/***********************************************************************/
/*                                                                     */
/*                           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>

static value alloc_tm(tm)
     struct tm * tm;
{
  value res;
  res = alloc_tuple(9);
  Field(res,0) = Val_int(tm->tm_sec);
  Field(res,1) = Val_int(tm->tm_min);
  Field(res,2) = Val_int(tm->tm_hour);
  Field(res,3) = Val_int(tm->tm_mday);
  Field(res,4) = Val_int(tm->tm_mon);
  Field(res,5) = Val_int(tm->tm_year);
  Field(res,6) = Val_int(tm->tm_wday);
  Field(res,7) = Val_int(tm->tm_yday);
  Field(res,8) = tm->tm_isdst ? Val_true : Val_false;
  return res;
}

value unix_gmtime(t)             /* ML */
     value t;
{
  time_t clock;
  clock = Long_val(t);
  return alloc_tm(gmtime(&clock));
}

value unix_localtime(t)          /* ML */
     value t;
{
  time_t clock;
  clock = Long_val(t);
  return alloc_tm(localtime(&clock));
}

#ifdef HAS_MKTIME

value unix_mktime(t)            /* ML */
     value t;
{
  struct tm tm;
  time_t clock;
  value res;
  Push_roots(r, 1);

  tm.tm_sec = Int_val(Field(t, 0));
  tm.tm_min = Int_val(Field(t, 1));
  tm.tm_hour = Int_val(Field(t, 2));
  tm.tm_mday = Int_val(Field(t, 3));
  tm.tm_mon = Int_val(Field(t, 4));
  tm.tm_year = Int_val(Field(t, 5));
  tm.tm_wday = Int_val(Field(t, 6));
  tm.tm_yday = Int_val(Field(t, 7));
  tm.tm_isdst = Bool_val(Field(t, 8));
  clock = mktime(&tm);
  r[0] = alloc_tm(&tm);
  res = alloc_tuple(2);
  Field(res, 0) = Val_long(clock);
  Field(res, 1) = r[0];
  Pop_roots();
  return res;
}

#else

value unix_mktime() { invalid_argument("mktime not implemented"); }

#endif