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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtAddOn.JsonStream module of the Qt.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef _JSON_BUFFER_H
#define _JSON_BUFFER_H
#include <QObject>
#include <QByteArray>
#include <QJsonObject>
#include <QMutex>
#include "qjsonstream-global.h"
class QMutexLocker;
QT_BEGIN_NAMESPACE_JSONSTREAM
class Q_ADDON_JSONSTREAM_EXPORT QJsonBuffer : public QObject
{
Q_OBJECT
public:
QJsonBuffer(QObject *parent=0);
void append(const QByteArray& data);
void append(const char* data, int len);
int copyFromFd(int fd);
void clear();
EncodingFormat format() const;
bool messageAvailable();
QJsonObject readMessage();
int size() const { return mBuffer.size(); }
inline bool isEnabled() const { return mEnabled; }
inline void setEnabled(bool enable) { mEnabled = enable; }
inline void setThreadProtection(bool enable) { mThreadProtection = enable; }
signals:
void readyReadMessage();
protected:
QMutexLocker *createLocker();
private:
void processMessages();
bool scanUtf(int c);
void resetParser();
QByteArray rawData(int _start, int _len) const;
private:
enum UTF8ParsingState { ParseNormal, ParseInString, ParseInBackslash };
EncodingFormat mFormat;
QByteArray mBuffer;
UTF8ParsingState mParserState;
int mParserDepth;
int mParserOffset;
int mParserStartOffset;
bool mEmittedReadyRead;
bool mMessageAvailable;
int mMessageSize;
bool mEnabled;
bool mThreadProtection;
QMutex mMutex;
};
inline QByteArray QJsonBuffer::rawData(int _start, int _len) const
{
return QByteArray::fromRawData(mBuffer.constData() + _start, _len);
}
QT_END_NAMESPACE_JSONSTREAM
#endif // _JSON_BUFFER_H
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