in patches/gopsutil/v3/process/process_linux.go [818:1014]
func (p *Process) fillFromStatusWithContext(ctx context.Context) error {
pid := p.Pid
statPath := common.HostProc(strconv.Itoa(int(pid)), "status")
contents, err := ioutil.ReadFile(statPath)
if err != nil {
return err
}
lines := strings.Split(string(contents), "\n")
p.numCtxSwitches = &NumCtxSwitchesStat{}
p.memInfo = &MemoryInfoStat{}
p.sigInfo = &SignalInfoStat{}
for _, line := range lines {
tabParts := strings.SplitN(line, "\t", 2)
if len(tabParts) < 2 {
continue
}
value := tabParts[1]
switch strings.TrimRight(tabParts[0], ":") {
case "Name":
p.name = strings.Trim(value, " \t")
if len(p.name) >= 15 {
cmdlineSlice, err := p.CmdlineSliceWithContext(ctx)
if err != nil {
return err
}
if len(cmdlineSlice) > 0 {
extendedName := filepath.Base(cmdlineSlice[0])
if strings.HasPrefix(extendedName, p.name) {
p.name = extendedName
} else {
p.name = cmdlineSlice[0]
}
}
}
// Ensure we have a copy and not reference into slice
p.name = string([]byte(p.name))
case "State":
p.status = convertStatusChar(value[0:1])
// Ensure we have a copy and not reference into slice
p.status = string([]byte(p.status))
case "PPid", "Ppid":
pval, err := strconv.ParseInt(value, 10, 32)
if err != nil {
return err
}
p.parent = int32(pval)
case "Tgid":
pval, err := strconv.ParseInt(value, 10, 32)
if err != nil {
return err
}
p.tgid = int32(pval)
case "Uid":
p.uids = make([]int32, 0, 4)
for _, i := range strings.Split(value, "\t") {
v, err := strconv.ParseInt(i, 10, 32)
if err != nil {
return err
}
p.uids = append(p.uids, int32(v))
}
case "Gid":
p.gids = make([]int32, 0, 4)
for _, i := range strings.Split(value, "\t") {
v, err := strconv.ParseInt(i, 10, 32)
if err != nil {
return err
}
p.gids = append(p.gids, int32(v))
}
case "Groups":
groups := strings.Fields(value)
p.groups = make([]int32, 0, len(groups))
for _, i := range groups {
v, err := strconv.ParseInt(i, 10, 32)
if err != nil {
return err
}
p.groups = append(p.groups, int32(v))
}
case "Threads":
v, err := strconv.ParseInt(value, 10, 32)
if err != nil {
return err
}
p.numThreads = int32(v)
case "voluntary_ctxt_switches":
v, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
p.numCtxSwitches.Voluntary = v
case "nonvoluntary_ctxt_switches":
v, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
p.numCtxSwitches.Involuntary = v
case "VmRSS":
value := strings.Trim(value, " kB") // remove last "kB"
v, err := strconv.ParseUint(value, 10, 64)
if err != nil {
return err
}
p.memInfo.RSS = v * 1024
case "VmSize":
value := strings.Trim(value, " kB") // remove last "kB"
v, err := strconv.ParseUint(value, 10, 64)
if err != nil {
return err
}
p.memInfo.VMS = v * 1024
case "VmSwap":
value := strings.Trim(value, " kB") // remove last "kB"
v, err := strconv.ParseUint(value, 10, 64)
if err != nil {
return err
}
p.memInfo.Swap = v * 1024
case "VmHWM":
value := strings.Trim(value, " kB") // remove last "kB"
v, err := strconv.ParseUint(value, 10, 64)
if err != nil {
return err
}
p.memInfo.HWM = v * 1024
case "VmData":
value := strings.Trim(value, " kB") // remove last "kB"
v, err := strconv.ParseUint(value, 10, 64)
if err != nil {
return err
}
p.memInfo.Data = v * 1024
case "VmStk":
value := strings.Trim(value, " kB") // remove last "kB"
v, err := strconv.ParseUint(value, 10, 64)
if err != nil {
return err
}
p.memInfo.Stack = v * 1024
case "VmLck":
value := strings.Trim(value, " kB") // remove last "kB"
v, err := strconv.ParseUint(value, 10, 64)
if err != nil {
return err
}
p.memInfo.Locked = v * 1024
case "SigPnd":
if len(value) > 16 {
value = value[len(value)-16:]
}
v, err := strconv.ParseUint(value, 16, 64)
if err != nil {
return err
}
p.sigInfo.PendingThread = v
case "ShdPnd":
if len(value) > 16 {
value = value[len(value)-16:]
}
v, err := strconv.ParseUint(value, 16, 64)
if err != nil {
return err
}
p.sigInfo.PendingProcess = v
case "SigBlk":
if len(value) > 16 {
value = value[len(value)-16:]
}
v, err := strconv.ParseUint(value, 16, 64)
if err != nil {
return err
}
p.sigInfo.Blocked = v
case "SigIgn":
if len(value) > 16 {
value = value[len(value)-16:]
}
v, err := strconv.ParseUint(value, 16, 64)
if err != nil {
return err
}
p.sigInfo.Ignored = v
case "SigCgt":
if len(value) > 16 {
value = value[len(value)-16:]
}
v, err := strconv.ParseUint(value, 16, 64)
if err != nil {
return err
}
p.sigInfo.Caught = v
}
}
return nil
}