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1026 |
ivang |
/* Priority_test_driver
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*
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* This routine is the initialization task for this test program.
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* It is a user initialization task and has the responsibility for creating
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* and starting the tasks that make up the test. If the time of day
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* clock is required for the test, it should also be set to a known
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* value by this function.
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*
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* Input parameters:
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* priority_base - priority_base switch
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*
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* Output parameters: NONE
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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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* pridrv.c,v 1.8 1999/11/17 17:51:32 joel Exp
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*/
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#include "system.h"
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void Priority_test_driver(
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rtems_unsigned32 priority_base
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)
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{
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rtems_task_priority previous_priority;
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rtems_unsigned32 index;
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rtems_status_code status;
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for ( index = 1 ; index <= 5 ; index++ ) {
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switch ( index ) {
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case 1:
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case 2:
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case 3:
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Task_priority[ index ] = priority_base + index;
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break;
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default:
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Task_priority[ index ] = priority_base + 3;
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break;
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}
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status = rtems_task_create(
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Priority_task_name[ index ],
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Task_priority[ index ],
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RTEMS_MINIMUM_STACK_SIZE * 2,
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RTEMS_DEFAULT_MODES,
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RTEMS_DEFAULT_ATTRIBUTES,
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&Priority_task_id[ index ]
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);
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directive_failed( status, "rtems_task_create loop" );
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}
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if ( priority_base == 0 ) {
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for ( index = 1 ; index <= 5 ; index++ ) {
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status = rtems_task_start(
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Priority_task_id[ index ],
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Priority_task,
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index
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);
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directive_failed( status, "rtems_task_start loop" );
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}
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} else {
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for ( index = 5 ; index >= 1 ; index-- ) {
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status = rtems_task_start(
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Priority_task_id[ index ],
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Priority_task,
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index
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);
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directive_failed( status, "rtems_task_start loop" );
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status = rtems_task_wake_after( TICKS_PER_SECOND );
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directive_failed( status, "rtems_task_wake_after loop" );
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if ( priority_base == 64 ) {
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if ( index == 4 ) {
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status = rtems_task_set_priority(
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Priority_task_id[ 5 ],
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priority_base + 4,
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&previous_priority
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);
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printf( "PDRV - change priority of PRI5 from %d to %d\n",
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previous_priority,
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priority_base + 4
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);
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directive_failed( status, "PDRV rtems_task_set_priority" );
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}
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status = rtems_task_set_priority(
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Priority_task_id[ 5 ],
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RTEMS_CURRENT_PRIORITY,
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&previous_priority
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);
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directive_failed( status, "PDRV rtems_task_set_priority CURRENT" );
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printf( "PDRV - priority of PRI5 is %d\n", previous_priority );
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}
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}
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}
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status = rtems_task_wake_after( TICKS_PER_SECOND );
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directive_failed( status, "rtems_task_wake_after after loop" );
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if ( priority_base == 0 ) {
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for ( index = 1 ; index <= 5 ; index++ ) {
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status = rtems_semaphore_release( Semaphore_id[ 2 ] );
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directive_failed( status, "rtems_semaphore_release loop" );
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}
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}
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if ( priority_base == 64 ) {
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puts( "PDRV - rtems_task_resume - PRI5" );
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status = rtems_task_resume( Priority_task_id[ 5 ] );
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directive_failed( status, "rtems_task_resume" );
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status = rtems_task_wake_after( 1 * TICKS_PER_SECOND );
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directive_failed( status, "rtems_task_wake_after so PRI5 can run" );
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status = rtems_task_delete( Priority_task_id[ 5 ] );
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directive_failed( status, "rtems_task_delete of PRI5" );
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}
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else {
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for ( index = 1 ; index <= 5 ; index++ ) {
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status = rtems_task_delete( Priority_task_id[ index ] );
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directive_failed( status, "rtems_task_delete loop" );
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}
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}
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}
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