How to use NextExchange method of main Package

Best Syzkaller code snippet using main.NextExchange

rpcserver.go

Source:rpcserver.go

...75		srv.cond.Signal()76	}77	return nil78}79// NextExchange is called when a Runner requests a new program to execute and,80// potentially, wants to send a new Result to the RPCServer.81func (srv *RPCServer) NextExchange(a *rpctype.NextExchangeArgs, r *rpctype.NextExchangeRes) error {82	srv.mu.Lock()83	defer srv.mu.Unlock()84	var res *ExecResult85	var prog *progInfo86	if a.Info.Calls != nil {87		res = &ExecResult{88			Pool:   a.Pool,89			Hanged: a.Hanged,90			Info:   a.Info,91			RunIdx: a.RunIdx,92		}93		prog = srv.progs[a.ProgIdx]94		if prog == nil {95			// This case can happen if both conditions are true:96			// 1. a Runner calls Verifier.NextExchange, then crashes,97			// its corresponding Pool being the only one that hasn't98			// sent results for the program yet99			// 2.the cleanup call for the crash got the server's mutex before100			// the NextExchange call.101			// As the pool was the only one that hasn't sent the result, the102			// cleanup call has already removed prog from srv.progs by the time103			// the NextExchange call gets the server's mutex, which is why the104			// variable is nil. As the results for this program have already105			// been sent for verification, we discard this one.106			return nil107		}108		delete(srv.pools[a.Pool].runners[a.VM], prog.idx)109		if srv.newResult(res, prog) {110			if srv.vrf.processResults(prog) {111				delete(srv.progs, prog.idx)112			}113		}114	}115	if srv.notChecked > 0 {116		// Runner is blocked until the choice table is created.117		srv.cond.Wait()...

runner.go

Source:runner.go

...79		if err := vrf.Call("Verifier.UpdateUnsupported", a, nil); err != nil {80			log.Fatalf("failed to send unsupported system calls: %v", err)81		}82	}83	res := &rpctype.NextExchangeRes{}84	if err := rn.vrf.Call("Verifier.NextExchange", &rpctype.NextExchangeArgs{Pool: rn.pool, VM: rn.vm}, res); err != nil {85		log.Fatalf("failed to get initial program: %v", err)86	}87	rn.Run(res.Prog, res.ID)88}89// Run is responsible for requesting new programs from the verifier, executing them and then sending back the Result.90// TODO: Implement functionality to execute several programs at once and send back a slice of results.91func (rn *Runner) Run(firstProg []byte, taskID int64) {92	p, id := firstProg, taskID93	env, err := ipc.MakeEnv(rn.config, 0)94	if err != nil {95		log.Fatalf("failed to create initial execution environment: %v", err)96	}97	for {98		prog, err := rn.target.Deserialize(p, prog.NonStrict)99		if err != nil {100			log.Fatalf("failed to deserialise new program: %v", err)101		}102		log.Printf("executing program") // watchdog for monitor103		_, info, hanged, err := env.Exec(rn.opts, prog)104		if err != nil {105			log.Fatalf("failed to execute the program: %v", err)106		}107		a := &rpctype.NextExchangeArgs{108			Pool:       rn.pool,109			VM:         rn.vm,110			Hanged:     hanged,111			Info:       *info,112			ExecTaskID: id,113		}114		r := &rpctype.NextExchangeRes{}115		if err := rn.vrf.Call("Verifier.NextExchange", a, r); err != nil {116			log.Fatalf("failed to make exchange with verifier: %v", err)117		}118		p, id = r.Prog, r.ID119		if !rn.newEnv {120			continue121		}122		err = env.Close()123		if err != nil {124			log.Fatalf("failed to close the execution environment: %v", err)125		}126		env, err = ipc.MakeEnv(rn.config, 0)127		if err != nil {128			log.Fatalf("failed to create new execution environmentL %v", err)129		}...

NextExchange

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    var arr = []int{1, 2, 3, 4, 5, 6, 7, 8, 9}5    var n = len(arr)6    var newarr = make([]int, n)7    for i := 0; i < n; i++ {8        newarr[i] = arr[(i+k)%n]9    }10    fmt.Println(newarr)11}

NextExchange

Using AI Code Generation

1import (2func main() {3	table := simpletable.New()4	table.Header = &simpletable.Header{5		Cells: []*simpletable.Cell{6			{Align: simpletable.AlignCenter, Text: "Header 1"},7			{Align: simpletable.AlignCenter, Text: "Header 2"},8			{Align: simpletable.AlignCenter, Text: "Header 3"},9		},10	}11	table.Body.Cells = append(table.Body.Cells, []*simpletable.Cell{12		{Align: simpletable.AlignRight, Text: "1"},13		{Align: simpletable.AlignRight, Text: "2"},14		{Align: simpletable.AlignRight, Text: "3"},15	})16	table.Body.Cells = append(table.Body.Cells, []*simpletable.Cell{17		{Align: simpletable.AlignRight, Text: "4"},18		{Align: simpletable.AlignRight, Text: "5"},19		{Align: simpletable.AlignRight, Text: "6"},20	})21	table.Body.Cells = append(table.Body.Cells, []*simpletable.Cell{22		{Align: simpletable.AlignRight, Text: "7"},23		{Align: simpletable.AlignRight, Text: "8"},24		{Align: simpletable.AlignRight, Text: "9"},25	})26	table.SetStyle(simpletable.StyleCompactLite)27	fmt.Println(table.String())28}29import (30func main() {31	table := simpletable.New()

NextExchange

Using AI Code Generation

1import (2func main() {3    vm := otto.New()4    vm.Run(`5        var main = {6            NextExchange: function() {7                return 1;8            }9        };10    value, _ := vm.Run(`11        main.NextExchange();12    fmt.Println(value)13}14func main() {15    vm := otto.New()16    vm.Set("add", func(call otto.FunctionCall) otto.Value {17        a, _ := call.Argument(0).ToInteger()18        b, _ := call.Argument(1).ToInteger()19        return otto.Value{}20    })21    vm.Run(`22        var add2 = add(2);23    value, _ := vm.Run(`24        add2(3);25    fmt.Println(value)26}27func main() {28    vm := otto.New()29    vm.Set("add", func(call otto.FunctionCall) otto.Value {30        a, _ := call.Argument(0).ToInteger()31        b, _ := call.Argument(1).ToInteger()32        return call.Otto.ToValue(c)33    })34    vm.Run(`35        var add2 = add(2);36    value, _ := vm.Run(`37        add2(3);38    fmt.Println(value)39}

NextExchange

Using AI Code Generation

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

NextExchange

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World!")4	exchange := ExchangeRate.NextExchange()5	fmt.Println("Next Exchange:", exchange)6}7func NextExchange() float64 {8	if len(ExchangeList) == 0 {9		UpdateExchangeRate()10	}11}12func GetExchangeList() []float64 {13	if len(ExchangeList) == 0 {14		UpdateExchangeRate()15	}16}17func GetExchangeRate() float64 {18	if len(ExchangeList) == 0 {19		UpdateExchangeRate()20	}21}22func UpdateExchangeRate() {23	UpdateExchangeList()24}

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