507 lines
11 KiB
Go
507 lines
11 KiB
Go
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// +build darwin
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package process
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import (
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"bytes"
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"encoding/binary"
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"fmt"
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"os/exec"
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"strconv"
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"strings"
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"syscall"
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"time"
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"unsafe"
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"github.com/shirou/gopsutil/cpu"
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"github.com/shirou/gopsutil/internal/common"
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"github.com/shirou/gopsutil/net"
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)
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// copied from sys/sysctl.h
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const (
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CTLKern = 1 // "high kernel": proc, limits
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KernProc = 14 // struct: process entries
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KernProcPID = 1 // by process id
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KernProcProc = 8 // only return procs
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KernProcAll = 0 // everything
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KernProcPathname = 12 // path to executable
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)
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const (
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ClockTicks = 100 // C.sysconf(C._SC_CLK_TCK)
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)
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type _Ctype_struct___0 struct {
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Pad uint64
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}
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// MemoryInfoExStat is different between OSes
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type MemoryInfoExStat struct {
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}
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type MemoryMapsStat struct {
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}
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func Pids() ([]int32, error) {
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var ret []int32
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pids, err := callPs("pid", 0, false)
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if err != nil {
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return ret, err
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}
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for _, pid := range pids {
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v, err := strconv.Atoi(pid[0])
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if err != nil {
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return ret, err
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}
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ret = append(ret, int32(v))
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}
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return ret, nil
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}
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func (p *Process) Ppid() (int32, error) {
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r, err := callPs("ppid", p.Pid, false)
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v, err := strconv.Atoi(r[0][0])
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if err != nil {
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return 0, err
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}
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return int32(v), err
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}
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func (p *Process) Name() (string, error) {
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k, err := p.getKProc()
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if err != nil {
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return "", err
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}
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return common.IntToString(k.Proc.P_comm[:]), nil
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}
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func (p *Process) Exe() (string, error) {
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lsof_bin, err := exec.LookPath("lsof")
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if err != nil {
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return "", err
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}
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awk_bin, err := exec.LookPath("awk")
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if err != nil {
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return "", err
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}
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sed_bin, err := exec.LookPath("sed")
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if err != nil {
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return "", err
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}
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lsof := exec.Command(lsof_bin, "-p", strconv.Itoa(int(p.Pid)), "-Fn")
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awk := exec.Command(awk_bin, "NR==3{print}")
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sed := exec.Command(sed_bin, "s/n\\//\\//")
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output, _, err := common.Pipeline(lsof, awk, sed)
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if err != nil {
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return "", err
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}
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ret := strings.TrimSpace(string(output))
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return ret, nil
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}
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// Cmdline returns the command line arguments of the process as a string with
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// each argument separated by 0x20 ascii character.
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func (p *Process) Cmdline() (string, error) {
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r, err := callPs("command", p.Pid, false)
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if err != nil {
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return "", err
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}
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return strings.Join(r[0], " "), err
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}
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// CmdlineSlice returns the command line arguments of the process as a slice with each
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// element being an argument. Because of current deficiencies in the way that the command
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// line arguments are found, single arguments that have spaces in the will actually be
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// reported as two separate items. In order to do something better CGO would be needed
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// to use the native darwin functions.
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func (p *Process) CmdlineSlice() ([]string, error) {
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r, err := callPs("command", p.Pid, false)
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if err != nil {
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return nil, err
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}
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return r[0], err
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}
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func (p *Process) CreateTime() (int64, error) {
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r, err := callPs("etime", p.Pid, false)
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if err != nil {
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return 0, err
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}
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elapsedSegments := strings.Split(strings.Replace(r[0][0], "-", ":", 1), ":")
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var elapsedDurations []time.Duration
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for i := len(elapsedSegments) - 1; i >= 0; i-- {
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p, err := strconv.ParseInt(elapsedSegments[i], 10, 0)
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if err != nil {
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return 0, err
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}
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elapsedDurations = append(elapsedDurations, time.Duration(p))
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}
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var elapsed time.Duration = time.Duration(elapsedDurations[0]) * time.Second
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if len(elapsedDurations) > 1 {
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elapsed += time.Duration(elapsedDurations[1]) * time.Minute
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}
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if len(elapsedDurations) > 2 {
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elapsed += time.Duration(elapsedDurations[2]) * time.Hour
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}
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if len(elapsedDurations) > 3 {
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elapsed += time.Duration(elapsedDurations[3]) * time.Hour * 24
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}
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start := time.Now().Add(-elapsed)
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return start.Unix() * 1000, nil
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}
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func (p *Process) Cwd() (string, error) {
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return "", common.ErrNotImplementedError
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}
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func (p *Process) Parent() (*Process, error) {
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rr, err := common.CallLsof(invoke, p.Pid, "-FR")
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if err != nil {
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return nil, err
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}
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for _, r := range rr {
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if strings.HasPrefix(r, "p") { // skip if process
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continue
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}
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l := string(r)
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v, err := strconv.Atoi(strings.Replace(l, "R", "", 1))
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if err != nil {
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return nil, err
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}
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return NewProcess(int32(v))
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}
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return nil, fmt.Errorf("could not find parent line")
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}
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func (p *Process) Status() (string, error) {
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r, err := callPs("state", p.Pid, false)
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if err != nil {
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return "", err
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}
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return r[0][0], err
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}
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func (p *Process) Uids() ([]int32, error) {
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k, err := p.getKProc()
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if err != nil {
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return nil, err
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}
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// See: http://unix.superglobalmegacorp.com/Net2/newsrc/sys/ucred.h.html
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userEffectiveUID := int32(k.Eproc.Ucred.UID)
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return []int32{userEffectiveUID}, nil
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}
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func (p *Process) Gids() ([]int32, error) {
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k, err := p.getKProc()
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if err != nil {
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return nil, err
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}
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gids := make([]int32, 0, 3)
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gids = append(gids, int32(k.Eproc.Pcred.P_rgid), int32(k.Eproc.Ucred.Ngroups), int32(k.Eproc.Pcred.P_svgid))
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return gids, nil
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}
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func (p *Process) Terminal() (string, error) {
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return "", common.ErrNotImplementedError
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/*
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k, err := p.getKProc()
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if err != nil {
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return "", err
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}
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ttyNr := uint64(k.Eproc.Tdev)
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termmap, err := getTerminalMap()
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if err != nil {
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return "", err
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}
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return termmap[ttyNr], nil
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*/
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}
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func (p *Process) Nice() (int32, error) {
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k, err := p.getKProc()
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if err != nil {
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return 0, err
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}
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return int32(k.Proc.P_nice), nil
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}
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func (p *Process) IOnice() (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) Rlimit() ([]RlimitStat, error) {
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var rlimit []RlimitStat
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return rlimit, common.ErrNotImplementedError
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}
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func (p *Process) IOCounters() (*IOCountersStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) NumCtxSwitches() (*NumCtxSwitchesStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) NumFDs() (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) NumThreads() (int32, error) {
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r, err := callPs("utime,stime", p.Pid, true)
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if err != nil {
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return 0, err
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}
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return int32(len(r)), nil
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}
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func (p *Process) Threads() (map[string]string, error) {
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ret := make(map[string]string, 0)
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return ret, common.ErrNotImplementedError
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}
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func convertCPUTimes(s string) (ret float64, err error) {
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var t int
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var _tmp string
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if strings.Contains(s, ":") {
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_t := strings.Split(s, ":")
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hour, err := strconv.Atoi(_t[0])
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if err != nil {
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return ret, err
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}
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t += hour * 60 * 100
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_tmp = _t[1]
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} else {
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_tmp = s
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}
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_t := strings.Split(_tmp, ".")
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if err != nil {
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return ret, err
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}
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h, err := strconv.Atoi(_t[0])
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t += h * 100
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h, err = strconv.Atoi(_t[1])
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t += h
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return float64(t) / ClockTicks, nil
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}
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func (p *Process) Times() (*cpu.TimesStat, error) {
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r, err := callPs("utime,stime", p.Pid, false)
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if err != nil {
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return nil, err
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}
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utime, err := convertCPUTimes(r[0][0])
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if err != nil {
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return nil, err
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}
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stime, err := convertCPUTimes(r[0][1])
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if err != nil {
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return nil, err
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}
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ret := &cpu.TimesStat{
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CPU: "cpu",
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User: utime,
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System: stime,
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}
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return ret, nil
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}
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func (p *Process) CPUAffinity() ([]int32, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) MemoryInfo() (*MemoryInfoStat, error) {
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r, err := callPs("rss,vsize,pagein", p.Pid, false)
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if err != nil {
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return nil, err
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}
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rss, err := strconv.Atoi(r[0][0])
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if err != nil {
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return nil, err
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}
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vms, err := strconv.Atoi(r[0][1])
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if err != nil {
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return nil, err
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}
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pagein, err := strconv.Atoi(r[0][2])
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if err != nil {
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return nil, err
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}
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ret := &MemoryInfoStat{
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RSS: uint64(rss) * 1024,
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VMS: uint64(vms) * 1024,
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Swap: uint64(pagein),
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}
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return ret, nil
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}
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func (p *Process) MemoryInfoEx() (*MemoryInfoExStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) Children() ([]*Process, error) {
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pids, err := common.CallPgrep(invoke, p.Pid)
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if err != nil {
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return nil, err
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}
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ret := make([]*Process, 0, len(pids))
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for _, pid := range pids {
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np, err := NewProcess(pid)
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if err != nil {
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return nil, err
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}
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ret = append(ret, np)
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}
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return ret, nil
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}
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func (p *Process) OpenFiles() ([]OpenFilesStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) Connections() ([]net.ConnectionStat, error) {
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return net.ConnectionsPid("all", p.Pid)
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}
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func (p *Process) NetIOCounters(pernic bool) ([]net.IOCountersStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) IsRunning() (bool, error) {
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return true, common.ErrNotImplementedError
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}
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func (p *Process) MemoryMaps(grouped bool) (*[]MemoryMapsStat, error) {
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var ret []MemoryMapsStat
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return &ret, common.ErrNotImplementedError
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}
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func processes() ([]Process, error) {
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results := make([]Process, 0, 50)
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mib := []int32{CTLKern, KernProc, KernProcAll, 0}
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buf, length, err := common.CallSyscall(mib)
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if err != nil {
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||
|
|
return results, err
|
||
|
|
}
|
||
|
|
|
||
|
|
// get kinfo_proc size
|
||
|
|
k := KinfoProc{}
|
||
|
|
procinfoLen := int(unsafe.Sizeof(k))
|
||
|
|
count := int(length / uint64(procinfoLen))
|
||
|
|
/*
|
||
|
|
fmt.Println(length, procinfoLen, count)
|
||
|
|
b := buf[0*procinfoLen : 0*procinfoLen+procinfoLen]
|
||
|
|
fmt.Println(b)
|
||
|
|
kk, err := parseKinfoProc(b)
|
||
|
|
fmt.Printf("%#v", kk)
|
||
|
|
*/
|
||
|
|
|
||
|
|
// parse buf to procs
|
||
|
|
for i := 0; i < count; i++ {
|
||
|
|
b := buf[i*procinfoLen : i*procinfoLen+procinfoLen]
|
||
|
|
k, err := parseKinfoProc(b)
|
||
|
|
if err != nil {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
p, err := NewProcess(int32(k.Proc.P_pid))
|
||
|
|
if err != nil {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
results = append(results, *p)
|
||
|
|
}
|
||
|
|
|
||
|
|
return results, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func parseKinfoProc(buf []byte) (KinfoProc, error) {
|
||
|
|
var k KinfoProc
|
||
|
|
br := bytes.NewReader(buf)
|
||
|
|
|
||
|
|
err := common.Read(br, binary.LittleEndian, &k)
|
||
|
|
if err != nil {
|
||
|
|
return k, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return k, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Returns a proc as defined here:
|
||
|
|
// http://unix.superglobalmegacorp.com/Net2/newsrc/sys/kinfo_proc.h.html
|
||
|
|
func (p *Process) getKProc() (*KinfoProc, error) {
|
||
|
|
mib := []int32{CTLKern, KernProc, KernProcPID, p.Pid}
|
||
|
|
procK := KinfoProc{}
|
||
|
|
length := uint64(unsafe.Sizeof(procK))
|
||
|
|
buf := make([]byte, length)
|
||
|
|
_, _, syserr := syscall.Syscall6(
|
||
|
|
syscall.SYS___SYSCTL,
|
||
|
|
uintptr(unsafe.Pointer(&mib[0])),
|
||
|
|
uintptr(len(mib)),
|
||
|
|
uintptr(unsafe.Pointer(&buf[0])),
|
||
|
|
uintptr(unsafe.Pointer(&length)),
|
||
|
|
0,
|
||
|
|
0)
|
||
|
|
if syserr != 0 {
|
||
|
|
return nil, syserr
|
||
|
|
}
|
||
|
|
k, err := parseKinfoProc(buf)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return &k, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func NewProcess(pid int32) (*Process, error) {
|
||
|
|
p := &Process{Pid: pid}
|
||
|
|
|
||
|
|
return p, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// call ps command.
|
||
|
|
// Return value deletes Header line(you must not input wrong arg).
|
||
|
|
// And splited by Space. Caller have responsibility to manage.
|
||
|
|
// If passed arg pid is 0, get information from all process.
|
||
|
|
func callPs(arg string, pid int32, threadOption bool) ([][]string, error) {
|
||
|
|
bin, err := exec.LookPath("ps")
|
||
|
|
if err != nil {
|
||
|
|
return [][]string{}, err
|
||
|
|
}
|
||
|
|
|
||
|
|
var cmd []string
|
||
|
|
if pid == 0 { // will get from all processes.
|
||
|
|
cmd = []string{"-ax", "-o", arg}
|
||
|
|
} else if threadOption {
|
||
|
|
cmd = []string{"-x", "-o", arg, "-M", "-p", strconv.Itoa(int(pid))}
|
||
|
|
} else {
|
||
|
|
cmd = []string{"-x", "-o", arg, "-p", strconv.Itoa(int(pid))}
|
||
|
|
}
|
||
|
|
out, err := invoke.Command(bin, cmd...)
|
||
|
|
if err != nil {
|
||
|
|
return [][]string{}, err
|
||
|
|
}
|
||
|
|
lines := strings.Split(string(out), "\n")
|
||
|
|
|
||
|
|
var ret [][]string
|
||
|
|
for _, l := range lines[1:] {
|
||
|
|
var lr []string
|
||
|
|
for _, r := range strings.Split(l, " ") {
|
||
|
|
if r == "" {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
lr = append(lr, strings.TrimSpace(r))
|
||
|
|
}
|
||
|
|
if len(lr) != 0 {
|
||
|
|
ret = append(ret, lr)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret, nil
|
||
|
|
}
|