github.com/gogf/gkafka@v1.0.1-0.20190702070843-033a14468069/third/golang.org/x/sys/windows/svc/mgr/service.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  // +build windows
     6  
     7  package mgr
     8  
     9  import (
    10  	"syscall"
    11  
    12  	"github.com/gogf/gkafka/third/golang.org/x/sys/windows"
    13  	"github.com/gogf/gkafka/third/golang.org/x/sys/windows/svc"
    14  )
    15  
    16  // TODO(brainman): Use EnumDependentServices to enumerate dependent services.
    17  
    18  // Service is used to access Windows service.
    19  type Service struct {
    20  	Name   string
    21  	Handle windows.Handle
    22  }
    23  
    24  // Delete marks service s for deletion from the service control manager database.
    25  func (s *Service) Delete() error {
    26  	return windows.DeleteService(s.Handle)
    27  }
    28  
    29  // Close relinquish access to the service s.
    30  func (s *Service) Close() error {
    31  	return windows.CloseServiceHandle(s.Handle)
    32  }
    33  
    34  // Start starts service s.
    35  // args will be passed to svc.Handler.Execute.
    36  func (s *Service) Start(args ...string) error {
    37  	var p **uint16
    38  	if len(args) > 0 {
    39  		vs := make([]*uint16, len(args))
    40  		for i := range vs {
    41  			vs[i] = syscall.StringToUTF16Ptr(args[i])
    42  		}
    43  		p = &vs[0]
    44  	}
    45  	return windows.StartService(s.Handle, uint32(len(args)), p)
    46  }
    47  
    48  // Control sends state change request c to the servce s.
    49  func (s *Service) Control(c svc.Cmd) (svc.Status, error) {
    50  	var t windows.SERVICE_STATUS
    51  	err := windows.ControlService(s.Handle, uint32(c), &t)
    52  	if err != nil {
    53  		return svc.Status{}, err
    54  	}
    55  	return svc.Status{
    56  		State:   svc.State(t.CurrentState),
    57  		Accepts: svc.Accepted(t.ControlsAccepted),
    58  	}, nil
    59  }
    60  
    61  // Query returns current status of service s.
    62  func (s *Service) Query() (svc.Status, error) {
    63  	var t windows.SERVICE_STATUS
    64  	err := windows.QueryServiceStatus(s.Handle, &t)
    65  	if err != nil {
    66  		return svc.Status{}, err
    67  	}
    68  	return svc.Status{
    69  		State:   svc.State(t.CurrentState),
    70  		Accepts: svc.Accepted(t.ControlsAccepted),
    71  	}, nil
    72  }