passthrucanio.h - mozsearch

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// Copyright (C) 2017 Ford Motor Company.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#ifndef PASSTHRUCAN_PASSTHRUCANIO_H

#define PASSTHRUCAN_PASSTHRUCANIO_H

#include "j2534passthru.h"

#include <QtSerialBus/qcanbusdevice.h>

#include <QtSerialBus/qcanbusframe.h>

#include <QByteArray>

#include <QList>

#include <QMutex>

#include <QObject>

#include <QString>

#include <QTimer>

#include <QVariant>

QT_BEGIN_NAMESPACE

class PassThruCanIO : public QObject

    Q_OBJECT

    Q_DISABLE_COPY(PassThruCanIO)

public:

    static const uint pollTimeout = 100; // ms

    explicit PassThruCanIO(QObject *parent = nullptr);

    virtual ~PassThruCanIO();

    Q_INVOKABLE void open(const QString &library, const QByteArray &subDev, uint bitRate);

    Q_INVOKABLE void close();

    Q_INVOKABLE void applyConfig(QCanBusDevice::ConfigurationKey key, const QVariant &value);

    Q_INVOKABLE void listen();

    // Internally locked; safe to call directly from any thread.

    bool enqueueMessage(const QCanBusFrame &frame);

Q_SIGNALS:

    void errorOccurred(const QString &description, QCanBusDevice::CanBusError error);

    void messagesReceived(QList<QCanBusFrame> frames);

    void messagesSent(qint64 count);

    void openFinished(bool success);

    void closeFinished();

private:

    bool setMessageFilters(const QList<QCanBusDevice::Filter> &filters);

    bool setConfigValue(J2534::Config::Parameter param, ulong value);

    void pollForMessages();

    bool writeMessages();

    void readMessages(bool writePending);

    J2534::PassThru *       m_passThru      = nullptr;

    J2534::PassThru::Handle m_deviceId      = 0;

    J2534::PassThru::Handle m_channelId     = 0;

    QTimer *                m_idleNotifier  = nullptr;

    QList<J2534::Message> m_ioBuffer;

    QMutex                  m_writeGuard;

    QList<QCanBusFrame>     m_writeQueue;

};

QT_END_NAMESPACE

#endif // PASSTHRUCAN_PASSTHRUCANIO_H