blob: 2cc0cc37b2f2f9cc61194aa7c5639171ed2c40c0 (
plain) (
tree)
|
|
/* Priority_task
*
* This routine serves as a test task. It verifies the semaphore manager.
*
* Input parameters:
* its_index - priority index
*
* Output parameters: NONE
*
* COPYRIGHT (c) 1989-1997.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* 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 "system.h"
rtems_task Priority_task(
rtems_task_argument its_index
)
{
rtems_interval timeout;
rtems_task_priority its_priority;
rtems_task_priority current_priority;
rtems_status_code status;
rtems_unsigned32 index;
its_priority = Task_priority[ its_index ];
if ( its_priority < 3 )
timeout = 5 * TICKS_PER_SECOND;
else
timeout = RTEMS_NO_TIMEOUT;
put_name( Priority_task_name[ its_index ], FALSE );
puts( " - rtems_semaphore_obtain - wait forever on SM2" );
status = rtems_semaphore_obtain(
Semaphore_id[ 2 ],
RTEMS_DEFAULT_OPTIONS,
timeout
);
directive_failed( status, "rtems_semaphore_obtain of SM2" );
if ( its_priority < 64 ) {
printf( "PRI%d - WHY AM I HERE? (pri=%d)", its_index, its_priority );
exit( 0 );
}
if ( its_index == 5 )
puts( "PRI5 - rtems_task_suspend - until all priority tasks blocked" );
status = rtems_task_suspend( RTEMS_SELF );
directive_failed( status, "rtems_task_suspend" );
puts( "PRI5 - rtems_task_delete - all tasks waiting on SM2" );
for ( index = 1 ; index < 5 ; index++ ) {
status = rtems_task_delete( Priority_task_id[ index ] );
directive_failed( status, "rtems_task_delete loop" );
}
puts( "PRI5 - rtems_semaphore_obtain - nested" );
status = rtems_semaphore_obtain(
Semaphore_id[ 2 ],
RTEMS_DEFAULT_OPTIONS,
timeout
);
directive_failed( status, "rtems_semaphore_obtain nested" );
puts( "PRI5 - rtems_semaphore_release - nested" );
status = rtems_semaphore_release( Semaphore_id[ 2 ] );
directive_failed( status, "rtems_semaphore_release nested " );
puts( "PRI5 - rtems_semaphore_release - restore priority" );
status = rtems_semaphore_release( Semaphore_id[ 2 ] );
directive_failed( status, "rtems_semaphore_release" );
status = rtems_task_set_priority(
RTEMS_SELF,
RTEMS_CURRENT_PRIORITY,
¤t_priority
);
directive_failed( status, "PRI5 rtems_task_set_priority CURRENT" );
printf( "PRI5 - priority of PRI5 is %d\n", current_priority );
(void) rtems_task_suspend( RTEMS_SELF );
}
|