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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QDebug>
#include <QLocalSocket>
#include <QJsonDocument>
#include <QtEndian>
#include "qsocketprocessbackendfactory.h"
QT_BEGIN_NAMESPACE_PROCESSMANAGER
/*!
\class QSocketProcessBackendFactory
\brief The QSocketProcessBackendFactory class creates QRemoteProcessBackend objects
\inmodule QtProcessManager
The QSocketProcessBackendFactory connects over a Unix local socket to
an already-running "launcher" server.
*/
/*!
\property QSocketProcessBackendFactory::socketName
The name of the Unix local socket that this factory should connect to.
*/
/*!
Construct a QSocketProcessBackendFactory with optional \a parent.
*/
QSocketProcessBackendFactory::QSocketProcessBackendFactory(QObject *parent)
: QRemoteProcessBackendFactory(parent)
{
m_socket = new QLocalSocket(this);
connect(m_socket, SIGNAL(connected()), SLOT(connected()));
connect(m_socket, SIGNAL(disconnected()), SLOT(disconnected()));
connect(m_socket, SIGNAL(readyRead()), SLOT(readyRead()));
}
/*!
Destroy this and child objects.
*/
QSocketProcessBackendFactory::~QSocketProcessBackendFactory()
{
}
/*!
The QSocketProcessBackendFactory can only match if it has a valid
connection to the socket. The \a info parameter is passed to the
standard matching algorithm.
*/
bool QSocketProcessBackendFactory::canCreate(const QProcessInfo& info) const
{
return m_socket->isValid() && QRemoteProcessBackendFactory::canCreate(info);
}
/*!
Returns the current socket name. An empty string indicates that no socket has been set.
*/
QString QSocketProcessBackendFactory::socketName() const
{
return m_socket->serverName();
}
/*!
Set the socket name and connect to the server. If the connection fails,
you will not be notified, but the socketName() function will return null.
*/
void QSocketProcessBackendFactory::setSocketName(const QString& socketname)
{
if (socketname != m_socket->serverName()) {
m_socket->abort();
m_socket->connectToServer(socketname);
emit socketNameChanged();
}
}
/*!
Read data from the socket
*/
void QSocketProcessBackendFactory::readyRead()
{
m_buffer.append(m_socket->readAll());
while (m_buffer.size() >= 12) { // QJsonDocuments are at least this large
qint32 message_size = qFromLittleEndian(((qint32 *)m_buffer.data())[2]) + 8;
if (m_buffer.size() < message_size)
break;
QByteArray msg = m_buffer.left(message_size);
m_buffer = m_buffer.mid(message_size);
receive(QJsonDocument::fromBinaryData(msg).object());
}
}
/*!
\internal
*/
void QSocketProcessBackendFactory::connected()
{
handleConnected();
}
/*!
\internal
*/
void QSocketProcessBackendFactory::disconnected()
{
qWarning("Launcher process socket disconnected");
}
/*!
\internal
*/
bool QSocketProcessBackendFactory::send(const QJsonObject& message)
{
return (m_socket->isValid() &&
m_socket->write(QJsonDocument(message).toBinaryData()) != -1);
}
/*!
\fn void QSocketProcessBackendFactory::socketNameChanged()
Signal emitted when the socket name has been changed
*/
#include "moc_qsocketprocessbackendfactory.cpp"
QT_END_NAMESPACE_PROCESSMANAGER
|
