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/**
* @file
*
* @ingroup RTEMSImplClassic
*
* @brief This source file contains the implementation of
* rtems_scheduler_ident_by_processor_set().
*/
/*
* Copyright (c) 2017 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/rtems/tasks.h>
#include <rtems/score/assert.h>
#include <rtems/score/schedulerimpl.h>
rtems_status_code rtems_scheduler_ident_by_processor_set(
size_t cpusetsize,
const cpu_set_t *cpuset,
rtems_id *id
)
{
Processor_mask set;
Processor_mask_Copy_status status;
uint32_t cpu_index;
const Scheduler_Control *scheduler;
if ( id == NULL ) {
return RTEMS_INVALID_ADDRESS;
}
status = _Processor_mask_From_cpu_set_t( &set, cpusetsize, cpuset );
if ( status == PROCESSOR_MASK_COPY_INVALID_SIZE ) {
return RTEMS_INVALID_SIZE;
}
_Processor_mask_And( &set, &set, _SMP_Get_online_processors() );
cpu_index = _Processor_mask_Find_last_set( &set );
if ( cpu_index == 0 ) {
return RTEMS_INVALID_NAME;
}
scheduler = _Scheduler_Get_by_CPU( _Per_CPU_Get_by_index( cpu_index - 1) );
#if defined(RTEMS_SMP)
if ( scheduler == NULL ) {
return RTEMS_INCORRECT_STATE;
}
#else
_Assert( scheduler != NULL );
#endif
*id = _Scheduler_Build_id( _Scheduler_Get_index( scheduler ) );
return RTEMS_SUCCESSFUL;
}
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