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// SPDX-License-Identifier: BSD-3-Clause
//go:build windows
package sensors
import (
"context"
"math"
"github.com/yusufpapurcu/wmi"
"github.com/shirou/gopsutil/v4/internal/common"
)
type msAcpi_ThermalZoneTemperature struct {
Active bool
CriticalTripPoint uint32
CurrentTemperature uint32
InstanceName string
}
func TemperaturesWithContext(ctx context.Context) ([]TemperatureStat, error) {
var ret []TemperatureStat
var dst []msAcpi_ThermalZoneTemperature
q := wmi.CreateQuery(&dst, "")
if err := common.WMIQueryWithContext(ctx, q, &dst, nil, "root/wmi"); err != nil {
return ret, err
}
for _, v := range dst {
ts := TemperatureStat{
SensorKey: v.InstanceName,
Temperature: kelvinToCelsius(v.CurrentTemperature, 2),
}
ret = append(ret, ts)
}
return ret, nil
}
func kelvinToCelsius(temp uint32, n int) float64 {
// wmi return temperature Kelvin * 10, so need to divide the result by 10,
// and then minus 273.15 to get °Celsius.
t := float64(temp/10) - 273.15
n10 := math.Pow10(n)
return math.Trunc((t+0.5/n10)*n10) / n10
}
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