/* This file contains subroutines to deal with time */
#include <stdio.h>
#include <types.h>
#include <time.h>
#include <timeb.h>

/* First, copy a timeb structure */
int timecopy(struct timeb src, struct timeb *dest)
{
	dest->time = src.time;
	dest->millitm = src.millitm;
	dest->timezone = src.timezone;
	dest->dstflag = src.dstflag;
}

/* Calculate the difference in time between two time structures */
int timesub(struct timeb first, struct timeb second, struct timeb *dest)
{
	dest->timezone = first.timezone;
	dest->dstflag = first.dstflag;

	dest->millitm = first.millitm - second.millitm;
	dest->time = first.time - second.time;

	while( dest->millitm < 0 ) {
		dest->millitm += 1000;
		dest->time -= 1;
	}
	
	while( dest->millitm > 1000 ) {
		dest->millitm -= 1000;
		dest->time += 1;
	}
}	

/* The double precision number of seconds in a time. */
double timesize( struct timeb a) 
{
	return ( ( (double) a.time) + 0.001 * a.millitm );
}

int timeprint(struct timeb a)
{
	printf("Time: %ld  %d\n",a.time, a.millitm);
	fflush(stdout);
}