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Diffstat (limited to 'src/qml/jsruntime/qv4profiling.cpp')
-rw-r--r-- | src/qml/jsruntime/qv4profiling.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4profiling.cpp b/src/qml/jsruntime/qv4profiling.cpp new file mode 100644 index 0000000000..69efbfdee3 --- /dev/null +++ b/src/qml/jsruntime/qv4profiling.cpp @@ -0,0 +1,101 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qv4profiling_p.h" + +QT_BEGIN_NAMESPACE + +using namespace QV4; +using namespace QV4::Profiling; + +FunctionCallProperties FunctionCall::resolve() const +{ + FunctionCallProperties props = { + m_start, + m_end, + m_function->name.toQString(), + m_function->compilationUnit->fileName(), + m_function->compiledFunction->location.line, + m_function->compiledFunction->location.column + }; + return props; +} + + +Profiler::Profiler() : enabled(false) +{ + static int metatype = qRegisterMetaType<QList<QV4::Profiling::FunctionCallProperties> >(); + Q_UNUSED(metatype); + m_timer.start(); +} + +struct FunctionCallComparator { + bool operator()(const FunctionCallProperties &p1, const FunctionCallProperties &p2) + { return p1.start < p2.start; } +}; + +void Profiler::stopProfiling() +{ + enabled = false; + reportData(); +} + +void Profiler::reportData() +{ + QList<FunctionCallProperties> resolved; + resolved.reserve(m_data.size()); + FunctionCallComparator comp; + foreach (const FunctionCall &call, m_data) { + FunctionCallProperties props = call.resolve(); + resolved.insert(std::upper_bound(resolved.begin(), resolved.end(), props, comp), props); + } + emit dataReady(resolved); +} + +void Profiler::startProfiling() +{ + if (!enabled) { + m_data.clear(); + enabled = true; + } +} + +QT_END_NAMESPACE |