GPSDeviceTransport.h

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#pragma once
 
#include <chrono>
#include <cstdint>
#include <functional>
#include <span>
 
#include <QtCore/QByteArrayView>
#include <QtCore/QDeadlineTimer>
#include <QtCore/QString>
 
#include "GPSTransport.h"
 
class QIODevice;
 
class GPSDeviceTransport : public GPSTransport
{
public:
    using GPSTransport::GPSTransport;
 
    GPSReadResult read(std::span<uint8_t> buffer, std::chrono::milliseconds timeout) override;
 
protected:
    virtual QIODevice* device() const = 0;
 
    virtual bool readUnavailable() const;
    virtual bool waitReadable(QDeadlineTimer deadline);
    virtual qint64 take(std::span<uint8_t> buffer);
    virtual GPSReadResult readFailure() const;
 
    GPSWriteResult writeData(QByteArrayView bytes, QDeadlineTimer deadline) override;
    virtual void waitWritten(QDeadlineTimer& deadline);
    virtual qint64 confirmedWritten(int accepted, qint64 drained);
    virtual void retire();
 
    bool waitUntil(const std::function<bool()>& done, QDeadlineTimer deadline);
    bool waitForDevice(const std::function<bool()>& ready, QDeadlineTimer deadline);
};