timestampimpl.h

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/*
 *  COPYRIGHT (c) 1989-2009.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 */

#ifndef _RTEMS_SCORE_TIMESTAMPIMPL_H
#define _RTEMS_SCORE_TIMESTAMPIMPL_H

#include <rtems/score/timestamp.h>
#include <rtems/score/basedefs.h>

#include <sys/time.h>

#ifdef __cplusplus
extern "C" {
#endif

RTEMS_INLINE_ROUTINE void _Timestamp_Set(
  Timestamp_Control *_time,
  time_t             _seconds,
  long               _nanoseconds
)
{
  struct timespec _ts;

  _ts.tv_sec = _seconds;
  _ts.tv_nsec = _nanoseconds;

  *_time = tstosbt(_ts);
}

RTEMS_INLINE_ROUTINE void _Timestamp_Set_to_zero(
  Timestamp_Control *_time
)
{
  *_time = 0;
}

RTEMS_INLINE_ROUTINE bool _Timestamp_Less_than(
  const Timestamp_Control *_lhs,
  const Timestamp_Control *_rhs
)
{
  return *_lhs < *_rhs;
}

RTEMS_INLINE_ROUTINE bool _Timestamp_Greater_than(
  const Timestamp_Control *_lhs,
  const Timestamp_Control *_rhs
)
{
  return *_lhs > *_rhs;
}

RTEMS_INLINE_ROUTINE bool _Timestamp_Equal_to(
  const Timestamp_Control *_lhs,
  const Timestamp_Control *_rhs
)
{
  return *_lhs == *_rhs;
}

RTEMS_INLINE_ROUTINE void _Timestamp_Add_to(
  Timestamp_Control *_time,
  const Timestamp_Control *_add
)
{
  *_time += *_add;
}

RTEMS_INLINE_ROUTINE void _Timestamp_Subtract(
  const Timestamp_Control *_start,
  const Timestamp_Control *_end,
  Timestamp_Control       *_result
)
{
  *_result = *_end - *_start;
}

RTEMS_INLINE_ROUTINE void _Timestamp_Divide(
  const Timestamp_Control *_lhs,
  const Timestamp_Control *_rhs,
  uint32_t                *_ival_percentage,
  uint32_t                *_fval_percentage
)
{
  struct timespec _ts_left;
  struct timespec _ts_right;

  _ts_left = sbttots( *_lhs );
  _ts_right = sbttots( *_rhs );

  _Timespec_Divide(
    &_ts_left,
    &_ts_right,
    _ival_percentage,
    _fval_percentage
  );
}

RTEMS_INLINE_ROUTINE time_t _Timestamp_Get_seconds(
  const Timestamp_Control *_time
)
{
  return (*_time >> 32);
}

RTEMS_INLINE_ROUTINE uint32_t _Timestamp_Get_nanoseconds(
  const Timestamp_Control *_time
)
{
  struct timespec _ts;

  _ts = sbttots( *_time );

  return (uint32_t) _ts.tv_nsec;
}

RTEMS_INLINE_ROUTINE uint64_t _Timestamp_Get_as_nanoseconds(
  const Timestamp_Control *_time
)
{
  struct timespec _ts;

  _ts = sbttots( *_time );

  return _Timespec_Get_as_nanoseconds( &_ts );
}

RTEMS_INLINE_ROUTINE void _Timestamp_To_timespec(
  const Timestamp_Control *_timestamp,
  struct timespec         *_timespec
)
{
  *_timespec = sbttots( *_timestamp );
}

RTEMS_INLINE_ROUTINE void _Timestamp_To_timeval(
  const Timestamp_Control *_timestamp,
  struct timeval          *_timeval
)
{
  *_timeval = sbttotv( *_timestamp );
}

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */