1/*
2 * err.c : implementation of fs-private error functions
3 *
4 * ====================================================================
5 *    Licensed to the Apache Software Foundation (ASF) under one
6 *    or more contributor license agreements.  See the NOTICE file
7 *    distributed with this work for additional information
8 *    regarding copyright ownership.  The ASF licenses this file
9 *    to you under the Apache License, Version 2.0 (the
10 *    "License"); you may not use this file except in compliance
11 *    with the License.  You may obtain a copy of the License at
12 *
13 *      http://www.apache.org/licenses/LICENSE-2.0
14 *
15 *    Unless required by applicable law or agreed to in writing,
16 *    software distributed under the License is distributed on an
17 *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
18 *    KIND, either express or implied.  See the License for the
19 *    specific language governing permissions and limitations
20 *    under the License.
21 * ====================================================================
22 */
23
24
25
26#include <stdlib.h>
27#include <stdarg.h>
28
29#include <apr_strings.h>
30
31#include "svn_fs.h"
32#include "../fs.h"
33#include "../err.h"
34#include "../../libsvn_fs/fs-loader.h"
35#include "bdb-err.h"
36
37#define SVN_WANT_BDB
38#include "svn_private_config.h"
39
40
41/* Return a distinguished error for any db error code we want to detect
42 * programatically; otherwise return a generic error.
43 */
44static int
45bdb_err_to_apr_err(int db_err)
46{
47  if (db_err == DB_LOCK_DEADLOCK)
48    return SVN_ERR_FS_BERKELEY_DB_DEADLOCK;
49  else
50    return SVN_ERR_FS_BERKELEY_DB;
51}
52
53
54svn_error_t *
55svn_fs_bdb__dberr(bdb_env_baton_t *bdb_baton, int db_err)
56{
57  svn_error_t *child_errors;
58
59  child_errors = bdb_baton->error_info->pending_errors;
60  bdb_baton->error_info->pending_errors = NULL;
61
62  return svn_error_create(bdb_err_to_apr_err(db_err), child_errors,
63                          db_strerror(db_err));
64}
65
66
67svn_error_t *
68svn_fs_bdb__dberrf(bdb_env_baton_t *bdb_baton,
69                   int db_err, const char *fmt, ...)
70{
71  va_list ap;
72  char *msg;
73  svn_error_t *err;
74  svn_error_t *child_errors;
75
76  child_errors = bdb_baton->error_info->pending_errors;
77  bdb_baton->error_info->pending_errors = NULL;
78
79  err = svn_error_create(bdb_err_to_apr_err(db_err), child_errors, NULL);
80
81  va_start(ap, fmt);
82  msg = apr_pvsprintf(err->pool, fmt, ap);
83  va_end(ap);
84  err->message = apr_psprintf(err->pool, "%s%s", msg, db_strerror(db_err));
85  return svn_error_trace(err);
86}
87
88
89svn_error_t *
90svn_fs_bdb__wrap_db(svn_fs_t *fs, const char *operation, int db_err)
91{
92  base_fs_data_t *bfd = fs->fsap_data;
93
94  if (! db_err)
95    {
96      svn_error_clear(bfd->bdb->error_info->pending_errors);
97      bfd->bdb->error_info->pending_errors = NULL;
98      return SVN_NO_ERROR;
99    }
100
101  bfd = fs->fsap_data;
102  return svn_fs_bdb__dberrf
103    (bfd->bdb, db_err,
104     _("Berkeley DB error for filesystem '%s' while %s:\n"),
105     fs->path ? fs->path : "(none)", _(operation));
106}
107