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/*
* Thread Queue Handler
*
*
* 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/system.h>
#include <rtems/score/chain.h>
#include <rtems/score/isr.h>
#include <rtems/score/object.h>
#include <rtems/score/states.h>
#include <rtems/score/thread.h>
#include <rtems/score/threadq.h>
#include <rtems/score/tqdata.h>
/*
* _Thread_queue_Initialize
*
* This routine initializes the specified threadq.
*
* Input parameters:
* the_thread_queue - pointer to a threadq header
* discipline - queueing discipline
* state - state of waiting threads
* timeout_status - return on a timeout
*
* Output parameters: NONE
*/
void _Thread_queue_Initialize(
Thread_queue_Control *the_thread_queue,
Thread_queue_Disciplines the_discipline,
States_Control state,
uint32_t timeout_status
)
{
the_thread_queue->state = state;
the_thread_queue->discipline = the_discipline;
the_thread_queue->timeout_status = timeout_status;
the_thread_queue->sync_state = THREAD_BLOCKING_OPERATION_SYNCHRONIZED;
if ( the_discipline == THREAD_QUEUE_DISCIPLINE_PRIORITY ) {
uint32_t index;
for( index=0 ;
index < TASK_QUEUE_DATA_NUMBER_OF_PRIORITY_HEADERS ;
index++)
_Chain_Initialize_empty( &the_thread_queue->Queues.Priority[index] );
} else { /* must be THREAD_QUEUE_DISCIPLINE_FIFO */
_Chain_Initialize_empty( &the_thread_queue->Queues.Fifo );
}
}
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