path: root/cpukit/score/src/threadyield.c

/**
 * @file
 *
 * @ingroup RTEMSScoreThread
 *
 * @brief This source file contains the implementation of
 *   _Thread_Yield().
 */

/*
 * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
 *
 *  embedded brains GmbH
 *  Dornierstr. 4
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * 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.
 */

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

#include <rtems/score/threadimpl.h>
#include <rtems/score/schedulerimpl.h>

void _Thread_Yield( Thread_Control *executing )
{
  ISR_lock_Context lock_context;

  _Thread_State_acquire( executing, &lock_context );

  if ( _States_Is_ready( executing->current_state ) ) {
    _Scheduler_Yield( executing );
  }

  _Thread_State_release( executing, &lock_context );
}