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/*
* COPYRIGHT (c) 2011.
* 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.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tmacros.h>
/*
* Keep the names and IDs in global variables so another task can use them.
*/
rtems_id Task_id[ 3 ]; /* array of task ids */
rtems_name Task_name[ 3 ]; /* array of task names */
rtems_name Semaphore_name[ 2 ];
rtems_id Semaphore_id[ 2 ];
rtems_task Test_task(
rtems_task_argument unused
)
{
rtems_id tid;
uint32_t task_index;
rtems_status_code status;
status = rtems_task_ident( RTEMS_SELF, RTEMS_SEARCH_ALL_NODES, &tid );
task_index = task_number( tid );
for ( ; ; ) {
rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
}
}
void ObtainRelease( bool suspendIdle )
{
rtems_status_code status;
if (suspendIdle) {
puts( "INIT - Suspend Idle Task");
status = rtems_task_suspend( _Thread_Idle->Object.id );
directive_failed( status, "rtems_task_suspend idle" );
}
puts( "INIT - Obtain priority ceiling semaphore - priority increases" );
status= rtems_semaphore_obtain( Semaphore_id[1], RTEMS_DEFAULT_OPTIONS, 0 );
directive_failed( status, "rtems_semaphore_obtain" );
puts( "INIT - Obtain priority ceiling semaphore - priority decreases" );
status = rtems_semaphore_release( Semaphore_id[1] );
directive_failed( status, "rtems_semaphore_release" );
if (suspendIdle) {
puts( "INIT - Resume Idle Task");
status = rtems_task_resume( _Thread_Idle->Object.id );
directive_failed( status, "rtems_task_resume idle" );
}
}
rtems_task Init(
rtems_task_argument argument
)
{
rtems_status_code status;
puts( "\n\n*** SIMPLE SCHEDULER 02 TEST ***" );
/*
* Create the semaphore. Then obtain and release the
* semaphore with no other tasks running.
*/
puts( "INIT - Create priority ceiling semaphore" );
Semaphore_name[ 1 ] = rtems_build_name( 'S', 'M', '1', ' ' );
status = rtems_semaphore_create(
Semaphore_name[ 1 ],
1,
RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY_CEILING | RTEMS_PRIORITY,
2,
&Semaphore_id[ 1 ]
);
directive_failed( status, "rtems_semaphore_create of SM1" );
ObtainRelease( false );
/*
* Create test task and obtain release the semaphore with
* one other task running.
*/
puts( "INIT - create task 1" );
Task_name[ 1 ] = rtems_build_name( 'T', 'A', '1', ' ' );
status = rtems_task_create(
Task_name[ 1 ], 1, RTEMS_MINIMUM_STACK_SIZE * 2, RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES, &Task_id[ 1 ]
);
status = rtems_task_start( Task_id[ 1 ], Test_task, 1 );
ObtainRelease( false );
/*
* Create a a second test task and obtain release the semaphore
* with both tasks running.
*/
puts( "INIT - create task 2" );
Task_name[ 1 ] = rtems_build_name( 'T', 'A', '2', ' ' );
status = rtems_task_create(
Task_name[ 2 ], 1, RTEMS_MINIMUM_STACK_SIZE * 2, RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES, &Task_id[ 2 ]
);
status = rtems_task_start( Task_id[ 2 ], Test_task, 1 );
ObtainRelease( false );
/*
* Obtain and release the semaphore with the idle task suspended.
*/
ObtainRelease( true );
/* End the Test */
puts( "*** END OF SIMPLE SCHEDULER 02 TEST ***" );
rtems_test_exit(0);
}
/* configuration information */
#define CONFIGURE_SCHEDULER_SIMPLE
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 3
#define CONFIGURE_MAXIMUM_SEMAPHORES 2
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_EXTRA_TASK_STACKS (3 * RTEMS_MINIMUM_STACK_SIZE)
#define CONFIGURE_INIT_TASK_PRIORITY 4
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of include file */
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