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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
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdebugmessageservice.h"
#include "qqmldebugpacket.h"
#include <private/qqmldebugconnector_p.h>
QT_BEGIN_NAMESPACE
void DebugMessageHandler(QtMsgType type, const QMessageLogContext &ctxt,
const QString &buf)
{
QQmlDebugConnector::service<QDebugMessageServiceImpl>()->sendDebugMessage(type, ctxt, buf);
}
QDebugMessageServiceImpl::QDebugMessageServiceImpl(QObject *parent) :
QDebugMessageService(2, parent), oldMsgHandler(0),
prevState(QQmlDebugService::NotConnected)
{
// don't execute stateChanged() in parallel
QMutexLocker lock(&initMutex);
timer.start();
if (state() == Enabled) {
oldMsgHandler = qInstallMessageHandler(DebugMessageHandler);
prevState = Enabled;
}
}
void QDebugMessageServiceImpl::sendDebugMessage(QtMsgType type,
const QMessageLogContext &ctxt,
const QString &buf)
{
//We do not want to alter the message handling mechanism
//We just eavesdrop and forward the messages to a port
//only if a client is connected to it.
QQmlDebugPacket ws;
ws << QByteArray("MESSAGE") << int(type) << buf.toUtf8();
ws << QByteArray(ctxt.file) << ctxt.line << QByteArray(ctxt.function);
ws << QByteArray(ctxt.category) << timer.nsecsElapsed();
emit messageToClient(name(), ws.data());
if (oldMsgHandler)
(*oldMsgHandler)(type, ctxt, buf);
}
void QDebugMessageServiceImpl::stateChanged(State state)
{
QMutexLocker lock(&initMutex);
if (state != Enabled && prevState == Enabled) {
QtMessageHandler handler = qInstallMessageHandler(oldMsgHandler);
// has our handler been overwritten in between?
if (handler != DebugMessageHandler)
qInstallMessageHandler(handler);
} else if (state == Enabled && prevState != Enabled) {
oldMsgHandler = qInstallMessageHandler(DebugMessageHandler);
}
prevState = state;
}
void QDebugMessageServiceImpl::synchronizeTime(const QElapsedTimer &otherTimer)
{
QMutexLocker lock(&initMutex);
timer = otherTimer;
}
QT_END_NAMESPACE
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