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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [tests/] [tmtests/] [tm13/] [task1.c] - Blame information for rev 484

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1 30 unneback
/*
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 *
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 *  COPYRIGHT (c) 1989-1999.
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 *  On-Line Applications Research Corporation (OAR).
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 *
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 *  The license and distribution terms for this file may be
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 *  found in the file LICENSE in this distribution or at
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 *  http://www.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: task1.c,v 1.2 2001-09-27 12:02:42 chris Exp $
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 */
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#define TEST_INIT
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#include "system.h"
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rtems_id Queue_id;
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long Buffer[4];
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rtems_task test_init(
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  rtems_task_argument argument
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);
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rtems_task Middle_tasks(
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  rtems_task_argument argument
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);
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rtems_task High_task(
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  rtems_task_argument argument
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);
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#define MESSAGE_SIZE (sizeof(long) * 4)
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void Init(
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  rtems_task_argument argument
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)
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{
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  rtems_status_code status;
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  rtems_id id;
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  Print_Warning();
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  puts( "\n\n*** TIME TEST 13 ***" );
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  status = rtems_task_create(
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    1,
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    251,
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    RTEMS_MINIMUM_STACK_SIZE,
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    RTEMS_DEFAULT_MODES,
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    RTEMS_DEFAULT_ATTRIBUTES,
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    &id
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  );
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  directive_failed( status, "rtems_task_create" );
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  status = rtems_task_start( id, test_init, 0 );
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  directive_failed( status, "rtems_task_start" );
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  status = rtems_task_delete( RTEMS_SELF );
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  directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
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}
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rtems_task test_init(
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  rtems_task_argument argument
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)
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{
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  rtems_unsigned32    index;
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  rtems_task_entry    task_entry;
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  rtems_task_priority priority;
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  rtems_id            task_id;
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  rtems_status_code   status;
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/*  As each task is started, it preempts this task and
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 *  performs a blocking rtems_message_queue_receive.  Upon completion of
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 *  this loop all created tasks are blocked.
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 */
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  status = rtems_message_queue_create(
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    rtems_build_name( 'M', 'Q', '1', ' '  ),
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    OPERATION_COUNT,
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    MESSAGE_SIZE,
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    RTEMS_DEFAULT_ATTRIBUTES,
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    &Queue_id
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  );
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  directive_failed( status, "rtems_message_queue_create" );
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  priority = 250;
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  for( index = 0; index < OPERATION_COUNT ; index++ ) {
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    status = rtems_task_create(
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      rtems_build_name( 'T', 'I', 'M', 'E'  ),
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      priority,
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      RTEMS_MINIMUM_STACK_SIZE,
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      RTEMS_DEFAULT_MODES,
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      RTEMS_DEFAULT_ATTRIBUTES,
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      &task_id
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    );
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    directive_failed( status, "rtems_task_create LOOP" );
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    priority--;
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    if ( index==OPERATION_COUNT-1 ) task_entry = High_task;
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    else                            task_entry = Middle_tasks;
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    status = rtems_task_start( task_id, task_entry, 0 );
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    directive_failed( status, "rtems_task_start LOOP" );
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  }
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  Timer_initialize();
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    (void) rtems_message_queue_urgent( Queue_id, Buffer, MESSAGE_SIZE );
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}
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rtems_task Middle_tasks(
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  rtems_task_argument argument
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)
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{
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  rtems_unsigned32 size;
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  (void) rtems_message_queue_receive(
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           Queue_id,
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           (long (*)[4]) Buffer,
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           &size,
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           RTEMS_DEFAULT_OPTIONS,
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           RTEMS_NO_TIMEOUT
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         );
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  (void) rtems_message_queue_urgent( Queue_id, (long (*)[4]) Buffer, size );
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}
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rtems_task High_task(
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  rtems_task_argument argument
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)
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{
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  rtems_unsigned32 size;
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  (void) rtems_message_queue_receive(
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           Queue_id,
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           (long (*)[4]) Buffer,
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           &size,
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           RTEMS_DEFAULT_OPTIONS,
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           RTEMS_NO_TIMEOUT
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         );
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  end_time = Read_timer();
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  put_time(
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    "rtems_message_queue_urgent: task readied -- preempts caller",
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    end_time,
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    OPERATION_COUNT,
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    0,
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    CALLING_OVERHEAD_MESSAGE_QUEUE_URGENT
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  );
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  puts( "*** END OF TEST 13 ***" );
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  exit( 0 );
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}

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