clock.c

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/*

  Copyright (C) 2000, 2001 Silicon Graphics, Inc.  All Rights Reserved.

  This program is free software; you can redistribute it and/or modify it
  under the terms of version 2.1 of the GNU Lesser General Public License 
  as published by the Free Software Foundation.

  This program is distributed in the hope that it would be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

  Further, this software is distributed without any warranty that it is
  free of the rightful claim of any third person regarding infringement 
  or the like.  Any license provided herein, whether implied or 
  otherwise, applies only to this software file.  Patent licenses, if
  any, provided herein do not apply to combinations of this program with 
  other software, or any other product whatsoever.  

  You should have received a copy of the GNU Lesser General Public 
  License along with this program; if not, write the Free Software 
  Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, 
  USA.

  Contact information:  Silicon Graphics, Inc., 1600 Amphitheatre Pky,
  Mountain View, CA 94043, or:

  http://www.sgi.com

  For further information regarding this notice, see:

  http://oss.sgi.com/projects/GenInfo/NoticeExplan

*/


#pragma ident "@(#) libfi/element/clock.c       92.1    06/16/99 15:47:23"
#include <fortran.h> 
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>

/*
 *      CLOCK   Returns the current time in "HH:MM:SS" format.
 *              HH = Hour (0 - 23).
 *              MM = Minute (00 - 59).
 *              SS = Second (00 - 59).
 *
 *              May be called as either a function or a subroutine.
 *              If called as a subroutine, the parameter may be
 *              either CHARACTER or INTEGER type.
 */

/*
 *      Duplicate names
 *
 *      _CLOCK_         - for f90 
 *      CLOCK           - for PVP & MPP systems if called as a subroutine
 *      $CLOCK          - for cf77
 *      _CLOCK          - for f90 3.0? and previous on PVP systems 
 */

#if     !defined(__mips) && !defined(_LITTLE_ENDIAN)
#pragma _CRI duplicate _CLOCK_ as CLOCK
#pragma _CRI duplicate _CLOCK_ as $CLOCK
#pragma _CRI duplicate _CLOCK_ as _CLOCK
#endif

#define CLOCK_CHRS      8

#ifdef _UNICOS
_f_int
#else
void
#endif
_CLOCK_(timeofday)
_fcd    timeofday;
{
#ifdef  _UNICOS
        long            clock;
#endif
        struct tm       *sp;
        time_t          now;
        char            str[CLOCK_CHRS + 1];
 
        now     = time((time_t *) NULL);
        sp      = localtime(&now);

        (void) sprintf(str, "%02d:%02d:%02d", sp->tm_hour, sp->tm_min,
                        sp->tm_sec);


#ifdef  _UNICOS
        clock   = *(long *) str;

        if (_numargs() > 0) 
#ifdef  _isfcd
                if (! _isfcd(timeofday)) {      /* If Hollerith */
#elif   defined(_UNICOS) && defined(_ADDR64)
                if (_numargs() == 1) {          /* If Hollerith */
#endif
                        **(long **) &timeofday  = clock;
                }
                else
#endif  /* _UNICOS */
                {                               /* Fortran character */
                        unsigned int    len;
                        char            *cp;

                        cp      = _fcdtocp(timeofday);
                        len     = _fcdlen (timeofday);

                        (void) strncpy(cp, str, len);

                        if (len > CLOCK_CHRS)
                                (void) memset(cp + CLOCK_CHRS, (_f_int) ' ',
                                                len - CLOCK_CHRS);
                }

#ifdef  _UNICOS
        return ( (_f_int) clock );
#endif

}