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/* posixtime.h -- wrapper for time.h, sys/times.h mess. */
/* Copyright (C) 1999-2021 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash 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, either version 3 of the License, or
(at your option) any later version.
Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _POSIXTIME_H_
#define _POSIXTIME_H_
/* include this after config.h */
/* Some systems require this, mostly for the definition of `struct timezone'.
For example, Dynix/ptx has that definition in <time.h> rather than
sys/time.h */
#if defined (HAVE_SYS_TIME_H)
# include <sys/time.h>
#endif
#include <time.h>
#if !defined (HAVE_SYSCONF) || !defined (_SC_CLK_TCK)
# if !defined (CLK_TCK)
# if defined (HZ)
# define CLK_TCK HZ
# else
# define CLK_TCK 60 /* 60HZ */
# endif
# endif /* !CLK_TCK */
#endif /* !HAVE_SYSCONF && !_SC_CLK_TCK */
#if !HAVE_TIMEVAL
struct timeval
{
time_t tv_sec;
long int tv_usec;
};
#endif
#if !HAVE_GETTIMEOFDAY
extern int gettimeofday PARAMS((struct timeval *, void *));
#endif
/* These exist on BSD systems, at least. */
#if !defined (timerclear)
# define timerclear(tvp) do { (tvp)->tv_sec = 0; (tvp)->tv_usec = 0; } while (0)
#endif
#if !defined (timerisset)
# define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
#endif
#if !defined (timercmp)
# define timercmp(a, b, CMP) \
(((a)->tv_sec == (b)->tv_sec) ? ((a)->tv_usec CMP (b)->tv_usec) \
: ((a)->tv_sec CMP (b)->tv_sec))
#endif
/* These are non-standard. */
#if !defined (timerisunset)
# define timerisunset(tvp) ((tvp)->tv_sec == 0 && (tvp)->tv_usec == 0)
#endif
#if !defined (timerset)
# define timerset(tvp, s, u) do { tvp->tv_sec = s; tvp->tv_usec = u; } while (0)
#endif
#ifndef TIMEVAL_TO_TIMESPEC
# define TIMEVAL_TO_TIMESPEC(tv, ts) \
do { \
(ts)->tv_sec = (tv)->tv_sec; \
(ts)->tv_nsec = (tv)->tv_usec * 1000; \
} while (0)
#endif
#endif /* _POSIXTIME_H_ */
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