telegraf/plugins/system/ps/process/process_freebsd.go

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// +build freebsd
package process
import (
"bytes"
"encoding/binary"
"unsafe"
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common "github.com/influxdb/tivan/plugins/system/ps/common"
cpu "github.com/influxdb/tivan/plugins/system/ps/cpu"
net "github.com/influxdb/tivan/plugins/system/ps/net"
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)
// MemoryInfoExStat is different between OSes
type MemoryInfoExStat struct {
}
type MemoryMapsStat struct {
}
func Pids() ([]int32, error) {
var ret []int32
procs, err := processes()
if err != nil {
return ret, nil
}
for _, p := range procs {
ret = append(ret, p.Pid)
}
return ret, nil
}
func (p *Process) Ppid() (int32, error) {
k, err := p.getKProc()
if err != nil {
return 0, err
}
return k.KiPpid, nil
}
func (p *Process) Name() (string, error) {
k, err := p.getKProc()
if err != nil {
return "", err
}
return string(k.KiComm[:]), nil
}
func (p *Process) Exe() (string, error) {
return "", common.NotImplementedError
}
func (p *Process) Cmdline() (string, error) {
return "", common.NotImplementedError
}
func (p *Process) CreateTime() (int64, error) {
return 0, common.NotImplementedError
}
func (p *Process) Cwd() (string, error) {
return "", common.NotImplementedError
}
func (p *Process) Parent() (*Process, error) {
return p, common.NotImplementedError
}
func (p *Process) Status() (string, error) {
k, err := p.getKProc()
if err != nil {
return "", err
}
return string(k.KiStat[:]), nil
}
func (p *Process) Uids() ([]int32, error) {
k, err := p.getKProc()
if err != nil {
return nil, err
}
uids := make([]int32, 0, 3)
uids = append(uids, int32(k.KiRuid), int32(k.KiUID), int32(k.KiSvuid))
return uids, 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.KiRgid), int32(k.KiNgroups[0]), int32(k.KiSvuid))
return gids, nil
}
func (p *Process) Terminal() (string, error) {
k, err := p.getKProc()
if err != nil {
return "", err
}
ttyNr := uint64(k.KiTdev)
termmap, err := getTerminalMap()
if err != nil {
return "", err
}
return termmap[ttyNr], nil
}
func (p *Process) Nice() (int32, error) {
return 0, common.NotImplementedError
}
func (p *Process) IOnice() (int32, error) {
return 0, common.NotImplementedError
}
func (p *Process) Rlimit() ([]RlimitStat, error) {
var rlimit []RlimitStat
return rlimit, common.NotImplementedError
}
func (p *Process) IOCounters() (*IOCountersStat, error) {
return nil, common.NotImplementedError
}
func (p *Process) NumCtxSwitches() (*NumCtxSwitchesStat, error) {
return nil, common.NotImplementedError
}
func (p *Process) NumFDs() (int32, error) {
return 0, common.NotImplementedError
}
func (p *Process) NumThreads() (int32, error) {
k, err := p.getKProc()
if err != nil {
return 0, err
}
return k.KiNumthreads, nil
}
func (p *Process) Threads() (map[string]string, error) {
ret := make(map[string]string, 0)
return ret, common.NotImplementedError
}
func (p *Process) CPUTimes() (*cpu.CPUTimesStat, error) {
return nil, common.NotImplementedError
}
func (p *Process) CPUAffinity() ([]int32, error) {
return nil, common.NotImplementedError
}
func (p *Process) MemoryInfo() (*MemoryInfoStat, error) {
k, err := p.getKProc()
if err != nil {
return nil, err
}
ret := &MemoryInfoStat{
RSS: uint64(k.KiRssize),
VMS: uint64(k.KiSize),
}
return ret, nil
}
func (p *Process) MemoryInfoEx() (*MemoryInfoExStat, error) {
return nil, common.NotImplementedError
}
func (p *Process) MemoryPercent() (float32, error) {
return 0, common.NotImplementedError
}
func (p *Process) Children() ([]*Process, error) {
return nil, common.NotImplementedError
}
func (p *Process) OpenFiles() ([]OpenFilesStat, error) {
return nil, common.NotImplementedError
}
func (p *Process) Connections() ([]net.NetConnectionStat, error) {
return nil, common.NotImplementedError
}
func (p *Process) IsRunning() (bool, error) {
return true, common.NotImplementedError
}
func (p *Process) MemoryMaps(grouped bool) (*[]MemoryMapsStat, error) {
var ret []MemoryMapsStat
return &ret, common.NotImplementedError
}
func copyParams(k *KinfoProc, p *Process) error {
return nil
}
func processes() ([]Process, error) {
results := make([]Process, 0, 50)
mib := []int32{CTLKern, KernProc, KernProcProc, 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))
// 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.KiPid))
if err != nil {
continue
}
copyParams(&k, p)
results = append(results, *p)
}
return results, nil
}
func parseKinfoProc(buf []byte) (KinfoProc, error) {
var k KinfoProc
br := bytes.NewReader(buf)
err := binary.Read(br, binary.LittleEndian, &k)
if err != nil {
return k, err
}
return k, 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
}
procK := KinfoProc{}
if length != uint64(unsafe.Sizeof(procK)) {
return nil, err
}
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
}