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sensors.js
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sensors.js
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/*
Copyright (c) 2018, Chris Monahan <[email protected]>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the GNOME nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
const Lang = imports.lang;
const Me = imports.misc.extensionUtils.getCurrentExtension();
const FileModule = Me.imports.helpers.file;
const Gettext = imports.gettext.domain(Me.metadata['gettext-domain']);
const _ = Gettext.gettext;
let GTop, hasGTop = true;
try {
GTop = imports.gi.GTop;
} catch (e) {
global.log(e);
hasGTop = false;
}
var Sensors = new Lang.Class({
Name: 'Sensors',
_init: function(settings, sensorIcons) {
this._settings = settings;
this._update_time = this._settings.get_int('update-time');
this._sensorIcons = sensorIcons;
this.resetHistory();
this._trisensorsScanned = false;
this._last_query = 0;
this._last_processor = {};
this._last_network = {};
if (hasGTop) {
this.storage = new GTop.glibtop_fsusage();
this._storageDevice = '';
this._findStorageDevice();
this._lastRead = 0;
this._lastWrite = 0;
}
},
_findStorageDevice: function() {
new FileModule.File('/proc/mounts').read().then(lines => {
lines = lines.split("\n");
for (let line of Object.values(lines)) {
let loadArray = line.trim().split(/\s+/);
if (loadArray[1] == this._settings.get_string('storage-path')) {
this._storageDevice = loadArray[0];
break;
}
}
}).catch(err => {
global.log(err);
});
},
query: function(callback) {
// figure out last run time
let diff = this._update_time;
let now = new Date().getTime();
if (this._last_query)
diff = (now - this._last_query) / 1000;
this._last_query = now;
if (this._trisensorsScanned) {
this._queryTempVoltFan(callback);
} else {
this._trisensorsScanned = true;
this._discoverHardwareMonitors(callback);
}
for (let sensor in this._sensorIcons) {
if (sensor == 'temperature' || sensor == 'voltage' || sensor == 'fan')
continue;
if (this._settings.get_boolean('show-' + sensor)) {
let method = '_query' + sensor[0].toUpperCase() + sensor.slice(1);
this[method](callback, diff);
}
}
},
_queryTempVoltFan: function(callback) {
for (let label in this._tempVoltFanSensors) {
let sensor = this._tempVoltFanSensors[label];
new FileModule.File(sensor['path']).read().then(value => {
this._returnValue(callback, label, value, sensor['type'], sensor['format']);
}).catch(err => { });
}
},
_queryMemory: function(callback) {
// check memory info
new FileModule.File('/proc/meminfo').read().then(lines => {
let total = 0, avail = 0, swapTotal = 0, swapFree = 0;
let values = lines.match(/MemTotal:(\s+)(\d+) kB/);
if (values) total = values[2] * 1024;
values = lines.match(/MemAvailable:(\s+)(\d+) kB/);
if (values) avail = values[2] * 1024;
values = lines.match(/SwapTotal:(\s+)(\d+) kB/);
if (values) swapTotal = values[2] * 1024;
values = lines.match(/SwapFree:(\s+)(\d+) kB/);
if (values) swapFree = values[2] * 1024;
let used = total - avail
let utilized = used / total;
this._returnValue(callback, 'Usage', utilized, 'memory', 'percent');
this._returnValue(callback, 'memory', utilized, 'memory-group', 'percent');
this._returnValue(callback, 'Physical', total, 'memory', 'storage');
this._returnValue(callback, 'Available', avail, 'memory', 'storage');
this._returnValue(callback, 'Allocated', used, 'memory', 'storage');
this._returnValue(callback, 'Swap Used', swapTotal - swapFree, 'memory', 'storage');
}).catch(err => { });
},
_queryProcessor: function(callback, diff) {
let columns = ['user', 'nice', 'system', 'idle', 'iowait', 'irq', 'softirq', 'steal', 'guest', 'guest_nice'];
// check processor usage
new FileModule.File('/proc/stat').read().then(lines => {
lines = lines.split("\n");
let statistics = {};
let reverse_data;
for (let line of Object.values(lines)) {
let reverse_data = line.match(/^(cpu\d*\s)(.+)/);
if (reverse_data) {
let cpu = reverse_data[1].trim();
if (typeof statistics[cpu] == 'undefined')
statistics[cpu] = {};
if (typeof this._last_processor[cpu] == 'undefined')
this._last_processor[cpu] = 0;
let stats = reverse_data[2].trim().split(' ').reverse();
for (let index in columns)
statistics[cpu][columns[index]] = stats.pop();
}
}
for (let cpu in statistics) {
// make sure we have data to report
if (this._last_processor[cpu] > 0) {
let delta = (statistics[cpu]['user'] - this._last_processor[cpu]) / diff;
let label = cpu;
if (cpu == 'cpu') {
delta = delta / (Object.keys(statistics).length - 1);
label = 'Average';
this._returnValue(callback, 'processor', delta / 100, 'processor-group', 'percent');
} else
label = _('Core %d').format(cpu.substr(3));
this._returnValue(callback, label, delta / 100, 'processor', 'percent');
}
this._last_processor[cpu] = statistics[cpu]['user'];
}
}).catch(err => { });
// grab cpu frequency
new FileModule.File('/proc/cpuinfo').read().then(lines => {
lines = lines.split("\n");
let freqs = [];
for (let line of Object.values(lines)) {
let value = line.match(/^cpu MHz(\s+): ([+-]?\d+(\.\d+)?)/);
if (value) freqs.push(parseFloat(value[2]));
}
let sum = freqs.reduce(function(a, b) { return a + b; });
let hertz = (sum / freqs.length) * 1000 * 1000;
this._returnValue(callback, 'Frequency', hertz, 'processor', 'hertz');
}).catch(err => { });
},
_querySystem: function(callback) {
// check load average
new FileModule.File('/proc/sys/fs/file-nr').read().then(contents => {
let loadArray = contents.split('\t');
this._returnValue(callback, 'Open Files', loadArray[0], 'system', 'string');
}).catch(err => { });
// check load average
new FileModule.File('/proc/loadavg').read().then(contents => {
let loadArray = contents.split(' ');
let proc = loadArray[3].split('/');
this._returnValue(callback, 'Load 1m', loadArray[0], 'system', 'string');
this._returnValue(callback, 'system', loadArray[0], 'system-group', 'string');
this._returnValue(callback, 'Load 5m', loadArray[1], 'system', 'string');
this._returnValue(callback, 'Load 15m', loadArray[2], 'system', 'string');
this._returnValue(callback, 'Threads Active', proc[0], 'system', 'string');
this._returnValue(callback, 'Threads Total', proc[1], 'system', 'string');
}).catch(err => { });
// check uptime
new FileModule.File('/proc/uptime').read().then(contents => {
let upArray = contents.split(' ');
this._returnValue(callback, 'Uptime', upArray[0], 'system', 'duration');
let cores = Object.keys(this._last_processor).length - 1;
if (cores > 0)
this._returnValue(callback, 'Process Time', upArray[0] - upArray[1] / cores, 'processor', 'duration');
}).catch(err => { });
},
_queryBattery: function(callback) {
new FileModule.File('/sys/class/power_supply/BAT0/status').read().then(value => {
this._returnValue(callback, 'State', value, 'battery', '');
}).catch(err => { });
new FileModule.File('/sys/class/power_supply/BAT0/cycle_count').read().then(value => {
if (value > 0 || (value == 0 && !this._settings.get_boolean('hide-zeros')))
this._returnValue(callback, 'Cycles', value, 'battery', '');
}).catch(err => { });
new FileModule.File('/sys/class/power_supply/BAT0/charge_full').read().then(charge_full => {
new FileModule.File('/sys/class/power_supply/BAT0/voltage_min_design').read().then(voltage_min_design => {
this._returnValue(callback, 'Energy (full)', charge_full * voltage_min_design, 'battery', 'watt-hour');
new FileModule.File('/sys/class/power_supply/BAT0/charge_full_design').read().then(charge_full_design => {
this._returnValue(callback, 'Capacity', (charge_full / charge_full_design), 'battery', 'percent');
this._returnValue(callback, 'Energy (design)', charge_full_design * voltage_min_design, 'battery', 'watt-hour');
}).catch(err => { });
new FileModule.File('/sys/class/power_supply/BAT0/voltage_now').read().then(voltage_now => {
this._returnValue(callback, 'Voltage', voltage_now / 1000, 'battery', 'in');
new FileModule.File('/sys/class/power_supply/BAT0/current_now').read().then(current_now => {
let watt = current_now * voltage_now;
this._returnValue(callback, 'Rate', watt, 'battery', 'watt');
this._returnValue(callback, 'battery', watt, 'battery-group', 'watt');
new FileModule.File('/sys/class/power_supply/BAT0/charge_now').read().then(charge_now => {
let rest_pwr = voltage_min_design * charge_now;
this._returnValue(callback, 'Energy (now)', rest_pwr, 'battery', 'watt-hour');
//let time_left_h = rest_pwr / last_pwr;
//this._returnValue(callback, 'time_left_h', time_left_h, 'battery', '');
let level = charge_now / charge_full;
this._returnValue(callback, 'Percentage', level, 'battery', 'percent');
}).catch(err => { });
}).catch(err => { });
}).catch(err => { });
}).catch(err => { });
}).catch(err => {
new FileModule.File('/sys/class/power_supply/BAT0/energy_full').read().then(energy_full => {
new FileModule.File('/sys/class/power_supply/BAT0/voltage_min_design').read().then(voltage_min_design => {
this._returnValue(callback, 'Energy (full)', energy_full * 1000000, 'battery', 'watt-hour');
new FileModule.File('/sys/class/power_supply/BAT0/energy_full_design').read().then(energy_full_design => {
this._returnValue(callback, 'Capacity', (energy_full / energy_full_design), 'battery', 'percent');
this._returnValue(callback, 'Energy (design)', energy_full_design * 1000000, 'battery', 'watt-hour');
}).catch(err => { });
new FileModule.File('/sys/class/power_supply/BAT0/voltage_now').read().then(voltage_now => {
this._returnValue(callback, 'Voltage', voltage_now / 1000, 'battery', 'in');
new FileModule.File('/sys/class/power_supply/BAT0/power_now').read().then(power_now => {
this._returnValue(callback, 'Rate', power_now * 1000000, 'battery', 'watt');
this._returnValue(callback, 'battery', power_now * 1000000, 'battery-group', 'watt');
new FileModule.File('/sys/class/power_supply/BAT0/energy_now').read().then(energy_now => {
this._returnValue(callback, 'Energy (now)', energy_now * 1000000, 'battery', 'watt-hour');
//let time_left_h = energy_now / last_pwr;
//this._returnValue(callback, 'time_left_h', time_left_h, 'battery', '');
let level = energy_now / energy_full;
this._returnValue(callback, 'Percentage', level, 'battery', 'percent');
}).catch(err => { });
}).catch(err => { });
}).catch(err => { });
}).catch(err => { });
}).catch(err => { });
});
},
_queryNetwork: function(callback, diff) {
// check network speed
let netbase = '/sys/class/net/';
new FileModule.File(netbase).list().then(files => {
for (let key in files) {
let file = files[key];
if (typeof this._last_network[file] == 'undefined')
this._last_network[file] = {};
new FileModule.File(netbase + file + '/statistics/tx_bytes').read().then(value => {
let speed = 0;
if (typeof this._last_network[file]['tx'] != 'undefined') {
speed = (value - this._last_network[file]['tx']) / diff;
}
this._returnValue(callback, file + ' tx', speed, 'network-upload', 'speed');
if (value > 0 || (value == 0 && !this._settings.get_boolean('hide-zeros')))
this._last_network[file]['tx'] = value;
}).catch(err => { });
new FileModule.File(netbase + file + '/statistics/rx_bytes').read().then(value => {
let speed = 0;
if (typeof this._last_network[file]['rx'] != 'undefined') {
speed = (value - this._last_network[file]['rx']) / diff;
}
this._returnValue(callback, file + ' rx', speed, 'network-download', 'speed');
if (value > 0 || (value == 0 && !this._settings.get_boolean('hide-zeros')))
this._last_network[file]['rx'] = value;
}).catch(err => { });
}
}).catch(err => { });
// some may not want public ip checking
if (this._settings.get_boolean('include-public-ip')) {
// check the public ip every hour or when waking from sleep
if (this._next_public_ip_check <= 0) {
this._next_public_ip_check = 3600;
// check uptime
new FileModule.File('https://corecoding.com/vitals.php').read().then(contents => {
let obj = JSON.parse(contents);
this._returnValue(callback, 'Public IP', obj['IPv4'], 'network', 'string');
}).catch(err => { });
}
this._next_public_ip_check -= diff;
}
},
_queryStorage: function(callback, diff) {
if (!hasGTop) return;
GTop.glibtop_get_fsusage(this.storage, this._settings.get_string('storage-path'));
let total = this.storage.blocks * this.storage.block_size;
let avail = this.storage.bavail * this.storage.block_size;
let free = this.storage.bfree * this.storage.block_size;
let used = total - free;
let reserved = (total - avail) - used;
this._returnValue(callback, 'Total', total, 'storage', 'storage');
this._returnValue(callback, 'Used', used, 'storage', 'storage');
this._returnValue(callback, 'Reserved', reserved, 'storage', 'storage');
this._returnValue(callback, 'Free', avail, 'storage', 'storage');
this._returnValue(callback, 'storage', avail, 'storage-group', 'storage');
// check disk stats
new FileModule.File('/proc/diskstats').read().then(lines => {
lines = lines.split("\n");
for (let line of Object.values(lines)) {
let loadArray = line.trim().split(/\s+/);
if ('/dev/' + loadArray[2] == this._storageDevice) {
var read = (loadArray[5] * 512);
var write = (loadArray[9] * 512);
this._returnValue(callback, 'Data read', read, 'storage', 'storage');
this._returnValue(callback, 'Data written', write, 'storage', 'storage');
this._returnValue(callback, 'Data read/sec', (read - this._lastRead) / diff, 'storage', 'storage');
this._returnValue(callback, 'Data written/sec', (write - this._lastWrite) / diff, 'storage', 'storage');
this._lastRead = read;
this._lastWrite = write;
break;
}
}
}).catch(err => { });
},
_returnValue: function(callback, label, value, type, format) {
callback(label, value, type, format);
},
set update_time(update_time) {
this._update_time = update_time;
},
_discoverHardwareMonitors: function(callback) {
this._tempVoltFanSensors = {};
let hwbase = '/sys/class/hwmon/';
// process sensor_types now so it is not called multiple times below
let sensor_types = {};
if (this._settings.get_boolean('show-temperature'))
sensor_types['temp'] = 'temperature';
if (this._settings.get_boolean('show-voltage'))
sensor_types['in'] = 'voltage';
if (this._settings.get_boolean('show-fan'))
sensor_types['fan'] = 'fan';
// a little informal, but this code has zero I/O block
new FileModule.File(hwbase).list().then(files => {
for (let key in files) {
let file = files[key];
new FileModule.File(hwbase + file + '/name').read().then(name => {
this._processTempVoltFan(callback, sensor_types, name, hwbase + file, file);
}).catch(err => {
new FileModule.File(hwbase + file + '/device/name').read().then(name => {
this._processTempVoltFan(callback, sensor_types, name, hwbase + file + '/device', file);
}).catch(err => { });
});
}
}).catch(err => { });
},
_processTempVoltFan: function(callback, sensor_types, name, path, file) {
let sensor_files = [ 'input', 'label' ];
new FileModule.File(path).list().then(files2 => {
let trisensors = {};
for (let file2 of Object.values(files2)) {
for (let key of Object.values(sensor_files)) {
for (let sensor_type in sensor_types) {
if (file2.substr(0, sensor_type.length) == sensor_type && file2.substr(-6) == '_' + key) {
let key2 = file + file2.substr(0, file2.indexOf('_'));
if (typeof trisensors[key2] == 'undefined') {
trisensors[key2] = { 'type': sensor_types[sensor_type],
'format': sensor_type,
'label': path + '/name' };
}
trisensors[key2][key] = path + '/' + file2;
}
}
}
}
for (let obj of Object.values(trisensors)) {
new FileModule.File(obj['input']).read().then(value => {
let extra = (obj['label'].indexOf('_label')==-1) ? ' ' + obj['input'].substr(obj['input'].lastIndexOf('/')+1).split('_')[0] : '';
if ((value > 0 && this._settings.get_boolean('hide-zeros')) || !this._settings.get_boolean('hide-zeros')) {
new FileModule.File(obj['label']).read().then(label => {
this._addTempVoltFan(callback, obj, label, extra, value);
}).catch(err => {
// label file reading sometimes returns Invalid argument in which case we default to the name
let tmpFile = obj['label'].substr(0, obj['label'].lastIndexOf('/')) + '/name';
new FileModule.File(tmpFile).read().then(label => {
this._addTempVoltFan(callback, obj, label, extra, value);
}).catch(err => { });
});
}
}).catch(err => { });
}
}).catch(err => { });
},
_addTempVoltFan: function(callback, obj, label, extra, value) {
// prepend module that provided sensor data
//if (name != label) label = name + ' ' + label;
label = label + extra;
// if we have a sensor with a duplicate name, append ' 2' at the end
// could be written to support more than one duplicate, perhaps later
if (typeof this._tempVoltFanSensors[label] != 'undefined')
label = label + ' 2';
// update screen on initial build to prevent delay on update
this._returnValue(callback, label, value, obj['type'], obj['format']);
this._tempVoltFanSensors[label] = {'type': obj['type'],
'format': obj['format'],
'path': obj['input']};
},
resetHistory: function() {
this._next_public_ip_check = 0;
this._trisensorsScanned = false;
}
});