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// +build darwin
package host
import (
"bytes"
"encoding/binary"
"io/ioutil"
"os"
"os/exec"
"runtime"
"strconv"
"strings"
"time"
"unsafe"
"github.com/shirou/gopsutil/internal/common"
)
// from utmpx.h
const USER_PROCESS = 7
func Info() (*InfoStat, error) {
ret := &InfoStat{
OS: runtime.GOOS,
PlatformFamily: "darwin",
}
hostname, err := os.Hostname()
if err == nil {
ret.Hostname = hostname
}
platform, family, version, err := PlatformInformation()
if err == nil {
ret.Platform = platform
ret.PlatformFamily = family
ret.PlatformVersion = version
}
system, role, err := Virtualization()
if err == nil {
ret.VirtualizationSystem = system
ret.VirtualizationRole = role
}
boot, err := BootTime()
if err == nil {
ret.BootTime = boot
ret.Uptime = uptime(boot)
}
return ret, nil
}
func BootTime() (uint64, error) {
values, err := common.DoSysctrl("kern.boottime")
if err != nil {
return 0, err
}
// ex: { sec = 1392261637, usec = 627534 } Thu Feb 13 12:20:37 2014
v := strings.Replace(values[2], ",", "", 1)
boottime, err := strconv.ParseInt(v, 10, 64)
if err != nil {
return 0, err
}
return uint64(boottime), nil
}
func uptime(boot uint64) uint64 {
return uint64(time.Now().Unix()) - boot
}
func Uptime() (uint64, error) {
boot, err := BootTime()
if err != nil {
return 0, err
}
return uptime(boot), nil
}
func Users() ([]UserStat, error) {
utmpfile := "/var/run/utmpx"
var ret []UserStat
file, err := os.Open(utmpfile)
if err != nil {
return ret, err
}
buf, err := ioutil.ReadAll(file)
if err != nil {
return ret, err
}
u := Utmpx{}
entrySize := int(unsafe.Sizeof(u))
count := len(buf) / entrySize
for i := 0; i < count; i++ {
b := buf[i*entrySize : i*entrySize+entrySize]
var u Utmpx
br := bytes.NewReader(b)
err := binary.Read(br, binary.LittleEndian, &u)
if err != nil {
continue
}
if u.Type != USER_PROCESS {
continue
}
user := UserStat{
User: common.IntToString(u.User[:]),
Terminal: common.IntToString(u.Line[:]),
Host: common.IntToString(u.Host[:]),
Started: int(u.Tv.Sec),
}
ret = append(ret, user)
}
return ret, nil
}
func PlatformInformation() (string, string, string, error) {
platform := ""
family := ""
version := ""
uname, err := exec.LookPath("uname")
if err != nil {
return "", "", "", err
}
out, err := invoke.Command(uname, "-s")
if err == nil {
platform = strings.ToLower(strings.TrimSpace(string(out)))
}
out, err = invoke.Command(uname, "-r")
if err == nil {
version = strings.ToLower(strings.TrimSpace(string(out)))
}
return platform, family, version, nil
}
func Virtualization() (string, string, error) {
system := ""
role := ""
return system, role, nil
}
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