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/
raspik.go
108 lines (84 loc) · 1.92 KB
/
raspik.go
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package raspik
import (
"syscall"
)
const (
SI_LOAD_SHIFT = 16
)
type Getter interface {
Get() error
}
type Load struct {
// 1 minute load averages
One float64
// 5 minute load averages
Five float64
// 15 minute load averages
Fifteen float64
}
type Uptime struct {
// Seconds since boot
Uptime uint64
}
type Mem struct {
// Total usable main memory size
TotalRam uint64
// Available memory size
FreeRam uint64
// Amount of shared memory
SharedRam uint64
// Memory used by buffers
BufferRam uint64
}
type Swap struct {
// Total swap space size
TotalSwap uint64
// Used swap space
UsedSwap uint64
// Swap space still available
FreeSwap uint64
}
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 (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 (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 (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
}