open-vault/vendor/github.com/shirou/gopsutil/process/process_darwin.go
Sam Salisbury a9aa4d301f
update gopsutil@01afd763e6c0 + go mod vendor (#9346)
- This version of gopsutil fixes the build for FreeBSD.
- See https://github.com/shirou/gopsutil/pull/895
2020-07-07 16:14:48 +01:00

658 lines
16 KiB
Go

// +build darwin
package process
import (
"bytes"
"context"
"encoding/binary"
"fmt"
"os/exec"
"path/filepath"
"strconv"
"strings"
"time"
"unsafe"
"github.com/shirou/gopsutil/cpu"
"github.com/shirou/gopsutil/internal/common"
"github.com/shirou/gopsutil/net"
"golang.org/x/sys/unix"
)
// copied from sys/sysctl.h
const (
CTLKern = 1 // "high kernel": proc, limits
KernProc = 14 // struct: process entries
KernProcPID = 1 // by process id
KernProcProc = 8 // only return procs
KernProcAll = 0 // everything
KernProcPathname = 12 // path to executable
)
const (
ClockTicks = 100 // C.sysconf(C._SC_CLK_TCK)
)
type _Ctype_struct___0 struct {
Pad uint64
}
// MemoryInfoExStat is different between OSes
type MemoryInfoExStat struct {
}
type MemoryMapsStat struct {
}
func pidsWithContext(ctx context.Context) ([]int32, error) {
var ret []int32
pids, err := callPsWithContext(ctx, "pid", 0, false)
if err != nil {
return ret, err
}
for _, pid := range pids {
v, err := strconv.Atoi(pid[0])
if err != nil {
return ret, err
}
ret = append(ret, int32(v))
}
return ret, nil
}
func (p *Process) Ppid() (int32, error) {
return p.PpidWithContext(context.Background())
}
func (p *Process) PpidWithContext(ctx context.Context) (int32, error) {
r, err := callPsWithContext(ctx, "ppid", p.Pid, false)
if err != nil {
return 0, err
}
v, err := strconv.Atoi(r[0][0])
if err != nil {
return 0, err
}
return int32(v), err
}
func (p *Process) Name() (string, error) {
return p.NameWithContext(context.Background())
}
func (p *Process) NameWithContext(ctx context.Context) (string, error) {
k, err := p.getKProc()
if err != nil {
return "", err
}
name := common.IntToString(k.Proc.P_comm[:])
if len(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) {
name = extendedName
} else {
name = cmdlineSlice[0]
}
}
}
return name, nil
}
func (p *Process) Tgid() (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) Exe() (string, error) {
return p.ExeWithContext(context.Background())
}
// Cmdline returns the command line arguments of the process as a string with
// each argument separated by 0x20 ascii character.
func (p *Process) Cmdline() (string, error) {
return p.CmdlineWithContext(context.Background())
}
func (p *Process) CmdlineWithContext(ctx context.Context) (string, error) {
r, err := callPsWithContext(ctx, "command", p.Pid, false)
if err != nil {
return "", err
}
return strings.Join(r[0], " "), err
}
// CmdlineSlice returns the command line arguments of the process as a slice with each
// element being an argument. Because of current deficiencies in the way that the command
// line arguments are found, single arguments that have spaces in the will actually be
// reported as two separate items. In order to do something better CGO would be needed
// to use the native darwin functions.
func (p *Process) CmdlineSlice() ([]string, error) {
return p.CmdlineSliceWithContext(context.Background())
}
func (p *Process) CmdlineSliceWithContext(ctx context.Context) ([]string, error) {
r, err := callPsWithContext(ctx, "command", p.Pid, false)
if err != nil {
return nil, err
}
return r[0], err
}
func (p *Process) createTimeWithContext(ctx context.Context) (int64, error) {
r, err := callPsWithContext(ctx, "etime", p.Pid, false)
if err != nil {
return 0, err
}
elapsedSegments := strings.Split(strings.Replace(r[0][0], "-", ":", 1), ":")
var elapsedDurations []time.Duration
for i := len(elapsedSegments) - 1; i >= 0; i-- {
p, err := strconv.ParseInt(elapsedSegments[i], 10, 0)
if err != nil {
return 0, err
}
elapsedDurations = append(elapsedDurations, time.Duration(p))
}
var elapsed = time.Duration(elapsedDurations[0]) * time.Second
if len(elapsedDurations) > 1 {
elapsed += time.Duration(elapsedDurations[1]) * time.Minute
}
if len(elapsedDurations) > 2 {
elapsed += time.Duration(elapsedDurations[2]) * time.Hour
}
if len(elapsedDurations) > 3 {
elapsed += time.Duration(elapsedDurations[3]) * time.Hour * 24
}
start := time.Now().Add(-elapsed)
return start.Unix() * 1000, nil
}
func (p *Process) Cwd() (string, error) {
return p.CwdWithContext(context.Background())
}
func (p *Process) CwdWithContext(ctx context.Context) (string, error) {
return "", common.ErrNotImplementedError
}
func (p *Process) Parent() (*Process, error) {
return p.ParentWithContext(context.Background())
}
func (p *Process) ParentWithContext(ctx context.Context) (*Process, error) {
rr, err := common.CallLsofWithContext(ctx, invoke, p.Pid, "-FR")
if err != nil {
return nil, err
}
for _, r := range rr {
if strings.HasPrefix(r, "p") { // skip if process
continue
}
l := string(r)
v, err := strconv.Atoi(strings.Replace(l, "R", "", 1))
if err != nil {
return nil, err
}
return NewProcess(int32(v))
}
return nil, fmt.Errorf("could not find parent line")
}
func (p *Process) Status() (string, error) {
return p.StatusWithContext(context.Background())
}
func (p *Process) StatusWithContext(ctx context.Context) (string, error) {
r, err := callPsWithContext(ctx, "state", p.Pid, false)
if err != nil {
return "", err
}
return r[0][0][0:1], err
}
func (p *Process) Foreground() (bool, error) {
return p.ForegroundWithContext(context.Background())
}
func (p *Process) ForegroundWithContext(ctx context.Context) (bool, error) {
// see https://github.com/shirou/gopsutil/issues/596#issuecomment-432707831 for implementation details
pid := p.Pid
ps, err := exec.LookPath("ps")
if err != nil {
return false, err
}
out, err := invoke.CommandWithContext(ctx, ps, "-o", "stat=", "-p", strconv.Itoa(int(pid)))
if err != nil {
return false, err
}
return strings.IndexByte(string(out), '+') != -1, nil
}
func (p *Process) Uids() ([]int32, error) {
return p.UidsWithContext(context.Background())
}
func (p *Process) UidsWithContext(ctx context.Context) ([]int32, error) {
k, err := p.getKProc()
if err != nil {
return nil, err
}
// See: http://unix.superglobalmegacorp.com/Net2/newsrc/sys/ucred.h.html
userEffectiveUID := int32(k.Eproc.Ucred.UID)
return []int32{userEffectiveUID}, nil
}
func (p *Process) Gids() ([]int32, error) {
return p.GidsWithContext(context.Background())
}
func (p *Process) GidsWithContext(ctx context.Context) ([]int32, error) {
k, err := p.getKProc()
if err != nil {
return nil, err
}
gids := make([]int32, 0, 3)
gids = append(gids, int32(k.Eproc.Pcred.P_rgid), int32(k.Eproc.Ucred.Ngroups), int32(k.Eproc.Pcred.P_svgid))
return gids, nil
}
func (p *Process) Terminal() (string, error) {
return p.TerminalWithContext(context.Background())
}
func (p *Process) TerminalWithContext(ctx context.Context) (string, error) {
return "", common.ErrNotImplementedError
/*
k, err := p.getKProc()
if err != nil {
return "", err
}
ttyNr := uint64(k.Eproc.Tdev)
termmap, err := getTerminalMap()
if err != nil {
return "", err
}
return termmap[ttyNr], nil
*/
}
func (p *Process) Nice() (int32, error) {
return p.NiceWithContext(context.Background())
}
func (p *Process) NiceWithContext(ctx context.Context) (int32, error) {
k, err := p.getKProc()
if err != nil {
return 0, err
}
return int32(k.Proc.P_nice), nil
}
func (p *Process) IOnice() (int32, error) {
return p.IOniceWithContext(context.Background())
}
func (p *Process) IOniceWithContext(ctx context.Context) (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) Rlimit() ([]RlimitStat, error) {
return p.RlimitWithContext(context.Background())
}
func (p *Process) RlimitWithContext(ctx context.Context) ([]RlimitStat, error) {
var rlimit []RlimitStat
return rlimit, common.ErrNotImplementedError
}
func (p *Process) RlimitUsage(gatherUsed bool) ([]RlimitStat, error) {
return p.RlimitUsageWithContext(context.Background(), gatherUsed)
}
func (p *Process) RlimitUsageWithContext(ctx context.Context, gatherUsed bool) ([]RlimitStat, error) {
var rlimit []RlimitStat
return rlimit, common.ErrNotImplementedError
}
func (p *Process) IOCounters() (*IOCountersStat, error) {
return p.IOCountersWithContext(context.Background())
}
func (p *Process) IOCountersWithContext(ctx context.Context) (*IOCountersStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) NumCtxSwitches() (*NumCtxSwitchesStat, error) {
return p.NumCtxSwitchesWithContext(context.Background())
}
func (p *Process) NumCtxSwitchesWithContext(ctx context.Context) (*NumCtxSwitchesStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) NumFDs() (int32, error) {
return p.NumFDsWithContext(context.Background())
}
func (p *Process) NumFDsWithContext(ctx context.Context) (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) NumThreads() (int32, error) {
return p.NumThreadsWithContext(context.Background())
}
func (p *Process) NumThreadsWithContext(ctx context.Context) (int32, error) {
r, err := callPsWithContext(ctx, "utime,stime", p.Pid, true)
if err != nil {
return 0, err
}
return int32(len(r)), nil
}
func (p *Process) Threads() (map[int32]*cpu.TimesStat, error) {
return p.ThreadsWithContext(context.Background())
}
func (p *Process) ThreadsWithContext(ctx context.Context) (map[int32]*cpu.TimesStat, error) {
ret := make(map[int32]*cpu.TimesStat)
return ret, common.ErrNotImplementedError
}
func convertCPUTimes(s string) (ret float64, err error) {
var t int
var _tmp string
if strings.Contains(s, ":") {
_t := strings.Split(s, ":")
switch len(_t) {
case 3:
hour, err := strconv.Atoi(_t[0])
if err != nil {
return ret, err
}
t += hour * 60 * 60 * ClockTicks
mins, err := strconv.Atoi(_t[1])
if err != nil {
return ret, err
}
t += mins * 60 * ClockTicks
_tmp = _t[2]
case 2:
mins, err := strconv.Atoi(_t[0])
if err != nil {
return ret, err
}
t += mins * 60 * ClockTicks
_tmp = _t[1]
case 1, 0:
_tmp = s
default:
return ret, fmt.Errorf("wrong cpu time string")
}
} else {
_tmp = s
}
_t := strings.Split(_tmp, ".")
if err != nil {
return ret, err
}
h, err := strconv.Atoi(_t[0])
t += h * ClockTicks
h, err = strconv.Atoi(_t[1])
t += h
return float64(t) / ClockTicks, nil
}
func (p *Process) Times() (*cpu.TimesStat, error) {
return p.TimesWithContext(context.Background())
}
func (p *Process) TimesWithContext(ctx context.Context) (*cpu.TimesStat, error) {
r, err := callPsWithContext(ctx, "utime,stime", p.Pid, false)
if err != nil {
return nil, err
}
utime, err := convertCPUTimes(r[0][0])
if err != nil {
return nil, err
}
stime, err := convertCPUTimes(r[0][1])
if err != nil {
return nil, err
}
ret := &cpu.TimesStat{
CPU: "cpu",
User: utime,
System: stime,
}
return ret, nil
}
func (p *Process) CPUAffinity() ([]int32, error) {
return p.CPUAffinityWithContext(context.Background())
}
func (p *Process) CPUAffinityWithContext(ctx context.Context) ([]int32, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) MemoryInfo() (*MemoryInfoStat, error) {
return p.MemoryInfoWithContext(context.Background())
}
func (p *Process) MemoryInfoWithContext(ctx context.Context) (*MemoryInfoStat, error) {
r, err := callPsWithContext(ctx, "rss,vsize,pagein", p.Pid, false)
if err != nil {
return nil, err
}
rss, err := strconv.Atoi(r[0][0])
if err != nil {
return nil, err
}
vms, err := strconv.Atoi(r[0][1])
if err != nil {
return nil, err
}
pagein, err := strconv.Atoi(r[0][2])
if err != nil {
return nil, err
}
ret := &MemoryInfoStat{
RSS: uint64(rss) * 1024,
VMS: uint64(vms) * 1024,
Swap: uint64(pagein),
}
return ret, nil
}
func (p *Process) MemoryInfoEx() (*MemoryInfoExStat, error) {
return p.MemoryInfoExWithContext(context.Background())
}
func (p *Process) MemoryInfoExWithContext(ctx context.Context) (*MemoryInfoExStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) PageFaults() (*PageFaultsStat, error) {
return p.PageFaultsWithContext(context.Background())
}
func (p *Process) PageFaultsWithContext(ctx context.Context) (*PageFaultsStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) Children() ([]*Process, error) {
return p.ChildrenWithContext(context.Background())
}
func (p *Process) ChildrenWithContext(ctx context.Context) ([]*Process, error) {
pids, err := common.CallPgrepWithContext(ctx, invoke, p.Pid)
if err != nil {
return nil, err
}
ret := make([]*Process, 0, len(pids))
for _, pid := range pids {
np, err := NewProcess(pid)
if err != nil {
return nil, err
}
ret = append(ret, np)
}
return ret, nil
}
func (p *Process) OpenFiles() ([]OpenFilesStat, error) {
return p.OpenFilesWithContext(context.Background())
}
func (p *Process) OpenFilesWithContext(ctx context.Context) ([]OpenFilesStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) Connections() ([]net.ConnectionStat, error) {
return p.ConnectionsWithContext(context.Background())
}
func (p *Process) ConnectionsWithContext(ctx context.Context) ([]net.ConnectionStat, error) {
return net.ConnectionsPid("all", p.Pid)
}
// Connections returns a slice of net.ConnectionStat used by the process at most `max`
func (p *Process) ConnectionsMax(max int) ([]net.ConnectionStat, error) {
return p.ConnectionsMaxWithContext(context.Background(), max)
}
func (p *Process) ConnectionsMaxWithContext(ctx context.Context, max int) ([]net.ConnectionStat, error) {
return net.ConnectionsPidMax("all", p.Pid, max)
}
func (p *Process) NetIOCounters(pernic bool) ([]net.IOCountersStat, error) {
return p.NetIOCountersWithContext(context.Background(), pernic)
}
func (p *Process) NetIOCountersWithContext(ctx context.Context, pernic bool) ([]net.IOCountersStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) MemoryMaps(grouped bool) (*[]MemoryMapsStat, error) {
return p.MemoryMapsWithContext(context.Background(), grouped)
}
func (p *Process) MemoryMapsWithContext(ctx context.Context, grouped bool) (*[]MemoryMapsStat, error) {
var ret []MemoryMapsStat
return &ret, common.ErrNotImplementedError
}
func Processes() ([]*Process, error) {
return ProcessesWithContext(context.Background())
}
func ProcessesWithContext(ctx context.Context) ([]*Process, error) {
out := []*Process{}
pids, err := PidsWithContext(ctx)
if err != nil {
return out, err
}
for _, pid := range pids {
p, err := NewProcess(pid)
if err != nil {
continue
}
out = append(out, p)
}
return out, 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) {
return p.getKProcWithContext(context.Background())
}
func (p *Process) getKProcWithContext(ctx context.Context) (*KinfoProc, error) {
mib := []int32{CTLKern, KernProc, KernProcPID, p.Pid}
procK := KinfoProc{}
length := uint64(unsafe.Sizeof(procK))
buf := make([]byte, length)
_, _, syserr := unix.Syscall6(
unix.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
}
// 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 callPsWithContext(ctx context.Context, 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.CommandWithContext(ctx, 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
}