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/*

 *  Extension Manager -- rtems_extension_create

 *

 *

 *  COPYRIGHT (c) 1989-2002.

 *  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.

 *

 *  extensioncreate.c,v 1.1 2002/03/15 14:32:22 joel Exp

 */

#include <rtems/system.h>

#include <rtems/rtems/support.h>

#include <rtems/score/object.h>

#include <rtems/score/thread.h>

#include <rtems/extension.h>

/*PAGE

 *

 *  rtems_extension_create

 *

 *  This directive creates a extension and performs some initialization.

 *

 *  Input parameters:

 *    name            - extension name

 *    extension_table - pointer to extension set information

 *    id              - pointer to extension id

 *

 *  Output parameters:

 *    id                - extension id

 *    RTEMS_SUCCESSFUL - if successful

 *    error code        - if unsuccessful

 */

rtems_status_code rtems_extension_create(

  rtems_name              name,

  rtems_extensions_table *extension_table,

  Objects_Id             *id

)

{

  Extension_Control *the_extension;

  if ( !rtems_is_name_valid( name ) )

    return RTEMS_INVALID_NAME;

  _Thread_Disable_dispatch();         /* to prevent deletion */

  the_extension = _Extension_Allocate();

  if ( !the_extension ) {

    _Thread_Enable_dispatch();

    return RTEMS_TOO_MANY;

  }

  _User_extensions_Add_set( &the_extension->Extension, extension_table );

  _Objects_Open( &_Extension_Information, &the_extension->Object, &name );

  *id = the_extension->Object.id;

  _Thread_Enable_dispatch();

  return RTEMS_SUCCESSFUL;

}