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Diffstat (limited to 'src/qml/debugger/qqmlmemoryprofiler_p.h')
-rw-r--r-- | src/qml/debugger/qqmlmemoryprofiler_p.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/qml/debugger/qqmlmemoryprofiler_p.h b/src/qml/debugger/qqmlmemoryprofiler_p.h new file mode 100644 index 0000000000..fb71c999c3 --- /dev/null +++ b/src/qml/debugger/qqmlmemoryprofiler_p.h @@ -0,0 +1,134 @@ +/**************************************************************************** +** +** 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 +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQMLMEMORYPROFILER_H +#define QQMLMEMORYPROFILER_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 <private/qtqmlglobal_p.h> +#include <QUrl> + +QT_BEGIN_NAMESPACE + +#ifdef QT_NO_QML_DEBUGGER + +#define QML_MEMORY_SCOPE_URL(url) +#define QML_MEMORY_SCOPE_STRING(s) + +#else + +class Q_QML_PRIVATE_EXPORT QQmlMemoryScope +{ +public: + explicit QQmlMemoryScope(const QUrl &url) + : pushed(false) + { + if (Q_UNLIKELY(openLibrary())) + init(url.path().toUtf8().constData()); + } + + explicit QQmlMemoryScope(const char *string) + : pushed(false) + { + if (Q_UNLIKELY(openLibrary())) + init(string); + } + + ~QQmlMemoryScope() + { + if (Q_UNLIKELY(pushed)) + done(); + } + + enum LibraryState + { + Unloaded, + Failed, + Loaded + }; + + static bool openLibrary() + { + if (Q_LIKELY(state == Loaded)) + return true; + if (state == Failed) + return false; + + return doOpenLibrary(); + } + +private: + Q_NEVER_INLINE void init(const char *string); + Q_NEVER_INLINE void done(); + Q_NEVER_INLINE static bool doOpenLibrary(); + + static LibraryState state; + + bool pushed; +}; + +class Q_QML_PRIVATE_EXPORT QQmlMemoryProfiler +{ +public: + static void enable(); + static void disable(); + static bool isEnabled(); + + static void clear(); + static void stats(int *allocCount, int *bytesAllocated); + static void save(const char *filename); +}; + +#define QML_MEMORY_SCOPE_URL(url) QQmlMemoryScope _qml_memory_scope(url) +#define QML_MEMORY_SCOPE_STRING(s) QQmlMemoryScope _qml_memory_scope(s) + +#endif + +QT_END_NAMESPACE +#endif // QQMLMEMORYPROFILER_H |