blob: 0508e22881843e79a4f869f777603309923ccc1b [file] [log] [blame]
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows
package svc
import (
// event represents auto-reset, initially non-signaled Windows event.
// It is used to communicate between go and asm parts of this package.
type event struct {
h windows.Handle
func newEvent() (*event, error) {
h, err := windows.CreateEvent(nil, 0, 0, nil)
if err != nil {
return nil, err
return &event{h: h}, nil
func (e *event) Close() error {
return windows.CloseHandle(e.h)
func (e *event) Set() error {
return windows.SetEvent(e.h)
func (e *event) Wait() error {
s, err := windows.WaitForSingleObject(e.h, windows.INFINITE)
switch s {
case windows.WAIT_OBJECT_0:
case windows.WAIT_FAILED:
return err
return errors.New("unexpected result from WaitForSingleObject")
return nil