blob: 1deaa61045d0e95e88463df6dd34386bfe2cf72f (
plain) (
tree)
|
|
/*
* Thread Queue Handler
*
*
* COPYRIGHT (c) 1989-1999.
* 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.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#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>
/*PAGE
*
* _Thread_queue_Initialize
*
* This routine initializes the specified threadq.
*
* Input parameters:
* the_thread_queue - pointer to a threadq header
* the_class - class of the object to which this belongs
* discipline - queueing discipline
* state - state of waiting threads
* proxy_extract_callout - MP specific callout
* timeout_status - return on a timeout
*
* Output parameters: NONE
*/
void _Thread_queue_Initialize(
Thread_queue_Control *the_thread_queue,
Objects_Classes the_class,
Thread_queue_Disciplines the_discipline,
States_Control state,
Thread_queue_Extract_callout proxy_extract_callout,
unsigned32 timeout_status
)
{
unsigned32 index;
_Thread_queue_Extract_table[ the_class ] = proxy_extract_callout;
the_thread_queue->state = state;
the_thread_queue->discipline = the_discipline;
the_thread_queue->timeout_status = timeout_status;
the_thread_queue->sync_state = THREAD_QUEUE_SYNCHRONIZED;
switch ( the_discipline ) {
case THREAD_QUEUE_DISCIPLINE_FIFO:
_Chain_Initialize_empty( &the_thread_queue->Queues.Fifo );
break;
case THREAD_QUEUE_DISCIPLINE_PRIORITY:
for( index=0 ;
index < TASK_QUEUE_DATA_NUMBER_OF_PRIORITY_HEADERS ;
index++)
_Chain_Initialize_empty( &the_thread_queue->Queues.Priority[index] );
break;
}
}
|