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/*
* Copyright (c) 2009, Jay Loden, Giampaolo Rodola'. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/*
Original code was refactored and moved from psutil/arch/freebsd/specific.c
For reference, here's the git history with original(ish) implementations:
- sensors_battery(): 022cf0a05d34f4274269d4f8002ee95b9f3e32d2
- sensors_cpu_temperature(): bb5d032be76980a9e110f03f1203bd35fa85a793
(patch by Alex Manuskin)
*/
#include <Python.h>
#include <sys/sysctl.h>
#include "../../_psutil_common.h"
#include "../../_psutil_posix.h"
#define DECIKELVIN_2_CELSIUS(t) (t - 2731) / 10
PyObject *
psutil_sensors_battery(PyObject *self, PyObject *args) {
int percent;
int minsleft;
int power_plugged;
size_t size = sizeof(percent);
if (sysctlbyname("hw.acpi.battery.life", &percent, &size, NULL, 0))
goto error;
if (sysctlbyname("hw.acpi.battery.time", &minsleft, &size, NULL, 0))
goto error;
if (sysctlbyname("hw.acpi.acline", &power_plugged, &size, NULL, 0))
goto error;
return Py_BuildValue("iii", percent, minsleft, power_plugged);
error:
// see: https://github.com/giampaolo/psutil/issues/1074
if (errno == ENOENT)
PyErr_SetString(PyExc_NotImplementedError, "no battery");
else
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
// Return temperature information for a given CPU core number.
PyObject *
psutil_sensors_cpu_temperature(PyObject *self, PyObject *args) {
int current;
int tjmax;
int core;
char sensor[26];
size_t size = sizeof(current);
if (! PyArg_ParseTuple(args, "i", &core))
return NULL;
sprintf(sensor, "dev.cpu.%d.temperature", core);
if (sysctlbyname(sensor, ¤t, &size, NULL, 0))
goto error;
current = DECIKELVIN_2_CELSIUS(current);
// Return -273 in case of failure.
sprintf(sensor, "dev.cpu.%d.coretemp.tjmax", core);
if (sysctlbyname(sensor, &tjmax, &size, NULL, 0))
tjmax = 0;
tjmax = DECIKELVIN_2_CELSIUS(tjmax);
return Py_BuildValue("ii", current, tjmax);
error:
if (errno == ENOENT)
PyErr_SetString(PyExc_NotImplementedError, "no temperature sensors");
else
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
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