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| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtQml module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
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| ** GNU Lesser General Public License Usage |
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| ** packaging of this file. Please review the following information to |
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| ** Alternatively, this file may be used under the terms of the GNU |
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| ****************************************************************************/ |
| |
| #ifndef QV4PROFILING_H |
| #define QV4PROFILING_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include "qv4global_p.h" |
| #include "qv4engine_p.h" |
| #include "qv4function_p.h" |
| |
| #include <QElapsedTimer> |
| |
| #if !QT_CONFIG(qml_debug) |
| |
| #define Q_V4_PROFILE_ALLOC(engine, size, type) (!engine) |
| #define Q_V4_PROFILE_DEALLOC(engine, size, type) (!engine) |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QV4 { |
| namespace Profiling { |
| class Profiler {}; |
| class FunctionCallProfiler { |
| public: |
| FunctionCallProfiler(ExecutionEngine *, Function *) {} |
| }; |
| } |
| } |
| |
| QT_END_NAMESPACE |
| |
| #else |
| |
| #define Q_V4_PROFILE_ALLOC(engine, size, type)\ |
| (engine->profiler() &&\ |
| (engine->profiler()->featuresEnabled & (1 << Profiling::FeatureMemoryAllocation)) ?\ |
| engine->profiler()->trackAlloc(size, type) : false) |
| |
| #define Q_V4_PROFILE_DEALLOC(engine, size, type) \ |
| (engine->profiler() &&\ |
| (engine->profiler()->featuresEnabled & (1 << Profiling::FeatureMemoryAllocation)) ?\ |
| engine->profiler()->trackDealloc(size, type) : false) |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QV4 { |
| |
| namespace Profiling { |
| |
| enum Features { |
| FeatureFunctionCall, |
| FeatureMemoryAllocation |
| }; |
| |
| enum MemoryType { |
| HeapPage, |
| LargeItem, |
| SmallItem |
| }; |
| |
| struct FunctionCallProperties { |
| qint64 start; |
| qint64 end; |
| quintptr id; |
| }; |
| |
| struct FunctionLocation { |
| FunctionLocation(const QString &name = QString(), const QString &file = QString(), |
| int line = -1, int column = -1) : |
| name(name), file(file), line(line), column(column) |
| {} |
| |
| bool isValid() |
| { |
| return !name.isEmpty(); |
| } |
| |
| QString name; |
| QString file; |
| int line; |
| int column; |
| }; |
| |
| typedef QHash<quintptr, QV4::Profiling::FunctionLocation> FunctionLocationHash; |
| |
| struct MemoryAllocationProperties { |
| qint64 timestamp; |
| qint64 size; |
| MemoryType type; |
| }; |
| |
| class FunctionCall { |
| public: |
| |
| FunctionCall() : m_function(nullptr), m_start(0), m_end(0) |
| { Q_ASSERT_X(false, Q_FUNC_INFO, "Cannot construct a function call without function"); } |
| |
| FunctionCall(Function *function, qint64 start, qint64 end) : |
| m_function(function), m_start(start), m_end(end) |
| { m_function->executableCompilationUnit()->addref(); } |
| |
| FunctionCall(const FunctionCall &other) : |
| m_function(other.m_function), m_start(other.m_start), m_end(other.m_end) |
| { m_function->executableCompilationUnit()->addref(); } |
| |
| ~FunctionCall() |
| { m_function->executableCompilationUnit()->release(); } |
| |
| FunctionCall &operator=(const FunctionCall &other) { |
| if (&other != this) { |
| other.m_function->executableCompilationUnit()->addref(); |
| m_function->executableCompilationUnit()->release(); |
| m_function = other.m_function; |
| m_start = other.m_start; |
| m_end = other.m_end; |
| } |
| return *this; |
| } |
| |
| Function *function() const |
| { |
| return m_function; |
| } |
| |
| FunctionLocation resolveLocation() const; |
| FunctionCallProperties properties() const; |
| |
| private: |
| friend bool operator<(const FunctionCall &call1, const FunctionCall &call2); |
| |
| Function *m_function; |
| qint64 m_start; |
| qint64 m_end; |
| }; |
| |
| class Q_QML_EXPORT Profiler : public QObject { |
| Q_OBJECT |
| public: |
| struct SentMarker { |
| SentMarker() : m_function(nullptr) {} |
| |
| SentMarker(const SentMarker &other) : m_function(other.m_function) |
| { |
| if (m_function) |
| m_function->executableCompilationUnit()->addref(); |
| } |
| |
| ~SentMarker() |
| { |
| if (m_function) |
| m_function->executableCompilationUnit()->release(); |
| } |
| |
| SentMarker &operator=(const SentMarker &other) |
| { |
| if (&other != this) { |
| if (m_function) |
| m_function->executableCompilationUnit()->release(); |
| m_function = other.m_function; |
| m_function->executableCompilationUnit()->addref(); |
| } |
| return *this; |
| } |
| |
| void setFunction(Function *function) |
| { |
| Q_ASSERT(m_function == nullptr); |
| m_function = function; |
| m_function->executableCompilationUnit()->addref(); |
| } |
| |
| bool isValid() const |
| { return m_function != nullptr; } |
| |
| private: |
| Function *m_function; |
| }; |
| |
| Profiler(QV4::ExecutionEngine *engine); |
| |
| bool trackAlloc(size_t size, MemoryType type) |
| { |
| if (size) { |
| MemoryAllocationProperties allocation = {m_timer.nsecsElapsed(), (qint64)size, type}; |
| m_memory_data.append(allocation); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| bool trackDealloc(size_t size, MemoryType type) |
| { |
| if (size) { |
| MemoryAllocationProperties allocation = {m_timer.nsecsElapsed(), -(qint64)size, type}; |
| m_memory_data.append(allocation); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| quint64 featuresEnabled; |
| |
| void stopProfiling(); |
| void startProfiling(quint64 features); |
| void reportData(); |
| void setTimer(const QElapsedTimer &timer) { m_timer = timer; } |
| |
| signals: |
| void dataReady(const QV4::Profiling::FunctionLocationHash &, |
| const QVector<QV4::Profiling::FunctionCallProperties> &, |
| const QVector<QV4::Profiling::MemoryAllocationProperties> &); |
| |
| private: |
| QV4::ExecutionEngine *m_engine; |
| QElapsedTimer m_timer; |
| QVector<FunctionCall> m_data; |
| QVector<MemoryAllocationProperties> m_memory_data; |
| QHash<quintptr, SentMarker> m_sentLocations; |
| |
| friend class FunctionCallProfiler; |
| }; |
| |
| class FunctionCallProfiler { |
| Q_DISABLE_COPY(FunctionCallProfiler) |
| public: |
| |
| // It's enough to ref() the function in the destructor as it will probably not disappear while |
| // it's executing ... |
| FunctionCallProfiler(ExecutionEngine *engine, Function *f) |
| : profiler(nullptr) |
| { |
| Profiler *p = engine->profiler(); |
| if (Q_UNLIKELY(p) && (p->featuresEnabled & (1 << Profiling::FeatureFunctionCall))) { |
| profiler = p; |
| function = f; |
| startTime = profiler->m_timer.nsecsElapsed(); |
| } |
| } |
| |
| ~FunctionCallProfiler() |
| { |
| if (profiler) |
| profiler->m_data.append(FunctionCall(function, startTime, profiler->m_timer.nsecsElapsed())); |
| } |
| |
| Profiler *profiler; |
| Function *function; |
| qint64 startTime; |
| }; |
| |
| |
| } // namespace Profiling |
| } // namespace QV4 |
| |
| Q_DECLARE_TYPEINFO(QV4::Profiling::MemoryAllocationProperties, Q_MOVABLE_TYPE); |
| Q_DECLARE_TYPEINFO(QV4::Profiling::FunctionCallProperties, Q_MOVABLE_TYPE); |
| Q_DECLARE_TYPEINFO(QV4::Profiling::FunctionCall, Q_MOVABLE_TYPE); |
| Q_DECLARE_TYPEINFO(QV4::Profiling::FunctionLocation, Q_MOVABLE_TYPE); |
| Q_DECLARE_TYPEINFO(QV4::Profiling::Profiler::SentMarker, Q_MOVABLE_TYPE); |
| |
| QT_END_NAMESPACE |
| Q_DECLARE_METATYPE(QV4::Profiling::FunctionLocationHash) |
| Q_DECLARE_METATYPE(QVector<QV4::Profiling::FunctionCallProperties>) |
| Q_DECLARE_METATYPE(QVector<QV4::Profiling::MemoryAllocationProperties>) |
| |
| #endif // QT_CONFIG(qml_debug) |
| |
| #endif // QV4PROFILING_H |