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

/**
 * @file
 *
 * @ingroup RTEMSScoreThread
 *
 * @brief This source file contains static assertions related to the Thread
 *   Handler and the implementation of _Thread_Initialize_information() and
 *   _Thread_Handler_initialization().
 */

/*
 *  COPYRIGHT (c) 1989-2011.
 *  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.
 */

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

#include <rtems/score/threadimpl.h>
#include <rtems/score/freechainimpl.h>
#include <rtems/score/objectimpl.h>
#include <rtems/score/scheduler.h>

#define THREAD_OFFSET_ASSERT( field ) \
  RTEMS_STATIC_ASSERT( \
    offsetof( Thread_Control, field ) == offsetof( Thread_Proxy_control, field ), \
    field \
  )

THREAD_OFFSET_ASSERT( Object );
THREAD_OFFSET_ASSERT( Join_queue );
THREAD_OFFSET_ASSERT( current_state );
THREAD_OFFSET_ASSERT( Real_priority );
#if defined(RTEMS_SCORE_THREAD_ENABLE_RESOURCE_COUNT)
THREAD_OFFSET_ASSERT( resource_count );
#endif
THREAD_OFFSET_ASSERT( Scheduler );
THREAD_OFFSET_ASSERT( Wait );
THREAD_OFFSET_ASSERT( Timer );
#if defined(RTEMS_MULTIPROCESSING)
THREAD_OFFSET_ASSERT( receive_packet );
#endif

void _Thread_Initialize_information( Thread_Information *information )
{
  _Objects_Initialize_information( &information->Objects );

  _Freechain_Initialize(
    &information->Thread_queue_heads.Free,
    information->Thread_queue_heads.initial,
    _Objects_Get_maximum_index( &information->Objects ),
    _Thread_queue_Heads_size
  );
}

void _Thread_Handler_initialization(void)
{
#if defined(RTEMS_MULTIPROCESSING)
  _Thread_MP_Handler_initialization( _MPCI_Configuration.maximum_proxies );
#endif

  /*
   *  Initialize the internal class of threads.  We need an IDLE thread
   *  per CPU in an SMP system.  In addition, if this is a loosely
   *  coupled multiprocessing system, account for the MPCI Server Thread.
   */
  _Thread_Initialize_information( &_Thread_Information );
}