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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [tests/] [tmtests/] [tm11/] [task1.c] - Rev 173
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/* * * COPYRIGHT (c) 1989-1999. * 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.OARcorp.com/rtems/license.html. * * $Id: task1.c,v 1.2 2001-09-27 12:02:42 chris Exp $ */ #define TEST_INIT #include "system.h" rtems_id Queue_id; long Buffer[4]; rtems_task test_init( rtems_task_argument argument ); rtems_task Middle_tasks( rtems_task_argument argument ); rtems_task High_task( rtems_task_argument argument ); void Init( rtems_task_argument argument ) { rtems_status_code status; rtems_id id; Print_Warning(); puts( "\n\n*** TIME TEST 11 ***" ); status = rtems_task_create( 1, 251, RTEMS_MINIMUM_STACK_SIZE, RTEMS_DEFAULT_MODES, RTEMS_DEFAULT_ATTRIBUTES, &id ); directive_failed( status, "rtems_task_create" ); status = rtems_task_start( id, test_init, 0 ); directive_failed( status, "rtems_task_start" ); status = rtems_task_delete( RTEMS_SELF ); directive_failed( status, "rtems_task_delete of RTEMS_SELF" ); } #define MESSAGE_SIZE (sizeof(long) * 4) rtems_task test_init( rtems_task_argument argument ) { rtems_unsigned32 index; rtems_task_entry task_entry; rtems_task_priority priority; rtems_id task_id; rtems_status_code status; /* As each task is started, it preempts this task and * performs a blocking rtems_message_queue_receive. Upon completion of * this loop all created tasks are blocked. */ status = rtems_message_queue_create( rtems_build_name( 'M', 'Q', '1', ' ' ), OPERATION_COUNT, MESSAGE_SIZE, RTEMS_DEFAULT_ATTRIBUTES, &Queue_id ); directive_failed( status, "rtems_message_queue_create" ); priority = 250; for( index = 0; index < OPERATION_COUNT ; index++ ) { status = rtems_task_create( rtems_build_name( 'T', 'I', 'M', 'E' ), priority, RTEMS_MINIMUM_STACK_SIZE, RTEMS_DEFAULT_MODES, RTEMS_DEFAULT_ATTRIBUTES, &task_id ); directive_failed( status, "rtems_task_create LOOP" ); priority--; if ( index==OPERATION_COUNT-1 ) task_entry = High_task; else task_entry = Middle_tasks; status = rtems_task_start( task_id, task_entry, 0 ); directive_failed( status, "rtems_task_start LOOP" ); } Timer_initialize(); (void) rtems_message_queue_send( Queue_id, Buffer, MESSAGE_SIZE ); } rtems_task Middle_tasks( rtems_task_argument argument ) { rtems_unsigned32 size; (void) rtems_message_queue_receive( Queue_id, (long (*)[4]) Buffer, &size, RTEMS_DEFAULT_OPTIONS, RTEMS_NO_TIMEOUT ); (void) rtems_message_queue_send( Queue_id, (long (*)[4]) Buffer, size ); } rtems_task High_task( rtems_task_argument argument ) { rtems_unsigned32 size; (void) rtems_message_queue_receive( Queue_id, (long (*)[4]) Buffer, &size, RTEMS_DEFAULT_OPTIONS, RTEMS_NO_TIMEOUT ); end_time = Read_timer(); put_time( "rtems_message_queue_send: task readied -- preempts caller", end_time, OPERATION_COUNT, 0, CALLING_OVERHEAD_MESSAGE_QUEUE_SEND ); puts( "*** END OF TEST 11 ***" ); exit( 0 ); }