qt-creator/src/libs/qmldebug/qv8profilerclient.cpp

/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
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** GNU Lesser General Public License Usage
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** 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
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#include "qv8profilerclient.h"

namespace QmlDebug {

class QV8ProfilerClientPrivate {
public:
    QV8ProfilerClientPrivate(QV8ProfilerClient *_q)
        : q(_q)
        , recording(false)
    {
    }

    void sendRecordingStatus();

    QV8ProfilerClient *q;
    bool recording;
};

} // namespace QmlDebug

using namespace QmlDebug;

void QV8ProfilerClientPrivate::sendRecordingStatus()
{
    QByteArray ba;
    QDataStream stream(&ba, QIODevice::WriteOnly);
    QByteArray cmd("V8PROFILER");
    QByteArray option("");
    QByteArray title("");

    if (recording)
        option = "start";
    else
        option = "stop";
    stream << cmd << option << title;
    q->sendMessage(ba);
}

QV8ProfilerClient::QV8ProfilerClient(QmlDebugConnection *client)
    : QmlDebugClient(QLatin1String("V8Profiler"), client)
    , d(new QV8ProfilerClientPrivate(this))
{
}

QV8ProfilerClient::~QV8ProfilerClient()
{
    //Disable profiling if started by client
    //Profiling data will be lost!!
    if (isRecording())
        setRecording(false);
    delete d;
}

void QV8ProfilerClient::clearData()
{
    emit cleared();
}

bool QV8ProfilerClient::isEnabled() const
{
    return status() == Enabled;
}

void QV8ProfilerClient::sendRecordingStatus()
{
    d->sendRecordingStatus();
}

bool QV8ProfilerClient::isRecording() const
{
    return d->recording;
}

void QV8ProfilerClient::setRecording(bool v)
{
    if (v == d->recording)
        return;

    d->recording = v;

    if (status() == Enabled)
        sendRecordingStatus();

    emit recordingChanged(v);
}

void QV8ProfilerClient::setRecordingFromServer(bool v)
{
    if (v == d->recording)
        return;

    d->recording = v;

    emit recordingChanged(v);
}

void QV8ProfilerClient::statusChanged(ClientStatus /*status*/)
{
    emit enabledChanged();
}

void QV8ProfilerClient::messageReceived(const QByteArray &data)
{
    QByteArray rwData = data;
    QDataStream stream(&rwData, QIODevice::ReadOnly);

    int messageType;

    stream >> messageType;

    if (messageType == V8Complete) {
        setRecordingFromServer(false);
        emit complete();
    } else if (messageType == V8ProfilingStarted) {
        setRecordingFromServer(true);
    } else if (messageType == V8Entry) {
        QString filename;
        QString function;
        int lineNumber;
        double totalTime;
        double selfTime;
        int depth;

        stream  >> filename >> function >> lineNumber >> totalTime >> selfTime >> depth;
        emit this->v8range(depth, function, filename, lineNumber, totalTime, selfTime);
    }
}