source: rtems/cpukit/rtems/src/semtranslatereturncode.c @ 54d540f

4.104.114.84.95
Last change on this file since 54d540f was 8ce962c0, checked in by Joel Sherrill <joel.sherrill@…>, on 07/06/00 at 20:00:44

Modfied to execute faster and have fewer instructions.

  • Property mode set to 100644
File size: 3.4 KB
Line 
1/*
2 *  Semaphore Manager
3 *
4 *  DESCRIPTION:
5 *
6 *  This package is the implementation of the Semaphore Manager.
7 *  This manager utilizes standard Dijkstra counting semaphores to provide
8 *  synchronization and mutual exclusion capabilities.
9 *
10 *  Directives provided are:
11 *
12 *     + create a semaphore
13 *     + get an ID of a semaphore
14 *     + delete a semaphore
15 *     + acquire a semaphore
16 *     + release a semaphore
17 *
18 *  COPYRIGHT (c) 1989-1999.
19 *  On-Line Applications Research Corporation (OAR).
20 *
21 *  The license and distribution terms for this file may be
22 *  found in the file LICENSE in this distribution or at
23 *  http://www.OARcorp.com/rtems/license.html.
24 *
25 *  $Id$
26 */
27
28#include <rtems/system.h>
29#include <rtems/rtems/status.h>
30#include <rtems/rtems/support.h>
31#include <rtems/rtems/attr.h>
32#include <rtems/score/isr.h>
33#include <rtems/score/object.h>
34#include <rtems/rtems/options.h>
35#include <rtems/rtems/sem.h>
36#include <rtems/score/coremutex.h>
37#include <rtems/score/coresem.h>
38#include <rtems/score/states.h>
39#include <rtems/score/thread.h>
40#include <rtems/score/threadq.h>
41#if defined(RTEMS_MULTIPROCESSING)
42#include <rtems/score/mpci.h>
43#endif
44#include <rtems/score/sysstate.h>
45
46#include <rtems/score/interr.h>
47
48/*PAGE
49 *
50 *  _Semaphore_Translate_core_mutex_return_code
51 *
52 *  Input parameters:
53 *    the_mutex_status - mutex status code to translate
54 *
55 *  Output parameters:
56 *    rtems status code - translated RTEMS status code
57 *
58 */
59 
60rtems_status_code _Semaphore_Translate_core_mutex_return_code_[] = {
61  RTEMS_SUCCESSFUL,         /* CORE_MUTEX_STATUS_SUCCESSFUL */
62  RTEMS_UNSATISFIED,        /* CORE_MUTEX_STATUS_UNSATISFIED_NOWAIT */
63  RTEMS_UNSATISFIED,        /* CORE_MUTEX_STATUS_NESTING_NOT_ALLOWED */
64  RTEMS_NOT_OWNER_OF_RESOURCE, /* CORE_MUTEX_STATUS_NOT_OWNER_OF_RESOURCE */
65  RTEMS_OBJECT_WAS_DELETED, /* CORE_MUTEX_WAS_DELETED */
66  RTEMS_TIMEOUT,            /* CORE_MUTEX_TIMEOUT */
67  RTEMS_INTERNAL_ERROR,     /* CORE_MUTEX_STATUS_CEILING_VIOLATED */
68};
69
70
71rtems_status_code _Semaphore_Translate_core_mutex_return_code (
72  unsigned32 the_mutex_status
73)
74{
75#if defined(RTEMS_MULTIPROCESSING)
76  if ( the_mutex_status == THREAD_STATUS_PROXY_BLOCKING )
77    return RTEMS_PROXY_BLOCKING;
78  else
79#endif
80  if ( the_mutex_status > CORE_MUTEX_STATUS_CEILING_VIOLATED )
81    return RTEMS_INTERNAL_ERROR;
82  else
83    return _Semaphore_Translate_core_mutex_return_code_[the_mutex_status];
84}
85
86/*PAGE
87 *
88 *  _Semaphore_Translate_core_semaphore_return_code
89 *
90 *  Input parameters:
91 *    the_semaphore_status - semaphore status code to translate
92 *
93 *  Output parameters:
94 *    rtems status code - translated RTEMS status code
95 *
96 */
97 
98rtems_status_code _Semaphore_Translate_core_semaphore_return_code_[] = {
99  RTEMS_SUCCESSFUL,         /* CORE_SEMAPHORE_STATUS_SUCCESSFUL */
100  RTEMS_UNSATISFIED,        /* CORE_SEMAPHORE_STATUS_UNSATISFIED_NOWAIT */
101  RTEMS_OBJECT_WAS_DELETED, /* CORE_SEMAPHORE_WAS_DELETED */
102  RTEMS_TIMEOUT,            /* CORE_SEMAPHORE_TIMEOUT  */
103  RTEMS_INTERNAL_ERROR,     /* CORE_SEMAPHORE_MAXIMUM_COUNT_EXCEEDED */
104 
105};
106
107rtems_status_code _Semaphore_Translate_core_semaphore_return_code (
108  unsigned32 the_semaphore_status
109)
110{
111#if defined(RTEMS_MULTIPROCESSING)
112  if ( the_semaphore_status == THREAD_STATUS_PROXY_BLOCKING )
113    return RTEMS_PROXY_BLOCKING;
114  else
115#endif
116  if ( the_semaphore_status > CORE_MUTEX_STATUS_CEILING_VIOLATED )
117    return RTEMS_INTERNAL_ERROR;
118  else
119    return _Semaphore_Translate_core_semaphore_return_code_[the_semaphore_status];
120}
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