gogf/gf/v2/os/gproc: some wrong about gf_pid_port_mapping

[star-hou]

What do you want to ask?

i see code use /var/tmp/gf_pid_port_mapping to save file for local tcp port, bug if service not upgrade over one month, the "{pid}"file will be deleted by system(maybe), and then i get error like "could not find port for pid xxx". so what should i do to avoid this thing happen??

[star-hou]

func getCommPidFolderPath() (folderPath string, err error) {
commPidFolderPathOnce.Do(func() {
availablePaths := []string{
"/var/tmp",
"/var/run",
}
if path, _ := gfile.Home(".config"); path != "" {
availablePaths = append(availablePaths, path)
}
availablePaths = append(availablePaths, gfile.Temp())
for _, availablePath := range availablePaths {
checkPath := gfile.Join(availablePath, defaultFolderNameForProcComm)
if !gfile.Exists(checkPath) && gfile.Mkdir(checkPath) != nil {
continue
}
if gfile.IsWritable(checkPath) {
commPidFolderPath = checkPath
break
}
}
if commPidFolderPath == "" {
err = gerror.Newf(
cannot find available folder for storing pid to port mapping files in paths: %+v,
availablePaths,
)
}
})
folderPath = commPidFolderPath
return
}

i saw code like this, i see, if the availablePath what i appoint order by first is more reasonable? In this way, users can use persistent directories to save these process files.