (e *Engine) Stop() {37	time.Sleep(1 * time.Second)38}39func main() {40	e := Engine{41	}42	fmt.Println("Engine status is ", e.Status)43	time.Sleep(

Stop

Using AI Code Generation

1import (2type Engine struct {3}4func (e Engine) Start() {5	fmt.Println("Engine started")6}7func (e *Engine) Stop() {8	fmt.Println("Engine stopped")9}10type Car struct {11}12func main() {13	car := Car{14		Engine: Engine{15		},16	}17	car.Start()18	car.Stop()19	fmt.Println(runtime.GOOS)20	fmt.Println(runtime.GOARCH)21}22import (23type Engine struct {24}25func (e Engine) Start() {26	fmt.Println("Engine started")27}28func (e Engine) Stop() {29	fmt.Println("Engine stopped")30}31type Car struct {32}33func main() {34	car := Car{35		Engine: Engine{36		},37	}38	car.Start()39	car.Stop()40	fmt.Println(runtime.GOOS)41	fmt.Println(runtime.GOARCH)42}43import (

Stop

Using AI Code Generation

1import "fmt"2import "github.com/Engine"3func main() {4    fmt.Println("Using Stop method of Engine class")5    engine.Stop()6}7import "fmt"8import e "github.com/Engine"9func main() {10    fmt.Println("Using Stop method of Engine class")11    engine.Stop()12}13I am a software developer and trainer. I have been working with the Microsoft .NET platform since 2000. I am a Microsoft Certified Solution Developer (MCSD) with expertise in C#, ASP.NET, MVC, WCF, and Web API. I have also worked with SQL Server, Entity Framework, and LINQ. I am a Microsoft Certified Trainer (MCT) and have been a speaker at various international conferences. I am the author of several books on Microsoft .NET technologies. I am also a Microsoft Certified Professional (MCP) and Microsoft Certified Technology Specialist (MCTS). I am also the founder of The Code Project (www.codeproject.com), a large online community of software developers. I am the recipient of the Microsoft MVP award for 13 years in a row. I am the author of the best-selling book, C# 6.0 and the .NET 4.6 Framework (5th Edition), published by Addison-Wesley. I am the author of the best-selling book, C# 5.0 Unleashed, published by Sams Publishing. I am the author of the best-selling book, C# 4.0 Unleashed, published by Sams Publishing. I am the author of the best-selling book, ASP.NET 4.5 Unleashed, published by Sams Publishing. I am the author of the best-selling book, LINQ Unleashed, published by Sams Publishing. I am the author of the best-selling book, C# 3.0 Unleashed, published by S

Stop

Using AI Code Generation

1import "fmt"2func main() {3car1 := Car{Engine{5}}4car1.start()5car1.stop()6}7type Car struct {8}9func (c Car) start() {10fmt.Println("Car Started")11c.engine.start()12}13func (c Car) stop() {14fmt.Println("Car Stopped")15c.engine.stop()16}17type Engine struct {18}19func (e Engine) start() {20fmt.Println("Engine Started")21}22func (e Engine) stop() {23fmt.Println("Engine Stopped")24}25type interface_name interface {26}27import "fmt"28type Speed interface {29speed() int30}31type Car struct {32}33func (c Car) speed() int {34}35func main() {36car1 := Car{}37fmt.Println("Speed is", speed.speed())38}39type interface_name interface {

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