How to use GetTuple method of lib Package

Best K6 code snippet using lib.GetTuple

execution_segment.go

Source:execution_segment.go Github

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...546func (essw *ExecutionSegmentSequenceWrapper) GetStripedOffsets(segmentIndex int) (int64, []int64, int64) {547 offsets := essw.offsets[segmentIndex]548 return offsets[0], offsets[1:], essw.lcd549}550// GetTuple returns an ExecutionTuple for the specified segment index.551func (essw *ExecutionSegmentSequenceWrapper) GetTuple(segmentIndex int) *ExecutionTuple {552 return &ExecutionTuple{553 Sequence: essw,554 Segment: essw.ExecutionSegmentSequence[segmentIndex],555 SegmentIndex: segmentIndex,556 }557}558// GetNewExecutionSegmentSequenceFromValue uses the value provided, splits it559// between all the segments, using the striping offsets in the sequence,560// generating a new segment sequence. It then returns a new561// ExecutionSegmentSequenceWrapper, with the new sequence and segments, such562// that each new segment in the new sequence has length `Scale(value)/value`563// while keeping the order.564//565// Additionally, the position of a given segment index can be tracked (since...

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main.go

Source:main.go Github

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1package main2import (3 "fmt"4 "io/ioutil"5 "log"6 "math/rand"7 "net"8 "os"9 "path/filepath"10 "strings"11 "syscall"12 "time"13 "github.com/docopt/docopt-go"14 "github.com/reconquest/executil-go"15 "github.com/reconquest/ser-go"16)17const (18 containerSuffix = `.hastur`19 defaultPackages = `bash,coreutils,iproute2,iputils,libidn,nettle`20 version = `3.5`21 usage = `hastur the unspeakable - zero-conf systemd container manager.22hastur is a simple wrapper around systemd-nspawn, that will start container23with overlayfs, pre-installed packages and bridged network available out24of the box.25hastur operates over specified root directory, which will hold base FS26for containers and numerous amount of containers derived from base FS.27Primary use of hastur is testing purposes, running testcases for distributed28services and running local network of trusted containers.29Usage:30 hastur -h | --help31 hastur [options] [-b=] [-s=] [-a=] [-p <packages>...] [-n=] -S [--] [<command>...]32 hastur [options] [-s=] -Q [-j] [<name>...]33 hastur [options] [-s=] -D [-f] <name>34 hastur [options] [-s=] --free35Options:36 -h --help Show this help.37 -r <root> Root directory which will hold containers.38 [default: /var/lib/hastur/]39 -q Be quiet. Do not report status messages from nspawn.40 -f Force operation.41 -s <storage> Use specified storageSpec backend for container base42 images and containers themselves. By default, overlayfs43 will be used to provide COW for base system. If overlayfs44 is not possible on current FS and no other storageSpec45 engine is possible, tmpfs will be mounted in specified46 root dir to provide groundwork for overlayfs.47 [default: autodetect]48 <storage> Possible values are:49 * autodetect - use one of available storage engines50 depending on current FS.51 * overlayfs:N - use current FS and overlayfs on top;52 if overlayfs is unsupported on current FS, mount tmpfs of53 size N first.54 * zfs:POOL - use ZFS and use <root> located on POOL.55Create options:56 -S Create and start container.57 <command> Execute specified command in created58 container.59 -b <bridge> Bridge interface name and, optionally, an address,60 separated by colon.61 If bridge does not exists, it will be automatically62 created.63 [default: br0:10.0.0.1/8]64 -t <iface> Use host network and gain access to external network.65 Interface will pair given interface with bridge.66 -p <packages> Packages to install, separated by comma.67 [default: ` + defaultPackages + `]68 -n <name> Use specified container name. If not specified, randomly69 generated name will be used and container will be70 considered ephemeral, e.g. will be destroyed on <command>71 exit.72 -a <address> Use specified IP address/netmask. If not specified,73 automatically generated adress from 10.0.0.0/8 will74 be used.75 -k Keep container after exit if it name was autogenerated.76 -x <dir> Copy entries of specified directory into created77 container root directory.78 -e Keep container after exit if executed <command> failed.79Query options:80 -Q Show information about containers in the <root> dir.81 <name> Query container's options.82 -j Output information using JSON format.83Destroy options:84 -D Destroy specified container.85 --free Completely remove all data in <root> directory with86 containers and base images.87`88)89func fatal(err error) {90 fmt.Fprintln(os.Stderr, err.Error())91 os.Exit(1)92}93func main() {94 rand.Seed(time.Now().UnixNano())95 if os.Args[0] == "/.hastur.exec" && len(os.Args) >= 2 {96 err := execBootstrap()97 if err != nil {98 fatal(err)99 }100 }101 args, err := docopt.Parse(usage, nil, true, version, false)102 if err != nil {103 panic(err)104 }105 var (106 rootDir = args["-r"].(string)107 storageSpec = args["-s"].(string)108 )109 storageEngine, err := createStorageFromSpec(rootDir, storageSpec)110 if err != nil {111 fatal(ser.Errorf(err, "can't initialize storage"))112 }113 switch {114 case args["-S"].(bool):115 err = createAndStart(args, storageEngine)116 case args["-Q"].(bool):117 err = queryContainers(args, storageEngine)118 case args["-D"].(bool):119 err = destroyContainer(args, storageEngine)120 case args["--free"].(bool):121 err = destroyRoot(args, storageEngine)122 }123 if err != nil {124 fatal(err)125 }126}127func execBootstrap() error {128 command := []string{}129 if len(os.Args) == 2 {130 command = []string{"/bin/bash"}131 } else {132 if len(os.Args) == 3 && strings.Contains(os.Args[2], " ") {133 command = []string{"/bin/bash", "-c", os.Args[2]}134 } else {135 command = os.Args[2:]136 }137 }138 ioutil.WriteFile(os.Args[1], []byte{}, 0)139 ioutil.ReadFile(os.Args[1])140 err := os.Remove(os.Args[1])141 if err != nil {142 return ser.Errorf(143 err,144 "can't remove control file '%s'", os.Args[1],145 )146 }147 err = syscall.Exec(command[0], command[0:], os.Environ())148 if err != nil {149 return ser.Errorf(150 err,151 "can't execute command %q", os.Args[2:],152 )153 }154 return nil155}156func destroyContainer(157 args map[string]interface{},158 storageEngine storage,159) error {160 var (161 containerName = args["<name>"].([]string)[0]162 )163 err := storageEngine.DestroyContainer(containerName)164 _ = umountNetorkNamespace(containerName)165 err = cleanupNetworkInterface(containerName)166 if err != nil {167 log.Println(err)168 }169 return err170}171func showBaseDirsInfo(172 args map[string]interface{},173 storageEngine storage,174) error {175 var (176 rootDir = args["-r"].(string)177 )178 baseDirs, err := getBaseDirs(rootDir)179 if err != nil {180 return ser.Errorf(181 err,182 "can't get base dirs from '%s'", rootDir,183 )184 }185 for _, baseDir := range baseDirs {186 packages, err := listExplicitlyInstalled(baseDir)187 if err != nil {188 return ser.Errorf(189 err,190 "can't list explicitly installed packages in '%s'",191 baseDir,192 )193 }194 fmt.Println(baseDir)195 for _, packageName := range packages {196 fmt.Printf("\t%s\n", packageName)197 }198 }199 return nil200}201func createAndStart(202 args map[string]interface{},203 storageEngine storage,204) error {205 var (206 bridgeInfo = args["-b"].(string)207 rootDir = args["-r"].(string)208 packagesList = args["-p"].([]string)209 containerName, _ = args["-n"].(string)210 commandLine = args["<command>"].([]string)211 networkAddress, _ = args["-a"].(string)212 force = args["-f"].(bool)213 keep = args["-k"].(bool)214 keepFailed = args["-e"].(bool)215 copyingDir, _ = args["-x"].(string)216 hostInterface, _ = args["-t"].(string)217 quiet = args["-q"].(bool)218 )219 err := ensureIPv4Forwarding()220 if err != nil {221 return ser.Errorf(222 err,223 "can't enable ipv4 forwarding",224 )225 }226 bridgeDevice, bridgeAddress := parseBridgeInfo(bridgeInfo)227 err = ensureBridge(bridgeDevice)228 if err != nil {229 return ser.Errorf(230 err,231 "can't create bridge interface '%s'", bridgeDevice,232 )233 }234 err = ensureBridgeInterfaceUp(bridgeDevice)235 if err != nil {236 return ser.Errorf(237 err,238 "can't set bridge '%s' up",239 bridgeDevice,240 )241 }242 if bridgeAddress != "" {243 err = setupBridge(bridgeDevice, bridgeAddress)244 if err != nil {245 return ser.Errorf(246 err,247 "can't assign address '%s' on bridge '%s'",248 bridgeAddress,249 bridgeDevice,250 )251 }252 }253 if hostInterface != "" {254 err := addInterfaceToBridge(hostInterface, bridgeDevice)255 if err != nil {256 return ser.Errorf(257 err,258 "can't bind host's ethernet '%s' to '%s'",259 hostInterface,260 bridgeDevice,261 )262 }263 err = copyInterfaceAddressToBridge(hostInterface, bridgeDevice)264 if err != nil {265 return ser.Errorf(266 err,267 "can't copy address from host's '%s' to '%s'",268 hostInterface,269 bridgeDevice,270 )271 }272 err = copyInterfaceRoutesToBridge(hostInterface, bridgeDevice)273 if err != nil {274 return ser.Errorf(275 err,276 "can't copy routes from host's '%s' to '%s'",277 hostInterface,278 bridgeDevice,279 )280 }281 }282 ephemeral := false283 if containerName == "" {284 generatedName := generateContainerName()285 if !keep {286 ephemeral = true287 if !keepFailed && !quiet {288 fmt.Println(289 "Container is ephemeral and will be deleted after exit.",290 )291 }292 }293 containerName = generatedName294 fmt.Printf("Container name: %s\n", containerName)295 }296 allPackages := []string{}297 for _, packagesGroup := range packagesList {298 packages := strings.Split(packagesGroup, ",")299 allPackages = append(allPackages, packages...)300 }301 cacheExists, baseDir, err := createBaseDirForPackages(302 rootDir,303 allPackages,304 storageEngine,305 )306 if err != nil {307 return ser.Errorf(308 err,309 "can't create base dir '%s'", baseDir,310 )311 }312 if !cacheExists || force {313 fmt.Println("Installing packages")314 err = installPackages(getImageDir(rootDir, baseDir), allPackages)315 if err != nil {316 return ser.Errorf(317 err,318 "can't install packages into '%s'", rootDir,319 )320 }321 err = ioutil.WriteFile(322 filepath.Join(getImageDir(rootDir, baseDir), ".hastur"),323 nil, 0644,324 )325 if err != nil {326 return ser.Errorf(327 err, "can't create .hastur file in image directory",328 )329 }330 }331 err = storageEngine.InitContainer(baseDir, containerName)332 if err != nil {333 return ser.Errorf(334 err,335 "can't create directory layout under '%s'", rootDir,336 )337 }338 if networkAddress == "" {339 _, baseIPNet, _ := net.ParseCIDR("10.0.0.0/8")340 networkAddress = generateRandomNetwork(baseIPNet)341 if !quiet {342 fmt.Printf("Container will use IP: %s\n", networkAddress)343 }344 }345 if copyingDir != "" {346 err = copyDir(copyingDir, getImageDir(rootDir, baseDir))347 if err != nil {348 return ser.Errorf(349 err,350 "can't copy %s to container root", copyingDir,351 )352 }353 }354 err = nspawn(355 storageEngine,356 containerName,357 bridgeDevice, networkAddress, bridgeAddress,358 ephemeral, keepFailed, quiet,359 commandLine,360 )361 if err != nil {362 if executil.IsExitError(err) {363 os.Exit(executil.GetExitStatus(err))364 }365 return ser.Errorf(err, "command execution failed")366 }367 return nil368}369func destroyRoot(370 args map[string]interface{},371 storageEngine storage,372) error {373 err := storageEngine.Destroy()374 if err != nil {375 return ser.Errorf(376 err, "can't destroy storage",377 )378 }379 return nil380}381func generateContainerName() string {382 tuples := []string{"ir", "oh", "at", "op", "un", "ed"}383 triples := []string{"gep", "vin", "kut", "lop", "man", "zod"}384 all := append(append([]string{}, tuples...), triples...)385 getTuple := func() string {386 return tuples[rand.Intn(len(tuples))]387 }388 getTriple := func() string {389 return triples[rand.Intn(len(triples))]390 }391 getAny := func() string {392 return all[rand.Intn(len(all))]393 }394 id := []string{395 getTuple(),396 getTriple(),397 "-",398 getTuple(),399 getTriple(),400 getTuple(),401 "-",402 getAny(),403 }404 return strings.Join(id, "")405}406func parseBridgeInfo(bridgeInfo string) (dev, address string) {407 parts := strings.Split(bridgeInfo, ":")408 if len(parts) == 1 {409 return parts[0], ""410 } else {411 return parts[0], parts[1]412 }413}414func createStorageFromSpec(rootDir, storageSpec string) (storage, error) {415 var storageEngine storage416 var err error417 switch {418 case storageSpec == "autodetect":419 storageSpec = "overlayfs"420 fallthrough421 case strings.HasPrefix(storageSpec, "overlayfs"):422 storageEngine, err = NewOverlayFSStorage(rootDir, storageSpec)423 case strings.HasPrefix(storageSpec, "zfs"):424 storageEngine, err = NewZFSStorage(rootDir, storageSpec)425 }426 if err != nil {427 return nil, ser.Errorf(428 err, "can't create storage '%s'", storageSpec,429 )430 }431 err = storageEngine.Init()432 if err != nil {433 return nil, ser.Errorf(434 err, "can't init storage '%s'", storageSpec,435 )436 }437 return storageEngine, nil438}...

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GetTuple

Using AI Code Generation

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1import (2func main() {3 fmt.Println(lib.GetTuple())4}5import (6func GetTuple() (int, int) {7 fmt.Println("I am from lib")8}9import "fmt"10func main() {11 func() {12 fmt.Println("I am anonymous function")13 }()14}15A closure is a function value that references variables from outside its body. The function may access and assign to the referenced variables; in this sense the function is "bound" to the variables. For example:16import "fmt"17func main() {18 func() {19 fmt.Println(a)20 }()21}22import "fmt"23func main() {24 fmt.Println(factorial(5))25}26func factorial(n int) int {27 if n == 0 {28 }29 return n * factorial(n-1)30}31import "fmt"32func main() {33 defer fmt.Println("World")34 fmt.Println("Hello")35}

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GetTuple

Using AI Code Generation

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1import (2func main() {3 tuple := lib.GetTuple()4 fmt.Println(tuple)5}6type Tuple struct {7}8func GetTuple() Tuple {9 return Tuple{A: 1, B: 2}10}11Traceback (most recent call last):12 import RPi.GPIO as GPIO13and then import the RPi.GPIO module, I get the following error:14Traceback (most recent call last):

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GetTuple

Using AI Code Generation

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1import (2func main() {3 fmt.Println("Hello, playground")4 fmt.Println(lib.GetTuple())5}6import "fmt"7func GetTuple() (int, string) {8}9import (10func TestGetTuple(t *testing.T) {11 a, b := GetTuple()12 fmt.Println(a, b)13}14import (15func TestGetTuple(t *testing.T) {16 a, b := GetTuple()17 fmt.Println(a, b)18}19import (20func GetTuple() (int, string) {21}22We can also use the build tags in the import statements. For example, we can use the following

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GetTuple

Using AI Code Generation

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1import (2func main() {3 a.GetTuple()4}5import "fmt"6type A struct {7}8func (a A) GetTuple() {9 fmt.Println(x, y)10}11func (a A) GetTuple() {12 fmt.Println(x, y)13}14import (15func main() {16 a.GetTuple()17}18import "fmt"19type A struct {20}21func (a A) GetTuple() {22 fmt.Println(x, y)23}24func (a A) GetTuple() {25 fmt.Println(x, y)26}27./2.go:7: a.GetTuple undefined (type lib.A has no field or method GetTuple)

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GetTuple

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1import (2func main() {3 tuple := lib.GetTuple()4 fmt.Println(tuple)5}6import (7func GetTuple() (string, string) {8 fmt.Println("Enter the string")9 fmt.Scanf("%s", &input)10 str = strings.Split(input, ",")11 if len(str) != 2 {12 fmt.Println("Invalid string")13 }14}15import (16func main() {17 tuple := lib.GetTuple()18 fmt.Println(tuple)19}20import (21func GetTuple() (string, string) {22 fmt.Println("Enter the string")23 fmt.Scanf("%s", &input)24 str = strings.Split(input, ",")25 if len(str) != 2 {26 fmt.Println("Invalid string")27 }28}29import (30func main() {31 tuple := lib.GetTuple()32 fmt.Println(tuple)33}34import (35func GetTuple() (string, string) {36 fmt.Println("Enter the string")37 fmt.Scanf("%s", &input)38 str = strings.Split(input, ",")39 if len(str) != 2 {40 fmt.Println("Invalid string")41 }42}

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GetTuple

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1import (2func main() {3 fmt.Println("Hello World!")4 lib1.GetTuple()5}6import (7type Lib struct {8}9func (lib *Lib) GetTuple() {10 fmt.Println(lib.name, lib.age)11}

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GetTuple

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1import (2func main() {3 a, b = lib.GetTuple()4 fmt.Println("a:", a, "b:", b)5}6func GetTuple() (int, int) {7}

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