+
+ r.reportPIDsMu.Lock()
+ defer r.reportPIDsMu.Unlock()
+ procnames := make([]string, 0, len(r.reportPIDs))
+ for name := range r.reportPIDs {
+ procnames = append(procnames, name)
+ }
+ sort.Strings(procnames)
+ procmem := ""
+ for _, procname := range procnames {
+ pid := r.reportPIDs[procname]
+ buf, err := os.ReadFile(fmt.Sprintf("/proc/%d/stat", pid))
+ if err != nil {
+ continue
+ }
+ // If the executable name contains a ')' char,
+ // /proc/$pid/stat will look like '1234 (exec name)) S
+ // 123 ...' -- the last ')' is the end of the 2nd
+ // field.
+ paren := bytes.LastIndexByte(buf, ')')
+ if paren < 0 {
+ continue
+ }
+ fields := bytes.SplitN(buf[paren:], []byte{' '}, 24)
+ if len(fields) < 24 {
+ continue
+ }
+ // rss is the 24th field in .../stat, and fields[0]
+ // here is the last char ')' of the 2nd field, so
+ // rss is fields[22]
+ rss, err := strconv.Atoi(string(fields[22]))
+ if err != nil {
+ continue
+ }
+ procmem += fmt.Sprintf(" %d %s", rss, procname)
+ }
+ if procmem != "" {
+ r.Logger.Printf("procmem%s\n", procmem)
+ }