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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#include <caml/mlvalues.h>
#include <caml/alloc.h>
#include <caml/memory.h>
#include "caml/unixsupport.h"
#include <time.h>
#include <sys/types.h>
#include <sys/times.h>
#ifdef HAS_GETRUSAGE
#include <sys/time.h>
#include <sys/resource.h>
#endif
CAMLprim value caml_unix_times(value unit)
{
#ifdef HAS_GETRUSAGE
value res;
struct rusage ru;
res = caml_alloc_small(4 * Double_wosize, Double_array_tag);
getrusage (RUSAGE_SELF, &ru);
Store_double_flat_field(res, 0,
ru.ru_utime.tv_sec + ru.ru_utime.tv_usec / 1e6);
Store_double_flat_field(res, 1,
ru.ru_stime.tv_sec + ru.ru_stime.tv_usec / 1e6);
getrusage (RUSAGE_CHILDREN, &ru);
Store_double_flat_field(res, 2,
ru.ru_utime.tv_sec + ru.ru_utime.tv_usec / 1e6);
Store_double_flat_field(res, 3,
ru.ru_stime.tv_sec + ru.ru_stime.tv_usec / 1e6);
return res;
#else
#ifndef CLK_TCK
#ifdef HZ
#define CLK_TCK HZ
#else
#define CLK_TCK 60
#endif
#endif
value res;
struct tms buffer;
times(&buffer);
res = caml_alloc_small(4 * Double_wosize, Double_array_tag);
Store_double_flat_field(res, 0, (double) buffer.tms_utime / CLK_TCK);
Store_double_flat_field(res, 1, (double) buffer.tms_stime / CLK_TCK);
Store_double_flat_field(res, 2, (double) buffer.tms_cutime / CLK_TCK);
Store_double_flat_field(res, 3, (double) buffer.tms_cstime / CLK_TCK);
return res;
#endif
}
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