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* user/example.texi: Change all obsoleted CONFIGURE_TEST_NEEDS_XXX configuration constants to CONFIGURE_APPLICATION_NEEDS_XXX.
89 lines
2.1 KiB
Plaintext
89 lines
2.1 KiB
Plaintext
@c
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@c COPYRIGHT (c) 1988-2002.
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@c On-Line Applications Research Corporation (OAR).
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@c All rights reserved.
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@c
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@c $Id$
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@c
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@ifinfo
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@node Example Application, Glossary, Directive Status Codes, Top
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@end ifinfo
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@chapter Example Application
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@example
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/*
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* This file contains an example of a simple RTEMS
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* application. It instantiates the RTEMS Configuration
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* Information using confdef.h and contains two tasks:
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* a * user initialization task and a simple task.
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*
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* This example assumes that a board support package exists.
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*/
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#include <rtems.h>
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rtems_task user_application(rtems_task_argument argument);
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rtems_task init_task(
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rtems_task_argument ignored
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)
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@{
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rtems_id tid;
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rtems_status_code status;
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rtems_name name;
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name = rtems_build_name( 'A', 'P', 'P', '1' )
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status = rtems_task_create(
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name, 1, RTEMS_MINIMUM_STACK_SIZE,
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RTEMS_NO_PREEMPT, RTEMS_FLOATING_POINT, &tid
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);
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if ( status != RTEMS_STATUS_SUCCESSFUL ) @{
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printf( "rtems_task_create failed with status of %d.\n", status );
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exit( 1 );
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@}
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status = rtems_task_start( tid, user_application, 0 );
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if ( status != RTEMS_STATUS_SUCCESSFUL ) @{
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printf( "rtems_task_start failed with status of %d.\n", status );
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exit( 1 );
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@}
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status = rtems_task_delete( SELF ); /* should not return */
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printf( "rtems_task_delete returned with status of %d.\n", status );
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exit( 1 );
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@}
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rtems_task user_application(rtems_task_argument argument)
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@{
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/* application specific initialization goes here */
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while ( 1 ) @{ /* infinite loop */
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/* APPLICATION CODE GOES HERE
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*
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* This code will typically include at least one
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* directive which causes the calling task to
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* give up the processor.
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*/
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@}
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@}
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#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER /* for stdio */
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#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER /* for time services */
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#define CONFIGURE_MAXIMUM_TASKS 2
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#define CONFIGURE_INIT_TASK_NAME rtems_build_name( 'E', 'X', 'A', 'M' )
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#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
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#define CONFIGURE_INIT
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#include <confdefs.h>
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@end example
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