qt-everywhere-src-5.14.1/qtbase/src/corelib/kernel/qcoreglobaldata.cpp

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#include "qcoreglobaldata_p.h"
#if QT_CONFIG(textcodec)
#include "qtextcodec.h"
#endif

QT_BEGIN_NAMESPACE

Q_GLOBAL_STATIC(QCoreGlobalData, globalInstance)

QCoreGlobalData::QCoreGlobalData()
#if QT_CONFIG(textcodec)
    : codecForLocale(nullptr)
#endif
{
}

QCoreGlobalData::~QCoreGlobalData()
{
#if QT_CONFIG(textcodec)
    codecForLocale = nullptr;
    QList<QTextCodec *> tmp = allCodecs;
    allCodecs.clear();
    codecCache.clear();
    for (QList<QTextCodec *>::const_iterator it = tmp.constBegin(); it != tmp.constEnd(); ++it)
        delete *it;
#endif
}

QCoreGlobalData *QCoreGlobalData::instance()
{
    return globalInstance();
}

QT_END_NAMESPACE