service/example: gofmt -s
This commit is contained in:
Daniel Theophanes
+105
-105
@@ -1,105 +1,105 @@
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// Copyright 2015 Daniel Theophanes.
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// Copyright 2015 Daniel Theophanes.
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// Use of this source code is governed by a zlib-style
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// Use of this source code is governed by a zlib-style
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// license that can be found in the LICENSE file.package service
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// license that can be found in the LICENSE file.package service
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// Simple service that only works by printing a log message every few seconds.
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// Simple service that only works by printing a log message every few seconds.
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package main
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package main
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import (
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import (
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"flag"
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"flag"
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"log"
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"log"
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"time"
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"time"
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"github.com/kardianos/service"
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"github.com/kardianos/service"
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)
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)
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var logger service.Logger
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var logger service.Logger
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// Program structures.
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// Program structures.
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// Define Start and Stop methods.
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// Define Start and Stop methods.
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type program struct {
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type program struct {
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exit chan struct{}
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exit chan struct{}
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}
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}
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func (p *program) Start(s service.Service) error {
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func (p *program) Start(s service.Service) error {
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if service.Interactive() {
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if service.Interactive() {
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logger.Info("Running in terminal.")
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logger.Info("Running in terminal.")
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} else {
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} else {
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logger.Info("Running under service manager.")
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logger.Info("Running under service manager.")
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}
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}
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p.exit = make(chan struct{})
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p.exit = make(chan struct{})
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// Start should not block. Do the actual work async.
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// Start should not block. Do the actual work async.
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go p.run()
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go p.run()
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return nil
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return nil
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}
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}
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func (p *program) run() error {
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func (p *program) run() error {
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logger.Infof("I'm running %v.", service.Platform())
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logger.Infof("I'm running %v.", service.Platform())
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ticker := time.NewTicker(2 * time.Second)
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ticker := time.NewTicker(2 * time.Second)
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for {
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for {
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select {
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select {
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case tm := <-ticker.C:
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case tm := <-ticker.C:
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logger.Infof("Still running at %v...", tm)
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logger.Infof("Still running at %v...", tm)
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case <-p.exit:
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case <-p.exit:
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ticker.Stop()
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ticker.Stop()
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return nil
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return nil
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}
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}
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}
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}
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return nil
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return nil
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}
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}
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func (p *program) Stop(s service.Service) error {
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func (p *program) Stop(s service.Service) error {
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// Any work in Stop should be quick, usually a few seconds at most.
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// Any work in Stop should be quick, usually a few seconds at most.
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logger.Info("I'm Stopping!")
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logger.Info("I'm Stopping!")
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close(p.exit)
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close(p.exit)
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return nil
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return nil
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}
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}
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// Service setup.
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// Service setup.
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// Define service config.
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// Define service config.
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// Create the service.
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// Create the service.
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// Setup the logger.
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// Setup the logger.
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// Handle service controls (optional).
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// Handle service controls (optional).
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// Run the service.
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// Run the service.
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func main() {
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func main() {
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svcFlag := flag.String("service", "", "Control the system service.")
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svcFlag := flag.String("service", "", "Control the system service.")
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flag.Parse()
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flag.Parse()
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svcConfig := &service.Config{
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svcConfig := &service.Config{
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Name: "GoServiceExampleLogging",
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Name: "GoServiceExampleLogging",
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DisplayName: "Go Service Example for Logging",
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DisplayName: "Go Service Example for Logging",
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Description: "This is an example Go service that outputs log messages.",
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Description: "This is an example Go service that outputs log messages.",
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}
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}
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prg := &program{}
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prg := &program{}
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s, err := service.New(prg, svcConfig)
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s, err := service.New(prg, svcConfig)
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if err != nil {
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if err != nil {
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log.Fatal(err)
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log.Fatal(err)
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}
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}
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errs := make(chan error, 5)
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errs := make(chan error, 5)
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logger, err = s.Logger(errs)
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logger, err = s.Logger(errs)
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if err != nil {
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if err != nil {
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log.Fatal(err)
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log.Fatal(err)
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}
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}
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go func() {
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go func() {
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for {
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for {
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err := <-errs
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err := <-errs
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if err != nil {
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if err != nil {
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log.Print(err)
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log.Print(err)
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}
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}
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}
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}
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}()
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}()
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if len(*svcFlag) != 0 {
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if len(*svcFlag) != 0 {
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err := service.Control(s, *svcFlag)
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err := service.Control(s, *svcFlag)
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if err != nil {
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if err != nil {
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log.Printf("Valid actions: %q\n", service.ControlAction)
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log.Printf("Valid actions: %q\n", service.ControlAction)
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log.Fatal(err)
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log.Fatal(err)
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}
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}
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return
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return
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}
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}
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err = s.Run()
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err = s.Run()
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if err != nil {
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if err != nil {
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logger.Error(err)
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logger.Error(err)
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}
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}
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}
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}
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+51
-51
@@ -1,51 +1,51 @@
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// Copyright 2015 Daniel Theophanes.
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// Copyright 2015 Daniel Theophanes.
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// Use of this source code is governed by a zlib-style
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// Use of this source code is governed by a zlib-style
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// license that can be found in the LICENSE file.package service
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// license that can be found in the LICENSE file.package service
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// simple does nothing except block while running the service.
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// simple does nothing except block while running the service.
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package main
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package main
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import (
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import (
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"log"
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"log"
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"github.com/kardianos/service"
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"github.com/kardianos/service"
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)
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)
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var logger service.Logger
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var logger service.Logger
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type program struct{}
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type program struct{}
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func (p *program) Start(s service.Service) error {
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func (p *program) Start(s service.Service) error {
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// Start should not block. Do the actual work async.
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// Start should not block. Do the actual work async.
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go p.run()
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go p.run()
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return nil
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return nil
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}
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}
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func (p *program) run() {
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func (p *program) run() {
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// Do work here
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// Do work here
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}
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}
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func (p *program) Stop(s service.Service) error {
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func (p *program) Stop(s service.Service) error {
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// Stop should not block. Return with a few seconds.
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// Stop should not block. Return with a few seconds.
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return nil
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return nil
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}
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}
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func main() {
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func main() {
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svcConfig := &service.Config{
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svcConfig := &service.Config{
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Name: "GoServiceExampleSimple",
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Name: "GoServiceExampleSimple",
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DisplayName: "Go Service Example",
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DisplayName: "Go Service Example",
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Description: "This is an example Go service.",
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Description: "This is an example Go service.",
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}
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}
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prg := &program{}
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prg := &program{}
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s, err := service.New(prg, svcConfig)
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s, err := service.New(prg, svcConfig)
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if err != nil {
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if err != nil {
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log.Fatal(err)
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log.Fatal(err)
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}
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}
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logger, err = s.Logger(nil)
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logger, err = s.Logger(nil)
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if err != nil {
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if err != nil {
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log.Fatal(err)
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log.Fatal(err)
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}
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}
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err = s.Run()
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err = s.Run()
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if err != nil {
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if err != nil {
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logger.Error(err)
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logger.Error(err)
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}
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}
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}
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}
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