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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QLOGGING_P_H
#define QLOGGING_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of a number of Qt sources files. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/private/qglobal_p.h>
#include "qlogging.h"
#include "qloggingcategory.h"
#if !defined(QT_BOOTSTRAPPED) && QT_CONFIG(regularexpression)
# if __has_include(<cxxabi.h>) && QT_CONFIG(backtrace)
# include <optional>
# include "qvarlengtharray.h"
# define QLOGGING_USE_EXECINFO_BACKTRACE
# define QLOGGING_HAVE_BACKTRACE
# elif QT_CONFIG(cxx23_stacktrace)
# include <optional>
# include <stacktrace>
# define QLOGGING_USE_STD_BACKTRACE
# define QLOGGING_HAVE_BACKTRACE
# endif
#endif // QT_BOOTSTRAPPED
QT_BEGIN_NAMESPACE
namespace QtPrivate {
Q_CORE_EXPORT bool shouldLogToStderr();
}
class QInternalMessageLogContext : public QMessageLogContext
{
public:
static constexpr int DefaultBacktraceDepth = 32;
#if defined(QLOGGING_USE_EXECINFO_BACKTRACE)
using BacktraceStorage = QVarLengthArray<void *, DefaultBacktraceDepth>;
#elif defined(QLOGGING_USE_STD_BACKTRACE)
using BacktraceStorage = std::stacktrace;
#else
using BacktraceStorage = bool; // dummy
#endif
std::optional<BacktraceStorage> backtrace;
Q_ALWAYS_INLINE QInternalMessageLogContext(const QMessageLogContext &logContext)
{
int backtraceFrames = initFrom(logContext);
if (backtraceFrames)
populateBacktrace(backtraceFrames);
}
QInternalMessageLogContext(const QMessageLogContext &logContext,
const QLoggingCategory &categoryOverride)
: QInternalMessageLogContext(logContext)
{
category = categoryOverride.categoryName();
}
int initFrom(const QMessageLogContext &logContext);
void populateBacktrace(int frameCount);
};
QT_END_NAMESPACE
#endif // QLOGGING_P_H
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