How to use SequentialResourcePool method of main Package

Best Syzkaller code snippet using main.SequentialResourcePool

manager.go

Source:manager.go

...282	maxReproVMs := vmCount - mgr.cfg.FuzzingVMs283	if instancesPerRepro > maxReproVMs && maxReproVMs > 0 {284		instancesPerRepro = maxReproVMs285	}286	instances := SequentialResourcePool(vmCount, 10*time.Second*mgr.cfg.Timeouts.Scale)287	runDone := make(chan *RunResult, 1)288	pendingRepro := make(map[*Crash]bool)289	reproducing := make(map[string]bool)290	var reproQueue []*Crash // ä¿åcrash291	reproDone := make(chan *ReproResult, 1)292	stopPending := false293	shutdown := vm.Shutdown294	for shutdown != nil || instances.Len() != vmCount {295		mgr.mu.Lock()296		phase := mgr.phase297		mgr.mu.Unlock()298		for crash := range pendingRepro {299			if reproducing[crash.Title] {300				continue301			}302			delete(pendingRepro, crash)303			if !mgr.needRepro(crash) {304				continue305			}306			log.Logf(1, "loop: add to repro queue '%v'", crash.Title)307			reproducing[crash.Title] = true308			reproQueue = append(reproQueue, crash)309		}310		log.Logf(1, "loop: phase=%v shutdown=%v instances=%v/%v %+v repro: pending=%v reproducing=%v queued=%v",311			phase, shutdown == nil, instances.Len(), vmCount, instances.Snapshot(),312			len(pendingRepro), len(reproducing), len(reproQueue))313		// å¤æå½åæ¯å¦æçå¾å¤ç°çcrash314		canRepro := func() bool {315			return phase >= phaseTriagedHub && len(reproQueue) != 0 &&316				(int(atomic.LoadUint32(&mgr.numReproducing))+1)*instancesPerRepro <= maxReproVMs317		}318		if shutdown != nil {319			for canRepro() { // å¯ä»¥å¤ç°ä¸æå©ä½çinstanceï¼åè¿è¡å¤ç°å·¥ä½320				vmIndexes := instances.Take(instancesPerRepro)321				if vmIndexes == nil {322					break323				}324				last := len(reproQueue) - 1325				crash := reproQueue[last]326				reproQueue[last] = nil327				reproQueue = reproQueue[:last]328				atomic.AddUint32(&mgr.numReproducing, 1)329				log.Logf(1, "loop: starting repro of '%v' on instances %+v", crash.Title, vmIndexes)330				go func() {331					reproDone <- mgr.runRepro(crash, vmIndexes, instances.Put)332				}()333			}334			for !canRepro() { // æ²¡æå¯å¤ç°çä½æ¯æå©ä½çinstanceï¼åè¿è¡fuzz335				idx := instances.TakeOne()336				if idx == nil {337					break338				}339				log.Logf(1, "loop: starting instance %v", *idx)340				go func() {341					crash, err := mgr.runInstance(*idx)342					runDone <- &RunResult{*idx, crash, err}343				}()344			}345		}346		var stopRequest chan bool347		if !stopPending && canRepro() {348			stopRequest = mgr.vmStop349		}350	wait:351		select {352		case <-instances.Freed:353			// An instance has been released.354		case stopRequest <- true:355			log.Logf(1, "loop: issued stop request")356			stopPending = true357		case res := <-runDone:358			log.Logf(1, "loop: instance %v finished, crash=%v", res.idx, res.crash != nil)359			if res.err != nil && shutdown != nil {360				log.Logf(0, "%v", res.err)361			}362			stopPending = false363			instances.Put(res.idx)364			// On shutdown qemu crashes with "qemu: terminating on signal 2",365			// which we detect as "lost connection". Don't save that as crash.366			if shutdown != nil && res.crash != nil {367				needRepro := mgr.saveCrash(res.crash)368				if needRepro {369					log.Logf(1, "loop: add pending repro for '%v'", res.crash.Title)370					pendingRepro[res.crash] = true371				}372			}373		case res := <-reproDone:374			atomic.AddUint32(&mgr.numReproducing, ^uint32(0))375			crepro := false376			title := ""377			if res.repro != nil {378				crepro = res.repro.CRepro379				title = res.repro.Report.Title380			}381			log.Logf(1, "loop: repro on %+v finished '%v', repro=%v crepro=%v desc='%v'",382				res.instances, res.report0.Title, res.repro != nil, crepro, title)383			if res.err != nil {384				log.Logf(0, "repro failed: %v", res.err)385			}386			delete(reproducing, res.report0.Title)387			if res.repro == nil {388				if !res.hub {389					mgr.saveFailedRepro(res.report0, res.stats)390				}391			} else {392				mgr.saveRepro(res)393			}394		case <-shutdown:395			log.Logf(1, "loop: shutting down...")396			shutdown = nil397		case crash := <-mgr.hubReproQueue:398			log.Logf(1, "loop: get repro from hub")399			pendingRepro[crash] = true400		case reply := <-mgr.needMoreRepros:401			reply <- phase >= phaseTriagedHub &&402				len(reproQueue)+len(pendingRepro)+len(reproducing) == 0403			goto wait404		case reply := <-mgr.reproRequest:405			repros := make(map[string]bool)406			for title := range reproducing {407				repros[title] = true408			}409			reply <- repros410			goto wait411		}412	}413}414func (mgr *Manager) runRepro(crash *Crash, vmIndexes []int, putInstances func(...int)) *ReproResult {415	features := mgr.checkResult.Features416	res, stats, err := repro.Run(crash.Output, mgr.cfg, features, mgr.reporter, mgr.vmPool, vmIndexes)417	ret := &ReproResult{418		instances: vmIndexes,419		report0:   crash.Report,420		repro:     res,421		stats:     stats,422		err:       err,423		hub:       crash.hub,424	}425	if err == nil && res != nil && mgr.cfg.StraceBin != "" {426		// We need only one instance to get strace output, release the rest.427		putInstances(vmIndexes[1:]...)428		defer putInstances(vmIndexes[0])429		const straceAttempts = 2430		for i := 1; i <= straceAttempts; i++ {431			strace := repro.RunStrace(res, mgr.cfg, mgr.reporter, mgr.vmPool, vmIndexes[0])432			sameBug := strace.IsSameBug(res)433			log.Logf(0, "strace run attempt %d/%d for '%s': same bug %v, error %v",434				i, straceAttempts, res.Report.Title, sameBug, strace.Error)435			// We only want to save strace output if it resulted in the same bug.436			// Otherwise, it will be hard to reproduce on syzbot and will confuse users.437			if sameBug {438				ret.strace = strace439				break440			}441		}442	} else {443		putInstances(vmIndexes...)444	}445	return ret446}447type ResourcePool struct {448	ids   []int449	mu    sync.RWMutex450	Freed chan interface{}451}452func SequentialResourcePool(count int, delay time.Duration) *ResourcePool {453	ret := &ResourcePool{Freed: make(chan interface{}, 1)}454	go func() {455		for i := 0; i < count; i++ {456			ret.Put(i)457			time.Sleep(delay)458		}459	}()460	return ret461}462func (pool *ResourcePool) Put(ids ...int) {463	pool.mu.Lock()464	defer pool.mu.Unlock()465	pool.ids = append(pool.ids, ids...)466	// Notify the listener....

SequentialResourcePool

Using AI Code Generation

1import (2func main() {3    app := iris.New()4    app.Get("/", func(ctx iris.Context) {5        ctx.HTML("Hello World!")6    })7    app.Run(iris.Addr(":8080"))8}9import (10func main() {11    app := iris.New()12    app.Get("/", func(ctx iris.Context) {13        ctx.HTML("Hello World!")14    })15    app.Run(iris.Addr(":8080"))16}17import (18func main() {19    app := iris.New()20    app.Get("/", func(ctx iris.Context) {21        ctx.HTML("Hello World!")22    })23    app.Run(iris.Addr(":8080"))24}25import (26func main() {27    app := iris.New()28    app.Get("/", func(ctx iris.Context) {29        ctx.HTML("Hello World!")30    })31    app.Run(iris.Addr(":8080"))32}33import (34func main() {35    app := iris.New()36    app.Get("/", func(ctx iris.Context) {37        ctx.HTML("Hello World!")38    })39    app.Run(iris.Addr(":8080"))40}41import (42func main() {43    app := iris.New()44    app.Get("/", func(ctx iris.Context) {45        ctx.HTML("Hello World!")46    })47    app.Run(iris.Addr(":8080"))48}49import (50func main() {

SequentialResourcePool

Using AI Code Generation

1import (2func main() {3	runtime.GOMAXPROCS(2)4	pool := NewResourcePool(2)5	for i := 0; i < 4; i++ {6		go func(jobId int) {7			resource, err := pool.Acquire()8			if err == nil {9				fmt.Println("Job", jobId, "started")10				time.Sleep(1 * time.Second)11				fmt.Println("Job", jobId, "finished")12				pool.Release(resource)13			} else {14				fmt.Println("Job", jobId, "failed to acquire resource")15			}16		}(i)17	}18	time.Sleep(5 * time.Second)19}20import (21func main() {22	runtime.GOMAXPROCS(2)23	pool := NewResourcePool(2)24	for i := 0; i < 4; i++ {25		go func(jobId int) {26			fmt.Println("Job", jobId, "started")27			time.Sleep(1 * time.Second)28			fmt.Println("Job", jobId, "finished")29		}(i)30	}31	time.Sleep(5 * time.Second)32}

SequentialResourcePool

Using AI Code Generation

1import (2func main() {3	runtime.GOMAXPROCS(1)4	pool := NewResourcePool(2)5	result := make(chan int, 10)6	jobs := make(chan int, 10)7	pool.Start()8	for i := 0; i < 10; i++ {9	}10	close(jobs)11	for i := 0; i < 10; i++ {12		go pool.SequentialResourcePool(jobs, result)13	}14	for i := 0; i < 10; i++ {15		fmt.Println(<-result)16	}17	pool.Stop()18}19import (20func main() {21	runtime.GOMAXPROCS(1)22	pool := NewResourcePool(2)23	result := make(chan int, 10)24	jobs := make(chan int, 10)25	pool.Start()26	for i := 0; i < 10; i++ {27	}28	close(jobs)29	for i := 0; i < 10; i++ {30		go pool.ConcurrentResourcePool(jobs, result)31	}32	for i := 0; i < 10; i++ {33		fmt.Println(<-result)34	}35	pool.Stop()36}37import (38func main() {39	runtime.GOMAXPROCS(1)

SequentialResourcePool

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    golresourcepool.SequentialResourcePool()5}6import (7func main() {8    fmt.Println("Hello, playground")9    golresourcepool.ConcurrentResourcePool()10}11import (12func main() {13    fmt.Println("Hello, playground")14    golresourcepool.ResourcePoolWithTimeout()15}16import (17func main() {18    fmt.Println("Hello, playground")19    golresourcepool.ResourcePoolWithTimeoutAndCancel()20}21import (22func main() {23    fmt.Println("Hello, playground")24    golresourcepool.ResourcePoolWithTimeoutAndCancelAndError()25}26import (27func main() {28    fmt.Println("Hello, playground")29    golresourcepool.ResourcePoolWithTimeoutAndCancelAndErrorAndWait()30}31import (32func main() {33    fmt.Println("Hello, playground")34    golresourcepool.ResourcePoolWithTimeoutAndCancelAndErrorAndWaitAndPanic()35}

SequentialResourcePool

Using AI Code Generation

1func main() {2    wg.Add(2)3    go func() {4        defer wg.Done()5        pool := &SequentialResourcePool{}6        resource, err := pool.Acquire()7        if err != nil {8            log.Println("Error Acquiring resource: ", err)9        }10        log.Println("Resource acquired: ", resource)11        pool.Release(resource)12    }()13    go func() {14        defer wg.Done()15        pool := &SequentialResourcePool{}16        resource, err := pool.Acquire()17        if err != nil {18            log.Println("Error Acquiring resource: ", err)19        }20        log.Println("Resource acquired: ", resource)21        pool.Release(resource)22    }()23    wg.Wait()24}25func main() {26    wg.Add(2)27    go func() {28        defer wg.Done()29        pool := &ParallelResourcePool{}30        resource, err := pool.Acquire()31        if err != nil {32            log.Println("Error Acquiring resource: ", err)33        }34        log.Println("Resource acquired: ", resource)35        pool.Release(resource)36    }()37    go func() {38        defer wg.Done()39        pool := &ParallelResourcePool{}40        resource, err := pool.Acquire()41        if err != nil {42            log.Println("Error Acquiring resource: ", err)43        }44        log.Println("Resource acquired: ", resource)45        pool.Release(resource)46    }()47    wg.Wait()48}

SequentialResourcePool

Using AI Code Generation

1import (2func main() {3    r := NewResourcePool(2)4    r.SequentialResourcePool()5    time.Sleep(1 * time.Second)6    fmt.Println("Main: exiting")7}8import (9func main() {10    r := NewResourcePool(2)11    r.ConcurrencyResourcePool()12    time.Sleep(1 * time.Second)13    fmt.Println("Main: exiting")14}15import (16func main() {17    r := NewResourcePool(2)18    r.ConcurrencyResourcePoolWithWaitGroup()19    time.Sleep(1 * time.Second)20    fmt.Println("Main: exiting")21}22import (23func main() {24    r := NewResourcePool(2)25    r.ConcurrencyResourcePoolWithWaitGroupAndMutex()26    time.Sleep(1 * time.Second)27    fmt.Println("Main: exiting")28}29import (30func main() {31    r := NewResourcePool(2)32    r.ConcurrencyResourcePoolWithWaitGroupAndMutexAndChannel()33    time.Sleep(1 * time.Second)34    fmt.Println("Main: exiting")35}36import (37func main() {38    r := NewResourcePool(2)39    r.ConcurrencyResourcePoolWithWaitGroupAndMutexAndChannelAndContext()40    time.Sleep(1 * time.Second)41    fmt.Println("Main: exiting")42}43import (

SequentialResourcePool

Using AI Code Generation

1import (2func main() {3	pool := NewResourcePool(5)4	resources := pool.Acquire(5)5	fmt.Println("Resources acquired: ", resources)6	pool.Release(resources)7	resources = pool.Acquire(3)8	fmt.Println("Resources acquired: ", resources)9	pool.Release(resources)10}11import (12func main() {13	pool := NewResourcePool(5)14	resources := pool.Acquire(5)15	fmt.Println("Resources acquired: ", resources)16	pool.Release(resources)17	resources = pool.Acquire(3)18	fmt.Println("Resources acquired: ", resources)19	pool.Release(resources)20}21import (22func main() {23	pool := NewResourcePool(5)24	resources := pool.Acquire(5)25	fmt.Println("Resources acquired: ", resources)26	pool.Release(resources)27	resources = pool.Acquire(3)28	fmt.Println("Resources acquired: ", resources)29	pool.Release(resources)30}

SequentialResourcePool

Using AI Code Generation

1import (2func main() {3	pool := NewResourcePool(2)4	r := &Resource{ID: 1}5	res, err := pool.Get(r)6	if err != nil {7		fmt.Println("Error getting resource:", err)8	}9	fmt.Println("got resource", res.ID)10	pool.Put(res)11	res, err = pool.Get(r)12	if err != nil {13		fmt.Println("Error getting resource:", err)14	}15	fmt.Println("got resource", res.ID)16	pool.Put(res)17	res, err = pool.Get(r)18	if err != nil {19		fmt.Println("Error getting resource:", err)20	}21	fmt.Println("got resource", res.ID)22	pool.Put(res)23	res, err = pool.Get(r)24	if err != nil {25		fmt.Println("Error getting resource:", err)26	}27	fmt.Println("got resource", res.ID)28	pool.Put(res)29	res, err = pool.Get(r)30	if err != nil {31		fmt.Println("Error getting resource:", err)32	}33	fmt.Println("got resource", res.ID)34	pool.Put(res)35	res, err = pool.Get(r)36	if err != nil {37		fmt.Println("Error getting resource:", err)38	}39	fmt.Println("got resource", res.ID)40	pool.Put(res)41	res, err = pool.Get(r)42	if err != nil {43		fmt.Println("Error getting resource:", err)44	}45	fmt.Println("got resource", res.ID)46	pool.Put(res)

SequentialResourcePool

Using AI Code Generation

1import (2func main() {3	instance := SequentialResourcePool{}4	instance.SequentialResourcePool()5}6import (7func main() {8	instance := SequentialResourcePool{}9	instance.SequentialResourcePool()10}11import (12func main() {13	instance := SequentialResourcePool{}14	instance.SequentialResourcePool()15}16import (17func main() {18	instance := SequentialResourcePool{}19	instance.SequentialResourcePool()20}21import (22func main() {23	instance := SequentialResourcePool{}24	instance.SequentialResourcePool()25}26import (27func main() {28	instance := SequentialResourcePool{}

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