| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QLOGGING_P_H |
| 5 | #define QLOGGING_P_H |
| 6 | |
| 7 | // |
| 8 | // W A R N I N G |
| 9 | // ------------- |
| 10 | // |
| 11 | // This file is not part of the Qt API. It exists for the convenience |
| 12 | // of a number of Qt sources files. This header file may change from |
| 13 | // version to version without notice, or even be removed. |
| 14 | // |
| 15 | // We mean it. |
| 16 | // |
| 17 | |
| 18 | #include <QtCore/private/qglobal_p.h> |
| 19 | #include "qlogging.h" |
| 20 | #include "qloggingcategory.h" |
| 21 | |
| 22 | #if !defined(QT_BOOTSTRAPPED) && QT_CONFIG(regularexpression) |
| 23 | # if __has_include(<cxxabi.h>) && QT_CONFIG(backtrace) |
| 24 | # include <optional> |
| 25 | # include "qvarlengtharray.h" |
| 26 | # define QLOGGING_USE_EXECINFO_BACKTRACE |
| 27 | # define QLOGGING_HAVE_BACKTRACE |
| 28 | # elif QT_CONFIG(cxx23_stacktrace) |
| 29 | # include <optional> |
| 30 | # include <stacktrace> |
| 31 | # define QLOGGING_USE_STD_BACKTRACE |
| 32 | # define QLOGGING_HAVE_BACKTRACE |
| 33 | # endif |
| 34 | #endif // QT_BOOTSTRAPPED |
| 35 | |
| 36 | QT_BEGIN_NAMESPACE |
| 37 | |
| 38 | namespace QtPrivate { |
| 39 | |
| 40 | Q_CORE_EXPORT bool shouldLogToStderr(); |
| 41 | |
| 42 | } |
| 43 | |
| 44 | class QInternalMessageLogContext : public QMessageLogContext |
| 45 | { |
| 46 | public: |
| 47 | static constexpr int DefaultBacktraceDepth = 32; |
| 48 | |
| 49 | #if defined(QLOGGING_USE_EXECINFO_BACKTRACE) |
| 50 | using BacktraceStorage = QVarLengthArray<void *, DefaultBacktraceDepth>; |
| 51 | #elif defined(QLOGGING_USE_STD_BACKTRACE) |
| 52 | using BacktraceStorage = std::stacktrace; |
| 53 | #else |
| 54 | using BacktraceStorage = bool; // dummy |
| 55 | #endif |
| 56 | |
| 57 | std::optional<BacktraceStorage> backtrace; |
| 58 | |
| 59 | Q_ALWAYS_INLINE QInternalMessageLogContext(const QMessageLogContext &logContext) |
| 60 | { |
| 61 | int backtraceFrames = initFrom(logContext); |
| 62 | if (backtraceFrames) |
| 63 | populateBacktrace(frameCount: backtraceFrames); |
| 64 | } |
| 65 | QInternalMessageLogContext(const QMessageLogContext &logContext, |
| 66 | const QLoggingCategory &categoryOverride) |
| 67 | : QInternalMessageLogContext(logContext) |
| 68 | { |
| 69 | category = categoryOverride.categoryName(); |
| 70 | } |
| 71 | |
| 72 | int initFrom(const QMessageLogContext &logContext); |
| 73 | void populateBacktrace(int frameCount); |
| 74 | }; |
| 75 | |
| 76 | QT_END_NAMESPACE |
| 77 | |
| 78 | #endif // QLOGGING_P_H |
| 79 |