source: rtems/cpukit/rtems/src/ratemongetstatistics.c

/* SPDX-License-Identifier: BSD-2-Clause */

/**
 * @file
 *
 * @ingroup RTEMSImplClassicRateMonotonic
 *
 * @brief This source file contains the implementation of
 *   rtems_rate_monotonic_get_statistics().
 */

/*
 *  COPYRIGHT (c) 1989-2009.
 *  On-Line Applications Research Corporation (OAR).
 *  Copyright (c) 2016 embedded brains GmbH & Co. KG
 *
 * 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.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <rtems/rtems/ratemonimpl.h>

rtems_status_code rtems_rate_monotonic_get_statistics(
  rtems_id                                id,
  rtems_rate_monotonic_period_statistics *dst
)
{
  Rate_monotonic_Control          *the_period;
  ISR_lock_Context                 lock_context;
  const Rate_monotonic_Statistics *src;

  if ( dst == NULL ) {
    return RTEMS_INVALID_ADDRESS;
  }

  the_period = _Rate_monotonic_Get( id, &lock_context );
  if ( the_period == NULL ) {
    return RTEMS_INVALID_ID;
  }

  _Rate_monotonic_Acquire_critical( the_period, &lock_context );

  src = &the_period->Statistics;
  dst->count        = src->count;
  dst->missed_count = src->missed_count;
  _Timestamp_To_timespec( &src->min_cpu_time,    &dst->min_cpu_time );
  _Timestamp_To_timespec( &src->max_cpu_time,    &dst->max_cpu_time );
  _Timestamp_To_timespec( &src->total_cpu_time,  &dst->total_cpu_time );
  _Timestamp_To_timespec( &src->min_wall_time,   &dst->min_wall_time );
  _Timestamp_To_timespec( &src->max_wall_time,   &dst->max_wall_time );
  _Timestamp_To_timespec( &src->total_wall_time, &dst->total_wall_time );

  _Rate_monotonic_Release( the_period, &lock_context );
  return RTEMS_SUCCESSFUL;
}