mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-11-22 06:21:45 +03:00
72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/*
|
|
* Copyright 2016 Vincent Sanders <vince@netsurf-browser.org>
|
|
*
|
|
* This file is part of NetSurf, http://www.netsurf-browser.org/
|
|
*
|
|
* NetSurf is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* NetSurf 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* BSD style timeval macros
|
|
*
|
|
* BSD added macros for manipulating timeval which have become standard on
|
|
* modern c libraries but for compatability where they are missing it is
|
|
* necessary to provide fallbacks.
|
|
*/
|
|
|
|
#ifndef NETSURF_UTILS_SYS_TIME_H_
|
|
#define NETSURF_UTILS_SYS_TIME_H_
|
|
|
|
#include <sys/time.h>
|
|
|
|
#ifndef timerclear
|
|
#define timerclear(a) ((a)->tv_sec = (a)->tv_usec = 0)
|
|
#endif
|
|
|
|
#ifndef timerisset
|
|
#define timerisset(a) ((a)->tv_sec || (a)->tv_usec)
|
|
#endif
|
|
|
|
#ifndef timeradd
|
|
#define timeradd(a, aa, result) \
|
|
do { \
|
|
(result)->tv_sec = (a)->tv_sec + (aa)->tv_sec; \
|
|
(result)->tv_usec = (a)->tv_usec + (aa)->tv_usec; \
|
|
if ((result)->tv_usec >= 1000000) { \
|
|
++(result)->tv_sec; \
|
|
(result)->tv_usec -= 1000000; \
|
|
} \
|
|
} while (0)
|
|
#endif
|
|
|
|
#ifndef timersub
|
|
#define timersub(a, aa, result) \
|
|
do { \
|
|
(result)->tv_sec = (a)->tv_sec - (aa)->tv_sec; \
|
|
(result)->tv_usec = (a)->tv_usec - (aa)->tv_usec; \
|
|
if ((result)->tv_usec < 0) { \
|
|
--(result)->tv_sec; \
|
|
(result)->tv_usec += 1000000; \
|
|
} \
|
|
} while (0)
|
|
#endif
|
|
|
|
#ifndef timercmp
|
|
#define timercmp(a, aa, cmp) \
|
|
(((a)->tv_sec cmp (aa)->tv_sec) || \
|
|
((a)->tv_sec == (aa)->tv_sec && (a)->tv_usec cmp (aa)->tv_usec))
|
|
#endif
|
|
|
|
#endif
|