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amiga-clib2/library/include/sys/time.h
Olaf Barthel f3c4ee68cd - Broke down the tests for the __TIMEVAL_ALREADY_DEFINED and DEVICES_TIMER_H
symbols into two lines.


git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14721 87f5fb63-7c3d-0410-a384-fd976d0f7a62
2004-09-09 08:30:31 +00:00

142 lines
4.6 KiB
C

/*
* $Id: time.h,v 1.4 2004-09-09 08:30:31 obarthel Exp $
*
* :ts=4
*
* Portable ISO 'C' (1994) runtime library for the Amiga computer
* Copyright (c) 2002-2004 by Olaf Barthel <olsen@sourcery.han.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Neither the name of Olaf Barthel nor the names of contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 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 OWNER 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 _SYS_TIME_H
#define _SYS_TIME_H
/****************************************************************************/
/* The following is not part of the ISO 'C' (1994) standard. */
/****************************************************************************/
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/****************************************************************************/
/* This is a tough one. Some code takes a bad turn if the <exec/types.h>
header file is pulled in, which rules out that the structure definitions
in <devices/timer.h> are used. We are only interested in the timeval
structure and try to get by with this definition. Sometimes it works,
sometimes it doesn't. Not sure if there really is a good solution for
this problem... */
#ifndef __TIMEVAL_ALREADY_DEFINED
/****************************************************************************/
#ifndef DEVICES_TIMER_H
/****************************************************************************/
/* The V40 header files (OS 3.x) and below will always define the
'struct timeval' in <devices/timer.h>. But the V50 header
files and beyond will not define 'struct timeval' if it is
included from here. We start by checking which header files
are being used. */
#ifndef EXEC_TYPES_H
#include <exec/types.h>
#endif /* EXEC_TYPES_H */
/****************************************************************************/
/* Which header file version is being used? */
#if INCLUDE_VERSION < 50
/****************************************************************************/
/* This will define the 'struct timeval' */
#include <devices/timer.h>
/****************************************************************************/
#else
/****************************************************************************/
/* We will have to make our own... */
struct timeval
{
unsigned long tv_secs;
unsigned long tv_micro;
};
/* Make sure that the 'struct timeval' is not redefined, should
<devices/timer.h> get included again. */
#define __TIMEVAL_ALREADY_DEFINED
/****************************************************************************/
#endif /* INCLUDE_VERSION */
/****************************************************************************/
#ifndef tv_sec
#define tv_sec tv_secs
#endif /* tv_sec */
#ifndef tv_usec
#define tv_usec tv_micro
#endif /* tv_usec */
/****************************************************************************/
#endif /* DEVICES_TIMER_H */
/****************************************************************************/
#endif /* __TIMEVAL_ALREADY_DEFINED */
/****************************************************************************/
struct timezone
{
int tz_minuteswest; /* of Greenwich */
int tz_dsttime; /* type of dst correction to apply */
};
/****************************************************************************/
int gettimeofday(struct timeval *tp, struct timezone *tzp);
/****************************************************************************/
#ifdef __cplusplus
}
#endif /* __cplusplus */
/****************************************************************************/
#endif /* _SYS_TIME_H */