TxLoop.h

#ifndef TXLOOP_H
#define TXLOOP_H
 
#include "TwoPhaseSignal.h"
#include "Varicode.h"
 
#include <QDateTime>
#include <QTimer>
 
class TxLoop : public TwoPhaseSignal {
    Q_OBJECT
 
  private:
    // Name, only used for logging:
    const QString m_name;
    // When do we need to start transmitting the next time?
    QDateTime m_next_activity;
    // How much tx_delay, in milliseconds, we need to be early.
    qint64 m_tx_delay_ms;
    // A timer that is supposed to wake us up when it is time.
    // This will be m_tx_delay_ms earlier than m_next_activity.
    QTimer m_next_activity_timer;
    // The currently active JS8 m_submode.
    Varicode::SubmodeType m_submode;
    // Whether this loop is active (or else does nothing).
    bool m_active;
    // The loop's period: After how many milliseconds to repeat sending.
    qint64 m_loop_period_ms;
 
  public:
    // Provide a "name" argument that can be used for logging.
    TxLoop(const QString &name);
 
    ~TxLoop();
 
    // The TX delay cannot be set to any value larger than this:
    static constexpr qint64 MAX_TX_DELAY_MS = 1000;
 
    inline bool isActive() const { return m_active; }

    inline const QDateTime &nextActivity() const { return m_next_activity; }

    inline qint64 period_ms() const { return m_loop_period_ms; }
 
  signals:
    void triggerTxNow() const;

    void nextActivityChanged(const QDateTime &) const;

    void canceled() const;
 
  public slots:
    void onPlumbingCompleted() const;
    void onDriftChange(qint64 new_drift);
    void onModeChange(Varicode::SubmodeType new_submode);
    void onTxDelayChange(qint64 tx_delay_ms);

    void onTxLoopPeriodChangeStart(qint64 loop_period_ms);

    void onLoopCancel();
 
  private slots:
    void onTimer();
};
 
#endif