projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 514c97d3 DD |
1 | /* Basic struct timeval utilities. |
| 2 | Copyright (C) 2011 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of the libiberty library. | |
| 5 | Libiberty is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Library General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | Libiberty is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Library General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Library General Public | |
| 16 | License along with libiberty; see the file COPYING.LIB. If not, | |
| 17 | write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, | |
| 18 | Boston, MA 02110-1301, USA. */ | |
| 19 | ||
| 20 | #include "config.h" | |
| 21 | ||
| 22 | /* On some systems (such as WindISS), you must include <sys/types.h> | |
| 23 | to get the definition of "time_t" before you include <time.h>. */ | |
| 24 | #include <sys/types.h> | |
| 25 | ||
| 26 | #ifdef TIME_WITH_SYS_TIME | |
| 27 | # include <sys/time.h> | |
| 28 | # include <time.h> | |
| 29 | #else | |
| 30 | # if HAVE_SYS_TIME_H | |
| 31 | # include <sys/time.h> | |
| 32 | # else | |
| 33 | # ifdef HAVE_TIME_H | |
| 34 | # include <time.h> | |
| 35 | # endif | |
| 36 | # endif | |
| 37 | #endif | |
| 38 | ||
| 39 | #include "timeval-utils.h" | |
| 40 | ||
| 41 | /* | |
| 42 | ||
| 43 | @deftypefn Extension void timeval_add (struct timeval *@var{a}, @ | |
| 44 | struct timeval *@var{b}, struct timeval *@var{result}) | |
| 45 | ||
| 46 | Adds @var{a} to @var{b} and stores the result in @var{result}. | |
| 47 | ||
| 48 | @end deftypefn | |
| 49 | ||
| 50 | */ | |
| 51 | ||
| 52 | void | |
| 53 | timeval_add (struct timeval *result, | |
| 54 | const struct timeval *a, const struct timeval *b) | |
| 55 | { | |
| 56 | result->tv_sec = a->tv_sec + b->tv_sec; | |
| 57 | result->tv_usec = a->tv_usec + b->tv_usec; | |
| 58 | if (result->tv_usec >= 1000000) | |
| 59 | { | |
| 60 | ++result->tv_sec; | |
| 61 | result->tv_usec -= 1000000; | |
| 62 | } | |
| 63 | } | |
| 64 | ||
| 65 | /* | |
| 66 | ||
| 67 | @deftypefn Extension void timeval_sub (struct timeval *@var{a}, @ | |
| 68 | struct timeval *@var{b}, struct timeval *@var{result}) | |
| 69 | ||
| 70 | Subtracts @var{b} from @var{a} and stores the result in @var{result}. | |
| 71 | ||
| 72 | @end deftypefn | |
| 73 | ||
| 74 | */ | |
| 75 | ||
| 76 | void | |
| 77 | timeval_sub (struct timeval *result, | |
| 78 | const struct timeval *a, const struct timeval *b) | |
| 79 | { | |
| 80 | result->tv_sec = a->tv_sec - b->tv_sec; | |
| 81 | result->tv_usec = a->tv_usec - b->tv_usec; | |
| 82 | if (result->tv_usec < 0) | |
| 83 | { | |
| 84 | --result->tv_sec; | |
| 85 | result->tv_usec += 1000000; | |
| 86 | } | |
| 87 | } |