forked from Imagelibrary/rtems
151 lines
3.3 KiB
C
151 lines
3.3 KiB
C
/*
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* COPYRIGHT (c) 1989-2013.
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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.rtems.org/license/LICENSE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#define CONFIGURE_INIT
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#include "system.h"
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rtems_id Semaphore_id;
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rtems_task test_init(
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rtems_task_argument argument
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);
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rtems_task Middle_tasks(
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rtems_task_argument argument
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);
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rtems_task High_task(
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rtems_task_argument argument
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);
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int operation_count = OPERATION_COUNT;
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rtems_task Init(
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rtems_task_argument argument
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)
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{
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rtems_status_code status;
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rtems_id task_id;
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Print_Warning();
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puts( "\n\n*** TIME TEST 3 ***" );
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status = rtems_task_create(
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rtems_build_name( 'T', 'A', '1', ' ' ),
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RTEMS_MAXIMUM_PRIORITY - 1u,
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RTEMS_MINIMUM_STACK_SIZE,
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RTEMS_DEFAULT_MODES,
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RTEMS_DEFAULT_ATTRIBUTES,
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&task_id
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);
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directive_failed( status, "rtems_task_create of test_init" );
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status = rtems_task_start( task_id, test_init, 0 );
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directive_failed( status, "rtems_task_start of test_init" );
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status = rtems_task_delete( RTEMS_SELF );
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directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
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}
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rtems_task test_init(
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rtems_task_argument argument
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)
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{
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rtems_status_code status;
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int index;
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rtems_id task_id;
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rtems_task_priority priority;
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priority = RTEMS_MAXIMUM_PRIORITY - 2u;
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status = rtems_semaphore_create(
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rtems_build_name( 'S', 'M', '1', '\0'),
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0,
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RTEMS_DEFAULT_ATTRIBUTES,
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RTEMS_NO_PRIORITY,
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&Semaphore_id
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);
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directive_failed( status, "rtems_semaphore_create of SM1" );
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if ( OPERATION_COUNT > RTEMS_MAXIMUM_PRIORITY - 2u )
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operation_count = (int) (RTEMS_MAXIMUM_PRIORITY - 2u);
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for ( index = 2 ; index < operation_count ; index ++ ) {
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rtems_task_create(
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rtems_build_name( 'M', 'I', 'D', ' ' ),
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priority,
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RTEMS_MINIMUM_STACK_SIZE,
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RTEMS_DEFAULT_MODES,
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RTEMS_DEFAULT_ATTRIBUTES,
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&task_id
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);
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directive_failed( status, "rtems_task_create middle" );
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priority--;
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rtems_task_start( task_id, Middle_tasks, 0 );
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directive_failed( status, "rtems_task_start middle" );
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}
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status = rtems_task_create(
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rtems_build_name( 'H', 'I', 'G', 'H' ),
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priority,
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RTEMS_MINIMUM_STACK_SIZE,
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RTEMS_DEFAULT_MODES,
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RTEMS_DEFAULT_ATTRIBUTES,
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&task_id
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);
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directive_failed( status, "rtems_task_create of high task" );
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status = rtems_task_start( task_id, High_task, 0 );
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directive_failed( status, "rtems_task_start of high task" );
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benchmark_timer_initialize(); /* start the timer */
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status = rtems_semaphore_release( Semaphore_id );
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}
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rtems_task Middle_tasks(
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rtems_task_argument argument
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)
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{
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(void) rtems_semaphore_obtain(
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Semaphore_id,
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RTEMS_DEFAULT_OPTIONS,
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RTEMS_NO_TIMEOUT
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);
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(void) rtems_semaphore_release( Semaphore_id );
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}
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rtems_task High_task(
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rtems_task_argument argument
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)
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{
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(void) rtems_semaphore_obtain(
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Semaphore_id,
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RTEMS_DEFAULT_OPTIONS,
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RTEMS_NO_TIMEOUT
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);
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end_time = benchmark_timer_read();
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put_time(
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"rtems_semaphore_release: task readied preempts caller",
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end_time,
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operation_count - 1,
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0,
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CALLING_OVERHEAD_SEMAPHORE_RELEASE
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);
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puts( "*** END OF TEST 3 ***" );
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rtems_test_exit( 0 );
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}
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