gocommon/pkg/internal/util/os.go

package util

import (
	"os"
	"path/filepath"
)

func WritePid() {
	pid := os.Getpid()
	file, err := os.OpenFile(filepath.Join(GetRootPath(), "app.pid"), os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
	if err != nil {
		Errorf("[WritePid] create app.pid find err, err=%v", err)
		return
	}
	_, err = file.Write([]byte(Int642String(int64(pid))))
	if err != nil {
		Errorf("[WritePid] write pid err, err=%v", err)
		return
	}
}