77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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// Implements support for running the storagenode-updater as a Windows Service.
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//
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// The Windows Service can be created with sc.exe, e.g.
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//
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// sc.exe create storagenode-updater binpath= "C:\Users\MyUser\storagenode-updater.exe run ..."
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// +build windows
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package main
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import (
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"log"
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"os"
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"time"
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"golang.org/x/sys/windows/svc"
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)
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func init() {
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interactive, err := svc.IsAnInteractiveSession()
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if err != nil {
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panic("Failed to determine if session is interactive:" + err.Error())
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}
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if interactive {
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return
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}
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err = svc.Run("storagenode-updater", &service{})
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if err != nil {
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panic("Service failed: " + err.Error())
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}
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// avoid starting main() when service was stopped
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os.Exit(0)
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}
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type service struct{}
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func (m *service) Execute(args []string, r <-chan svc.ChangeRequest, changes chan<- svc.Status) (ssec bool, errno uint32) {
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const cmdsAccepted = svc.AcceptStop | svc.AcceptShutdown
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changes <- svc.Status{State: svc.StartPending}
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go func() {
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_ = rootCmd.Execute()
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}()
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changes <- svc.Status{State: svc.Running, Accepts: cmdsAccepted}
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for {
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select {
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case c := <-r:
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switch c.Cmd {
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case svc.Interrogate:
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log.Println("Interrogate request received.")
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changes <- c.CurrentStatus
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// Testing deadlock from https://code.google.com/p/winsvc/issues/detail?id=4
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time.Sleep(100 * time.Millisecond)
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changes <- c.CurrentStatus
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case svc.Stop, svc.Shutdown:
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log.Println("Stop/Shutdown request received.")
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changes <- svc.Status{State: svc.StopPending}
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cancel()
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// Sleep some time to give chance for goroutines finish cleanup after cancelling the context
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time.Sleep(3 * time.Second)
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// After returning the Windows Service is stopped and the process terminates
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return
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default:
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log.Println("Unexpected control request:", c)
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}
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}
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}
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} |