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go-daemon

(★ 2,308)

A library for writing system daemons in golang.

파일 탐색기

최종 버전 다운로드 (.zip)

- idea.png
.travis.yml
command.go
compilation_test.go
daemon.go
daemon_stub.go
daemon_test.go
daemon_unix.go
go.mod
go.sum
LICENSE
lock_file.go
lock_file_solaris.go
lock_file_stub.go
lock_file_test.go
lock_file_unix.go
os_executable.go
README.md
signal.go
syscall_dup.go
syscall_dup3.go
syscall_dup_pre17.go

# 설치 가이드

1. 코드 내려받기

git clone https://github.com/sevlyar/go-daemon

깃허브에서 프로젝트 코드 전체를 내 컴퓨터로 내려받습니다.

cd go-daemon

방금 내려받은 프로젝트 폴더 안으로 이동합니다.

2. Go

보통 추천

사전 준비물

Git GitHub에서 프로젝트 코드를 내려받으려면 필요합니다.
Go Go 언어 컴파일러 및 도구 모음입니다.

go build ./...

Go 프로그램을 컴파일해 실행 파일을 만듭니다.

go run .

따로 빌드하지 않고 바로 Go 프로그램을 실행합니다.

✅ 빌드가 에러 없이 끝나면 성공입니다. go run . 을 썼다면 터미널 출력을 확인하세요.

// repository documentation

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# go-daemon [![Build Status](https://travis-ci.org/sevlyar/go-daemon.svg?branch=master)](https://travis-ci.org/sevlyar/go-daemon) [![GoDoc](https://godoc.org/github.com/sevlyar/go-daemon?status.svg)](https://godoc.org/github.com/sevlyar/go-daemon)

Library for writing system daemons in Go.

Now supported only UNIX-based OS (Windows is not supported). But the library was tested only on Linux
and OSX, so that if you have an ability to test the library on other platforms, give me feedback, please (#26).

*Please, feel free to send me bug reports and fixes. Many thanks to all contributors.*

## Features

* Goroutine-safe daemonization;
* Out of box work with pid-files;
* Easy handling of system signals;
* The control of a daemon.

## Installation

go get github.com/sevlyar/go-daemon

You can use [gopkg.in](http://labix.org/gopkg.in):

go get gopkg.in/sevlyar/go-daemon.v0

If you want to use the library in production project, please use vendoring,
because i can not ensure backward compatibility before release v1.0.

## Examples

* [Simple](examples/cmd/gd-simple/)
* [Log rotation](examples/cmd/gd-log-rotation/)
* [Signal handling](examples/cmd/gd-signal-handling/)

## Documentation

[godoc.org/github.com/sevlyar/go-daemon](https://godoc.org/github.com/sevlyar/go-daemon)

## How it works

We can not use `fork` syscall in Golang's runtime, because child process doesn't inherit
threads and goroutines in that case. The library uses a simple trick: it runs its own copy with
a mark - a predefined environment variable. Availability of the variable for the process means
an execution in the child's copy. So that if the mark is not setted - the library executes
parent's operations and runs its own copy with mark, and if the mark is setted - the library
executes child's operations:

```go
import "log"

func main() {
	Pre()

context := new(Context)
	child, _ := context.Reborn()

if child != nil {
		PostParent()
	} else {
		defer func() {
			if err := context.Release(); err != nil {
				log.Printf("Unable to release pid-file: %s", err.Error())
			}
		}()

PostChild()
	}
}
```

![](https://raw.githubusercontent.com/sevlyar/go-daemon/master/img/idea.png)