79 lines
3.2 KiB
C
79 lines
3.2 KiB
C
/*
|
|
* Copyright (c) 2015 The TCPDUMP project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef netdissect_timeval_operations_h
|
|
#define netdissect_timeval_operations_h
|
|
|
|
/* Operations on timevals. */
|
|
|
|
#ifndef _MICRO_PER_SEC
|
|
#define _MICRO_PER_SEC 1000000
|
|
#endif
|
|
|
|
#ifndef _NANO_PER_SEC
|
|
#define _NANO_PER_SEC 1000000000
|
|
#endif
|
|
|
|
#define netdissect_timevalclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0)
|
|
|
|
#define netdissect_timevalisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
|
|
|
|
#define netdissect_timevalcmp(tvp, uvp, cmp) \
|
|
(((tvp)->tv_sec == (uvp)->tv_sec) ? \
|
|
((tvp)->tv_usec cmp (uvp)->tv_usec) : \
|
|
((tvp)->tv_sec cmp (uvp)->tv_sec))
|
|
|
|
#define netdissect_timevaladd(tvp, uvp, vvp, nano_prec) \
|
|
do { \
|
|
(vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
|
|
(vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
|
|
if (nano_prec) { \
|
|
if ((vvp)->tv_usec >= _NANO_PER_SEC) { \
|
|
(vvp)->tv_sec++; \
|
|
(vvp)->tv_usec -= _NANO_PER_SEC; \
|
|
} \
|
|
} else { \
|
|
if ((vvp)->tv_usec >= _MICRO_PER_SEC) { \
|
|
(vvp)->tv_sec++; \
|
|
(vvp)->tv_usec -= _MICRO_PER_SEC; \
|
|
} \
|
|
} \
|
|
} while (0)
|
|
|
|
#define netdissect_timevalsub(tvp, uvp, vvp, nano_prec) \
|
|
do { \
|
|
(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
|
|
(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
|
|
if ((vvp)->tv_usec < 0) { \
|
|
(vvp)->tv_sec--; \
|
|
(vvp)->tv_usec += (nano_prec ? _NANO_PER_SEC : \
|
|
_MICRO_PER_SEC); \
|
|
} \
|
|
} while (0)
|
|
|
|
#endif /* netdissect_timeval_operations_h */
|