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/*
* COPYRIGHT (c) 1989-2009.
* 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.org/license/LICENSE.
*/
#if !defined(OPERATION_COUNT)
#define OPERATION_COUNT 100
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define CONFIGURE_INIT
#include "system.h"
const char rtems_test_name[] = "TIME TEST 17";
uint32_t Task_count;
rtems_task_priority Task_priority;
rtems_task First_task(
rtems_task_argument argument
);
rtems_task Middle_tasks(
rtems_task_argument argument
);
rtems_task Last_task(
rtems_task_argument argument
);
int operation_count = OPERATION_COUNT;
rtems_task Init(
rtems_task_argument argument
)
{
rtems_task_entry task_entry;
int index;
rtems_status_code status;
Print_Warning();
TEST_BEGIN();
Task_priority = RTEMS_MAXIMUM_PRIORITY - 1u;
if ( OPERATION_COUNT > RTEMS_MAXIMUM_PRIORITY - 2u )
operation_count = (int) (RTEMS_MAXIMUM_PRIORITY - 2u);
for( index = 0; index < operation_count ; index++ ) {
status = rtems_task_create(
rtems_build_name( 'T', 'I', 'M', 'E' ),
Task_priority,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&Task_id[ index ]
);
directive_failed( status, "rtems_task_create loop" );
if ( index == operation_count-1 ) task_entry = Last_task;
else if ( index == 0 ) task_entry = First_task;
else task_entry = Middle_tasks;
status = rtems_task_start( Task_id[ index ], task_entry, 0 );
directive_failed( status, "rtems_task_start loop" );
}
Task_count = 1;
rtems_task_exit();
}
rtems_task First_task(
rtems_task_argument argument
)
{
rtems_task_priority previous_priority;
benchmark_timer_initialize();
Task_priority--;
Task_count++;
(void) rtems_task_set_priority(
Task_id[ Task_count ],
Task_priority,
&previous_priority
);
}
rtems_task Middle_tasks(
rtems_task_argument argument
)
{
rtems_task_priority previous_priority;
Task_priority--;
Task_count++;
(void) rtems_task_set_priority(
Task_id[ Task_count ],
Task_priority,
&previous_priority
);
}
rtems_task Last_task(
rtems_task_argument argument
)
{
int index;
end_time = benchmark_timer_read();
benchmark_timer_initialize();
for ( index=1 ; index < operation_count ; index++ )
(void) benchmark_timer_empty_function();
overhead = benchmark_timer_read();
put_time(
"rtems_task_set_priority: preempts caller",
end_time,
operation_count - 1u,
overhead,
0
);
TEST_END();
rtems_test_exit( 0 );
}
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