| /* Basic struct timeval utilities. |
| Copyright (C) 2011-2022 Free Software Foundation, Inc. |
| |
| This file is part of the libiberty library. |
| Libiberty is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| Libiberty is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with libiberty; see the file COPYING.LIB. If not, |
| write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #include "config.h" |
| |
| /* On some systems (such as WindISS), you must include <sys/types.h> |
| to get the definition of "time_t" before you include <time.h>. */ |
| #include <sys/types.h> |
| |
| #ifdef TIME_WITH_SYS_TIME |
| # include <sys/time.h> |
| # include <time.h> |
| #else |
| # if HAVE_SYS_TIME_H |
| # include <sys/time.h> |
| # else |
| # ifdef HAVE_TIME_H |
| # include <time.h> |
| # endif |
| # endif |
| #endif |
| |
| #include "timeval-utils.h" |
| |
| /* |
| |
| @deftypefn Extension void timeval_add (struct timeval *@var{a}, @ |
| struct timeval *@var{b}, struct timeval *@var{result}) |
| |
| Adds @var{a} to @var{b} and stores the result in @var{result}. |
| |
| @end deftypefn |
| |
| */ |
| |
| void |
| timeval_add (struct timeval *result, |
| const struct timeval *a, const struct timeval *b) |
| { |
| result->tv_sec = a->tv_sec + b->tv_sec; |
| result->tv_usec = a->tv_usec + b->tv_usec; |
| if (result->tv_usec >= 1000000) |
| { |
| ++result->tv_sec; |
| result->tv_usec -= 1000000; |
| } |
| } |
| |
| /* |
| |
| @deftypefn Extension void timeval_sub (struct timeval *@var{a}, @ |
| struct timeval *@var{b}, struct timeval *@var{result}) |
| |
| Subtracts @var{b} from @var{a} and stores the result in @var{result}. |
| |
| @end deftypefn |
| |
| */ |
| |
| void |
| timeval_sub (struct timeval *result, |
| const struct timeval *a, const struct timeval *b) |
| { |
| result->tv_sec = a->tv_sec - b->tv_sec; |
| result->tv_usec = a->tv_usec - b->tv_usec; |
| if (result->tv_usec < 0) |
| { |
| --result->tv_sec; |
| result->tv_usec += 1000000; |
| } |
| } |