Satellite profiler for V4

Self-contained profiler for V4. By itself it doesn't have any
connections to qqmlprofilerservice.

Change-Id: I471a6119e07eab9c5f4712a16835be49c8886d1a
Reviewed-by: Kai Koehne <[email protected]>

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