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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/qglobal.h>
#ifndef QLOGGING_H
#define QLOGGING_H
#if 0
// header is automatically included in qglobal.h
#pragma qt_no_master_include
#endif
QT_BEGIN_NAMESPACE
/*
Forward declarations only.
In order to use the qDebug() stream, you must #include<QDebug>
*/
class QDebug;
class QNoDebug;
enum QtMsgType { QtDebugMsg, QtWarningMsg, QtCriticalMsg, QtFatalMsg, QtInfoMsg, QtSystemMsg = QtCriticalMsg };
class QMessageLogContext
{
Q_DISABLE_COPY(QMessageLogContext)
public:
Q_DECL_CONSTEXPR QMessageLogContext() noexcept = default;
Q_DECL_CONSTEXPR QMessageLogContext(const char *fileName, int lineNumber, const char *functionName, const char *categoryName) noexcept
: line(lineNumber), file(fileName), function(functionName), category(categoryName) {}
int version = 2;
int line = 0;
const char *file = nullptr;
const char *function = nullptr;
const char *category = nullptr;
private:
QMessageLogContext ©ContextFrom(const QMessageLogContext &logContext) noexcept;
friend class QMessageLogger;
friend class QDebug;
};
class QLoggingCategory;
class Q_CORE_EXPORT QMessageLogger
{
Q_DISABLE_COPY(QMessageLogger)
public:
Q_DECL_CONSTEXPR QMessageLogger() : context() {}
Q_DECL_CONSTEXPR QMessageLogger(const char *file, int line, const char *function)
: context(file, line, function, "default") {}
Q_DECL_CONSTEXPR QMessageLogger(const char *file, int line, const char *function, const char *category)
: context(file, line, function, category) {}
void debug(const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
void noDebug(const char *, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(2, 3)
{}
void info(const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
Q_DECL_COLD_FUNCTION
void warning(const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
Q_DECL_COLD_FUNCTION
void critical(const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
typedef const QLoggingCategory &(*CategoryFunction)();
void debug(const QLoggingCategory &cat, const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(3, 4);
void debug(CategoryFunction catFunc, const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(3, 4);
void info(const QLoggingCategory &cat, const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(3, 4);
void info(CategoryFunction catFunc, const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(3, 4);
Q_DECL_COLD_FUNCTION
void warning(const QLoggingCategory &cat, const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(3, 4);
Q_DECL_COLD_FUNCTION
void warning(CategoryFunction catFunc, const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(3, 4);
Q_DECL_COLD_FUNCTION
void critical(const QLoggingCategory &cat, const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(3, 4);
Q_DECL_COLD_FUNCTION
void critical(CategoryFunction catFunc, const char *msg, ...) const Q_ATTRIBUTE_FORMAT_PRINTF(3, 4);
#ifndef Q_CC_MSVC
Q_NORETURN
#endif
Q_DECL_COLD_FUNCTION
void fatal(const char *msg, ...) const noexcept Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
#ifndef QT_NO_DEBUG_STREAM
QDebug debug() const;
QDebug debug(const QLoggingCategory &cat) const;
QDebug debug(CategoryFunction catFunc) const;
QDebug info() const;
QDebug info(const QLoggingCategory &cat) const;
QDebug info(CategoryFunction catFunc) const;
QDebug warning() const;
QDebug warning(const QLoggingCategory &cat) const;
QDebug warning(CategoryFunction catFunc) const;
QDebug critical() const;
QDebug critical(const QLoggingCategory &cat) const;
QDebug critical(CategoryFunction catFunc) const;
QNoDebug noDebug() const noexcept;
#endif // QT_NO_DEBUG_STREAM
private:
QMessageLogContext context;
};
#if !defined(QT_MESSAGELOGCONTEXT) && !defined(QT_NO_MESSAGELOGCONTEXT)
# if defined(QT_NO_DEBUG)
# define QT_NO_MESSAGELOGCONTEXT
# else
# define QT_MESSAGELOGCONTEXT
# endif
#endif
#ifdef QT_MESSAGELOGCONTEXT
#define QT_MESSAGELOG_FILE static_cast<const char *>(__FILE__)
#define QT_MESSAGELOG_LINE __LINE__
#define QT_MESSAGELOG_FUNC static_cast<const char *>(Q_FUNC_INFO)
#else
#define QT_MESSAGELOG_FILE nullptr
#define QT_MESSAGELOG_LINE 0
#define QT_MESSAGELOG_FUNC nullptr
#endif
#define qDebug QMessageLogger(QT_MESSAGELOG_FILE, QT_MESSAGELOG_LINE, QT_MESSAGELOG_FUNC).debug
#define qInfo QMessageLogger(QT_MESSAGELOG_FILE, QT_MESSAGELOG_LINE, QT_MESSAGELOG_FUNC).info
#define qWarning QMessageLogger(QT_MESSAGELOG_FILE, QT_MESSAGELOG_LINE, QT_MESSAGELOG_FUNC).warning
#define qCritical QMessageLogger(QT_MESSAGELOG_FILE, QT_MESSAGELOG_LINE, QT_MESSAGELOG_FUNC).critical
#define qFatal QMessageLogger(QT_MESSAGELOG_FILE, QT_MESSAGELOG_LINE, QT_MESSAGELOG_FUNC).fatal
#define QT_NO_QDEBUG_MACRO while (false) QMessageLogger().noDebug
#if defined(QT_NO_DEBUG_OUTPUT)
# undef qDebug
# define qDebug QT_NO_QDEBUG_MACRO
#endif
#if defined(QT_NO_INFO_OUTPUT)
# undef qInfo
# define qInfo QT_NO_QDEBUG_MACRO
#endif
#if defined(QT_NO_WARNING_OUTPUT)
# undef qWarning
# define qWarning QT_NO_QDEBUG_MACRO
#endif
Q_CORE_EXPORT void qt_message_output(QtMsgType, const QMessageLogContext &context,
const QString &message);
Q_CORE_EXPORT Q_DECL_COLD_FUNCTION void qErrnoWarning(int code, const char *msg, ...);
Q_CORE_EXPORT Q_DECL_COLD_FUNCTION void qErrnoWarning(const char *msg, ...);
#if QT_DEPRECATED_SINCE(5, 0)// deprecated. Use qInstallMessageHandler instead!
typedef void (*QtMsgHandler)(QtMsgType, const char *);
Q_CORE_EXPORT QT_DEPRECATED QtMsgHandler qInstallMsgHandler(QtMsgHandler);
#endif
typedef void (*QtMessageHandler)(QtMsgType, const QMessageLogContext &, const QString &);
Q_CORE_EXPORT QtMessageHandler qInstallMessageHandler(QtMessageHandler);
Q_CORE_EXPORT void qSetMessagePattern(const QString &messagePattern);
Q_CORE_EXPORT QString qFormatLogMessage(QtMsgType type, const QMessageLogContext &context,
const QString &buf);
QT_END_NAMESPACE
#endif // QLOGGING_H
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