qt-creator/src/plugins/clangtools/clangtoolssettings.cpp

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** Copyright (C) 2016 The Qt Company Ltd.
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#include "clangtoolssettings.h"

#include "clangtoolsconstants.h"

#include <coreplugin/icore.h>

#include <utils/hostosinfo.h>
#include <utils/qtcassert.h>

#include <QFileInfo>
#include <QThread>

static const char simultaneousProcessesKey[] = "simultaneousProcesses";

namespace ClangTools {
namespace Internal {

ClangToolsSettings::ClangToolsSettings()
{
    readSettings();
}

ClangToolsSettings *ClangToolsSettings::instance()
{
    static ClangToolsSettings instance;
    return &instance;
}

int ClangToolsSettings::savedSimultaneousProcesses() const
{
    return m_savedSimultaneousProcesses;
}

int ClangToolsSettings::simultaneousProcesses() const
{
    return m_simultaneousProcesses;
}

void ClangToolsSettings::setSimultaneousProcesses(int processes)
{
    m_simultaneousProcesses = processes;
}

void ClangToolsSettings::readSettings()
{
    QSettings *settings = Core::ICore::settings();
    settings->beginGroup(QLatin1String(Constants::SETTINGS_ID));

    const int defaultSimultaneousProcesses = qMax(0, QThread::idealThreadCount() / 2);
    m_savedSimultaneousProcesses = m_simultaneousProcesses
            = settings->value(QString(simultaneousProcessesKey),
                              defaultSimultaneousProcesses).toInt();

    settings->endGroup();
}

void ClangToolsSettings::writeSettings()
{
    QSettings *settings = Core::ICore::settings();
    settings->beginGroup(QString(Constants::SETTINGS_ID));
    settings->setValue(QString(simultaneousProcessesKey), m_simultaneousProcesses);

    m_savedSimultaneousProcesses = m_simultaneousProcesses;

    settings->endGroup();
}

} // namespace Internal
} // namespace ClangTools