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+/****************************************************************************
+**
+** Copyright (C) 2018 Pelagicore AG
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Pelagicore Application Manager.
+**
+** $QT_BEGIN_LICENSE:LGPL-QTAS$
+** Commercial License Usage
+** Licensees holding valid commercial Qt Automotive Suite licenses may use
+** this file in accordance with the commercial license agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and The Qt Company. For
+** licensing terms and conditions see https://www.qt.io/terms-conditions.
+** For further information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+** SPDX-License-Identifier: LGPL-3.0
+**
+****************************************************************************/
+
+#include "cpustatus.h"
+
+#include <QThread>
+
+/*!
+ \qmltype CpuStatus
+ \inqmlmodule QtApplicationManager
+ \ingroup common-instantiatable
+ \brief Provides information on the CPU status.
+
+ As the name implies, CpuStatus provides information on the status of the CPU. Its property values
+ are updated whenever the method update() is called.
+
+ You can use this component as a MonitorModel data source if you want to plot its
+ previous values over time.
+
+ \qml
+ import QtQuick 2.11
+ import QtApplicationManager 1.0
+ ...
+ MonitorModel {
+ CpuStatus {}
+ }
+ \endqml
+
+ You can also use it alongside a Timer for instance, when you're only interested in its current value.
+
+ \qml
+ import QtQuick 2.11
+ import QtApplicationManager 1.0
+ ...
+ CpuStatus { id: cpuStatus }
+ Timer {
+ interval: 500
+ running: true
+ repeat: true
+ onTriggered: cpuStatus.update()
+ }
+ Text {
+ property string loadPercent: Number(cpuStatus.cpuLoad * 100).toLocaleString(Qt.locale("en_US"), 'f', 1)
+ text: "cpuLoad: " + loadPercent + "%"
+ }
+ \endqml
+*/
+
+QT_USE_NAMESPACE_AM
+
+CpuStatus::CpuStatus(QObject *parent)
+ : QObject(parent)
+ , m_cpuReader(new CpuReader)
+ , m_cpuLoad(0)
+{
+}
+
+/*!
+ \qmlproperty real CpuStatus::cpuLoad
+ \readonly
+
+ The CPU utilization when update() was last called, as a value ranging from 0 (inclusive, completely
+ idle) to 1 (inclusive, fully busy).
+
+ \sa CpuStatus::update
+*/
+qreal CpuStatus::cpuLoad() const
+{
+ return m_cpuLoad;
+}
+
+/*!
+ \qmlproperty int CpuStatus::cpuCores
+ \readonly
+
+ The number of physical CPU cores that are installed on the system.
+*/
+int CpuStatus::cpuCores() const
+{
+ return QThread::idealThreadCount();
+}
+
+/*!
+ \qmlmethod CpuStatus::update
+
+ Updates the cpuLoad property.
+
+ \sa CpuStatus::cpuLoad
+*/
+void CpuStatus::update()
+{
+ qreal newLoad = m_cpuReader->readLoadValue();
+ if (newLoad != m_cpuLoad) {
+ m_cpuLoad = newLoad;
+ emit cpuLoadChanged();
+ }
+}
+
+/*!
+ \qmlproperty list<string> CpuStatus::roleNames
+ \readonly
+
+ Names of the roles provided by CpuStatus when used as a MonitorModel data source.
+
+ \sa MonitorModel
+*/
+QStringList CpuStatus::roleNames() const
+{
+ return { qSL("cpuLoad") };
+}