/* * * COPYRIGHT (c) 1989-2013. * 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. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #define CONFIGURE_INIT #include "system.h" const char rtems_test_name[] = "TIME TEST 22"; rtems_id Queue_id; long Buffer[4]; rtems_task Low_task( rtems_task_argument argument ); rtems_task High_task( rtems_task_argument argument ); rtems_task Preempt_task( rtems_task_argument argument ); rtems_task Init( rtems_task_argument argument ) { rtems_id id; rtems_status_code status; Print_Warning(); TEST_BEGIN(); status = rtems_message_queue_create( rtems_build_name( 'M', 'Q', '1', ' '), 100, MESSAGE_SIZE, RTEMS_DEFAULT_ATTRIBUTES, &Queue_id ); directive_failed( status, "rtems_message_queue_create" ); status = rtems_task_create( rtems_build_name( 'L', 'O', 'W', ' ' ), 10, RTEMS_MINIMUM_STACK_SIZE, RTEMS_NO_PREEMPT, RTEMS_DEFAULT_ATTRIBUTES, &id ); directive_failed( status, "rtems_task_create" ); status = rtems_task_start( id, Low_task, 0 ); directive_failed( status, "rtems_task_start LOW" ); status = rtems_task_create( 1, 11, RTEMS_MINIMUM_STACK_SIZE, RTEMS_DEFAULT_MODES, RTEMS_DEFAULT_ATTRIBUTES, &id ); directive_failed( status, "rtems_task_create RTEMS_PREEMPT" ); status = rtems_task_start( id, Preempt_task, 0 ); directive_failed( status, "rtems_task_start RTEMS_PREEMPT" ); rtems_task_exit(); } rtems_task High_task( rtems_task_argument argument ) { uint32_t count; rtems_status_code status; benchmark_timer_initialize(); (void) rtems_message_queue_broadcast( Queue_id, Buffer, MESSAGE_SIZE, &count ); end_time = benchmark_timer_read(); put_time( "rtems_message_queue_broadcast: task readied returns to caller", end_time, 1, 0, 0 ); status = rtems_task_suspend(RTEMS_SELF); directive_failed( status, "rtems_task_suspend" ); } rtems_task Low_task( rtems_task_argument argument ) { rtems_id id; uint32_t index; uint32_t count; size_t size; rtems_status_code status; status = rtems_task_create( rtems_build_name( 'H', 'I', 'G', 'H' ), 5, RTEMS_MINIMUM_STACK_SIZE, RTEMS_NO_PREEMPT, RTEMS_DEFAULT_ATTRIBUTES, &id ); directive_failed( status, "rtems_task_create" ); status = rtems_task_start( id, High_task, 0 ); directive_failed( status, "rtems_task_start HIGH" ); status = rtems_message_queue_receive( Queue_id, (long (*)[4]) Buffer, &size, RTEMS_DEFAULT_OPTIONS, RTEMS_NO_TIMEOUT ); directive_failed( status, "message_queu_receive" ); benchmark_timer_initialize(); for ( index=1 ; index <= OPERATION_COUNT ; index++ ) (void) rtems_message_queue_broadcast( Queue_id, Buffer, MESSAGE_SIZE, &count ); end_time = benchmark_timer_read(); put_time( "rtems_message_queue_broadcast: no waiting tasks", end_time, OPERATION_COUNT, 1, 0 ); (void) rtems_message_queue_receive( Queue_id, (long (*)[4]) Buffer, &size, RTEMS_DEFAULT_OPTIONS, RTEMS_NO_TIMEOUT ); /* should go to Preempt_task here */ end_time = benchmark_timer_read(); put_time( "rtems_message_queue_broadcast: task readied -- preempts caller", end_time, 1, 0, 0 ); TEST_END(); rtems_test_exit( 0 ); } rtems_task Preempt_task( rtems_task_argument argument ) { uint32_t count; benchmark_timer_initialize(); (void) rtems_message_queue_broadcast( Queue_id, Buffer, MESSAGE_SIZE, &count ); /* should be preempted by low task */ }