oshi.hardware.platform.unix.openbsd.OpenBsdSensors Maven / Gradle / Ivy

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/**
 * MIT License
 *
 * Copyright (c) 2010 - 2021 The OSHI Project Contributors: https://github.com/oshi/oshi/graphs/contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package oshi.hardware.platform.unix.openbsd;

import static oshi.util.Memoizer.defaultExpiration;
import static oshi.util.Memoizer.memoize;

import java.util.ArrayList;
import java.util.List;
import java.util.function.Supplier;

import oshi.annotation.concurrent.ThreadSafe;
import oshi.hardware.common.AbstractSensors;
import oshi.util.ExecutingCommand;
import oshi.util.ParseUtil;
import oshi.util.tuples.Triplet;

/**
 * Sensors
 */
@ThreadSafe
final class OpenBsdSensors extends AbstractSensors {

    private final Supplier> tempFanVolts = memoize(OpenBsdSensors::querySensors,
            defaultExpiration());

    @Override
    public double queryCpuTemperature() {
        return tempFanVolts.get().getA();
    }

    @Override
    public int[] queryFanSpeeds() {
        return tempFanVolts.get().getB();
    }

    @Override
    public double queryCpuVoltage() {
        return tempFanVolts.get().getC();
    }

    private static Triplet querySensors() {
        double volts = 0d;
        List cpuTemps = new ArrayList<>();
        List allTemps = new ArrayList<>();
        List fanRPMs = new ArrayList<>();
        for (String line : ExecutingCommand.runNative("systat -ab sensors")) {
            String[] split = ParseUtil.whitespaces.split(line);
            if (split.length > 1) {
                if (split[0].contains("cpu")) {
                    if (split[0].contains("temp0")) {
                        cpuTemps.add(ParseUtil.parseDoubleOrDefault(split[1], Double.NaN));
                    } else if (split[0].contains("volt0")) {
                        volts = ParseUtil.parseDoubleOrDefault(split[1], 0d);
                    }
                } else if (split[0].contains("temp0")) {
                    allTemps.add(ParseUtil.parseDoubleOrDefault(split[1], Double.NaN));
                } else if (split[0].contains("fan")) {
                    fanRPMs.add(ParseUtil.parseIntOrDefault(split[1], 0));
                }
            }
        }
        // Prefer cpu temps
        double temp = cpuTemps.isEmpty() ? listAverage(allTemps) : listAverage(cpuTemps);
        // Collect all fans
        int[] fans = new int[fanRPMs.size()];
        for (int i = 0; i < fans.length; i++) {
            fans[i] = fanRPMs.get(i);
        }
        return new Triplet<>(temp, fans, volts);
    }

    private static double listAverage(List doubles) {
        double sum = 0d;
        int count = 0;
        for (Double d : doubles) {
            if (!d.isNaN()) {
                sum += d;
                count++;
            }
        }
        return count > 0 ? sum / count : 0d;
    }
}