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Store sec and usec in terms of usec

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Rather than attempt to convert usec to sec with division, add both
together and then divide.

This reduced the rounding errors on my system.
This commit is contained in:
ed neville 2023-03-29 18:19:36 +01:00 committed by Craig Small
parent 29f06ff8e7
commit 4a315c9230
1 changed files with 2 additions and 2 deletions
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4
src/uptime.c
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@ -44,12 +44,12 @@ static void print_uptime_since()
/* Get the current time and convert it to a double */ /* Get the current time and convert it to a double */
if (gettimeofday(&tim, NULL) != 0) if (gettimeofday(&tim, NULL) != 0)
xerr(EXIT_FAILURE, "gettimeofday"); xerr(EXIT_FAILURE, "gettimeofday");
now = tim.tv_sec + (tim.tv_usec / 1000000.0); now = (tim.tv_sec * 1000000.0) + tim.tv_usec;
/* Get the uptime and calculate when that was */ /* Get the uptime and calculate when that was */
if (procps_uptime(&uptime_secs, &idle_secs) < 0) if (procps_uptime(&uptime_secs, &idle_secs) < 0)
xerr(EXIT_FAILURE, _("Cannot get system uptime")); xerr(EXIT_FAILURE, _("Cannot get system uptime"));
up_since_secs = (time_t) ((now - uptime_secs) + 0.5); up_since_secs = (time_t) ((now/1000000.0) - uptime_secs);
/* Show this */ /* Show this */
if ((up_since = localtime(&up_since_secs)) == NULL) if ((up_since = localtime(&up_since_secs)) == NULL)