source: rtems/cpukit/sapi/src/extensioncreate.c @ ac97074f

4.104.114.84.95
Last change on this file since ac97074f was ac97074f, checked in by Joel Sherrill <joel.sherrill@…>, on Mar 15, 2002 at 2:32:22 PM

2001-03-15 Joel Sherrill <joel@…>

  • src/extension.c: Split to reduce minimum code size per PR134.
  • src/extensioncreate.c, src/extensiondelete.c, src/extensionident.c: New files. src/Makefile.am: Modified to reflect above.
  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2 *  Extension Manager -- rtems_extension_create
3 *
4 *
5 *  COPYRIGHT (c) 1989-2002.
6 *  On-Line Applications Research Corporation (OAR).
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.OARcorp.com/rtems/license.html.
11 *
12 *  $Id$
13 */
14
15#include <rtems/system.h>
16#include <rtems/rtems/support.h>
17#include <rtems/score/object.h>
18#include <rtems/score/thread.h>
19#include <rtems/extension.h>
20
21/*PAGE
22 *
23 *  rtems_extension_create
24 *
25 *  This directive creates a extension and performs some initialization.
26 *
27 *  Input parameters:
28 *    name            - extension name
29 *    extension_table - pointer to extension set information
30 *    id              - pointer to extension id
31 *
32 *  Output parameters:
33 *    id                - extension id
34 *    RTEMS_SUCCESSFUL - if successful
35 *    error code        - if unsuccessful
36 */
37
38rtems_status_code rtems_extension_create(
39  rtems_name              name,
40  rtems_extensions_table *extension_table,
41  Objects_Id             *id
42)
43{
44  Extension_Control *the_extension;
45
46  if ( !rtems_is_name_valid( name ) )
47    return RTEMS_INVALID_NAME;
48
49  _Thread_Disable_dispatch();         /* to prevent deletion */
50
51  the_extension = _Extension_Allocate();
52
53  if ( !the_extension ) {
54    _Thread_Enable_dispatch();
55    return RTEMS_TOO_MANY;
56  }
57
58  _User_extensions_Add_set( &the_extension->Extension, extension_table );
59
60  _Objects_Open( &_Extension_Information, &the_extension->Object, &name );
61
62  *id = the_extension->Object.id;
63  _Thread_Enable_dispatch();
64  return RTEMS_SUCCESSFUL;
65}
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