timestampimpl.h

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/* SPDX-License-Identifier: BSD-2-Clause */
 
/*
 *  COPYRIGHT (c) 1989-2009.
 *  On-Line Applications Research Corporation (OAR).
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 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 _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
 
static inline 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);
}
 
static inline void _Timestamp_Set_to_zero(
  Timestamp_Control *_time
)
{
  *_time = 0;
}
 
static inline bool _Timestamp_Less_than(
  const Timestamp_Control *_lhs,
  const Timestamp_Control *_rhs
)
{
  return *_lhs < *_rhs;
}
 
static inline bool _Timestamp_Greater_than(
  const Timestamp_Control *_lhs,
  const Timestamp_Control *_rhs
)
{
  return *_lhs > *_rhs;
}
 
static inline bool _Timestamp_Equal_to(
  const Timestamp_Control *_lhs,
  const Timestamp_Control *_rhs
)
{
  return *_lhs == *_rhs;
}
 
static inline void _Timestamp_Add_to(
  Timestamp_Control *_time,
  const Timestamp_Control *_add
)
{
  *_time += *_add;
}
 
static inline void _Timestamp_Subtract(
  const Timestamp_Control *_start,
  const Timestamp_Control *_end,
  Timestamp_Control       *_result
)
{
  *_result = *_end - *_start;
}
 
static inline 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
  );
}
 
static inline time_t _Timestamp_Get_seconds(
  const Timestamp_Control *_time
)
{
  return (*_time >> 32);
}
 
static inline uint32_t _Timestamp_Get_nanoseconds(
  const Timestamp_Control *_time
)
{
  struct timespec _ts;
 
  _ts = sbttots( *_time );
 
  return (uint32_t) _ts.tv_nsec;
}
 
static inline uint64_t _Timestamp_Get_as_nanoseconds(
  const Timestamp_Control *_time
)
{
  struct timespec _ts;
 
  _ts = sbttots( *_time );
 
  return _Timespec_Get_as_nanoseconds( &_ts );
}
 
static inline void _Timestamp_To_timespec(
  const Timestamp_Control *_timestamp,
  struct timespec         *_timespec
)
{
  *_timespec = sbttots( *_timestamp );
}
 
static inline void _Timestamp_To_timeval(
  const Timestamp_Control *_timestamp,
  struct timeval          *_timeval
)
{
  *_timeval = sbttotv( *_timestamp );
}
 
#ifdef __cplusplus
}
#endif
 
#endif
/* end of include file */