open-consul/vendor/github.com/shirou/gopsutil/process/process_darwin.go

507 lines
11 KiB
Go

// +build darwin
package process
import (
"bytes"
"encoding/binary"
"fmt"
"os/exec"
"strconv"
"strings"
"syscall"
"time"
"unsafe"
"github.com/shirou/gopsutil/cpu"
"github.com/shirou/gopsutil/internal/common"
"github.com/shirou/gopsutil/net"
)
// 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 Pids() ([]int32, error) {
var ret []int32
pids, err := callPs("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) {
r, err := callPs("ppid", p.Pid, false)
v, err := strconv.Atoi(r[0][0])
if err != nil {
return 0, err
}
return int32(v), err
}
func (p *Process) Name() (string, error) {
k, err := p.getKProc()
if err != nil {
return "", err
}
return common.IntToString(k.Proc.P_comm[:]), nil
}
func (p *Process) Exe() (string, error) {
lsof_bin, err := exec.LookPath("lsof")
if err != nil {
return "", err
}
awk_bin, err := exec.LookPath("awk")
if err != nil {
return "", err
}
sed_bin, err := exec.LookPath("sed")
if err != nil {
return "", err
}
lsof := exec.Command(lsof_bin, "-p", strconv.Itoa(int(p.Pid)), "-Fn")
awk := exec.Command(awk_bin, "NR==3{print}")
sed := exec.Command(sed_bin, "s/n\\//\\//")
output, _, err := common.Pipeline(lsof, awk, sed)
if err != nil {
return "", err
}
ret := strings.TrimSpace(string(output))
return ret, nil
}
// 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) {
r, err := callPs("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) {
r, err := callPs("command", p.Pid, false)
if err != nil {
return nil, err
}
return r[0], err
}
func (p *Process) CreateTime() (int64, error) {
r, err := callPs("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 = 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 "", common.ErrNotImplementedError
}
func (p *Process) Parent() (*Process, error) {
rr, err := common.CallLsof(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) {
r, err := callPs("state", p.Pid, false)
if err != nil {
return "", err
}
return r[0][0], err
}
func (p *Process) Uids() ([]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) {
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 "", 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) {
k, err := p.getKProc()
if err != nil {
return 0, err
}
return int32(k.Proc.P_nice), nil
}
func (p *Process) IOnice() (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) Rlimit() ([]RlimitStat, error) {
var rlimit []RlimitStat
return rlimit, common.ErrNotImplementedError
}
func (p *Process) IOCounters() (*IOCountersStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) NumCtxSwitches() (*NumCtxSwitchesStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) NumFDs() (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) NumThreads() (int32, error) {
r, err := callPs("utime,stime", p.Pid, true)
if err != nil {
return 0, err
}
return int32(len(r)), nil
}
func (p *Process) Threads() (map[string]string, error) {
ret := make(map[string]string, 0)
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, ":")
hour, err := strconv.Atoi(_t[0])
if err != nil {
return ret, err
}
t += hour * 60 * 100
_tmp = _t[1]
} else {
_tmp = s
}
_t := strings.Split(_tmp, ".")
if err != nil {
return ret, err
}
h, err := strconv.Atoi(_t[0])
t += h * 100
h, err = strconv.Atoi(_t[1])
t += h
return float64(t) / ClockTicks, nil
}
func (p *Process) Times() (*cpu.TimesStat, error) {
r, err := callPs("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 nil, common.ErrNotImplementedError
}
func (p *Process) MemoryInfo() (*MemoryInfoStat, error) {
r, err := callPs("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 nil, common.ErrNotImplementedError
}
func (p *Process) Children() ([]*Process, error) {
pids, err := common.CallPgrep(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 nil, common.ErrNotImplementedError
}
func (p *Process) Connections() ([]net.ConnectionStat, error) {
return net.ConnectionsPid("all", p.Pid)
}
func (p *Process) NetIOCounters(pernic bool) ([]net.IOCountersStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) IsRunning() (bool, error) {
return true, common.ErrNotImplementedError
}
func (p *Process) MemoryMaps(grouped bool) (*[]MemoryMapsStat, error) {
var ret []MemoryMapsStat
return &ret, common.ErrNotImplementedError
}
func processes() ([]Process, error) {
results := make([]Process, 0, 50)
mib := []int32{CTLKern, KernProc, KernProcAll, 0}
buf, length, err := common.CallSyscall(mib)
if err != nil {
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
}