Add temperature data for freebsd

Author: roib

agent/sensors_default.go

@@ -1,4 +1,4 @@
-//go:build !windows
+//go:build !windows && !freebsd
 
 package agent
 

agent/sensors_freebsd.go

@@ -0,0 +1,45 @@
+//go:build freebsd
+
+package agent
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/shirou/gopsutil/v4/sensors"
+	"golang.org/x/sys/unix"
+)
+
+var getSensorTemps getTempsFn = freebsdGetTemps
+
+// freebsdGetTemps reads hardware temperatures from FreeBSD sysctls.
+// CPU temps come from dev.cpu.N.temperature (coretemp/amdtemp drivers).
+// System temps come from hw.acpi.thermal.tzN.temperature (ACPI thermal zones).
+// Values are in deciKelvin; conversion: °C = val/10 - 273.15.
+func freebsdGetTemps(_ context.Context) ([]sensors.TemperatureStat, error) {
+	var temps []sensors.TemperatureStat
+
+	for i := range 64 {
+		val, err := unix.SysctlUint32(fmt.Sprintf("dev.cpu.%d.temperature", i))
+		if err != nil {
+			break
+		}
+		temps = append(temps, sensors.TemperatureStat{
+			SensorKey:   fmt.Sprintf("cpu%d", i),
+			Temperature: float64(val)/10.0 - 273.15,
+		})
+	}
+
+	for i := range 16 {
+		val, err := unix.SysctlUint32(fmt.Sprintf("hw.acpi.thermal.tz%d.temperature", i))
+		if err != nil {
+			break
+		}
+		temps = append(temps, sensors.TemperatureStat{
+			SensorKey:   fmt.Sprintf("tz%d", i),
+			Temperature: float64(val)/10.0 - 273.15,
+		})
+	}
+
+	return temps, nil
+}