QtClientBackend.hpp

#ifndef H_EXTENSIONS_CUTEHMI_MODBUS_2_INCLUDE_CUTEHMI_MODBUS_INTERNAL_QTCLIENTBACKEND_HPP
#define H_EXTENSIONS_CUTEHMI_MODBUS_2_INCLUDE_CUTEHMI_MODBUS_INTERNAL_QTCLIENTBACKEND_HPP
 
#include "common.hpp"
#include "Config.hpp"
#include "AbstractClientBackend.hpp"
 
#include <memory>
 
#include <QModbusClient>
 
namespace cutehmi {
namespace modbus {
namespace internal {
 
class CUTEHMI_MODBUS_PRIVATE QtClientBackend:
    public AbstractClientBackend
{
        Q_OBJECT
 
    public slots:
        void ensureClosed();
 
    signals:
        void opened();
 
        void closed();
 
    protected:
        explicit QtClientBackend(std::unique_ptr<QModbusClient> qClient, QObject * parent = nullptr);
 
        virtual int slaveAddress() const = 0;
 
        virtual void configureConnection() = 0;
 
        QModbusClient * qClient() const;
 
        bool proceedRequest(QUuid requestId) override;
 
        void readCoils(QUuid requestId, quint16 startAddress, quint16 endAddress) override;
 
        void writeCoil(QUuid requestId, quint16 address, bool value) override;
 
        void writeMultipleCoils(QUuid requestId, quint16 startAddress, const QVector<quint16> & values) override;
 
        void readDiscreteInputs(QUuid requestId, quint16 startAddress, quint16 endAddress) override;
 
        void readHoldingRegisters(QUuid requestId, quint16 startAddress, quint16 endAddress) override;
 
        void writeHoldingRegister(QUuid requestId, quint16 address, quint16 value) override;
 
        void writeMultipleHoldingRegisters(QUuid requestId, quint16 startAddress, const QVector<quint16> & values) override;
 
        void readInputRegisters(QUuid requestId, quint16 startAddress, quint16 endAddress) override;
 
        void readExceptionStatus(QUuid requestId) override;
 
        void diagnostics(QUuid requestId, AbstractDevice::DiagnosticsSubfunction subfunction, quint16 data) override;
 
        void fetchCommEventCounter(QUuid requestId) override;
 
        void fetchCommEventLog(QUuid requestId) override;
 
        void reportSlaveId(QUuid requestId) override;
 
        void readFileRecord(QUuid requestId, quint8 byteCount, QJsonArray subrequests) override;
 
        void writeFileRecord(QUuid requestId, quint8 byteCount, QJsonArray subrequests) override;
 
        void maskWriteHoldingRegister(QUuid requestId, quint16 address, quint16 andMask, quint16 orMask) override;
 
        void readWriteMultipleHoldingRegisters(QUuid requestId, quint16 readStartAddress, quint16 readEndAddress, quint16 writeAddress, const QVector<quint16> & values) override;
 
        void readFIFOQueue(QUuid requestId, quint16 address) override;
 
    protected slots:
        void open() override;
 
        void close() override;
 
    private slots:
        void onStateChanged(QModbusDevice::State state);
 
        void onErrorOccurred(QModbusDevice::Error error);
 
        void printError(cutehmi::InplaceError error) const;
 
    private:
        void writeDataUnit(QUuid requestId, const QModbusDataUnit & unit);
 
        void readDataUnitInt(QUuid requestId, const QModbusDataUnit & unit);
 
        void readDataUnitBool(QUuid requestId, const QModbusDataUnit & unit);
 
        void prepareErrorReply(const QModbusReply & modbusReply, QJsonObject & reply);
 
        void pushByte(uchar byte, uchar *& destination);
 
        void pushWord(uint word, uchar *& destination);
 
        uchar pullByte(const uchar *& source);
 
        uint pullWord(const uchar *& source);
 
        struct Members
        {
            QModbusClient * qClient;
        };
 
        MPtr<Members> m;
};
 
}
}
}
 
#endif
 
//(c)C: Copyright © 2019, Michał Policht <michal@policht.pl>. All rights reserved.
//(c)C: This file is a part of CuteHMI.
//(c)C: CuteHMI is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
//(c)C: CuteHMI is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
//(c)C: You should have received a copy of the GNU Lesser General Public License along with CuteHMI.  If not, see <https://www.gnu.org/licenses/>.