reactos/sdk/tools/mkisofs/schilytools/include/schily/time.h

165 lines
3.6 KiB
C
Raw Normal View History

/* @(#)time.h 1.20 13/10/01 Copyright 1996-2013 J. Schilling */
/*
* Generic header for users of time(), gettimeofday() ...
*
* It includes definitions for time_t, struct timeval, ...
*
* Copyright (c) 1996-2013 J. Schilling
*/
/*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* See the file CDDL.Schily.txt in this distribution for details.
* A copy of the CDDL is also available via the Internet at
* http://www.opensource.org/licenses/cddl1.txt
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file CDDL.Schily.txt from this distribution.
*/
#ifndef _SCHILY_TIME_H
#define _SCHILY_TIME_H
#ifndef _SCHILY_MCONFIG_H
#include <schily/mconfig.h>
#endif
#ifndef _SCHILY_TYPES_H
#include <schily/types.h> /* Needed for time_t */
#endif
#ifdef TIME_WITH_SYS_TIME
# ifndef _INCL_SYS_TIME_H
# include <sys/time.h>
# define _INCL_SYS_TIME_H
# endif
# ifndef _INCL_TIME_H
# include <time.h>
# define _INCL_TIME_H
# endif
#else
#ifdef HAVE_SYS_TIME_H
# ifndef _INCL_SYS_TIME_H
# include <sys/time.h>
# define _INCL_SYS_TIME_H
# endif
#else
# ifndef _INCL_TIME_H
# include <time.h>
# define _INCL_TIME_H
# endif
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifdef timerclear
/*
* With MSVC timerclear / struct timeval present in case that
* winsock2.h has been included before.
*/
#undef HAVE_STRUCT_TIMEVAL
#define HAVE_STRUCT_TIMEVAL 1
#endif
#ifndef HAVE_STRUCT_TIMEVAL
struct timeval {
long tv_sec;
long tv_usec;
};
#endif
#ifndef HAVE_STRUCT_TIMEZONE
struct timezone {
int tz_minuteswest;
int tz_dsttime;
};
#endif
#ifndef HAVE_STRUCT_TIMESPEC
struct timespec {
time_t tv_sec;
long tv_nsec;
};
#endif
#undef timerclear
#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
#undef timerfix
#define timerfix1(tvp) while ((tvp)->tv_usec < 0) { \
(tvp)->tv_sec--; \
(tvp)->tv_usec += 1000000; \
}
#define timerfix2(tvp) while ((tvp)->tv_usec > 1000000) { \
(tvp)->tv_sec++; \
(tvp)->tv_usec -= 1000000; \
}
#define timerfix(tvp) do { timerfix1(tvp); timerfix2(tvp); } while (0)
/*
* timersub() and timeradd() are defined on FreeBSD with a different
* interface (3 parameters).
*/
#undef timersub
#define timersub(tvp1, tvp2) do { \
(tvp1)->tv_sec -= (tvp2)->tv_sec; \
(tvp1)->tv_usec -= (tvp2)->tv_usec; \
timerfix1(tvp1); timerfix2(tvp1); \
} while (0)
#undef timeradd
#define timeradd(tvp1, tvp2) do { \
(tvp1)->tv_sec += (tvp2)->tv_sec; \
(tvp1)->tv_usec += (tvp2)->tv_usec; \
timerfix1(tvp1); timerfix2(tvp1); \
} while (0)
#undef timespecclear
#define timespecclear(tsp) (tsp)->tv_sec = (tsp)->tv_nsec = 0
#undef timespecfix
#define timespecfix1(tsp) while ((tsp)->tv_nsec < 0) { \
(tsp)->tv_sec--; \
(tsp)->tv_nsec += 1000000000; \
}
#define timespecfix2(tsp) while ((tsp)->tv_nsec > 1000000000) { \
(tsp)->tv_sec++; \
(tsp)->tv_nsec -= 1000000000; \
}
#define timespecfix(tsp) do { timespecfix1(tsp); timespecfix2(tsp); } while (0)
#undef timespecsub
#define timespecsub(tsp1, tsp2) do { \
(tsp1)->tv_sec -= (tsp2)->tv_sec; \
(tsp1)->tv_nsec -= (tsp2)->tv_nsec; \
timespecfix1(tsp1); timespecfix2(tsp1); \
} while (0)
#undef timespecadd
#define timespecadd(tsp1, tsp2) do { \
(tsp1)->tv_sec += (tsp2)->tv_sec; \
(tsp1)->tv_nsec += (tsp2)->tv_nsec; \
timespecfix1(tsp1); timespecfix2(tsp1); \
} while (0)
#ifdef __cplusplus
}
#endif
#endif /* _SCHILY_TIME_H */