1 files changed, 126 insertions, 0 deletions
diff --git a/subversion/libsvn_fs_base/node-rev.c b/subversion/libsvn_fs_base/node-rev.c
new file mode 100644
index 0000000..949a24b
--- /dev/null
+++ b/subversion/libsvn_fs_base/node-rev.c
@@ -0,0 +1,126 @@
+/* node-rev.c --- storing and retrieving NODE-REVISION skels
+ *
+ * ====================================================================
+ *    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>
+
+#define SVN_WANT_BDB
+#include "svn_private_config.h"
+
+#include "svn_fs.h"
+#include "fs.h"
+#include "err.h"
+#include "node-rev.h"
+#include "reps-strings.h"
+#include "id.h"
+#include "../libsvn_fs/fs-loader.h"
+
+#include "bdb/nodes-table.h"
+#include "bdb/node-origins-table.h"
+
+
+/* Creating completely new nodes.  */
+
+
+svn_error_t *
+svn_fs_base__create_node(const svn_fs_id_t **id_p,
+                         svn_fs_t *fs,
+                         node_revision_t *noderev,
+                         const char *copy_id,
+                         const char *txn_id,
+                         trail_t *trail,
+                         apr_pool_t *pool)
+{
+  svn_fs_id_t *id;
+  base_fs_data_t *bfd = fs->fsap_data;
+
+  /* Find an unused ID for the node.  */
+  SVN_ERR(svn_fs_bdb__new_node_id(&id, fs, copy_id, txn_id, trail, pool));
+
+  /* Store its NODE-REVISION skel.  */
+  SVN_ERR(svn_fs_bdb__put_node_revision(fs, id, noderev, trail, pool));
+
+  /* Add a record in the node origins index table if our format
+     supports it.  */
+  if (bfd->format >= SVN_FS_BASE__MIN_NODE_ORIGINS_FORMAT)
+    {
+      SVN_ERR(svn_fs_bdb__set_node_origin(fs, svn_fs_base__id_node_id(id),
+                                          id, trail, pool));
+    }
+
+  *id_p = id;
+  return SVN_NO_ERROR;
+}
+
+
+
+/* Creating new revisions of existing nodes.  */
+
+svn_error_t *
+svn_fs_base__create_successor(const svn_fs_id_t **new_id_p,
+                              svn_fs_t *fs,
+                              const svn_fs_id_t *old_id,
+                              node_revision_t *new_noderev,
+                              const char *copy_id,
+                              const char *txn_id,
+                              trail_t *trail,
+                              apr_pool_t *pool)
+{
+  svn_fs_id_t *new_id;
+
+  /* Choose an ID for the new node, and store it in the database.  */
+  SVN_ERR(svn_fs_bdb__new_successor_id(&new_id, fs, old_id, copy_id,
+                                       txn_id, trail, pool));
+
+  /* Store the new skel under that ID.  */
+  SVN_ERR(svn_fs_bdb__put_node_revision(fs, new_id, new_noderev,
+                                        trail, pool));
+
+  *new_id_p = new_id;
+  return SVN_NO_ERROR;
+}
+
+
+
+/* Deleting a node revision. */
+
+svn_error_t *
+svn_fs_base__delete_node_revision(svn_fs_t *fs,
+                                  const svn_fs_id_t *id,
+                                  svn_boolean_t origin_also,
+                                  trail_t *trail,
+                                  apr_pool_t *pool)
+{
+  base_fs_data_t *bfd = fs->fsap_data;
+
+  /* ### todo: here, we should adjust other nodes to compensate for
+     the missing node. */
+
+  /* Delete the node origin record, too, if asked to do so and our
+     format supports it. */
+  if (origin_also && (bfd->format >= SVN_FS_BASE__MIN_NODE_ORIGINS_FORMAT))
+    {
+      SVN_ERR(svn_fs_bdb__delete_node_origin(fs, svn_fs_base__id_node_id(id),
+                                             trail, pool));
+    }
+
+  return svn_fs_bdb__delete_nodes_entry(fs, id, trail, pool);
+}