func (getListenPortInfoLinux *GetListenPortInfoLinux) GetInfo() ([]int64, error) {
osErr := getLinuxOSError()
if nil != osErr {
return []int64{}, osErr
}
bs, err := utils.CmdOutputBytes("ss", "-n", "-l")
if nil != err {
return []int64{}, err
}
reader := bufio.NewReader(bytes.NewBuffer(bs))
// ignore the first line
var line []byte
line, _, err = reader.ReadLine()
if err == io.EOF || nil != err {
return []int64{}, err
}
ret := []int64{}
for {
line, _, err = reader.ReadLine()
if err == io.EOF || nil != err {
break
}
arr := strings.Fields(string(line))
arrlen := len(arr)
if arrlen != 4 && arrlen != 5 {
log.WriteLog("output of [ss -n -l] format error")
continue
}
ci := 2
if arrlen == 5 {
ci = 3
}
location := strings.LastIndex(arr[ci], ":")
port := arr[ci][location+1:]
if p, e := strconv.ParseInt(port, 10, 64); e != nil {
log.WriteLog("parse port to int64 fail: %s", e)
continue
} else {
ret = append(ret, p)
}
}
ret = utils.SliceUniqueInt64(ret)
return ret, nil
}
func (getAllProcessInfoLinux *GetAllProcessInfoLinux) getCpuMemRate(processInfo *model.ProcessInfo) error {
bs, err := utils.CmdOutputBytes("ps", "aux")
if nil != err {
return err
}
reader := bufio.NewReader(bytes.NewBuffer(bs))
var line []byte
line, _, err = reader.ReadLine()
if err == io.EOF || nil != err {
return errors.New("ps no content")
}
var pid int
for {
line, _, err = reader.ReadLine()
if err == io.EOF || nil != err {
break
}
arr := strings.Fields(string(line))
arrlen := len(arr)
if arrlen < 7 {
log.WriteLog("output of [ps aux] format error")
continue
}
pid, err = strconv.Atoi(arr[1])
if nil != err {
log.WriteLog("err %v", err)
continue
}
if pid == processInfo.Id {
processInfo.CPURate, err = strconv.ParseFloat(arr[2], 32)
if nil != err {
return err
}
processInfo.MemRate, err = strconv.ParseFloat(arr[3], 32)
if nil != err {
return err
}
}
}
return nil
}