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How to use resourceCentric method of prog Package

Best Syzkaller code snippet using prog.resourceCentric

rand.go

Source:rand.go

...610	return typ.generate(r, s, dir)611}612func (a *ResourceType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {613	if !r.inGenerateResource {614		// Don't allow recursion for resourceCentric/createResource.615		// That can lead to generation of huge programs and may be very slow616		// (esp. if we are generating some failing attempts in createResource already).617		r.inGenerateResource = true618		defer func() { r.inGenerateResource = false }()619		if r.oneOf(4) {620			arg, calls = r.resourceCentric(s, a, dir)621			if arg != nil {622				return623			}624		}625		if r.oneOf(3) {626			arg, calls = r.createResource(s, a, dir)627			if arg != nil {628				return629			}630		}631	}632	if r.nOutOf(9, 10) {633		arg = r.existingResource(s, a, dir)634		if arg != nil {635			return636		}637	}638	special := a.SpecialValues()639	arg = MakeResultArg(a, dir, nil, special[r.Intn(len(special))])640	return641}642func (a *BufferType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {643	switch a.Kind {644	case BufferBlobRand, BufferBlobRange:645		sz := r.randBufLen()646		if a.Kind == BufferBlobRange {647			sz = r.randRange(a.RangeBegin, a.RangeEnd)648		}649		if dir == DirOut {650			return MakeOutDataArg(a, dir, sz), nil651		}652		data := make([]byte, sz)653		for i := range data {654			data[i] = byte(r.Intn(256))655		}656		return MakeDataArg(a, dir, data), nil657	case BufferString:658		data := r.randString(s, a)659		if dir == DirOut {660			return MakeOutDataArg(a, dir, uint64(len(data))), nil661		}662		return MakeDataArg(a, dir, data), nil663	case BufferFilename:664		if dir == DirOut {665			var sz uint64666			switch {667			case !a.Varlen():668				sz = a.Size()669			case r.nOutOf(1, 3):670				sz = r.rand(100)671			case r.nOutOf(1, 2):672				sz = 108 // UNIX_PATH_MAX673			default:674				sz = 4096 // PATH_MAX675			}676			return MakeOutDataArg(a, dir, sz), nil677		}678		return MakeDataArg(a, dir, []byte(r.filename(s, a))), nil679	case BufferGlob:680		return MakeDataArg(a, dir, r.randString(s, a)), nil681	case BufferText:682		if dir == DirOut {683			return MakeOutDataArg(a, dir, uint64(r.Intn(100))), nil684		}685		return MakeDataArg(a, dir, r.generateText(a.Text)), nil686	default:687		panic("unknown buffer kind")688	}689}690func (a *VmaType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {691	npages := r.randPageCount()692	if a.RangeBegin != 0 || a.RangeEnd != 0 {693		npages = a.RangeBegin + uint64(r.Intn(int(a.RangeEnd-a.RangeBegin+1)))694	}695	return r.allocVMA(s, a, dir, npages), nil696}697func (a *FlagsType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {698	return MakeConstArg(a, dir, r.flags(a.Vals, a.BitMask, 0)), nil699}700func (a *ConstType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {701	return MakeConstArg(a, dir, a.Val), nil702}703func (a *IntType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {704	bits := a.TypeBitSize()705	v := r.randInt(bits)706	switch a.Kind {707	case IntRange:708		v = r.randRangeInt(a.RangeBegin, a.RangeEnd, bits, a.Align)709	}710	return MakeConstArg(a, dir, v), nil711}712func (a *ProcType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {713	return MakeConstArg(a, dir, r.rand(int(a.ValuesPerProc))), nil714}715func (a *ArrayType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {716	var count uint64717	switch a.Kind {718	case ArrayRandLen:719		count = r.randArrayLen()720	case ArrayRangeLen:721		count = r.randRange(a.RangeBegin, a.RangeEnd)722	}723	// The resource we are trying to generate may be in the array elements, so create at least 1.724	if r.inGenerateResource && count == 0 {725		count = 1726	}727	var inner []Arg728	for i := uint64(0); i < count; i++ {729		arg1, calls1 := r.generateArg(s, a.Elem, dir)730		inner = append(inner, arg1)731		calls = append(calls, calls1...)732	}733	return MakeGroupArg(a, dir, inner), calls734}735func (a *StructType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {736	args, calls := r.generateArgs(s, a.Fields, dir)737	group := MakeGroupArg(a, dir, args)738	return group, calls739}740func (a *UnionType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {741	index := r.Intn(len(a.Fields))742	optType, optDir := a.Fields[index].Type, a.Fields[index].Dir(dir)743	opt, calls := r.generateArg(s, optType, optDir)744	return MakeUnionArg(a, dir, opt, index), calls745}746func (a *PtrType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {747	// The resource we are trying to generate may be in the pointer,748	// so don't try to create an empty special pointer during resource generation.749	if !r.inGenerateResource && r.oneOf(1000) {750		index := r.rand(len(r.target.SpecialPointers))751		return MakeSpecialPointerArg(a, dir, index), nil752	}753	inner, calls := r.generateArg(s, a.Elem, a.ElemDir)754	arg = r.allocAddr(s, a, dir, inner.Size(), inner)755	return arg, calls756}757func (a *LenType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {758	// Updated later in assignSizesCall.759	return MakeConstArg(a, dir, 0), nil760}761func (a *CsumType) generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call) {762	// Filled at runtime by executor.763	return MakeConstArg(a, dir, 0), nil764}765func (r *randGen) existingResource(s *state, res *ResourceType, dir Dir) Arg {766	alltypes := make([][]*ResultArg, 0, len(s.resources))767	for _, res1 := range s.resources {768		alltypes = append(alltypes, res1)769	}770	sort.Slice(alltypes, func(i, j int) bool {771		return alltypes[i][0].Type().Name() < alltypes[j][0].Type().Name()772	})773	var allres []*ResultArg774	for _, res1 := range alltypes {775		name1 := res1[0].Type().Name()776		if r.target.isCompatibleResource(res.Desc.Name, name1) ||777			r.oneOf(50) && r.target.isCompatibleResource(res.Desc.Kind[0], name1) {778			allres = append(allres, res1...)779		}780	}781	if len(allres) == 0 {782		return nil783	}784	return MakeResultArg(res, dir, allres[r.Intn(len(allres))], 0)785}786// Finds a compatible resource with the type `t` and the calls that initialize that resource.787func (r *randGen) resourceCentric(s *state, t *ResourceType, dir Dir) (arg Arg, calls []*Call) {788	var p *Prog789	var resource *ResultArg790	for idx := range r.Perm(len(s.corpus)) {791		p = s.corpus[idx].Clone()792		resources := getCompatibleResources(p, t.TypeName, r)793		if len(resources) > 0 {794			resource = resources[r.Intn(len(resources))]795			break796		}797	}798	// No compatible resource was found.799	if resource == nil {800		return nil, nil801	}...

resourceCentric

Using AI Code Generation

1import (2func main() {3    f, err := os.Open("test.txt")4    if err != nil {5        fmt.Println(err)6    }7    defer f.Close()8    buf := make([]byte, 1024)9    for {10        n, err := f.Read(buf)11        if err != nil {12            fmt.Println(err)13        }14        if n == 0 {15        }16        fmt.Println(string(buf[:n]))17    }18}19import (20func main() {21    f, err := os.Open("test.txt")22    if err != nil {23        fmt.Println(err)24    }25    defer f.Close()26    buf := make([]byte, 1024)27    for {28        n, err := f.Read(buf)29        if err != nil {30            fmt.Println(err)31        }32        if n == 0 {33        }34        fmt.Println(string(buf[:n]))35    }36}37import (38func main() {39    f, err := os.Open("test.txt")40    if err != nil {41        fmt.Println(err)42    }43    defer f.Close()44    buf := make([]byte, 1024)45    for {46        n, err := f.Read(buf)47        if err != nil {48            fmt.Println(err)49        }50        if n == 0 {51        }52        fmt.Println(string(buf[:n]))53    }54}55import (56func main() {57    f, err := os.Open("test.txt")58    if err != nil {59        fmt.Println(err)60    }61    defer f.Close()62    buf := make([]byte, 1024)63    for {64        n, err := f.Read(buf)65        if err != nil {66            fmt.Println(err)67        }68        if n == 0 {69        }70        fmt.Println(string

resourceCentric

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World")4	prog.ResourceCentric()5}6import "fmt"7func ResourceCentric() {8	fmt.Println("Hello ResourceCentric")9}10        /usr/lib/go-1.6/src/prog (from $GOROOT)11        /home/username/go/src/prog (from $GOPATH)12        /usr/lib/go-1.6/src/prog (from $GOROOT)13        /home/username/go/src/prog (from $GOPATH)14        /usr/lib/go-1.6/src/prog (from $GOROOT)15        /home/username/go/src/prog (from $GOPATH)16        /usr/lib/go-1.6/src/prog (from $GOROOT)17        /home/username/go/src/prog (from $GOPATH)18        /usr/lib/go-1.6/src/prog (from $GOROOT)19        /home/username/go/src/prog (from $GOPATH)20        /usr/lib/go-1.6/src/prog (from $GOROOT)21        /home/username/go/src/prog (from $GOPATH)22        /usr/lib/go-1.6/src/prog (from $GOROOT)23        /home/username/go/src/prog (from $GOPATH)24import (

resourceCentric

Using AI Code Generation

1import (2func main() {3	prog := NewProgram()4	res := NewResource()5	prog.resourceCentric(res)6}7import (8func main() {9	prog := NewProgram()10	res := NewResource()11	prog.resourceCentric(res)12}13import (14func main() {15	prog := NewProgram()16	res := NewResource()17	prog.resourceCentric(res)18}19import (20func main() {21	prog := NewProgram()22	res := NewResource()23	prog.resourceCentric(res)24}25import (26func main() {27	prog := NewProgram()28	res := NewResource()29	prog.resourceCentric(res)30}31import (32func main() {33	prog := NewProgram()34	res := NewResource()35	prog.resourceCentric(res)36}37import (38func main() {39	prog := NewProgram()

resourceCentric

Using AI Code Generation

1import (2func main() {3    p := program.New()4    p.ResourceCentric()5    fmt.Println("Using Resource Centric Method")6}7import (8func main() {9    p := program.New()10    p.ObjectCentric()11    fmt.Println("Using Object Centric Method")12}13import (14func main() {15    p := program.New()16    p.ResourceCentric()17    fmt.Println("Using Resource Centric Method")18}19import (20func main() {21    p := program.New()22    p.ObjectCentric()23    fmt.Println("Using Object Centric Method")24}25import (26func main() {27    p := program.New()28    p.ResourceCentric()29    fmt.Println("Using Resource Centric Method")30}31import (32func main() {33    p := program.New()34    p.ObjectCentric()35    fmt.Println("Using Object Centric Method")36}37import (38func main() {39    p := program.New()40    p.ResourceCentric()41    fmt.Println("Using Resource Centric Method")42}43import (44func main() {

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