139 lines
3.3 KiB
C
139 lines
3.3 KiB
C
/* Implement timing-related runtime actions for CHILL.
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Copyright (C) 1992,1993 Free Software Foundation, Inc.
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Author: Wilfried Moser
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* As a special exception, if you link this library with other files,
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some of which are compiled with GCC, to produce an executable,
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this library does not by itself cause the resulting executable
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to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why
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the executable file might be covered by the GNU General Public License. */
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#include <time.h>
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#include "rtltypes.h"
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EXCEPTION (rangefail);
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#define SECOND_VALID 1
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#define MINUTE_VALID 2
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#define HOUR_VALID 4
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#define DAY_VALID 8
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#define MONTH_VALID 16
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#define YEAR_VALID 32
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extern void __cause_ex1 (char *ex, char *file, int lineno);
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#define CAUSE_RANGEFAIL __cause_ex1 ("rangefail", filename, lineno)
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/*
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* function _abstime
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*
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* parameters:
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* mask - mask of valid values
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* year
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* month
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* day
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* hour
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* minute
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* second
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*
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* returns:
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* unsigned long
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*
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* exceptions:
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* rangefail
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*
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* abstract:
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* perform the ABSTIME builtin call
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*
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*/
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unsigned long
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_abstime (mask, year, month, day, hour, minute, second,
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filename, lineno)
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int mask, year, month, day, hour, minute, second;
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char *filename;
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int lineno;
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{
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struct tm *time_str;
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time_t result, current_time;
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/* first of all get current time */
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if ((current_time = time (0)) == (time_t)-1)
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/* FIXME: what excpetion ?? */
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CAUSE_RANGEFAIL;
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/* if we just have to determine the current time, we are ready.
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This is shown by mask == 0. */
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if (mask == 0)
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return (unsigned long)current_time;
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/* convert current time to struct tm */
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time_str = localtime (¤t_time);
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if (mask & YEAR_VALID)
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{
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if (year < 1900)
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CAUSE_RANGEFAIL;
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time_str->tm_year = year - 1900;
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}
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if (mask & MONTH_VALID)
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{
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if (month < 1 || month > 12)
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CAUSE_RANGEFAIL;
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time_str->tm_mon = month - 1;
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}
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if (mask & DAY_VALID)
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{
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if (day < 1 || day > 31)
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CAUSE_RANGEFAIL;
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time_str->tm_mday = day;
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}
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if (mask & HOUR_VALID)
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{
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if (hour < 0 || hour > 23)
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CAUSE_RANGEFAIL;
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time_str->tm_hour = hour;
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}
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if (mask & MINUTE_VALID)
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{
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if (minute < 0 || minute > 59)
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CAUSE_RANGEFAIL;
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time_str->tm_min = minute;
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}
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if (mask & SECOND_VALID)
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{
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if (second < 0 || second > 59)
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CAUSE_RANGEFAIL;
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time_str->tm_sec = second;
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}
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/* do it */
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time_str->tm_isdst = -1;
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if ((result = mktime (time_str)) == (time_t)-1)
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CAUSE_RANGEFAIL;
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return (unsigned long)result;
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}
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