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How to use Close method of vm Package

Best Syzkaller code snippet using vm.Close

vm_server.go

Source:vm_server.go

...32// VMServer is a VM that is managed over RPC.33type VMServer struct {34	vm     block.ChainVM35	broker *plugin.GRPCBroker36	serverCloser grpcutils.ServerCloser37	conns        []*grpc.ClientConn38	ctx      *snow.Context39	toEngine chan common.Message40}41// NewServer returns a vm instance connected to a remote vm instance42func NewServer(vm block.ChainVM, broker *plugin.GRPCBroker) *VMServer {43	return &VMServer{44		vm:     vm,45		broker: broker,46	}47}48// Initialize ...49func (vm *VMServer) Initialize(_ context.Context, req *vmproto.InitializeRequest) (*vmproto.InitializeResponse, error) {50	subnetID, err := ids.ToID(req.SubnetID)51	if err != nil {52		return nil, err53	}54	chainID, err := ids.ToID(req.ChainID)55	if err != nil {56		return nil, err57	}58	nodeID, err := ids.ToShortID(req.NodeID)59	if err != nil {60		return nil, err61	}62	xChainID, err := ids.ToID(req.XChainID)63	if err != nil {64		return nil, err65	}66	avaxAssetID, err := ids.ToID(req.AvaxAssetID)67	if err != nil {68		return nil, err69	}70	dbConn, err := vm.broker.Dial(req.DbServer)71	if err != nil {72		return nil, err73	}74	msgConn, err := vm.broker.Dial(req.EngineServer)75	if err != nil {76		// Ignore DB closing error to return the original error77		_ = dbConn.Close()78		return nil, err79	}80	keystoreConn, err := vm.broker.Dial(req.KeystoreServer)81	if err != nil {82		// Ignore closing error to return the original error83		_ = dbConn.Close()84		_ = msgConn.Close()85		return nil, err86	}87	sharedMemoryConn, err := vm.broker.Dial(req.SharedMemoryServer)88	if err != nil {89		// Ignore closing error to return the original error90		_ = dbConn.Close()91		_ = msgConn.Close()92		_ = keystoreConn.Close()93		return nil, err94	}95	bcLookupConn, err := vm.broker.Dial(req.BcLookupServer)96	if err != nil {97		// Ignore closing error to return the original error98		_ = dbConn.Close()99		_ = msgConn.Close()100		_ = keystoreConn.Close()101		_ = sharedMemoryConn.Close()102		return nil, err103	}104	snLookupConn, err := vm.broker.Dial(req.SnLookupServer)105	if err != nil {106		// Ignore closing error to return the original error107		_ = dbConn.Close()108		_ = msgConn.Close()109		_ = keystoreConn.Close()110		_ = sharedMemoryConn.Close()111		_ = bcLookupConn.Close()112		return nil, err113	}114	dbClient := rpcdb.NewClient(rpcdbproto.NewDatabaseClient(dbConn))115	msgClient := messenger.NewClient(messengerproto.NewMessengerClient(msgConn))116	keystoreClient := gkeystore.NewClient(gkeystoreproto.NewKeystoreClient(keystoreConn), vm.broker)117	sharedMemoryClient := gsharedmemory.NewClient(gsharedmemoryproto.NewSharedMemoryClient(sharedMemoryConn))118	bcLookupClient := galiaslookup.NewClient(galiaslookupproto.NewAliasLookupClient(bcLookupConn))119	snLookupClient := gsubnetlookup.NewClient(gsubnetlookupproto.NewSubnetLookupClient(snLookupConn))120	toEngine := make(chan common.Message, 1)121	go func() {122		for msg := range toEngine {123			// Nothing to do with the error within the goroutine124			_ = msgClient.Notify(msg)125		}126	}()127	vm.ctx = &snow.Context{128		NetworkID:           req.NetworkID,129		SubnetID:            subnetID,130		ChainID:             chainID,131		NodeID:              nodeID,132		XChainID:            xChainID,133		AVAXAssetID:         avaxAssetID,134		Log:                 logging.NoLog{},135		DecisionDispatcher:  nil,136		ConsensusDispatcher: nil,137		Keystore:            keystoreClient,138		SharedMemory:        sharedMemoryClient,139		BCLookup:            bcLookupClient,140		SNLookup:            snLookupClient,141	}142	if err := vm.vm.Initialize(vm.ctx, dbClient, req.GenesisBytes, toEngine, nil); err != nil {143		// Ignore errors closing resources to return the original error144		_ = dbConn.Close()145		_ = msgConn.Close()146		_ = keystoreConn.Close()147		_ = sharedMemoryConn.Close()148		_ = bcLookupConn.Close()149		_ = snLookupConn.Close()150		close(toEngine)151		return nil, err152	}153	vm.conns = append(vm.conns, dbConn)154	vm.conns = append(vm.conns, msgConn)155	vm.toEngine = toEngine156	lastAccepted := vm.vm.LastAccepted()157	return &vmproto.InitializeResponse{158		LastAcceptedID: lastAccepted[:],159	}, nil160}161// Bootstrapping ...162func (vm *VMServer) Bootstrapping(context.Context, *vmproto.BootstrappingRequest) (*vmproto.BootstrappingResponse, error) {163	return &vmproto.BootstrappingResponse{}, vm.vm.Bootstrapping()164}165// Bootstrapped ...166func (vm *VMServer) Bootstrapped(context.Context, *vmproto.BootstrappedRequest) (*vmproto.BootstrappedResponse, error) {167	vm.ctx.Bootstrapped()168	return &vmproto.BootstrappedResponse{}, vm.vm.Bootstrapped()169}170// Shutdown ...171func (vm *VMServer) Shutdown(context.Context, *vmproto.ShutdownRequest) (*vmproto.ShutdownResponse, error) {172	if vm.toEngine == nil {173		return &vmproto.ShutdownResponse{}, nil174	}175	errs := wrappers.Errs{}176	errs.Add(vm.vm.Shutdown())177	close(vm.toEngine)178	vm.serverCloser.Stop()179	for _, conn := range vm.conns {180		errs.Add(conn.Close())181	}182	return &vmproto.ShutdownResponse{}, errs.Err183}184// CreateHandlers ...185func (vm *VMServer) CreateHandlers(_ context.Context, req *vmproto.CreateHandlersRequest) (*vmproto.CreateHandlersResponse, error) {186	handlers := vm.vm.CreateHandlers()187	resp := &vmproto.CreateHandlersResponse{}188	for prefix, h := range handlers {189		handler := h190		// start the messenger server191		serverID := vm.broker.NextId()192		go vm.broker.AcceptAndServe(serverID, func(opts []grpc.ServerOption) *grpc.Server {193			server := grpc.NewServer(opts...)194			vm.serverCloser.Add(server)195			ghttpproto.RegisterHTTPServer(server, ghttp.NewServer(handler.Handler, vm.broker))196			return server197		})198		resp.Handlers = append(resp.Handlers, &vmproto.Handler{199			Prefix:      prefix,200			LockOptions: uint32(handler.LockOptions),201			Server:      serverID,202		})203	}204	return resp, nil205}206// BuildBlock ...207func (vm *VMServer) BuildBlock(_ context.Context, _ *vmproto.BuildBlockRequest) (*vmproto.BuildBlockResponse, error) {208	blk, err := vm.vm.BuildBlock()...

GoLua.go

Source:GoLua.go

...50}51func (this *GoLua) GetName() string {52	return this.name53}54func (this *GoLua) Close() {55	if !atomic.CompareAndSwapUint32(&this.closed, 0, 1) {56		return57	}58	func() {59		for {60			select {61			case vm := <-this.vmpool:62				vm.Destroy()63			default:64				return65			}66		}67	}()68	close(this.vmpool)69	this.serviceMutex.Lock()70	tmp := this.services71	this.services = make(map[string]interface{})72	this.serviceMutex.Unlock()73	for k, o := range tmp {74		closed := false75		if tc, ok := o.(SupportTryClose); ok {76			closed = tc.TryClose()77		} else {78			closed = doClose(o)79		}80		if closed {81			if logger.EnableDebug(tag) {82				s := k83				idx := strings.Index(s, "!!")84				if idx != -1 {85					s = s[:idx] + "..."86				}87				logger.Debug(tag, "%s shutdown service '%s'", this, s)88			}89		}90	}91}92func (this *GoLua) String() string {93	return fmt.Sprintf("GoLua[%s]", this.name)94}95func (this *GoLua) newVM() (*VM, error) {96	err := this.CheckClose()97	if err != nil {98		return nil, err99	}100	atomic.AddUint32(&this.vmid, 1)101	vm := newVM(this, this.vmid)102	if this.cfg != nil {103		vm.Setup(this.cfg)104	}105	return vm, nil106}107func (this *GoLua) CreateVM() (*VM, error) {108	vm, err := this.newVM()109	if err != nil {110		return nil, err111	}112	vm.name = fmt.Sprintf("%s:%d", this.name, vm.id)113	st := newVMStack(nil)114	st.chunkName = fmt.Sprintf("VM<%s>", vm.name)115	vm.initStack(st)116	logger.Debug(tag, "createVM -> %s", vm)117	return vm, nil118}119func (this *GoLua) GetVM() (*VM, error) {120	err := this.CheckClose()121	if err != nil {122		return nil, err123	}124	vm, err1 := func() (*VM, error) {125		select {126		case vm := <-this.vmpool:127			if vm != nil {128				logger.Debug(tag, "%s leave pool", vm)129				vm.ResetExecutionTime()130				return vm, nil131			}132		default:133		}134		return this.CreateVM()135	}()136	if err1 != nil {137		return nil, err1138	}139	if this.DevMode {140		this.dgMutex.RLock()141		l := len(this.breakpoints)142		this.dgMutex.RUnlock()143		if l > 0 {144			vm.DebugSet(3)145		}146	}147	return vm, nil148}149func (this *GoLua) ReturnVM(vm *VM) {150	defer func() {151		x := recover()152		if x != nil {153			vm.Destroy()154		}155	}()156	if !this.IsClose() {157		select {158		case this.vmpool <- vm:159			logger.Debug(tag, "%s return pool", vm)160			return161		default:162		}163	}164	vm.Destroy()165}166func (this *GoLua) CheckClose() error {167	if atomic.LoadUint32(&this.closed) == 1 {168		return fmt.Errorf("%s closed", this)169	}170	return nil171}172func (this *GoLua) IsClose() bool {173	return atomic.LoadUint32(&this.closed) == 1174}...

Using AI Code Generation

1import (2func main() {3	vm := otto.New()4	vm.Set("hello", func(call otto.FunctionCall) otto.Value {5		fmt.Println("Hello, World!")6		return otto.Value{}7	})8	vm.Run(`9    hello();10	vm.Close()11	vm.Run(`12    hello();13}14import (15func main() {16	vm := otto.New()17	vm.Set("hello", func(call otto.FunctionCall) otto.Value {18		fmt.Println("Hello, World!")19		return otto.Value{}20	})21	vm.Run(`22    hello();23	vm.Close()24	vm.Run(`25    hello();26}27import (28func main() {29	vm := otto.New()30	vm.Set("hello", func(call otto.FunctionCall) otto.Value {31		fmt.Println("Hello, World!")32		return otto.Value{}33	})34	vm.Run(`35    hello();36	vm.Close()37	vm.Run(`38    hello();39}40import (41func main() {42	vm := otto.New()43	vm.Set("hello",

Using AI Code Generation

1import (2func main() {3    vmConfig := vm.Config{4        Tracer: vm.NewJSONLogger(&vm.LogConfig{}, nil),5    }6    vmEnv := vm.NewEVM(vm.Context{}, nil, params.TestChainConfig, vmConfig)7    vmEnv.Close()8    fmt.Println("vmEnv closed")9}10import (11func main() {12    vmConfig := vm.Config{13        Tracer: vm.NewJSONLogger(&vm.LogConfig{}, nil),14    }15    vmEnv := vm.NewEVM(vm.Context{}, nil, params.TestChainConfig, vmConfig)16    vmEnv.Stop()17    fmt.Println("vmEnv stopped")18}19import (20func main() {21    vmConfig := vm.Config{22        Tracer: vm.NewJSONLogger(&vm.LogConfig{}, nil),23    }24    vmEnv := vm.NewEVM(vm.Context{}, nil, params.TestChainConfig, vmConfig)25    vmEnv.Call(nil, common.HexToAddress("0x0"), nil, 100000, nil, nil)26    fmt.Println("vmEnv called")27}28import (29func main() {30    vmConfig := vm.Config{31        Tracer: vm.NewJSONLogger(&vm.LogConfig{}, nil),32    }33    vmEnv := vm.NewEVM(vm.Context{}, nil, params.TestChainConfig, vmConfig)

Using AI Code Generation

1import (2func main() {3	vm := otto.New()4	file, _ := os.Create("test.txt")5	vm.Set("file", file)6	vm.Run(`7		file.write("Hello World");8		file.close();9}10import (11func main() {12	vm := otto.New()13	file, _ := os.Create("test.txt")14	vm.Set("file", file)15	vm.Run(`16		file.write("Hello World");17		file.close();18}19import (20func main() {21	vm := otto.New()22	file, _ := os.Create("test.txt")23	vm.Set("file", file)24	vm.Run(`25		file.write("Hello World");26		file.close();27}28import (29func main() {30	vm := otto.New()31	file, _ := os.Create("test.txt")32	vm.Set("file", file)33	vm.Run(`34		file.write("Hello World");35		file.close();36}37import (38func main() {39	vm := otto.New()40	file, _ := os.Create("test.txt")41	vm.Set("file", file)42	vm.Run(`43		file.write("Hello World");44		file.close();45}46import (47func main() {48	vm := otto.New()49	file, _ := os.Create("test.txt")50	vm.Set("file", file)51	vm.Run(`52		file.write("Hello World");53		file.close();54}

Using AI Code Generation

1import (2func main() {3	vm := js.Global.Get("vm")4	script := vm.Call("createScript", "var a = 10; var b = 20; a + b", "test.vm")5	result := script.Call("runInThisContext")6	fmt.Println("Result:", result)7	script.Call("close")8	result = script.Call("runInThisContext")9	fmt.Println("Result:", result)10}11import (12func main() {13	vm := js.Global.Get("vm")14	script := vm.Call("createScript", "var a = 10; var b = 20; a + b", "test.vm")15	result := script.Call("runInNewContext")16	fmt.Println("Result:", result)17	script.Call("close")18	result = script.Call("runInNewContext")19	fmt.Println("Result:", result)20}21import (22func main() {23	vm := js.Global.Get("vm")24	context := vm.Call("createContext")25	script := vm.Call("createScript", "var a = 10; var b = 20; a + b", "test.vm")26	result := script.Call("runInContext", context)27	fmt.Println("Result:", result)28	script.Call("close")29	result = script.Call("runInContext", context)30	fmt.Println("Result:", result)31}32import (33func main() {34	vm := js.Global.Get("vm")35	script := vm.Call("createScript", "var a = 10; var b = 20; a + b", "test.vm")36	result := script.Call("runInThisContext")37	fmt.Println("Result:", result)38	script.Call("

Using AI Code Generation

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

Using AI Code Generation

1import (2func main() {3	vm := new(common.VM)4	vm.Close()5	fmt.Println("Close method of vm class")6}7import (8func main() {9	vmrun := new(common.VMRun)10	vmrun.Close()11	fmt.Println("Close method of vmrun class")12}13import (14func main() {15	vmx := new(common.VMX)16	vmx.Close()17	fmt.Println("Close method of vmx class")18}19import (20func main() {21	vmx_data := new(common.VMXData)22	vmx_data.Close()23	fmt.Println("Close method of vmx_data struct")24}25import (26func main() {27	vmx_path := new(common.VMXPath)28	vmx_path.Close()29	fmt.Println("Close method of vmx_path struct")30}31import (

Using AI Code Generation

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

Using AI Code Generation

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

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