How to use Write method of launcher Package

Best Rod code snippet using launcher.Write

launcher.go

Source:launcher.go Github

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...130 script := filepath.Join(launcher.rootDir, "bin", "internal", "prepare-instance.sh")131 cmd := exec.Command(script, "-c", launcher.instanceDir, "-r", launcher.rootDir, "-i", launcher.haInstanceId)132 cmd.Env = launcher.env133 cmd.Dir = launcher.instanceDir134 cmd.Stdout = io.MultiWriter(os.Stdout, launcher.output)135 cmd.Stderr = io.MultiWriter(os.Stderr, launcher.output)136 if err := cmd.Run(); err != nil {137 return errors.Wrapf(err, "failed to run %s", script)138 }139 launcher.Printf("instance prepared")140 return nil141}142func (launcher *Launcher) initComponents() error {143 for _, name := range launcher.launchComponents {144 launcher.components[name] = NewComponent(name)145 }146 return nil147}148func (launcher *Launcher) startComponents() error {149 for name, comp := range launcher.components {150 if err := launcher.startComponent(comp); err != nil {151 return errors.Wrapf(err, "failed to start component %s", name)152 }153 }154 return nil155}156func (launcher *Launcher) startComponent(comp *Component) error {157 launcher.Printf("starting component %s...", comp.Name)158 script := filepath.Join(launcher.rootDir, "bin", "internal", "start-component.sh")159 cmd := exec.Command(script, "-c", launcher.instanceDir, "-r", launcher.rootDir, "-i", launcher.haInstanceId, "-o", comp.Name)160 cmd.Env = launcher.env161 cmd.Dir = launcher.instanceDir162 cmd.Stdout = io.MultiWriter(os.Stdout, comp.output)163 cmd.Stderr = io.MultiWriter(os.Stderr, comp.output)164 cmd.SysProcAttr = getSysProcAttr()165 if err := cmd.Start(); err != nil {166 return errors.Wrapf(err, "failed to run component %s", comp.Name)167 }168 comp.cmd = cmd169 launcher.Printf("component %s started", comp.Name)170 launcher.wg.Add(1)171 go func() {172 defer launcher.wg.Done()173 if _, err := cmd.Process.Wait(); err != nil {174 launcher.Printf("component %s stopped with error: %v", comp.Name, err)175 } else {176 launcher.Printf("component %s stopped", comp.Name)177 }178 comp.cmd = nil179 }()180 return nil181}182func (launcher *Launcher) stopComponent(comp *Component) error {183 if comp.cmd != nil {184 launcher.Printf("stopping component %s...", comp.Name)185 if err := kill(comp.cmd.Process.Pid); err != nil {186 return errors.Wrapf(err, "failed to kill component %s", comp.Name)187 }188 }189 return nil190}191func (launcher *Launcher) StopComponents() {192 launcher.Printf("stopping components...")193 for name, comp := range launcher.components {194 if err := launcher.stopComponent(comp); err != nil {195 launcher.Printf("failed to stop component %s: %v", name, err)196 }197 }198}199func (launcher *Launcher) Stop() {200 launcher.Shutdown(context.Background())201 launcher.StopComponents()202}203func (launcher *Launcher) handleComponents(w http.ResponseWriter, r *http.Request) {204 var comps []*Component205 for _, comp := range launcher.components {206 comps = append(comps, comp)207 }208 data, _ := json.Marshal(comps)209 w.Header().Set("Content-Type", "application/json")210 w.Write(data)211}212func (launcher *Launcher) handleComponentLog(w http.ResponseWriter, r *http.Request) {213 vars := mux.Vars(r)214 name := vars["comp"]215 var level LogLevel = LogLevelAny216 var err error217 if val := r.FormValue("level"); val != "" {218 if level, err = parseLogLevel(val); err != nil {219 w.WriteHeader(http.StatusUnprocessableEntity)220 writeError(w, "Unknown log level '%s'", val)221 return222 }223 }224 if comp, ok := launcher.components[name]; ok {225 var lines []string226 scanner := bufio.NewScanner(strings.NewReader(comp.output.String()))227 for scanner.Scan() {228 line := stripEscapeSeqs(scanner.Text())229 lineLevel := getLogLevel(line)230 if lineLevel <= level {231 lines = append(lines, line)232 }233 }234 if err := scanner.Err(); err != nil {235 launcher.Printf("error reading componet output, %v", err)236 }237 data, _ := json.Marshal(lines)238 w.Header().Set("Content-Type", "application/json")239 w.Write(data)240 } else {241 w.WriteHeader(http.StatusNotFound)242 writeError(w, "Component '%s' not found", name)243 }244}245func (launcher *Launcher) handleComponentStop(w http.ResponseWriter, r *http.Request) {246 vars := mux.Vars(r)247 name := vars["comp"]248 if comp, ok := launcher.components[name]; ok {249 if err := launcher.stopComponent(comp); err != nil {250 w.WriteHeader(http.StatusInternalServerError)251 writeError(w, "Couldn't stop component '%s': %v", name, err)252 }253 } else {254 w.WriteHeader(http.StatusNotFound)255 writeError(w, "Component '%s' not found", name)256 }257}258func (launcher *Launcher) handleComponentStart(w http.ResponseWriter, r *http.Request) {259 vars := mux.Vars(r)260 name := vars["comp"]261 if comp, ok := launcher.components[name]; ok {262 if err := launcher.startComponent(comp); err != nil {263 w.WriteHeader(http.StatusInternalServerError)264 writeError(w, "Couldn't start component '%s': %v", name, err)265 }266 } else {267 w.WriteHeader(http.StatusNotFound)268 writeError(w, "Component '%s' not found", name)269 }270}271func (launcher *Launcher) handleLog(w http.ResponseWriter, r *http.Request) {272 var lines []string273 scanner := bufio.NewScanner(strings.NewReader(launcher.output.String()))274 for scanner.Scan() {275 line := stripEscapeSeqs(scanner.Text())276 lines = append(lines, line)277 }278 if err := scanner.Err(); err != nil {279 launcher.Printf("error reading componet output, %v", err)280 }281 data, _ := json.Marshal(lines)282 w.Header().Set("Content-Type", "application/json")283 w.Write(data)284}285func writeError(w http.ResponseWriter, format string, a ...interface{}) {286 type errorMessage struct {287 Message string `json:"error"`288 }289 var msg errorMessage290 msg.Message = fmt.Sprintf(format, a...)291 data, _ := json.Marshal(msg)292 w.Header().Set("Content-Type", "application/json")293 w.Write(data)294}...

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LolLauncherGameCallback.go

Source:LolLauncherGameCallback.go Github

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...19func (this *LolLauncherGameCallback) OnConnect(c *gotcp.Conn) bool {20 addr := c.GetRawConn().RemoteAddr()21 c.PutExtraData(addr)22 log.Println("游戏进程已连接:", addr)23 // c.AsyncWritePacket(NewLolLauncherPacket(0, []byte("onconnect")), 0)24 // TODO 启动OnMessageFromMain\HeartBeat函数25 go this.OnMessageFromMain(c)26 go this.OnHeartBeat(c)27 return true28}29func (this *LolLauncherGameCallback) OnHeartBeat(c *gotcp.Conn) {30 heartbeat := time.Tick(HEARTBEAT_TIME_INTERVAL)31 for {32 select {33 case <-heartbeat:34 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_HEARTBEAT, []byte{}), 0)35 return36 }37 }38}39func (this *LolLauncherGameCallback) OnMessageFromMain(c *gotcp.Conn) {40 for {41 packet := <-this.PacketReceiveChanFromMain42 data := packet.GetData()43 commandType := packet.GetCommand()44 switch commandType {45 case MAESTROMESSAGETYPE_CHATMESSAGE_TO_GAME:46 //0x0b 来自游戏大厅的消息，需要转发至游戏进程(在ClientCallback中实现)47 c.AsyncWritePacket(packet, 0)48 default:49 //MAESTROMESSAGETYPE_INVALID50 log.Println("Game－>OnMessageFromMain－>IGNOREMESSAGE:", commandType, " -- ", packet.pHead, " -- ", data)51 }52 }53}54func (this *LolLauncherGameCallback) OnMessage(c *gotcp.Conn, p gotcp.Packet) bool {55 packet := p.(*LolLauncherPacket)56 data := packet.GetData()57 commandType := packet.GetCommand()58 // fmt.Println("Game－>OnMessage:",commandType," -- ",packet.pHead," -- ",data)59 // this.PacketSendChanToMain <- packet //test60 switch commandType {61 case MAESTROMESSAGETYPE_GAMECLIENT_STOPPED:62 //0x01 游戏停止（游戏结束...）63 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_REPLY, []byte{}), 0)64 case MAESTROMESSAGETYPE_CLOSE:65 // 0x03 游戏进程关闭66 // fmt.Println("MAESTROMESSAGETYPE_CLOSE:League Of Legends is closed.")67 this.PacketSendChanToMain <- packet68 case MAESTROMESSAGETYPE_HEARTBEAT:69 // 0x04 回复收到心跳70 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_REPLY, []byte{}), 0)71 case MAESTROMESSAGETYPE_REPLY:72 //0x05 确认收到消息包的回复(可以不做处理)73 case MAESTROMESSAGETYPE_GAMECLIENT_ABANDONED:74 // 0x07 游戏异常退出75 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_REPLY, []byte{}), 0)76 this.PacketSendChanToMain <- packet77 case MAESTROMESSAGETYPE_GAMECLIENT_LAUNCHED:78 // 08 游戏客户端已启动(league of legends进程会主动发送给launcher)79 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_REPLY, []byte{}), 0)80 //消息转发到launcher,再转给client最外层程序， 状态标识81 this.PacketSendChanToMain <- packet82 case MAESTROMESSAGETYPE_GAMECLIENT_CONNECTED_TO_SERVER:83 // 0x0a League of legends已经连接到腾讯服务器84 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_REPLY, []byte{}), 0)85 this.PacketSendChanToMain <- packet86 // @TODO 传值87 case MAESTROMESSAGETYPE_CHATMESSAGE_TO_GAME:88 //0x0b 来自游戏大厅的消息，需要转发至游戏进程(在ClientCallback中实现)89 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_REPLY, []byte{}), 0)90 this.PacketSendChanToMain <- packet91 case MAESTROMESSAGETYPE_CHATMESSAGE_FROM_GAME:92 //0x0c 来自游戏进程(League of legends)的聊天消息,##根据样本协议包分析，当收到此消息后，立刻回复一个收到消息包 MAESTROMESSAGETYPE_REPLY ##93 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_REPLY, []byte{}), 0)94 //@TODO 传到最外层程序，然后，外层程序转发消息至LolClient95 this.PacketSendChanToMain <- packet96 default:97 //MAESTROMESSAGETYPE_INVALID98 log.Println("Game－>OnMessage－>MAESTROMESSAGETYPE_INVALID:", commandType, " -- ", packet.pHead, " -- ", data)99 }100 return true101}102func (this *LolLauncherGameCallback) OnClose(c *gotcp.Conn) {103 log.Println("游戏进程已退出:", c.GetExtraData())104}...

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LolLauncherClientCallback.go

Source:LolLauncherClientCallback.go Github

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...13func (this *LolLauncherClientCallback) OnConnect(c *gotcp.Conn) bool {14 addr := c.GetRawConn().RemoteAddr()15 c.PutExtraData(addr)16 log.Println("游戏大厅已连接:", addr)17 // c.AsyncWritePacket(NewLolLauncherPacket(0, []byte("onconnect")), 0)18 // TODO 启动OnMessageFromMain\HeartBeat函数19 go this.OnMessageFromMain(c)20 go this.OnHeartBeat(c)21 return true22}23func (this *LolLauncherClientCallback) OnHeartBeat(c *gotcp.Conn) {24 heartbeat := time.Tick(HEARTBEAT_TIME_INTERVAL)25 for {26 select {27 case <-heartbeat:28 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_HEARTBEAT, []byte{}), 0)29 // return30 }31 }32}33func (this *LolLauncherClientCallback) OnMessageFromMain(c *gotcp.Conn) {34 for {35 packet := <-this.PacketReceiveChanFromMain36 data := packet.GetData()37 commandType := packet.GetCommand()38 // fmt.Println("Client－>OnMessageFromMain:",commandType," -- ",packet.pHead," -- ",data)39 switch commandType {40 case MAESTROMESSAGETYPE_GAMECLIENT_ABANDONED:41 c.AsyncWritePacket(packet, 0)42 case MAESTROMESSAGETYPE_GAMECLIENT_LAUNCHED:43 //0X0844 c.AsyncWritePacket(packet, 0)45 case MAESTROMESSAGETYPE_GAMECLIENT_CONNECTED_TO_SERVER:46 //0XOA 连接到服务器47 c.AsyncWritePacket(packet, 0)48 case MAESTROMESSAGETYPE_CHATMESSAGE_TO_GAME:49 //0x0b 来自游戏大厅的消息，需要转发至游戏进程(在ClientCallback中实现)50 c.AsyncWritePacket(packet, 0)51 case MAESTROMESSAGETYPE_CHATMESSAGE_FROM_GAME:52 c.AsyncWritePacket(packet, 0)53 default:54 //MAESTROMESSAGETYPE_INVALID55 log.Println("Client－>OnMessageFromMain－>IGNOREMESSAGE:", commandType, " -- ", packet.pHead, " -- ", data)56 }57 }58}59func (this *LolLauncherClientCallback) OnMessage(c *gotcp.Conn, p gotcp.Packet) bool {60 packet := p.(*LolLauncherPacket)61 data := packet.GetData()62 commandType := packet.GetCommand()63 switch commandType {64 case MAESTROMESSAGETYPE_GAMECLIENT_CREATE:65 // 0x00 存储data数据，此数据为League of legends 启动参数66 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_REPLY, []byte{}), 0)67 log.Println("LOGIN KEY:", string(data))68 ////启动游戏进程69 this.PacketSendChanToMain <- packet70 case MAESTROMESSAGETYPE_CLOSE:71 //0x03 游戏进程退出 @TODO72 this.PacketSendChanToMain <- packet73 case MAESTROMESSAGETYPE_HEARTBEAT:74 //0x04 回复收到心跳75 c.AsyncWritePacket(NewLolLauncherPacket(MAESTROMESSAGETYPE_REPLY, []byte{}), 0)76 case MAESTROMESSAGETYPE_REPLY:77 //0x05 不处理（一般不会有这种消息)78 case MAESTROMESSAGETYPE_CHATMESSAGE_TO_GAME:79 //0x0b 来自游戏大厅的消息，需要转发至游戏进程 @TODO80 this.PacketSendChanToMain <- packet81 default:82 //MAESTROMESSAGETYPE_INVALID83 log.Println("Client－>OnMessage－>MAESTROMESSAGETYPE_INVALID:", commandType, " -- ", packet.pHead, " -- ", data)84 }85 return true86}87func (this *LolLauncherClientCallback) OnClose(c *gotcp.Conn) {88 log.Println("游戏大厅已退出:", c.GetExtraData())89}...

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Write

Using AI Code Generation

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1import (2func main() {3 binary, lookErr := exec.LookPath("ls")4 if lookErr != nil {5 panic(lookErr)6 }7 args := []string{"ls", "-a", "-l", "-h"}8 env := os.Environ()9 execErr := syscall.Exec(binary, args, env)10 if execErr != nil {11 panic(execErr)12 }13}

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Write

Using AI Code Generation

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1import (2func main() {3 cmd := exec.Command("java", "launcher")4 err := cmd.Start()5 if err != nil {6 fmt.Println(err)7 }8 fmt.Println("Waiting for command to finish...")9 err = cmd.Wait()10 fmt.Println("Command finished with error: ", err)11}

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Write

Using AI Code Generation

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1import (2func main() {3 fmt.Println("Hello World")4 os.Stdout.Write([]byte("Hello World5}6import (7func main() {8 fmt.Println("Hello World")9 os.Stdout.WriteString("Hello World10}11import (12func main() {13 fmt.Println("Hello World")14 os.Stdout.WriteString("Hello World15}16import (17func main() {18 fmt.Println("Hello World")19 os.Stdout.WriteString("Hello World20}21import (22func main() {23 fmt.Println("Hello World")24 os.Stdout.WriteString("Hello World25}

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Write

Using AI Code Generation

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1import (2func main() {3 file, err := os.Create("test.txt")4 if err != nil {5 fmt.Println(err)6 }7 io.WriteString(file, "This is a test file")8 file.Close()9}10WriteString() method11func WriteString(file *File, s string) (n int, err error)12import (13func main() {14 file, err := os.Create("test.txt")15 if err != nil {16 fmt.Println(err)17 }18 n, err := io.WriteString(file, "This is a test file")19 if err != nil {20 fmt.Println(err)21 }22 fmt.Printf("Wrote %d bytes to file", n)23 file.Close()24}25WriteString() method in action26import (27func main() {28 file, err := os.Create("test.txt")

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Write

Using AI Code Generation

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1import (2func main() {3 launcherPath := filepath.Join(os.Getenv("GOPATH"), "src", "github.com", "mohit", "launcher", "launcher.go")4 filePath := filepath.Join(os.Getenv("GOPATH"), "src", "github.com", "mohit", "launcher", "fileToWrite.txt")5 cmd := []string{"go", "run", launcherPath, filePath}6 procAttr := &syscall.ProcAttr{7 Files: []uintptr{os.Stdin.Fd(), os.Stdout.Fd(), os.Stderr.Fd()},8 }9 pid, err := syscall.ForkExec(cmd[0], cmd, procAttr)10 if err != nil {11 fmt.Printf("Error in ForkExec: %v12 os.Exit(1)13 }14 _, err = syscall.Wait4(pid, nil, 0, nil)15 if err != nil {16 fmt.Printf("Error in Wait4: %v17 os.Exit(1)18 }19}20import (21func main() {22 file, err := os.Create(filePath)23 if err != nil {24 fmt.Printf("Error in creating file: %v25 os.Exit(1)26 }27 _, err = file.Write([]byte("Hello World!"))28 if err != nil {29 fmt.Printf("Error in writing to file: %v30 os.Exit(1)31 }32}

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Write

Using AI Code Generation

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1import "fmt"2func main(){3 launcher := Launcher{}4 launcher.Write("Hello, World!")5}6import "fmt"7type Launcher struct{}8func (l *Launcher) Write(s string){9 fmt.Println(s)10}11import "testing"12func TestLauncher(t *testing.T){13 launcher := Launcher{}14 launcher.Write("Hello, World!")15}16import "testing"17func BenchmarkLauncher(b *testing.B){18 launcher := Launcher{}19 for i := 0; i < b.N; i++ {20 launcher.Write("Hello, World!")21 }22}23import "fmt"24func ExampleLauncher(){25 launcher := Launcher{}26 launcher.Write("Hello, World!")27}28import "testing"29func BenchmarkLauncher(b *testing.B){30 launcher := Launcher{}31 for i := 0; i < b.N; i++ {32 launcher.Write("Hello, World!")33 }34}35import "fmt"36func ExampleLauncher(){37 launcher := Launcher{}38 launcher.Write("Hello, World!")39}40import "testing"41func BenchmarkLauncher(b *testing.B){42 launcher := Launcher{}43 for i := 0; i < b.N; i++ {44 launcher.Write("Hello, World!")45 }46}47import "fmt"48func ExampleLauncher(){49 launcher := Launcher{}50 launcher.Write("Hello, World!")51}52import "testing"53func BenchmarkLauncher(b *testing.B){54 launcher := Launcher{}55 for i := 0; i < b.N; i++ {

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Write

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1import (2func main() {3 launcher.Write("Hello World")4}5import (6func main() {7 fmt.Println(launcher.Read())8}9import (10func main() {11 launcher.Write("Hello World")12 fmt.Println(launcher.Read())13}14import (15func main() {16 launcher.Write("Hello World")17 fmt.Println(launcher.Read())18}19import (20func main() {21 launcher.Write("Hello World")22 fmt.Println(launcher.Read())23}24import (25func main() {26 launcher.Write("Hello World")27 fmt.Println(launcher.Read())28}29import (30func main() {31 launcher.Write("Hello World")32 fmt.Println(launcher.Read())33}34import (35func main() {36 launcher.Write("Hello World")37 fmt.Println(launcher.Read())38}39import (40func main() {41 launcher.Write("Hello World")42 fmt.Println(launcher.Read())43}

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Write

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1import (2func main() {3 launcher := exec.Command("notepad.exe")4 launcher.Stdin.Write([]byte("Hello, world!"))5 launcher.Start()6 launcher.Wait()7}8Read() method9Read() method is used to read data from the process. It is used in the following way:10launcher.Stdout.Read([]byte{data})11launcher.Stdout.Read([]byte{data})12ReadAll() method13ReadAll() method is used to read all data from the process. It is used in the following way:14launcher.Stdout.readAll()15launcher.Stdout.readAll()16import (17func main() {18 launcher := exec.Command("notepad.exe")19 launcher.Stdin.Write([]byte("Hello, world!"))20 launcher.Start()21 launcher.Wait()22 data := make([]byte, 100)23 launcher.Stdout.Read(data)24 fmt.Println(string(data))

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Write

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1import "fmt"2func main() {3 launcher.Write("Hello World")4}5import "fmt"6type Launcher struct {7}8func (l Launcher) Write(str string) {9 fmt.Println(str)10}11import "fmt"12func main() {13 launcher.Write("Hello World")14}15import "fmt"16type Launcher struct {17}18func (l Launcher) Write(str string) {19 fmt.Println(str)20}21import "fmt"22func main() {23 launcher.Write("Hello World")24}25import "fmt"26type Launcher struct {27}28func (l Launcher) Write(str string) {29 fmt.Println(str)30}31import "fmt"32func main() {33 launcher.Write("Hello World")34}35import "fmt"36type Launcher struct {37}38func (l Launcher) Write(str string) {39 fmt.Println(str)40}

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