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/* @(#)time.h 1.14 06/09/13 Copyright 1996 J. Schilling */
/*
* Generic header for users of time(), gettimeofday() ...
*
* It includes definitions for time_t, struct timeval, ...
*
* Copyright (c) 1996 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.
*
* 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 _INCL_SYS_TYPES_H
#include <sys/types.h> /* Needed for time_t */
#define _INCL_SYS_TYPES_H
#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
#if defined(__CYGWIN32__) || defined(__EMX__) || defined(__linux__) || defined(__DJGPP__)
/*
* Cygnus defines struct timeval in sys/time.h but not timerclear
* timerclear is defined in windows32/Sockets.h ???
*
* EMX for OS/2 defines struct timeval in sys/time.h but not timerclear
*
* Linux defines struct timeval in sys/time.h but if __USE_BSD is not
* defined, timerclear is missing.
*/
#ifndef timerclear
#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
#endif
#endif
#ifndef timerclear
#ifndef VMS
struct timeval {
long tv_sec;
long tv_usec;
};
#endif
struct timezone {
int tz_minuteswest;
int tz_dsttime;
};
#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
#endif
#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)
#ifdef __cplusplus
}
#endif
#endif /* _SCHILY_TIME_H */
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