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/**
* @file
*
* @brief Deterministic Priority Affinity SMP Scheduler Implementation
*
* @ingroup ScoreSchedulerPriorityAffinitySMP
*/
/*
* COPYRIGHT (c) 2014.
* On-Line Applications Research Corporation (OAR).
*
* 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.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/schedulerpriorityaffinitysmp.h>
#include <rtems/score/schedulerpriorityimpl.h>
#include <rtems/score/schedulersmpimpl.h>
#include <rtems/score/wkspace.h>
#include <rtems/score/cpusetimpl.h>
static Scheduler_priority_affinity_SMP_Node *
_Scheduler_priority_affinity_Node_get( Thread_Control *thread )
{
return ( Scheduler_priority_affinity_SMP_Node * )
_Scheduler_Node_get( thread );
}
bool _Scheduler_priority_affinity_SMP_Allocate(
const Scheduler_Control *scheduler,
Thread_Control *the_thread
)
{
Scheduler_priority_affinity_SMP_Node *node =
_Scheduler_priority_affinity_Node_get( the_thread );
_Scheduler_SMP_Node_initialize( &node->Base.Base );
node->Affinity = *_CPU_set_Default();
node->Affinity.set = &node->Affinity.preallocated;
return true;
}
bool _Scheduler_priority_affinity_SMP_Get_affinity(
const Scheduler_Control *scheduler,
Thread_Control *thread,
size_t cpusetsize,
cpu_set_t *cpuset
)
{
Scheduler_priority_affinity_SMP_Node *node =
_Scheduler_priority_affinity_Node_get(thread);
(void) scheduler;
if ( node->Affinity.setsize != cpusetsize ) {
return false;
}
CPU_COPY( cpuset, node->Affinity.set );
return true;
}
bool _Scheduler_priority_affinity_SMP_Set_affinity(
const Scheduler_Control *scheduler,
Thread_Control *thread,
size_t cpusetsize,
cpu_set_t *cpuset
)
{
Scheduler_priority_affinity_SMP_Node *node =
_Scheduler_priority_affinity_Node_get(thread);
(void) scheduler;
if ( ! _CPU_set_Is_valid( cpuset, cpusetsize ) ) {
return false;
}
CPU_COPY( node->Affinity.set, cpuset );
return true;
}
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