func BootTime() (uint64, error) {
sysinfo := &syscall.Sysinfo_t{}
if err := syscall.Sysinfo(sysinfo); err != nil {
return 0, err
}
return uint64(sysinfo.Uptime), nil
}
func runningStatus(w http.ResponseWriter) (res jsonObject) {
sys := &syscall.Sysinfo_t{}
_ = syscall.Sysinfo(sys)
log := []statusEntry{}
status.LogBuf.Do(func(v interface{}) {
if v != nil {
log = append(log, v.(statusEntry))
}
})
res = jsonObject{
"status": "OK",
"response": map[string]interface{}{
"uptime": sys.Uptime,
"load_1": sys.Loads[0],
"load_5": sys.Loads[1],
"load_15": sys.Loads[2],
"freeram": sys.Freeram,
"log": log,
"notification": status.Notifications(),
},
}
return
}
func procUsage(pcpu *float64, rss, vss *int64) error {
contents, err := ioutil.ReadFile(procStatFile)
if err != nil {
return err
}
fields := bytes.Fields(contents)
*rss = (parseInt64(fields[rssPos])) << 12
*vss = parseInt64(fields[vssPos])
startTime := parseInt64(fields[startPos])
utime := parseInt64(fields[utimePos])
stime := parseInt64(fields[stimePos])
totalTime := utime + stime
var sysinfo syscall.Sysinfo_t
if err := syscall.Sysinfo(&sysinfo); err != nil {
return err
}
seconds := int64(sysinfo.Uptime) - (startTime / ticks)
if seconds > 0 {
ipcpu := (totalTime * 1000 / ticks) / seconds
*pcpu = float64(ipcpu) / 10.0
}
return nil
}
func main() {
log.SetFlags(0)
log.SetPrefix("uptime: ")
flag.Parse()
var info syscall.Sysinfo_t
var err error
syscall.Sysinfo(&info)
ck(err)
now := time.Now().Format("15:04:05")
fmt.Printf(" %s up ", now)
info.Uptime /= 60
min := info.Uptime % 60
info.Uptime /= 60
hours := info.Uptime % 24
days := info.Uptime / 24
if days != 0 {
fmt.Printf("%d day", days)
if days != 1 {
fmt.Printf("s")
}
fmt.Printf(", ")
}
if hours != 0 {
fmt.Printf("%2d:%02d, ", hours, min)
} else {
fmt.Printf("%d min,", min)
}
fmt.Printf(" load average: %.02f, %.02f, %.02f\n",
float64(info.Loads[0])/65536, float64(info.Loads[1])/65536, float64(info.Loads[2])/65536)
}
func main() {
client := http.Client{}
for {
si := syscall.Sysinfo_t{}
syscall.Sysinfo(&si)
l := strconv.FormatFloat(float64(si.Loads[0])/65536, 'f', 2)
fmt.Println(l, si.Loads[0]/65536.0, si.Loads[0])
time.Sleep(1 * time.Second)
continue
resp, err := client.PostForm("https://api.stathat.com/ez", url.Values{
"stat": {"loadavg"},
"ezkey": {"YLJRun7adtSFKR2u"},
"value": {l},
})
if err != nil {
// Problems...
fmt.Println("Error sending stat... : %v", err)
os.Exit(1)
}
fmt.Println(resp)
resp.Body.Close()
time.Sleep(1 * time.Second)
}
}
// Uptime returns the number of seconds since the system has booted
func Uptime() (int64, error) {
info := &syscall.Sysinfo_t{}
err := syscall.Sysinfo(info)
if err != nil {
return 0, err
}
return int64(info.Uptime), nil
}
func update_sysinfo() {
sysinfo_mutex.Lock()
defer sysinfo_mutex.Unlock()
err := syscall.Sysinfo(sysinfo)
if err != nil {
log.Panic("syscall.Sysinfo failed: ", err)
}
}
// Returns available physical memory
func PhysmemAvail() uint64 {
info := syscall.Sysinfo_t{}
err := syscall.Sysinfo(&info)
if err != nil {
return 0
}
return info.Freeram
}
func uptime() (int64, error) {
sysinfo := syscall.Sysinfo_t{}
if err := syscall.Sysinfo(&sysinfo); err != nil {
return 0.0, err
} else {
return sysinfo.Uptime, nil
}
}
func Load() int64 {
info := &syscall.Sysinfo_t{}
err := syscall.Sysinfo(info)
if err != nil {
fmt.Printf("%s\n", err)
}
return info.Uptime
}
func (mem *MemStatus) fillInStatus() {
//system memory usage
sysInfo := new(syscall.Sysinfo_t)
err := syscall.Sysinfo(sysInfo)
if err == nil {
mem.All = uint64(sysInfo.Totalram)
mem.Free = uint64(sysInfo.Freeram)
mem.Used = mem.All - mem.Free
}
}
// Get sysinfo
func GetSysinfo() (sysinfo *syscall.Sysinfo_t, err error) {
sysinfo = new(syscall.Sysinfo_t)
err = syscall.Sysinfo(sysinfo)
if err != nil {
ALARM_MANAGER.Add(ALARM_SYSCALL, err, "Sysinfo failed")
logger.Debug("Failed in syscall sysinfo, error: %s", err.Error())
return
}
return sysinfo, nil
}
func GetSystemInfo(cResp chan<- *Response, rawArgs *json.RawMessage, tag string) {
st := &syscall.Sysinfo_t{}
if err := syscall.Sysinfo(st); err != nil {
cResp <- &Response{nil, tag, err}
return
}
sinfo := &SysInfo{}
sinfo.Uptime = time.Duration(st.Uptime)
// float64(1<<SI_LOAD_SHIFT) == 65536.0
scale := 65536.0
sinfo.Loadavg.One = float64(st.Loads[0]) / scale
sinfo.Loadavg.Five = float64(st.Loads[1]) / scale
sinfo.Loadavg.Fifteen = float64(st.Loads[2]) / scale
unit := uint64(st.Unit) * 1024 // kB
sinfo.Ram.Total = uint64(st.Totalram) / unit
sinfo.Ram.Free = uint64(st.Freeram) / unit
sinfo.Ram.Buffer = uint64(st.Bufferram) / unit
sinfo.Swap.Total = uint64(st.Totalswap) / unit
sinfo.Swap.Free = uint64(st.Freeswap) / unit
sinfo.LongBit = getLongBit()
switch u, err := getUname(); {
case err == nil:
sinfo.Uname = u
default:
cResp <- &Response{nil, tag, err}
return
}
switch u, err := getLoggedUsers(); {
case err == nil:
sinfo.Users = u
default:
cResp <- &Response{nil, tag, err}
return
}
switch d, err := getDisksInfo(); {
case err == nil:
sinfo.Disks = d
default:
cResp <- &Response{nil, tag, err}
return
}
cResp <- &Response{sinfo, tag, nil}
}
func (self *Uptime) Get() error {
sysinfo := syscall.Sysinfo_t{}
if err := syscall.Sysinfo(&sysinfo); err != nil {
return err
}
self.Length = float64(sysinfo.Uptime)
return nil
}
func GetSwap() (*Swap, error) {
swap := &Swap{}
sysinfo := syscall.Sysinfo_t{}
if err := syscall.Sysinfo(&sysinfo); err != nil {
return swap, err
}
swap.Total = uint64(sysinfo.Totalswap)
swap.Free = uint64(sysinfo.Freeswap)
swap.Used = swap.Total - swap.Free
return swap, nil
}
func (s *Uptime) Collect(c chan *Delta) {
for {
info := syscall.Sysinfo_t{}
err := syscall.Sysinfo(&info)
if err != nil {
c <- NewDelta("uptime", err)
continue
}
c <- NewDelta("uptime", time.Duration(info.Uptime)*time.Second)
time.Sleep(2 * time.Second)
}
}
func (s *Freeram) Collect(c chan *Delta) {
for {
info := syscall.Sysinfo_t{}
err := syscall.Sysinfo(&info)
if err != nil {
c <- NewDelta("freeram", err)
continue
}
c <- NewDelta("freeram", uint(info.Freeram))
time.Sleep(2 * time.Second)
}
}
func (swap *Swap) Get() error {
sysinfo := syscall.Sysinfo_t{}
if err := syscall.Sysinfo(&sysinfo); err != nil {
return err
}
swap.TotalSwap = uint64(sysinfo.Totalswap)
swap.FreeSwap = uint64(sysinfo.Freeswap)
swap.UsedSwap = swap.TotalSwap - swap.FreeSwap
return nil
}
func (self *Swap) Get() error {
sysinfo := syscall.Sysinfo_t{}
if err := syscall.Sysinfo(&sysinfo); err != nil {
return err
}
self.Total = uint64(sysinfo.Totalswap)
self.Free = uint64(sysinfo.Freeswap)
self.Used = self.Total - self.Free
return nil
}
func (load *Load) Get() error {
sysinfo := syscall.Sysinfo_t{}
if err := syscall.Sysinfo(&sysinfo); err != nil {
return err
}
load.One = float64(sysinfo.Loads[0]) / (1 << SI_LOAD_SHIFT)
load.Five = float64(sysinfo.Loads[1]) / (1 << SI_LOAD_SHIFT)
load.Fifteen = float64(sysinfo.Loads[2]) / (1 << SI_LOAD_SHIFT)
return nil
}
func (mem *Mem) Get() error {
sysinfo := syscall.Sysinfo_t{}
if err := syscall.Sysinfo(&sysinfo); err != nil {
return err
}
mem.TotalRam = uint64(sysinfo.Totalram)
mem.FreeRam = uint64(sysinfo.Freeram)
mem.SharedRam = uint64(sysinfo.Sharedram)
mem.BufferRam = uint64(sysinfo.Bufferram)
return nil
}
func SwapMemory() (*SwapMemoryStat, error) {
sysinfo := &syscall.Sysinfo_t{}
if err := syscall.Sysinfo(sysinfo); err != nil {
return nil, err
}
ret := &SwapMemoryStat{
Total: uint64(sysinfo.Totalswap),
Free: uint64(sysinfo.Freeswap),
}
ret.Used = ret.Total - ret.Free
ret.UsedPercent = float64(ret.Total-ret.Free) / float64(ret.Total) * 100.0
return ret, nil
}
func (uptime *Uptime) Get() error {
sysinfo := syscall.Sysinfo_t{}
if err := syscall.Sysinfo(&sysinfo); err != nil {
return err
}
uptime.Uptime = uint64(sysinfo.Uptime)
/*
days := sysinfo.Uptime / 86400
hours := (sysinfo.Uptime / 3600) - (days * 24)
mins := (sysinfo.Uptime / 60) - (days * 1440) - (hours * 60)
*/
return nil
}
func SysinfoGet() Sysinfo {
var si syscall.Sysinfo_t
syscall.Sysinfo(&si)
return Sysinfo{
CpuNum: runtime.NumCPU(),
Uptime: si.Uptime,
Loads: si.Loads,
MemTotal: si.Totalram / 1024,
MemFree: si.Freeram / 1024,
MemShared: si.Sharedram / 1024,
MemBuffer: si.Bufferram / 1024,
SwapTotal: si.Totalswap / 1024,
SwapFree: si.Freeswap / 1024,
Procs: si.Procs,
TimeNow: time.Now().Format(time.RFC3339),
}
}
func uptime() string {
var sysinfo syscall.Sysinfo_t
errno := syscall.Sysinfo(&sysinfo)
if errno == nil {
seconds := sysinfo.Uptime
minutes := seconds / 60
seconds -= minutes * 60
hours := minutes / 60
minutes -= hours * 60
days := hours / 24
hours -= days * 24
return fmt.Sprintf("%v days %v:%02v:%02v", days, hours, minutes, seconds)
}
return "unknown"
}
func SwapMemory() (*SwapMemoryStat, error) {
sysinfo := &syscall.Sysinfo_t{}
if err := syscall.Sysinfo(sysinfo); err != nil {
return nil, err
}
ret := &SwapMemoryStat{
Total: uint64(sysinfo.Totalswap) * uint64(sysinfo.Unit),
Free: uint64(sysinfo.Freeswap) * uint64(sysinfo.Unit),
}
ret.Used = ret.Total - ret.Free
//check Infinity
if ret.Total != 0 {
ret.UsedPercent = float64(ret.Total-ret.Free) / float64(ret.Total) * 100.0
} else {
ret.UsedPercent = 0
}
filename := common.HostProc("vmstat")
lines, _ := common.ReadLines(filename)
for _, l := range lines {
fields := strings.Fields(l)
if len(fields) < 2 {
continue
}
switch fields[0] {
case "pswpin":
value, err := strconv.ParseUint(fields[1], 10, 64)
if err != nil {
continue
}
ret.Sin = value * 4 * 1024
case "pswpout":
value, err := strconv.ParseUint(fields[1], 10, 64)
if err != nil {
continue
}
ret.Sout = value * 4 * 1024
}
}
return ret, nil
}
func MemStat() MemStatus {
// self mem stat
memStat := new(runtime.MemStats)
runtime.ReadMemStats(memStat)
mem := MemStatus{}
mem.Self = memStat.Alloc
// system mem stat
sysInfo := new(syscall.Sysinfo_t)
err := syscall.Sysinfo(sysInfo)
if err == nil {
mem.All = uint64(sysInfo.Totalram)
mem.Free = uint64(sysInfo.Freeram)
mem.Used = mem.All - mem.Free
}
fmt.Println("",
"Self Alloc:", mem.Self, bytefmt.ByteSize(mem.Self), "\n",
"All:", mem.All, bytefmt.ByteSize(mem.All), "\n",
"Used:", mem.Used, bytefmt.ByteSize(mem.Used), "\n",
"Free:", mem.Free, bytefmt.ByteSize(mem.Free),
)
return mem
}
// Sampling function to keep pcpu relevant.
func periodic() {
contents, err := ioutil.ReadFile(procStatFile)
if err != nil {
return
}
fields := bytes.Fields(contents)
// PCPU
pstart := parseInt64(fields[startPos])
utime := parseInt64(fields[utimePos])
stime := parseInt64(fields[stimePos])
total := utime + stime
var sysinfo syscall.Sysinfo_t
if err := syscall.Sysinfo(&sysinfo); err != nil {
return
}
seconds := int64(sysinfo.Uptime) - (pstart / ticks)
// Save off temps
lt := lastTotal
ls := lastSeconds
// Update last sample
lastTotal = total
lastSeconds = seconds
// Adjust to current time window
total -= lt
seconds -= ls
if seconds > 0 {
atomic.StoreInt64(&ipcpu, (total*1000/ticks)/seconds)
}
time.AfterFunc(1*time.Second, periodic)
}
func Info() (*sysinfo, error) {
rawsysinfo := &syscall.Sysinfo_t{}
if err := syscall.Sysinfo(rawsysinfo); err != nil {
return nil, err
}
defer lock.Unlock()
lock.Lock()
unit := uint64(rawsysinfo.Unit) * 1024 // kB
singelton.Uptime = time.Duration(rawsysinfo.Uptime) * time.Second
singelton.Loads[0] = float64(rawsysinfo.Loads[0]) / scale
singelton.Loads[1] = float64(rawsysinfo.Loads[1]) / scale
singelton.Loads[2] = float64(rawsysinfo.Loads[2]) / scale
singelton.Procs = uint64(rawsysinfo.Procs)
singelton.TotalRam = uint64(rawsysinfo.Totalram) / unit
singelton.FreeRam = uint64(rawsysinfo.Freeram) / unit
singelton.BufferRam = uint64(rawsysinfo.Bufferram) / unit
singelton.TotalSwap = uint64(rawsysinfo.Totalswap) / unit
singelton.FreeSwap = uint64(rawsysinfo.Freeswap) / unit
singelton.TotalHighRam = uint64(rawsysinfo.Totalhigh) / unit
singelton.FreeHighRam = uint64(rawsysinfo.Freehigh) / unit
return singelton, nil
}
func main() {
flag.Var(unitFlag('b'), "b", "display in bytes")
flag.Var(unitFlag('k'), "k", "display in kibibytes")
flag.Var(unitFlag('m'), "m", "display in megabytes")
flag.Var(unitFlag('g'), "g", "display in gigabytes")
flag.Usage = usage
flag.Parse()
var info syscall.Sysinfo_t
err := syscall.Sysinfo(&info)
ck(err)
unit = uint64(info.Unit)
if unit == 0 {
unit = 1
}
fmt.Printf(" %13s%13s%13s%13s%13s\n",
"total", "used", "free", "shared", "buffers")
fmt.Printf("Mem: ")
fmt.Printf("%13d%13d%13d%13d%13d\n",
scale(info.Totalram),
scale(info.Totalram-info.Freeram),
scale(info.Freeram),
scale(info.Sharedram),
scale(info.Bufferram))
fmt.Printf("-/+ buffers/cache:")
fmt.Printf("%13d%13d\n",
scale(info.Totalram-info.Freeram-info.Bufferram),
scale(info.Freeram+info.Bufferram))
fmt.Printf("Swap:")
fmt.Printf("%13d%13d%13d\n",
scale(info.Totalswap),
scale(info.Totalswap-info.Freeswap),
scale(info.Freeswap))
}