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/*
* gettimeofday() - SVR4 and BSD4.3 extension required by Newlib
*
* COPYRIGHT (c) 1989-1998.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
#include <rtems.h>
#if !defined(RTEMS_UNIX)
#ifdef RTEMS_NEWLIB
#include <sys/reent.h>
#endif
#include <sys/time.h>
#include <time.h>
#include <errno.h>
#include <assert.h>
/*
* Seconds from January 1, 1970 to January 1, 1988. Used to account for
* differences between POSIX API and RTEMS core.
*/
#define POSIX_TIME_SECONDS_1970_THROUGH_1988 \
(((1987 - 1970 + 1) * TOD_SECONDS_PER_NON_LEAP_YEAR) + \
(4 * TOD_SECONDS_PER_DAY))
/*
* NOTE: The solaris gettimeofday does not have a second parameter.
*/
int gettimeofday(
struct timeval *tp,
struct timezone *tzp
)
{
rtems_interrupt_level level;
rtems_unsigned32 seconds;
rtems_unsigned32 microseconds;
if ( !tp ) {
errno = EFAULT;
return -1;
}
/*
* POSIX does not seem to allow for not having a TOD so we just
* grab the time of day.
*
* NOTE: XXX this routine should really be in the executive proper.
*/
rtems_interrupt_disable(level);
seconds = _TOD_Seconds_since_epoch;
microseconds = _TOD_Current.ticks;
rtems_interrupt_enable(level);
tp->tv_sec = seconds + POSIX_TIME_SECONDS_1970_THROUGH_1988;
tp->tv_usec = microseconds * _TOD_Microseconds_per_tick;
/*
* newlib does not have timezone and daylight savings time
* yet. When it does this needs to be fixed.
*/
#if 0
if ( tzp ) {
tzp->tz_minuteswest = 0; /* at UTC */
tzp->tz_dsttime = 0; /* no daylight savings */
tzp->minuteswest = timezone / 60; /* from seconds to minutes */
tzp->dsttime = daylight;
}
#endif
return 0;
}
#if defined(RTEMS_NEWLIB)
/*
* "Reentrant" version
*/
int _gettimeofday_r(
struct _reent *ignored_reentrancy_stuff,
struct timeval *tp,
struct timezone *tzp
)
{
return gettimeofday( tp, tzp );
}
/*
* "System call" version
*/
int _gettimeofday(
struct timeval *tp,
struct timezone *tzp
)
{
return gettimeofday( tp, tzp );
}
#endif /* defined(RTEMS_NEWLIB) */
#endif
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