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optimize device opening / closing

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This commit is contained in:
rare-magma 2022-06-18 18:55:38 +02:00
parent 387c463eee
commit e96355d0b8
1 changed files with 44 additions and 21 deletions
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65
devices/temp_nix.go
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@ -8,13 +8,46 @@ import (
"github.com/anatol/smart.go"
"github.com/jaypipes/ghw"
"github.com/jaypipes/ghw/pkg/block"
"github.com/shirou/gopsutil/host"
)
var disks []block.Disk
var smDevices []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 {
block, err := ghw.Block()
if err != nil {
log.Print("error getting block device info")
return err
}
for _, disk := range block.Disks {
dev, err := smart.Open("/dev/" + disk.Name)
if err == nil {
disks = append(disks, *disk)
smDevices = append(smDevices, dev)
}
}
return err
}
func endBlock() error {
for _, dev := range smDevices {
err := dev.Close()
if err != nil {
log.Print("error closing device")
return err
}
}
return nil
}
func getTemps(temps map[string]int) map[string]error {
@ -33,41 +66,31 @@ func getTemps(temps map[string]int) map[string]error {
}
}
block, err := ghw.Block()
if err != nil {
log.Print("error getting block device info")
return nil
}
for _, disk := range block.Disks {
dev, err := smart.Open("/dev/" + disk.Name)
if err != nil {
continue
}
defer dev.Close()
for i, dev := range smDevices {
switch sm := dev.(type) {
case *smart.SataDevice:
data, err := sm.ReadSMARTData()
if err != nil {
log.Print("error getting smart data for " + disk.Name + "_" + disk.Model)
return nil
log.Print("error getting smart data for " + disks[i].Name + "_" + disks[i].Model)
log.Print(err)
break
}
if attr, ok := data.Attrs[194]; ok {
val, _, _, _, err := attr.ParseAsTemperature()
if err != nil {
log.Print("error parsing temperature smart data for " + disk.Name + "_" + disk.Model)
return nil
log.Print("error parsing temperature smart data for " + disks[i].Name + "_" + disks[i].Model)
log.Print(err)
break
}
temps[disk.Name+"_"+disk.Model] = int(val)
temps[disks[i].Name+"_"+disks[i].Model] = int(val)
}
case *smart.NVMeDevice:
data, err := sm.ReadSMART()
if err != nil {
log.Print("error getting smart data for " + disk.Name + "_" + disk.Model)
return nil
log.Print("error getting smart data for " + disks[i].Name + "_" + disks[i].Model)
break
}
temps[disk.Name+"_"+disk.Model] = int(data.Temperature)
temps[disks[i].Name+"_"+disks[i].Model] = int(data.Temperature)
default:
}
}