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