forked from Imagelibrary/rtems
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup POSIXAPI
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*
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* @brief Pthread Set Affinity
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*/
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/*
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* COPYRIGHT (c) 2014.
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* On-Line Applications Research Corporation (OAR).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define _GNU_SOURCE
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#if HAVE_DECL_PTHREAD_SETAFFINITY_NP
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#include <pthread.h>
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#include <errno.h>
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#include <rtems/score/threadimpl.h>
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#include <rtems/score/schedulerimpl.h>
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#include <rtems/posix/posixapi.h>
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int pthread_setaffinity_np(
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pthread_t thread,
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size_t cpusetsize,
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const cpu_set_t *cpuset
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)
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{
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Thread_Control *the_thread;
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ISR_lock_Context lock_context;
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Per_CPU_Control *cpu_self;
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Status_Control status;
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if ( cpuset == NULL ) {
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return EFAULT;
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}
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the_thread = _Thread_Get( thread, &lock_context );
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if ( the_thread == NULL ) {
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return ESRCH;
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}
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cpu_self = _Thread_Dispatch_disable_critical( &lock_context );
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_Thread_State_acquire_critical( the_thread, &lock_context );
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status = _Scheduler_Set_affinity(
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the_thread,
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cpusetsize,
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cpuset
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);
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_Thread_State_release( the_thread, &lock_context );
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_Thread_Dispatch_enable( cpu_self );
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return _POSIX_Get_error( status );
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}
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#endif
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