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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtSerialBus module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMODBUSCLIENT_P_H
#define QMODBUSCLIENT_P_H
#include <QtSerialBus/qmodbusclient.h>
#include <QtSerialBus/private/qmodbusdevice_p.h>
#include <QtSerialBus/qmodbuspdu.h>
#include <QtCore/qtimer.h>
#include <QtCore/qdebug.h>
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
QT_BEGIN_NAMESPACE
class Q_AUTOTEST_EXPORT QModbusClientPrivate : public QModbusDevicePrivate
{
Q_DECLARE_PUBLIC(QModbusClient)
public:
QModbusClientPrivate() Q_DECL_EQ_DEFAULT;
virtual ~QModbusClientPrivate() Q_DECL_EQ_DEFAULT;
QModbusReply *sendRequest(const QModbusRequest &request, int serverAddress,
const QModbusDataUnit *const unit);
QModbusRequest createReadRequest(const QModbusDataUnit &data) const;
QModbusRequest createWriteRequest(const QModbusDataUnit &data) const;
QModbusRequest createRWRequest(const QModbusDataUnit &read, const QModbusDataUnit &write) const;
bool processResponse(const QModbusResponse &response, QModbusDataUnit *data);
bool processReadCoilsResponse(const QModbusResponse &response, QModbusDataUnit *data);
bool processReadDiscreteInputsResponse(const QModbusResponse &response, QModbusDataUnit *data);
bool processReadHoldingRegistersResponse(const QModbusResponse &response,
QModbusDataUnit *data);
bool processReadInputRegistersResponse(const QModbusResponse &response, QModbusDataUnit *data);
bool processWriteSingleCoilResponse(const QModbusResponse &response, QModbusDataUnit *data);
bool processWriteSingleRegisterResponse(const QModbusResponse &response,
QModbusDataUnit *data);
bool processWriteMultipleCoilsResponse(const QModbusResponse &response, QModbusDataUnit *data);
bool processWriteMultipleRegistersResponse(const QModbusResponse &response,
QModbusDataUnit *data);
bool processReadWriteMultipleRegistersResponse(const QModbusResponse &response,
QModbusDataUnit *data);
void startResponseTimer();
void stopResponseTimer();
virtual void handleResponseTimeout() {}
virtual QModbusReply *enqueueRequest(const QModbusRequest &, int, const QModbusDataUnit &,
QModbusReply::ReplyType) {
return Q_NULLPTR;
}
// TODO: Review once we have a transport layer in place.
virtual bool isOpen() const { return false; }
int m_responseTimeoutDuration = 200;
QTimer *m_responseTimer = Q_NULLPTR;
struct QueueElement {
QPointer<QModbusReply> reply;
QModbusRequest requestPdu;
QModbusDataUnit unit;
};
void processQueueElement(const QModbusResponse &pdu, const QueueElement &element);
};
QT_END_NAMESPACE
#endif // QMODBUSCLIENT_P_H
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