英文:
How to fork a process
问题
我需要帮助理解如何在Go中使进程脱离终端。
package main
import (
"fmt"
"os"
)
func start() {
var procAttr os.ProcAttr
procAttr.Files = []*os.File{nil, nil, nil}
_, err := os.StartProcess("/Path/prog", nil, &procAttr)
if err != nil {
fmt.Printf("%v", err)
}
}
func main () {
start()
}
如果在命令行上启动此代码，程序会返回控制权，但仍与cmd连接。关闭cmd会关闭程序。
如何使其与cmd解耦？添加以下代码：
procAttr.Sys.HideWindow = true
会导致以下错误："panic" to wrong memory pointer
英文:
I need help understanding how to demonize a process in Go.
package main
import (
"fmt"
"os"
)
func start() {
var procAttr os.ProcAttr
procAttr.Files = []*os.File{nil, nil, nil}
_, err := os.StartProcess("/Path/prog", nil, &procAttr)
if err != nil {
fmt.Printf("%v", err)
}
}
func main () {
start()
}
If you start this code on the command line the program returns control, but is still connected with cmd. Closing the cmd closes the program.
How can I decouple it from the cmd? Adding:
procAttr.Sys.HideWindow = true
Results in this error: "panic" to wrong memory pointer
答案1
得分: 10
我在'golang-nuts'中询问，并发现Go有一个链接选项：
go tool 8l -o output.exe -Hwindowsgui input.8
英文:
I asked in 'golang-nuts', and found out that Go has a link option:
go tool 8l -o output.exe -Hwindowsgui input.8
答案2
得分: 2
这里有一个用Go语言编写的虚拟守护进程，使用起来很简单：https://github.com/icattlecoder/godaemon
一个示例：
package main
import (
_ "github.com/icattlecoder/godaemon"
"log"
"net/http"
)
func main() {
mux := http.NewServeMux()
mux.HandleFunc("/index", func(rw http.ResponseWriter, req *http.Request) {
rw.Write([]byte("hello, golang!\n"))
})
log.Fatalln(http.ListenAndServe(":7070", mux))
}
英文:
Here is a fake daemon in go; it's simple to use: https://github.com/icattlecoder/godaemon
An example:
package main
import (
_ "github.com/icattlecoder/godaemon"
"log"
"net/http"
)
func main() {
mux := http.NewServeMux()
mux.HandleFunc("/index", func(rw http.ResponseWriter, req *http.Request) {
rw.Write([]byte("hello, golang!\n"))
})
log.Fatalln(http.ListenAndServe(":7070", mux))
}
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