open-consul/vendor/github.com/shirou/gopsutil/v3/process/process_freebsd.go
Mike Morris 9ccb340893
chore: upgrade to gopsutil/v3 (#9118)
* deps: update golang.org/x/sys

* deps: update imports to gopsutil/v3

* chore: make update-vendor
2020-11-06 20:48:38 -05:00

339 lines
7.1 KiB
Go

// +build freebsd
package process
import (
"bytes"
"context"
"os/exec"
"path/filepath"
"strconv"
"strings"
cpu "github.com/shirou/gopsutil/v3/cpu"
"github.com/shirou/gopsutil/v3/internal/common"
net "github.com/shirou/gopsutil/v3/net"
"golang.org/x/sys/unix"
)
func pidsWithContext(ctx context.Context) ([]int32, error) {
var ret []int32
procs, err := ProcessesWithContext(ctx)
if err != nil {
return ret, nil
}
for _, p := range procs {
ret = append(ret, p.Pid)
}
return ret, nil
}
func (p *Process) PpidWithContext(ctx context.Context) (int32, error) {
k, err := p.getKProc()
if err != nil {
return 0, err
}
return k.Ppid, nil
}
func (p *Process) NameWithContext(ctx context.Context) (string, error) {
k, err := p.getKProc()
if err != nil {
return "", err
}
name := common.IntToString(k.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) ExeWithContext(ctx context.Context) (string, error) {
return "", common.ErrNotImplementedError
}
func (p *Process) CmdlineWithContext(ctx context.Context) (string, error) {
mib := []int32{CTLKern, KernProc, KernProcArgs, p.Pid}
buf, _, err := common.CallSyscall(mib)
if err != nil {
return "", err
}
ret := strings.FieldsFunc(string(buf), func(r rune) bool {
if r == '\u0000' {
return true
}
return false
})
return strings.Join(ret, " "), nil
}
func (p *Process) CmdlineSliceWithContext(ctx context.Context) ([]string, error) {
mib := []int32{CTLKern, KernProc, KernProcArgs, p.Pid}
buf, _, err := common.CallSyscall(mib)
if err != nil {
return nil, err
}
if len(buf) == 0 {
return nil, nil
}
if buf[len(buf)-1] == 0 {
buf = buf[:len(buf)-1]
}
parts := bytes.Split(buf, []byte{0})
var strParts []string
for _, p := range parts {
strParts = append(strParts, string(p))
}
return strParts, nil
}
func (p *Process) createTimeWithContext(ctx context.Context) (int64, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) ParentWithContext(ctx context.Context) (*Process, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) StatusWithContext(ctx context.Context) ([]string, error) {
k, err := p.getKProc()
if err != nil {
return []string{""}, err
}
var s string
switch k.Stat {
case SIDL:
s = Idle
case SRUN:
s = Running
case SSLEEP:
s = Sleep
case SSTOP:
s = Stop
case SZOMB:
s = Zombie
case SWAIT:
s = Wait
case SLOCK:
s = Lock
}
return []string{s}, nil
}
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) UidsWithContext(ctx context.Context) ([]int32, error) {
k, err := p.getKProc()
if err != nil {
return nil, err
}
uids := make([]int32, 0, 3)
uids = append(uids, int32(k.Ruid), int32(k.Uid), int32(k.Svuid))
return uids, nil
}
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.Rgid), int32(k.Ngroups), int32(k.Svgid))
return gids, nil
}
func (p *Process) GroupsWithContext(ctx context.Context) ([]int32, error) {
k, err := p.getKProc()
if err != nil {
return nil, err
}
groups := make([]int32, k.Ngroups)
for i := int16(0); i < k.Ngroups; i++ {
groups[i] = int32(k.Groups[i])
}
return groups, nil
}
func (p *Process) TerminalWithContext(ctx context.Context) (string, error) {
k, err := p.getKProc()
if err != nil {
return "", err
}
ttyNr := uint64(k.Tdev)
termmap, err := getTerminalMap()
if err != nil {
return "", err
}
return termmap[ttyNr], nil
}
func (p *Process) NiceWithContext(ctx context.Context) (int32, error) {
k, err := p.getKProc()
if err != nil {
return 0, err
}
return int32(k.Nice), nil
}
func (p *Process) IOCountersWithContext(ctx context.Context) (*IOCountersStat, error) {
k, err := p.getKProc()
if err != nil {
return nil, err
}
return &IOCountersStat{
ReadCount: uint64(k.Rusage.Inblock),
WriteCount: uint64(k.Rusage.Oublock),
}, nil
}
func (p *Process) NumThreadsWithContext(ctx context.Context) (int32, error) {
k, err := p.getKProc()
if err != nil {
return 0, err
}
return k.Numthreads, nil
}
func (p *Process) TimesWithContext(ctx context.Context) (*cpu.TimesStat, error) {
k, err := p.getKProc()
if err != nil {
return nil, err
}
return &cpu.TimesStat{
CPU: "cpu",
User: float64(k.Rusage.Utime.Sec) + float64(k.Rusage.Utime.Usec)/1000000,
System: float64(k.Rusage.Stime.Sec) + float64(k.Rusage.Stime.Usec)/1000000,
}, nil
}
func (p *Process) MemoryInfoWithContext(ctx context.Context) (*MemoryInfoStat, error) {
k, err := p.getKProc()
if err != nil {
return nil, err
}
v, err := unix.Sysctl("vm.stats.vm.v_page_size")
if err != nil {
return nil, err
}
pageSize := common.LittleEndian.Uint16([]byte(v))
return &MemoryInfoStat{
RSS: uint64(k.Rssize) * uint64(pageSize),
VMS: uint64(k.Size),
}, nil
}
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 := NewProcessWithContext(ctx, pid)
if err != nil {
return nil, err
}
ret = append(ret, np)
}
return ret, nil
}
func (p *Process) ConnectionsWithContext(ctx context.Context) ([]net.ConnectionStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) ConnectionsMaxWithContext(ctx context.Context, max int) ([]net.ConnectionStat, error) {
return nil, common.ErrNotImplementedError
}
func ProcessesWithContext(ctx context.Context) ([]*Process, error) {
results := []*Process{}
mib := []int32{CTLKern, KernProc, KernProcProc, 0}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return results, err
}
// get kinfo_proc size
count := int(length / uint64(sizeOfKinfoProc))
// parse buf to procs
for i := 0; i < count; i++ {
b := buf[i*sizeOfKinfoProc : (i+1)*sizeOfKinfoProc]
k, err := parseKinfoProc(b)
if err != nil {
continue
}
p, err := NewProcessWithContext(ctx, int32(k.Pid))
if err != nil {
continue
}
results = append(results, p)
}
return results, nil
}
func (p *Process) getKProc() (*KinfoProc, error) {
mib := []int32{CTLKern, KernProc, KernProcPID, p.Pid}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return nil, err
}
if length != sizeOfKinfoProc {
return nil, err
}
k, err := parseKinfoProc(buf)
if err != nil {
return nil, err
}
return &k, nil
}