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timeval-utils.h: New file.

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include/
	* timeval-utils.h: New file.

	libiberty/
	* timeval-utils.c: New file.
	* Makefile.in (CFILES): Add it.
	(REQUIRED_OFILES): Add timeval-utils.$(objext).
	(INSTALLED_HEADERS): Add timeval-utils.h.
	(timeval-utils.$(objext)): Add rule.

From-SVN: r179319
This commit is contained in:
Doug Evans 2011-09-28 19:09:50 +00:00 committed by Doug Evans
parent be50fcea4e
commit 8c850a5a7f
4 changed files with 135 additions and 0 deletions
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2
include/ChangeLog
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@ -1,5 +1,7 @@
2011-09-28 Doug Evans <dje@google.com>
* timeval-utils.h: New file.
* libiberty.h (countargv): Declare.
2011-09-26 Cary Coutant <ccoutant@google.com>

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include/timeval-utils.h Normal file
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/* Basic struct timeval utilities.
Copyright (C) 2011 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. */
#ifndef TIMEVAL_UTILS_H
#define TIMEVAL_UTILS_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* forward decl */
struct timeval;
extern void timeval_add (struct timeval *result,
const struct timeval *a, const struct timeval *b);
extern void timeval_sub (struct timeval *result,
const struct timeval *a, const struct timeval *b);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* TIMEVAL_UTILS_H */

6
libiberty/ChangeLog
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@ -1,5 +1,11 @@
2011-09-28 Doug Evans <dje@google.com>
* timeval-utils.c: New file.
* Makefile.in (CFILES): Add it.
(REQUIRED_OFILES): Add timeval-utils.$(objext).
(INSTALLED_HEADERS): Add timeval-utils.h.
(timeval-utils.$(objext)): Add rule.
* argv.c (countargv): New function.
2011-09-23 Cary Coutant <ccoutant@google.com>

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libiberty/timeval-utils.c Normal file
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/* Basic struct timeval utilities.
Copyright (C) 2011 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;
}
}