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/**
* @file
*
* @brief Thread Queue Initialize
* @ingroup ScoreThreadQ
*/
/*
* COPYRIGHT (c) 1989-2014.
* 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/threadqimpl.h>
#include <rtems/score/rbtreeimpl.h>
#include <rtems/score/threadimpl.h>
#if HAVE_STRUCT__THREAD_QUEUE_QUEUE
RTEMS_STATIC_ASSERT(
offsetof( Thread_queue_Syslock_queue, Queue.heads )
== offsetof( struct _Thread_queue_Queue, _heads ),
THREAD_QUEUE_SYSLOCK_QUEUE_HEADS
);
RTEMS_STATIC_ASSERT(
#if defined(RTEMS_SMP)
offsetof( Thread_queue_Syslock_queue, Queue.Lock.next_ticket )
#else
offsetof( Thread_queue_Syslock_queue, reserved[ 0 ] )
#endif
== offsetof( struct _Thread_queue_Queue, _Lock._next_ticket ),
THREAD_QUEUE_SYSLOCK_QUEUE_NEXT_TICKET
);
RTEMS_STATIC_ASSERT(
#if defined(RTEMS_SMP)
offsetof( Thread_queue_Syslock_queue, Queue.Lock.now_serving )
#else
offsetof( Thread_queue_Syslock_queue, reserved[ 1 ] )
#endif
== offsetof( struct _Thread_queue_Queue, _Lock._now_serving ),
THREAD_QUEUE_SYSLOCK_QUEUE_NOW_SERVING
);
RTEMS_STATIC_ASSERT(
sizeof( Thread_queue_Syslock_queue )
== sizeof( struct _Thread_queue_Queue ),
THREAD_QUEUE_SYSLOCK_QUEUE_SIZE
);
#endif /* HAVE_STRUCT__THREAD_QUEUE_QUEUE */
RBTree_Compare_result _Thread_queue_Compare_priority(
const RBTree_Node *left,
const RBTree_Node *right
)
{
const Thread_Control *left_thread;
const Thread_Control *right_thread;
Priority_Control left_prio;
Priority_Control right_prio;
left_thread = THREAD_RBTREE_NODE_TO_THREAD( left );
right_thread = THREAD_RBTREE_NODE_TO_THREAD( right );
left_prio = left_thread->current_priority;
right_prio = right_thread->current_priority;
/*
* SuperCore priorities use lower numbers to indicate greater importance.
*/
return ( left_prio > right_prio ) - ( left_prio < right_prio );
}
void _Thread_queue_Initialize( Thread_queue_Control *the_thread_queue )
{
_Thread_queue_Queue_initialize( &the_thread_queue->Queue );
#if defined(RTEMS_SMP)
_SMP_lock_Stats_initialize( &the_thread_queue->Lock_stats, "Thread Queue" );
#endif
}
#if defined(RTEMS_MULTIPROCESSING)
void _Thread_queue_MP_callout_do_nothing(
Thread_Control *the_proxy,
Objects_Id mp_id
)
{
/* Do nothing */
}
#endif
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