461 lines
11 KiB
Go
461 lines
11 KiB
Go
// +build darwin
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package process
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import (
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"context"
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"fmt"
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"os/exec"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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"github.com/shirou/gopsutil/v3/cpu"
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"github.com/shirou/gopsutil/v3/internal/common"
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"github.com/shirou/gopsutil/v3/net"
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"golang.org/x/sys/unix"
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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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func pidsWithContext(ctx context.Context) ([]int32, error) {
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var ret []int32
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pids, err := callPsWithContext(ctx, "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) PpidWithContext(ctx context.Context) (int32, error) {
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r, err := callPsWithContext(ctx, "ppid", 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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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) NameWithContext(ctx context.Context) (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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name := common.IntToString(k.Proc.P_comm[:])
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if len(name) >= 15 {
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cmdlineSlice, err := p.CmdlineSliceWithContext(ctx)
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if err != nil {
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return "", err
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}
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if len(cmdlineSlice) > 0 {
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extendedName := filepath.Base(cmdlineSlice[0])
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if strings.HasPrefix(extendedName, p.name) {
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name = extendedName
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} else {
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name = cmdlineSlice[0]
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}
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}
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}
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return name, nil
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}
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func (p *Process) CmdlineWithContext(ctx context.Context) (string, error) {
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r, err := callPsWithContext(ctx, "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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// CmdlineSliceWithContext 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) CmdlineSliceWithContext(ctx context.Context) ([]string, error) {
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r, err := callPsWithContext(ctx, "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) createTimeWithContext(ctx context.Context) (int64, error) {
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r, err := callPsWithContext(ctx, "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(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) ParentWithContext(ctx context.Context) (*Process, error) {
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rr, err := common.CallLsofWithContext(ctx, 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 NewProcessWithContext(ctx, 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) StatusWithContext(ctx context.Context) ([]string, error) {
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r, err := callPsWithContext(ctx, "state", p.Pid, false)
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if err != nil {
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return []string{""}, err
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}
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status := convertStatusChar(r[0][0][0:1])
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return []string{status}, err
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}
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func (p *Process) ForegroundWithContext(ctx context.Context) (bool, error) {
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// see https://github.com/shirou/gopsutil/issues/596#issuecomment-432707831 for implementation details
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pid := p.Pid
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ps, err := exec.LookPath("ps")
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if err != nil {
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return false, err
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}
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out, err := invoke.CommandWithContext(ctx, ps, "-o", "stat=", "-p", strconv.Itoa(int(pid)))
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if err != nil {
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return false, err
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}
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return strings.IndexByte(string(out), '+') != -1, nil
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}
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func (p *Process) UidsWithContext(ctx context.Context) ([]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) GidsWithContext(ctx context.Context) ([]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) GroupsWithContext(ctx context.Context) ([]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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groups := make([]int32, k.Eproc.Ucred.Ngroups)
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for i := int16(0); i < k.Eproc.Ucred.Ngroups; i++ {
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groups[i] = int32(k.Eproc.Ucred.Groups[i])
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}
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return groups, nil
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}
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func (p *Process) TerminalWithContext(ctx context.Context) (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) NiceWithContext(ctx context.Context) (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) IOCountersWithContext(ctx context.Context) (*IOCountersStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) NumThreadsWithContext(ctx context.Context) (int32, error) {
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r, err := callPsWithContext(ctx, "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 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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switch len(_t) {
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case 3:
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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 * 60 * clockTicks
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mins, err := strconv.Atoi(_t[1])
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if err != nil {
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return ret, err
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}
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t += mins * 60 * clockTicks
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_tmp = _t[2]
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case 2:
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mins, 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 += mins * 60 * clockTicks
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_tmp = _t[1]
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case 1, 0:
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_tmp = s
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default:
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return ret, fmt.Errorf("wrong cpu time string")
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}
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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 * clockTicks
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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) TimesWithContext(ctx context.Context) (*cpu.TimesStat, error) {
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r, err := callPsWithContext(ctx, "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) MemoryInfoWithContext(ctx context.Context) (*MemoryInfoStat, error) {
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r, err := callPsWithContext(ctx, "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) ChildrenWithContext(ctx context.Context) ([]*Process, error) {
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pids, err := common.CallPgrepWithContext(ctx, 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 := NewProcessWithContext(ctx, 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) ConnectionsWithContext(ctx context.Context) ([]net.ConnectionStat, error) {
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return net.ConnectionsPidWithContext(ctx, "all", p.Pid)
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}
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func (p *Process) ConnectionsMaxWithContext(ctx context.Context, max int) ([]net.ConnectionStat, error) {
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return net.ConnectionsPidMaxWithContext(ctx, "all", p.Pid, max)
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}
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func ProcessesWithContext(ctx context.Context) ([]*Process, error) {
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out := []*Process{}
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pids, err := PidsWithContext(ctx)
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if err != nil {
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return out, err
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}
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for _, pid := range pids {
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p, err := NewProcessWithContext(ctx, pid)
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if err != nil {
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continue
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}
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out = append(out, p)
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}
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return out, nil
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}
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// Returns a proc as defined here:
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// http://unix.superglobalmegacorp.com/Net2/newsrc/sys/kinfo_proc.h.html
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func (p *Process) getKProc() (*KinfoProc, error) {
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buf, err := unix.SysctlRaw("kern.proc.pid", int(p.Pid))
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if err != nil {
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return nil, err
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}
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k, err := parseKinfoProc(buf)
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if err != nil {
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return nil, err
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}
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return &k, nil
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}
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// call ps command.
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// Return value deletes Header line(you must not input wrong arg).
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// And splited by Space. Caller have responsibility to manage.
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// If passed arg pid is 0, get information from all process.
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func callPsWithContext(ctx context.Context, arg string, pid int32, threadOption bool) ([][]string, error) {
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bin, err := exec.LookPath("ps")
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if err != nil {
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return [][]string{}, err
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}
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var cmd []string
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if pid == 0 { // will get from all processes.
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cmd = []string{"-ax", "-o", arg}
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} else if threadOption {
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cmd = []string{"-x", "-o", arg, "-M", "-p", strconv.Itoa(int(pid))}
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} else {
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cmd = []string{"-x", "-o", arg, "-p", strconv.Itoa(int(pid))}
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}
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out, err := invoke.CommandWithContext(ctx, bin, cmd...)
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if err != nil {
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return [][]string{}, err
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}
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lines := strings.Split(string(out), "\n")
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var ret [][]string
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for _, l := range lines[1:] {
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var lr []string
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for _, r := range strings.Split(l, " ") {
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if r == "" {
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continue
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}
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lr = append(lr, strings.TrimSpace(r))
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}
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if len(lr) != 0 {
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ret = append(ret, lr)
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}
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}
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return ret, nil
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}
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