/*
 *   timestamp function - return cummulative time, time since last stamp
 */
#include <stdio.h>
#include <stdarg.h>
#include <time.h>

void timestamp(const char* desc, ...)
{
	static double starttime = 0, lasttime = 0;
	double curtime;
	timespec now;
	va_list	argp;

	timespec_get(&now, TIME_UTC);
	curtime = (double)now.tv_sec + (double)now.tv_nsec / 1000000000L;
	if (starttime) {
		printf("... %.3lf | %.3lf - ", curtime - starttime, curtime - lasttime);
		va_start(argp, desc);
		vprintf(desc, argp);
		va_end(argp);
		printf("\n");
	}
	else
		starttime = curtime;
	lasttime = curtime;
}