1 files changed, 135 insertions, 0 deletions
diff --git a/subversion/libsvn_fs_base/bdb/miscellaneous-table.c b/subversion/libsvn_fs_base/bdb/miscellaneous-table.c
new file mode 100644
index 0000000000000..21a05ca857a5b
--- /dev/null
+++ b/subversion/libsvn_fs_base/bdb/miscellaneous-table.c
@@ -0,0 +1,135 @@
+/* miscellaneous-table.c : operations on the `miscellaneous' table
+ *
+ * ====================================================================
+ *    Licensed to the Apache Software Foundation (ASF) under one
+ *    or more contributor license agreements.  See the NOTICE file
+ *    distributed with this work for additional information
+ *    regarding copyright ownership.  The ASF licenses this file
+ *    to you under the Apache License, Version 2.0 (the
+ *    "License"); you may not use this file except in compliance
+ *    with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing,
+ *    software distributed under the License is distributed on an
+ *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *    KIND, either express or implied.  See the License for the
+ *    specific language governing permissions and limitations
+ *    under the License.
+ * ====================================================================
+ */
+
+#include <string.h>
+#include <assert.h>
+#include "bdb_compat.h"
+
+#include "svn_pools.h"
+#include "dbt.h"
+#include "../err.h"
+#include "../fs.h"
+#include "../trail.h"
+#include "../../libsvn_fs/fs-loader.h"
+#include "bdb-err.h"
+#include "miscellaneous-table.h"
+
+#include "private/svn_fs_util.h"
+
+
+int
+svn_fs_bdb__open_miscellaneous_table(DB **miscellaneous_p,
+                                     DB_ENV *env,
+                                     svn_boolean_t create)
+{
+  const u_int32_t open_flags = (create ? (DB_CREATE | DB_EXCL) : 0);
+  DB *miscellaneous;
+  int error;
+
+  BDB_ERR(svn_fs_bdb__check_version());
+  BDB_ERR(db_create(&miscellaneous, env, 0));
+  error = (miscellaneous->open)(SVN_BDB_OPEN_PARAMS(miscellaneous, NULL),
+                                "miscellaneous", 0, DB_BTREE,
+                                open_flags, 0666);
+
+  /* Create the table if it doesn't yet exist.  This is a form of
+     automagical repository upgrading. */
+  if (error == ENOENT && (! create))
+    {
+      BDB_ERR(miscellaneous->close(miscellaneous, 0));
+      return svn_fs_bdb__open_miscellaneous_table(miscellaneous_p, env, TRUE);
+    }
+  BDB_ERR(error);
+
+  /* If we're creating the table from scratch (not upgrading), record the
+     upgrade rev as 0. */
+  if (create)
+    {
+      DBT key, value;
+
+      BDB_ERR(miscellaneous->put
+              (miscellaneous, 0,
+               svn_fs_base__str_to_dbt
+               (&key, SVN_FS_BASE__MISC_FORWARD_DELTA_UPGRADE),
+               svn_fs_base__str_to_dbt(&value, "0"), 0));
+    }
+
+  *miscellaneous_p = miscellaneous;
+  return 0;
+}
+
+
+svn_error_t *
+svn_fs_bdb__miscellaneous_set(svn_fs_t *fs,
+                              const char *key_str,
+                              const char *val,
+                              trail_t *trail,
+                              apr_pool_t *pool)
+{
+  base_fs_data_t *bfd = fs->fsap_data;
+  DBT key, value;
+
+  svn_fs_base__str_to_dbt(&key, key_str);
+  if (val == NULL)
+    {
+      svn_fs_base__trail_debug(trail, "miscellaneous", "del");
+      return BDB_WRAP(fs, N_("deleting record from 'miscellaneous' table"),
+                      bfd->miscellaneous->del(bfd->miscellaneous,
+                                              trail->db_txn, &key, 0));
+    }
+  else
+    {
+      svn_fs_base__str_to_dbt(&value, val);
+      svn_fs_base__trail_debug(trail, "miscellaneous", "add");
+      return BDB_WRAP(fs, N_("storing miscellaneous record"),
+                      bfd->miscellaneous->put(bfd->miscellaneous,
+                                              trail->db_txn,
+                                              &key, &value, 0));
+    }
+}
+
+
+svn_error_t *
+svn_fs_bdb__miscellaneous_get(const char **val,
+                              svn_fs_t *fs,
+                              const char *key_str,
+                              trail_t *trail,
+                              apr_pool_t *pool)
+{
+  base_fs_data_t *bfd = fs->fsap_data;
+  DBT key, value;
+  int db_err;
+
+  *val = NULL;
+  svn_fs_base__trail_debug(trail, "miscellaneous", "get");
+  db_err = bfd->miscellaneous->get(bfd->miscellaneous, trail->db_txn,
+                                   svn_fs_base__str_to_dbt(&key, key_str),
+                                   svn_fs_base__result_dbt(&value), 0);
+  svn_fs_base__track_dbt(&value, pool);
+
+  if (db_err != DB_NOTFOUND)
+    {
+      SVN_ERR(BDB_WRAP(fs, N_("fetching miscellaneous record"), db_err));
+      *val = apr_pstrmemdup(pool, value.data, value.size);
+    }
+  return SVN_NO_ERROR;
+}