118 lines
4.3 KiB
C++
118 lines
4.3 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*
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* Copyright 2013 - 2020, nymea GmbH
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* Contact: contact@nymea.io
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*
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* This file is part of nymea.
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* This project including source code and documentation is protected by
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* copyright law, and remains the property of nymea GmbH. All rights, including
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* reproduction, publication, editing and translation, are reserved. The use of
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* this project is subject to the terms of a license agreement to be concluded
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* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
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* under https://nymea.io/license
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*
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* GNU Lesser General Public License Usage
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* Alternatively, this project may be redistributed and/or modified under the
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* terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; version 3. This project is distributed in the hope that
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* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this project. If not, see <https://www.gnu.org/licenses/>.
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*
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* For any further details and any questions please contact us under
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* contact@nymea.io or see our FAQ/Licensing Information on
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* https://nymea.io/license/faq
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include "integrationpluginsystemmonitor.h"
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#include "plugininfo.h"
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IntegrationPluginSystemMonitor::IntegrationPluginSystemMonitor()
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{
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}
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IntegrationPluginSystemMonitor::~IntegrationPluginSystemMonitor()
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{
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if (m_refreshTimer) {
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hardwareManager()->pluginTimerManager()->unregisterTimer(m_refreshTimer);
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}
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}
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void IntegrationPluginSystemMonitor::setupThing(ThingSetupInfo *info)
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{
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if (!m_refreshTimer) {
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m_refreshTimer = hardwareManager()->pluginTimerManager()->registerTimer(2);
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connect(m_refreshTimer, &PluginTimer::timeout, this, &IntegrationPluginSystemMonitor::onRefreshTimer);
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}
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info->finish(Thing::ThingErrorNoError);
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}
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void IntegrationPluginSystemMonitor::thingRemoved(Thing *thing)
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{
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Q_UNUSED(thing)
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if (myThings().isEmpty()) {
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hardwareManager()->pluginTimerManager()->unregisterTimer(m_refreshTimer);
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m_refreshTimer = nullptr;
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}
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}
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void IntegrationPluginSystemMonitor::onRefreshTimer()
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{
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QProcess *p = new QProcess(this);
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connect(p, SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(onProcessFinished(int,QProcess::ExitStatus)));
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p->start("ps", {"-C", "nymead", "-o", "%mem=,vsz=,rss=,pcpu="});
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}
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void IntegrationPluginSystemMonitor::onProcessFinished(int exitCode, QProcess::ExitStatus exitStatus)
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{
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QProcess *p = static_cast<QProcess*>(sender());
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p->deleteLater();
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if (exitCode != 0 || exitStatus != QProcess::NormalExit) {
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qWarning(dcSystemMonitor) << "Error reading process memory usage:" << p->readAllStandardError();
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return;
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}
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QString data = QString(p->readAllStandardOutput().trimmed()).replace(QRegExp("[ ]{2,}"), " ");
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QStringList parts = data.split(' ');
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if (parts.count() != 4) {
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qCWarning(dcSystemMonitor()) << "Unexpected result from ps" << data << parts;
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return;
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}
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bool ok;
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qreal percentMem = parts.at(0).toDouble(&ok);
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if (!ok) {
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qWarning(dcSystemMonitor) << "Failed to parse % memory value to a number:" << parts.at(0);
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return;
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}
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qint64 virtualMem = parts.at(1).toLongLong(&ok);
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if (!ok) {
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qWarning(dcSystemMonitor) << "Failed to parse virtual memory value to a number:" << parts.at(1);
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return;
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}
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quint64 rssMem = parts.at(2).toLongLong(&ok);
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if (!ok) {
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qWarning(dcSystemMonitor) << "Failed to parse RSS memory value to a number:" << data;
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return;
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}
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qreal cpuUsage = parts.at(3).toDouble(&ok);
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if (!ok) {
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qWarning(dcSystemMonitor) << "Failed to parse CPU usage value to a number:" << parts.at(3);
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return;
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}
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foreach (Thing *dev, myThings()) {
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dev->setStateValue(systemMonitorRssMemoryStateTypeId, rssMem);
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dev->setStateValue(systemMonitorPercentMemoryStateTypeId, percentMem);
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dev->setStateValue(systemMonitorVirtualMemoryStateTypeId, virtualMem);
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dev->setStateValue(systemMonitorCpuUsageStateTypeId, cpuUsage);
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}
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}
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