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/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/times.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#define import_kernel
#define import_knames
#define import_spp
#include <iraf.h>
/* ZGTIME -- Get the local standard (clock) time, in units of seconds
* since 00:00:00 01-Jan-80. Return the total cpu time consumed by the
* process (and any subprocesses), in units of milliseconds.
*/
int
ZGTIME (
XLONG *clock_time, /* seconds */
XLONG *cpu_time /* milliseconds */
)
{
struct tms t;
time_t gmt_to_lst(time_t gmt);
long cpu, clkfreq;
clkfreq = sysconf(_SC_CLK_TCK);
times (&t);
time_t now = 0;
char *source_date_epoch = getenv("SOURCE_DATE_EPOCH");
if (source_date_epoch) {
now = strtoull(source_date_epoch, NULL, 10);
}
if (now != 0) {
*clock_time = now - 315532800L; // seconds 1970 to 1980; assume UTC
} else {
*clock_time = gmt_to_lst (time(0));
}
/* We don't want any floating point in the kernel code so do the
* following computation using integer arithment, taking care to
* avoid integer overflow (unless unavoidable) or loss of precision.
*/
cpu = (t.tms_utime + t.tms_cutime);
if (cpu > MAX_LONG/1000)
*cpu_time = cpu / clkfreq * 1000;
else
*cpu_time = cpu * 1000 / clkfreq;
return (XOK);
}
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