/*---------------------------------------------------------------
 * Copyright (c) 2017
 * Broadcom Corporation
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 * ________________________________________________________________
 *
 * isochronous.hpp
 * Suppport for isochonronous traffic testing
 *
 * by Robert J. McMahon (rjmcmahon@rjmcmahon.com, bob.mcmahon@broadcom.com)
 * -------------------------------------------------------------------
 */
#ifndef ISOCHRONOUS_H
#define ISOCHRONOUS_H

#include <time.h>
#include "Settings.hpp"
#include "Timestamp.hpp"

/* ------------------------------------------------------------------- */
namespace Isochronous {
    class FrameCounter {
    public :
        FrameCounter(double, const Timestamp& start);
        FrameCounter(double);
        ~FrameCounter();
	unsigned int get(void) const;
	unsigned int get(long *);
	unsigned int get(const Timestamp&) const;
	unsigned int period_us(void);
        unsigned int wait_tick(long *sched_err, bool sync_strict);
	unsigned int wait_sync(long sec, long usec);
	long getSecs(void);
	long getUsecs(void);
	void reset(void);
        Timestamp next_slot(void);
	unsigned int slip;
    private :
	double frequency;
	Timestamp startTime;
	Timestamp nextslotTime;
	unsigned int period;  // units microseconds or 100 ns
	unsigned int lastcounter;
	unsigned int slot_counter;
#ifdef WIN32
	int mySetWaitableTimer (long delay_time);
	HANDLE my_timer;	// Timer handle
	LARGE_INTEGER delay;    // units is 100 nanoseconds
#endif

    }; // end class FrameCounter
}
#endif // ISOCHRONOUS_H
