golang.org/x/sys@v0.9.0/windows/svc/example/manage.go (about)

     1  // Copyright 2012 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build windows
     6  // +build windows
     7  
     8  package main
     9  
    10  import (
    11  	"fmt"
    12  	"time"
    13  
    14  	"golang.org/x/sys/windows/svc"
    15  	"golang.org/x/sys/windows/svc/mgr"
    16  )
    17  
    18  func startService(name string) error {
    19  	m, err := mgr.Connect()
    20  	if err != nil {
    21  		return err
    22  	}
    23  	defer m.Disconnect()
    24  	s, err := m.OpenService(name)
    25  	if err != nil {
    26  		return fmt.Errorf("could not access service: %v", err)
    27  	}
    28  	defer s.Close()
    29  	err = s.Start("is", "manual-started")
    30  	if err != nil {
    31  		return fmt.Errorf("could not start service: %v", err)
    32  	}
    33  	return nil
    34  }
    35  
    36  func controlService(name string, c svc.Cmd, to svc.State) error {
    37  	m, err := mgr.Connect()
    38  	if err != nil {
    39  		return err
    40  	}
    41  	defer m.Disconnect()
    42  	s, err := m.OpenService(name)
    43  	if err != nil {
    44  		return fmt.Errorf("could not access service: %v", err)
    45  	}
    46  	defer s.Close()
    47  	status, err := s.Control(c)
    48  	if err != nil {
    49  		return fmt.Errorf("could not send control=%d: %v", c, err)
    50  	}
    51  	timeout := time.Now().Add(10 * time.Second)
    52  	for status.State != to {
    53  		if timeout.Before(time.Now()) {
    54  			return fmt.Errorf("timeout waiting for service to go to state=%d", to)
    55  		}
    56  		time.Sleep(300 * time.Millisecond)
    57  		status, err = s.Query()
    58  		if err != nil {
    59  			return fmt.Errorf("could not retrieve service status: %v", err)
    60  		}
    61  	}
    62  	return nil
    63  }