blob: 0ea4336321e145ae6b78ca5e15a39e9372c2f3f9 (
plain) (
tree)
|
|
/**
* @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>
RTEMS_INLINE_ROUTINE Scheduler_priority_affinity_SMP_Per_thread *
_Scheduler_priority_affinity_Get_scheduler_info( Thread_Control *thread )
{
return ( Scheduler_priority_affinity_SMP_Per_thread * ) thread->scheduler_info;
}
bool _Scheduler_priority_affinity_SMP_Allocate(
const Scheduler_Control *scheduler,
Thread_Control *the_thread
)
{
Scheduler_priority_affinity_SMP_Per_thread *info =
the_thread->scheduler_info;
info->Affinity = *_CPU_set_Default();
info->Affinity.set = &info->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_Per_thread *info =
_Scheduler_priority_affinity_Get_scheduler_info(thread);
(void) scheduler;
if ( info->Affinity.setsize != cpusetsize ) {
return false;
}
CPU_COPY( cpuset, info->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_Per_thread *info =
_Scheduler_priority_affinity_Get_scheduler_info(thread);
(void) scheduler;
if ( ! _CPU_set_Is_valid( cpuset, cpusetsize ) ) {
return false;
}
CPU_COPY( info->Affinity.set, cpuset );
return true;
}
|