76 lines
1.5 KiB
Go
76 lines
1.5 KiB
Go
// +build openbsd
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package devices
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// loosely based on https://github.com/openbsd/src/blob/master/sbin/sysctl/sysctl.c#L2517
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// #include <sys/time.h>
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// #include <sys/sysctl.h>
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// #include <sys/sensors.h>
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import "C"
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import (
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"strconv"
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"syscall"
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"unsafe"
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)
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// TODO: Add sensor filtering
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func init() {
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RegisterTemp(update)
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}
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func update(temps map[string]int) map[string]error {
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mib := []C.int{0, 1, 2, 3, 4}
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var snsrdev C.struct_sensordev
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var len C.ulong = C.sizeof_struct_sensordev
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mib[0] = C.CTL_HW
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mib[1] = C.HW_SENSORS
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mib[3] = C.SENSOR_TEMP
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var i C.int
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for i = 0; ; i++ {
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mib[2] = i
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if v, e := C.sysctl(&mib[0], 3, unsafe.Pointer(&snsrdev), &len, nil, 0); v == -1 {
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if e == syscall.ENXIO {
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continue
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}
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if e == syscall.ENOENT {
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break
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}
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}
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getTemp(temps, mib, 4, &snsrdev, 0)
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}
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return nil
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}
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func getTemp(temps map[string]int, mib []C.int, mlen int, snsrdev *C.struct_sensordev, index int) {
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switch mlen {
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case 4:
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k := mib[3]
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var numt C.int
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for numt = 0; numt < snsrdev.maxnumt[k]; numt++ {
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mib[4] = numt
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getTemp(temps, mib, mlen+1, snsrdev, int(numt))
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}
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case 5:
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var snsr C.struct_sensor
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var slen C.size_t = C.sizeof_struct_sensor
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if v, _ := C.sysctl(&mib[0], 5, unsafe.Pointer(&snsr), &slen, nil, 0); v == -1 {
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return
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}
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if slen > 0 && (snsr.flags&C.SENSOR_FINVALID) == 0 {
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key := C.GoString(&snsrdev.xname[0]) + ".temp" + strconv.Itoa(index)
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temp := int((snsr.value - 273150000.0) / 1000000.0)
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if _, ok := temps[key]; ok {
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temps[key] = temp
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}
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}
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}
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}
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