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|
//go:build linux || darwin
// +build linux darwin
package devices
import (
"log"
"github.com/anatol/smart.go"
"github.com/jaypipes/ghw"
"github.com/shirou/gopsutil/host"
)
// offset for converting temperature from Kelvins to Celsius (273.15)
const kelvinOffset = 273
var smDevices map[string]smart.Device
func init() {
devs() // Populate the sensorMap
RegisterStartup(startBlock)
RegisterTemp(getTemps)
RegisterDeviceList(Temperatures, devs, defs)
RegisterShutdown(endBlock)
}
func startBlock(vars map[string]string) error {
smDevices = make(map[string]smart.Device)
block, err := ghw.Block()
if err != nil {
log.Printf("error getting block device info: %s", err)
return err
}
for _, disk := range block.Disks {
dev, err := smart.Open("/dev/" + disk.Name)
if err != nil {
log.Printf("error opening smart info for %s: %s", disk.Name, err)
continue
}
smDevices[disk.Name+"_"+disk.Model] = dev
}
return nil
}
func endBlock() error {
for name, dev := range smDevices {
err := dev.Close()
if err != nil {
log.Printf("error closing device %s: %s", name, err)
}
}
return nil
}
func getTemps(temps map[string]int) map[string]error {
sensors, err := host.SensorsTemperatures()
if err != nil {
if _, ok := err.(*host.Warnings); ok {
// ignore warnings
} else {
return map[string]error{"gopsutil host": err}
}
}
for _, sensor := range sensors {
label := sensorMap[sensor.SensorKey]
if _, ok := temps[label]; ok {
temps[label] = int(sensor.Temperature)
}
}
for name, dev := range smDevices {
switch sm := dev.(type) {
case *smart.SataDevice:
data, err := sm.ReadSMARTData()
if err != nil {
log.Printf("error getting smart data for %s: %s", name, err)
continue
}
if attr, ok := data.Attrs[194]; ok {
val, _, _, _, err := attr.ParseAsTemperature()
if err != nil {
log.Printf("error parsing temperature smart data for %s: %s", name, err)
continue
}
temps[name] = val
}
case *smart.NVMeDevice:
data, err := sm.ReadSMART()
if err != nil {
log.Printf("error getting smart data for %s: %s", name, err)
continue
}
// nvme reports the temperature in Kelvins
temps[name] = int(data.Temperature) - kelvinOffset
default:
}
}
return nil
}
// Optimization to avoid string manipulation every update
var sensorMap map[string]string
|
