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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSImplClassicTask
*
* @brief This source file contains the implementation of
* rtems_task_set_affinity().
*/
/*
* COPYRIGHT (c) 2014.
* 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/rtems/tasks.h>
#include <rtems/rtems/statusimpl.h>
#include <rtems/score/threadimpl.h>
#include <rtems/score/schedulerimpl.h>
rtems_status_code rtems_task_set_affinity(
rtems_id id,
size_t cpusetsize,
const cpu_set_t *cpuset
)
{
Thread_Control *the_thread;
ISR_lock_Context lock_context;
Per_CPU_Control *cpu_self;
Status_Control status;
if ( cpuset == NULL ) {
return RTEMS_INVALID_ADDRESS;
}
the_thread = _Thread_Get( id, &lock_context );
if ( the_thread == NULL ) {
#if defined(RTEMS_MULTIPROCESSING)
if ( _Thread_MP_Is_remote( id ) ) {
return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
}
#endif
return RTEMS_INVALID_ID;
}
cpu_self = _Thread_Dispatch_disable_critical( &lock_context );
_Thread_State_acquire_critical( the_thread, &lock_context );
status = _Scheduler_Set_affinity(
the_thread,
cpusetsize,
cpuset
);
_Thread_State_release( the_thread, &lock_context );
_Thread_Dispatch_enable( cpu_self );
return _Status_Get( status );
}
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