/usr/lib/python3/dist-packages/glances/plugins/glances_sensors.py is in glances 2.11.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# This file is part of Glances.
#
# Copyright (C) 2017 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Sensors plugin."""
import psutil
from glances.logger import logger
from glances.compat import iteritems
from glances.plugins.glances_batpercent import Plugin as BatPercentPlugin
from glances.plugins.glances_hddtemp import Plugin as HddTempPlugin
from glances.plugins.glances_plugin import GlancesPlugin
SENSOR_TEMP_UNIT = 'C'
SENSOR_FAN_UNIT = 'rpm'
def to_fahrenheit(celsius):
"""Convert Celsius to Fahrenheit."""
return celsius * 1.8 + 32
class Plugin(GlancesPlugin):
"""Glances sensors plugin.
The stats list includes both sensors and hard disks stats, if any.
The sensors are already grouped by chip type and then sorted by name.
The hard disks are already sorted by name.
"""
def __init__(self, args=None):
"""Init the plugin."""
super(Plugin, self).__init__(args=args)
# Init the sensor class
self.glancesgrabsensors = GlancesGrabSensors()
# Instance for the HDDTemp Plugin in order to display the hard disks
# temperatures
self.hddtemp_plugin = HddTempPlugin(args=args)
# Instance for the BatPercent in order to display the batteries
# capacities
self.batpercent_plugin = BatPercentPlugin(args=args)
# We want to display the stat in the curse interface
self.display_curse = True
# Init the stats
self.reset()
def get_key(self):
"""Return the key of the list."""
return 'label'
def reset(self):
"""Reset/init the stats."""
self.stats = []
@GlancesPlugin._check_decorator
@GlancesPlugin._log_result_decorator
def update(self):
"""Update sensors stats using the input method."""
# Reset the stats
self.reset()
if self.input_method == 'local':
# Update stats using the dedicated lib
self.stats = []
# Get the temperature
try:
temperature = self.__set_type(self.glancesgrabsensors.get('temperature_core'),
'temperature_core')
except Exception as e:
logger.error("Cannot grab sensors temperatures (%s)" % e)
else:
# Append temperature
self.stats.extend(temperature)
# Get the FAN speed
try:
fan_speed = self.__set_type(self.glancesgrabsensors.get('fan_speed'),
'fan_speed')
except Exception as e:
logger.error("Cannot grab FAN speed (%s)" % e)
else:
# Append FAN speed
self.stats.extend(fan_speed)
# Update HDDtemp stats
try:
hddtemp = self.__set_type(self.hddtemp_plugin.update(),
'temperature_hdd')
except Exception as e:
logger.error("Cannot grab HDD temperature (%s)" % e)
else:
# Append HDD temperature
self.stats.extend(hddtemp)
# Update batteries stats
try:
batpercent = self.__set_type(self.batpercent_plugin.update(),
'battery')
except Exception as e:
logger.error("Cannot grab battery percent (%s)" % e)
else:
# Append Batteries %
self.stats.extend(batpercent)
elif self.input_method == 'snmp':
# Update stats using SNMP
# No standard:
# http://www.net-snmp.org/wiki/index.php/Net-SNMP_and_lm-sensors_on_Ubuntu_10.04
pass
return self.stats
def __set_type(self, stats, sensor_type):
"""Set the plugin type.
4 types of stats is possible in the sensors plugin:
- Core temperature: 'temperature_core'
- Fan speed: 'fan_speed'
- HDD temperature: 'temperature_hdd'
- Battery capacity: 'battery'
"""
for i in stats:
# Set the sensors type
i.update({'type': sensor_type})
# also add the key name
i.update({'key': self.get_key()})
return stats
def update_views(self):
"""Update stats views."""
# Call the father's method
super(Plugin, self).update_views()
# Add specifics informations
# Alert
for i in self.stats:
if not i['value']:
continue
if i['type'] == 'battery':
self.views[i[self.get_key()]]['value']['decoration'] = self.get_alert(100 - i['value'], header=i['type'])
else:
self.views[i[self.get_key()]]['value']['decoration'] = self.get_alert(i['value'], header=i['type'])
def msg_curse(self, args=None):
"""Return the dict to display in the curse interface."""
# Init the return message
ret = []
# Only process if stats exist and display plugin enable...
if not self.stats or args.disable_sensors:
return ret
# Build the string message
# Header
msg = '{:18}'.format('SENSORS')
ret.append(self.curse_add_line(msg, "TITLE"))
for i in self.stats:
# Do not display anything if no battery are detected
if i['type'] == 'battery' and i['value'] == []:
continue
# New line
ret.append(self.curse_new_line())
# Alias for the lable name ?
label = self.has_alias(i['label'].lower())
if label is None:
label = i['label']
if i['type'] != 'fan_speed':
msg = '{:15}'.format(label[:15])
else:
msg = '{:13}'.format(label[:13])
ret.append(self.curse_add_line(msg))
if i['value'] in (b'ERR', b'SLP', b'UNK', b'NOS'):
msg = '{:>8}'.format(i['value'])
ret.append(self.curse_add_line(
msg, self.get_views(item=i[self.get_key()],
key='value',
option='decoration')))
else:
if (args.fahrenheit and i['type'] != 'battery' and
i['type'] != 'fan_speed'):
value = to_fahrenheit(i['value'])
unit = 'F'
else:
value = i['value']
unit = i['unit']
try:
msg = '{:>7.0f}{}'.format(value, unit)
ret.append(self.curse_add_line(
msg, self.get_views(item=i[self.get_key()],
key='value',
option='decoration')))
except (TypeError, ValueError):
pass
return ret
class GlancesGrabSensors(object):
"""Get sensors stats."""
def __init__(self):
"""Init sensors stats."""
# Temperatures
self.init_temp = False
self.stemps = {}
try:
# psutil>=5.1.0 is required
self.stemps = psutil.sensors_temperatures()
except AttributeError:
logger.warning("PsUtil 5.1.0 or higher is needed to grab temperatures sensors")
except OSError as e:
# FreeBSD: If oid 'hw.acpi.battery' not present, Glances wont start #1055
logger.error("Can not grab temperatures sensors ({})".format(e))
else:
self.init_temp = True
# Fans
self.init_fan = False
self.sfans = {}
try:
# psutil>=5.2.0 is required
self.sfans = psutil.sensors_fans()
except AttributeError:
logger.warning("PsUtil 5.2.0 or higher is needed to grab fans sensors")
except OSError as e:
logger.error("Can not grab fans sensors ({})".format(e))
else:
self.init_fan = True
# !!! Disable Fan: High CPU consumption is PSUtil 5.2.0
# Delete the following line when corrected
self.init_fan = False
# Init the stats
self.reset()
def reset(self):
"""Reset/init the stats."""
self.sensors_list = []
def __update__(self):
"""Update the stats."""
# Reset the list
self.reset()
if not self.init_temp:
return self.sensors_list
# Temperatures sensors
self.sensors_list.extend(self.build_sensors_list(SENSOR_TEMP_UNIT))
# Fans sensors
self.sensors_list.extend(self.build_sensors_list(SENSOR_FAN_UNIT))
return self.sensors_list
def build_sensors_list(self, type):
"""Build the sensors list depending of the type.
type: SENSOR_TEMP_UNIT or SENSOR_FAN_UNIT
output: a list"""
ret = []
if type == SENSOR_TEMP_UNIT and self.init_temp:
input_list = self.stemps
self.stemps = psutil.sensors_temperatures()
elif type == SENSOR_FAN_UNIT and self.init_fan:
input_list = self.sfans
self.sfans = psutil.sensors_fans()
else:
return ret
for chipname, chip in iteritems(input_list):
i = 1
for feature in chip:
sensors_current = {}
# Sensor name
if feature.label == '':
sensors_current['label'] = chipname + ' ' + str(i)
else:
sensors_current['label'] = feature.label
# Fan speed and unit
sensors_current['value'] = int(feature.current)
sensors_current['unit'] = type
# Add sensor to the list
ret.append(sensors_current)
i += 1
return ret
def get(self, sensor_type='temperature_core'):
"""Get sensors list."""
self.__update__()
if sensor_type == 'temperature_core':
ret = [s for s in self.sensors_list if s['unit'] == SENSOR_TEMP_UNIT]
elif sensor_type == 'fan_speed':
ret = [s for s in self.sensors_list if s['unit'] == SENSOR_FAN_UNIT]
else:
# Unknown type
logger.debug("Unknown sensor type %s" % sensor_type)
ret = []
return ret
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