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Be more careful/explicit with FP rounding when converting floating time

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to timeval. Also, don't truncate the seconds part to int for y2038.

I've had this patch sitting around since 2010 and I completely forget
what motivated it.
This commit is contained in:
dholland 2016-08-27 18:48:30 +00:00
parent 7ec563f68a
commit 0ca1e3e00e
1 changed files with 6 additions and 2 deletions
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8
external/bsd/top/dist/utils.c vendored
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@ -41,6 +41,7 @@
#include "os.h"
#include <ctype.h>
#include <math.h>
#ifdef HAVE_STDARG_H
#include <stdarg.h>
#else
@ -711,8 +712,11 @@ diff_per_second(unsigned int x, unsigned int y)
void
double2tv(struct timeval *tv, double d)
{
tv->tv_sec = (int)d;
tv->tv_usec = (d - tv->tv_sec) * 1000000;
double di;
di = floor(d);
tv->tv_sec = (time_t)di;
tv->tv_usec = (int)ceil((d - di) * 1000000.0);
}
static int debug_on = 0;