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/**
* @file
*
* @brief Thread Queue Requeue
* @ingroup ScoreThreadQ
*/
/*
* COPYRIGHT (c) 1989-2008.
* 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.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/threadqimpl.h>
#include <rtems/score/statesimpl.h>
void _Thread_queue_Requeue(
Thread_queue_Control *the_thread_queue,
Thread_Control *the_thread
)
{
/*
* Just in case the thread really wasn't blocked on a thread queue
* when we get here.
*/
if ( !the_thread_queue )
return;
/*
* If queueing by FIFO, there is nothing to do. This only applies to
* priority blocking discipline.
*/
if ( the_thread_queue->discipline == THREAD_QUEUE_DISCIPLINE_PRIORITY ) {
Thread_queue_Control *tq = the_thread_queue;
ISR_Level level;
ISR_Level level_ignored;
_ISR_Disable( level );
if ( _States_Is_waiting_on_thread_queue( the_thread->current_state ) ) {
_Thread_queue_Enter_critical_section( tq );
_Thread_queue_Extract_priority_helper( the_thread, true );
(void) _Thread_queue_Enqueue_priority( tq, the_thread, &level_ignored );
}
_ISR_Enable( level );
}
}
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