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Squashed 'modules/minwinsvc/' content from commit cad6b2b
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20
LICENSE
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20
LICENSE
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Copyright (c) 2015 Daniel Theophanes
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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18
README.md
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18
README.md
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### Minimal windows service stub
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Programs designed to run from most *nix style operating systems
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can import this package to enable running programs as services without modifying
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them.
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```
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import _ "github.com/kardianos/minwinsvc"
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```
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If you need more control over the exit behavior, set
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```
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minwinsvc.SetOnExit(func() {
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// Do something.
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// Within 10 seconds call:
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os.Exit(0)
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})
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```
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18
minwinsvc.go
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minwinsvc.go
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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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// license that can be found in the LICENSE file.package service
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// Minimal non-invasive windows only service stub.
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//
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// Import to allow running as a windows service.
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// import _ "github.com/kardianos/minwinsvc"
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// This will detect if running as a windows service
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// and install required callbacks for windows.
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package minwinsvc
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// SetOnExit sets the function to be called when the windows service
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// requests an exit. If this is not called, or if it is called where
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// f == nil, then it defaults to calling "os.Exit(0)".
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func SetOnExit(f func()) {
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setOnExit(f)
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}
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11
svc_other.go
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svc_other.go
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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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// license that can be found in the LICENSE file.package service
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//+build !windows
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package minwinsvc
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func setOnExit(f func()) {
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// Nothing.
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}
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70
svc_windows.go
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svc_windows.go
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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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// license that can be found in the LICENSE file.package service
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//+build windows
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package minwinsvc
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import (
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"os"
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"sync"
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"golang.org/x/sys/windows/svc"
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)
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var (
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onExit func()
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guard sync.Mutex
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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(err)
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}
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if interactive {
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return
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}
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go func() {
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_ = svc.Run("", runner{})
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guard.Lock()
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f := onExit
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guard.Unlock()
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// Don't hold this lock in user code.
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if f != nil {
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f()
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}
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// Make sure we exit.
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os.Exit(0)
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}()
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}
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func setOnExit(f func()) {
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guard.Lock()
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onExit = f
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guard.Unlock()
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}
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type runner struct{}
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func (runner) Execute(args []string, r <-chan svc.ChangeRequest, changes chan<- svc.Status) (bool, 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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changes <- svc.Status{State: svc.Running, Accepts: cmdsAccepted}
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for {
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c := <-r
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switch c.Cmd {
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case svc.Interrogate:
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changes <- c.CurrentStatus
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case svc.Stop, svc.Shutdown:
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changes <- svc.Status{State: svc.StopPending}
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return false, 0
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}
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}
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return false, 0
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}
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