ocaml/otherlibs/unix/times.c

64 lines
2.0 KiB
C

/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* Automatique. Distributed only by permission. */
/* */
/***********************************************************************/
/* $Id$ */
#include <mlvalues.h>
#include <alloc.h>
#include <memory.h>
#include "unixsupport.h"
#include <time.h>
#include <sys/types.h>
#include <sys/times.h>
#ifndef CLK_TCK
#ifdef HZ
#define CLK_TCK HZ
#else
#define CLK_TCK 60
#endif
#endif
value unix_times_bytecode(void) /* ML */
{
value res;
struct tms buffer;
value u = Val_unit, s = Val_unit, cu = Val_unit, cs = Val_unit;
Begin_roots4 (u, s, cu, cs);
times(&buffer);
u = copy_double((double) buffer.tms_utime / CLK_TCK);
s = copy_double((double) buffer.tms_stime / CLK_TCK);
cu = copy_double((double) buffer.tms_cutime / CLK_TCK);
cs = copy_double((double) buffer.tms_cstime / CLK_TCK);
res = alloc_tuple(4);
Field (res, 0) = u;
Field (res, 1) = s;
Field (res, 2) = cu;
Field (res, 3) = cs;
End_roots();
return res;
}
value unix_times_native(void) /* ML */
{
value res;
struct tms buffer;
times(&buffer);
res = alloc(4 * Double_wosize, Double_array_tag);
Store_double_field(res, 0, (double) buffer.tms_utime / CLK_TCK);
Store_double_field(res, 1, (double) buffer.tms_stime / CLK_TCK);
Store_double_field(res, 2, (double) buffer.tms_cutime / CLK_TCK);
Store_double_field(res, 3, (double) buffer.tms_cstime / CLK_TCK);
return res;
}