open-nomad/vendor/github.com/shirou/gopsutil/host/host_windows.go
2016-02-12 10:02:16 -08:00

136 lines
2.3 KiB
Go

// +build windows
package host
import (
"fmt"
"os"
"runtime"
"strings"
"time"
"github.com/StackExchange/wmi"
"github.com/shirou/gopsutil/internal/common"
process "github.com/shirou/gopsutil/process"
)
var (
procGetSystemTimeAsFileTime = common.Modkernel32.NewProc("GetSystemTimeAsFileTime")
osInfo *Win32_OperatingSystem
)
type Win32_OperatingSystem struct {
Version string
Caption string
ProductType uint32
BuildNumber string
LastBootUpTime time.Time
}
func HostInfo() (*HostInfoStat, error) {
ret := &HostInfoStat{
OS: runtime.GOOS,
}
hostname, err := os.Hostname()
if err == nil {
ret.Hostname = hostname
}
platform, family, version, err := GetPlatformInformation()
if err == nil {
ret.Platform = platform
ret.PlatformFamily = family
ret.PlatformVersion = version
} else {
return ret, err
}
boot, err := BootTime()
if err == nil {
ret.BootTime = boot
ret.Uptime = uptime(boot)
}
procs, err := process.Pids()
if err != nil {
return ret, err
}
ret.Procs = uint64(len(procs))
return ret, nil
}
func GetOSInfo() (Win32_OperatingSystem, error) {
var dst []Win32_OperatingSystem
q := wmi.CreateQuery(&dst, "")
err := wmi.Query(q, &dst)
if err != nil {
return Win32_OperatingSystem{}, err
}
osInfo = &dst[0]
return dst[0], nil
}
func BootTime() (uint64, error) {
if osInfo == nil {
_, err := GetOSInfo()
if err != nil {
return 0, err
}
}
now := time.Now()
t := osInfo.LastBootUpTime.Local()
return uint64(now.Sub(t).Seconds()), 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 GetPlatformInformation() (platform string, family string, version string, err error) {
if osInfo == nil {
_, err = GetOSInfo()
if err != nil {
return
}
}
// Platform
platform = strings.Trim(osInfo.Caption, " ")
// PlatformFamily
switch osInfo.ProductType {
case 1:
family = "Standalone Workstation"
case 2:
family = "Server (Domain Controller)"
case 3:
family = "Server"
}
// Platform Version
version = fmt.Sprintf("%s Build %s", osInfo.Version, osInfo.BuildNumber)
return
}
func Users() ([]UserStat, error) {
var ret []UserStat
return ret, nil
}