/* Task_2
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/* Task_2
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*
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*
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* This routine serves as a test task. Plays with priorities to verify
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* This routine serves as a test task. Plays with priorities to verify
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* that the highest priority task is always executed.
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* that the highest priority task is always executed.
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*
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*
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* Input parameters:
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* Input parameters:
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* argument - task argument
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* argument - task argument
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*
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*
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* Output parameters: NONE
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* Output parameters: NONE
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*
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*
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* COPYRIGHT (c) 1989-1999.
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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* On-Line Applications Research Corporation (OAR).
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*
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*
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* The license and distribution terms for this file may be
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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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* 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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* http://www.OARcorp.com/rtems/license.html.
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*
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*
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* $Id: task2.c,v 1.2 2001-09-27 12:02:31 chris Exp $
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* $Id: task2.c,v 1.2 2001-09-27 12:02:31 chris Exp $
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*/
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*/
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#include "system.h"
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#include "system.h"
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rtems_task Task_2(
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rtems_task Task_2(
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rtems_task_argument argument
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rtems_task_argument argument
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)
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)
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{
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{
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rtems_status_code status;
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rtems_status_code status;
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rtems_task_priority the_priority;
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rtems_task_priority the_priority;
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rtems_task_priority previous_priority;
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rtems_task_priority previous_priority;
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while( FOREVER ) {
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while( FOREVER ) {
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status = rtems_task_get_note( RTEMS_SELF, RTEMS_NOTEPAD_8, &the_priority );
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status = rtems_task_get_note( RTEMS_SELF, RTEMS_NOTEPAD_8, &the_priority );
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directive_failed( status, "rtems_task_get_note" );
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directive_failed( status, "rtems_task_get_note" );
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printf(
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printf(
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"TA2 - rtems_task_get_note - get RTEMS_NOTEPAD_8 - current priority: %02d\n",
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"TA2 - rtems_task_get_note - get RTEMS_NOTEPAD_8 - current priority: %02d\n",
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the_priority
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the_priority
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);
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);
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if ( --the_priority == 0 ) {
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if ( --the_priority == 0 ) {
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puts( "TA2 - rtems_task_suspend - suspend TA1" );
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puts( "TA2 - rtems_task_suspend - suspend TA1" );
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status = rtems_task_suspend( Task_id[ 1 ] );
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status = rtems_task_suspend( Task_id[ 1 ] );
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directive_failed( status, "rtems_task_suspend" );
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directive_failed( status, "rtems_task_suspend" );
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puts( "TA2 - rtems_task_set_priority - set priority of TA1 ( blocked )" );
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puts( "TA2 - rtems_task_set_priority - set priority of TA1 ( blocked )" );
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status = rtems_task_set_priority( Task_id[ 1 ], 5, &previous_priority );
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status = rtems_task_set_priority( Task_id[ 1 ], 5, &previous_priority );
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directive_failed( status, "rtems_task_set_priority" );
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directive_failed( status, "rtems_task_set_priority" );
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status = rtems_task_delete( Task_id[ 1 ] ); /* TA1 is blocked */
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status = rtems_task_delete( Task_id[ 1 ] ); /* TA1 is blocked */
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directive_failed( status, "rtems_task_delete of TA1" );
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directive_failed( status, "rtems_task_delete of TA1" );
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status = rtems_task_delete( Task_id[ 3 ] ); /* TA3 is ready */
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status = rtems_task_delete( Task_id[ 3 ] ); /* TA3 is ready */
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directive_failed( status, "rtems_task_delete of TA3" );
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directive_failed( status, "rtems_task_delete of TA3" );
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status = rtems_task_delete( RTEMS_SELF );
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status = rtems_task_delete( RTEMS_SELF );
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directive_failed( status, "rtems_task_delete of SELD" );
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directive_failed( status, "rtems_task_delete of SELD" );
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} else {
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} else {
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printf( "TA2 - rtems_task_set_note - set TA1's RTEMS_NOTEPAD_8: %02d\n",
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printf( "TA2 - rtems_task_set_note - set TA1's RTEMS_NOTEPAD_8: %02d\n",
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the_priority
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the_priority
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);
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);
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status = rtems_task_set_note(Task_id[ 1 ], RTEMS_NOTEPAD_8, the_priority);
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status = rtems_task_set_note(Task_id[ 1 ], RTEMS_NOTEPAD_8, the_priority);
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directive_failed( status, "rtems_task_set_note" );
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directive_failed( status, "rtems_task_set_note" );
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printf( "TA2 - rtems_task_set_priority - set TA1's priority: %02d\n",
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printf( "TA2 - rtems_task_set_priority - set TA1's priority: %02d\n",
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the_priority
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the_priority
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);
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);
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status = rtems_task_set_priority(
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status = rtems_task_set_priority(
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Task_id[ 1 ],
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Task_id[ 1 ],
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the_priority,
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the_priority,
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&previous_priority
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&previous_priority
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);
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);
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directive_failed( status, "rtems_task_set_priority" );
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directive_failed( status, "rtems_task_set_priority" );
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}
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}
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}
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}
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}
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}
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