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+/* nodes-table.h : interface to `nodes' 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.
+ * ====================================================================
+ */
+
+#ifndef SVN_LIBSVN_FS_NODES_TABLE_H
+#define SVN_LIBSVN_FS_NODES_TABLE_H
+
+#define SVN_WANT_BDB
+#include "svn_private_config.h"
+
+#include "svn_fs.h"
+#include "../trail.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/* Creating and opening the `nodes' table. */
+
+
+/* Open a `nodes' table in ENV. If CREATE is non-zero, create
+ one if it doesn't exist. Set *NODES_P to the new table.
+ Return a Berkeley DB error code. */
+int svn_fs_bdb__open_nodes_table(DB **nodes_p,
+ DB_ENV *env,
+ svn_boolean_t create);
+
+
+/* Check FS's `nodes' table to find an unused node number, and set
+ *ID_P to the ID of the first revision of an entirely new node in
+ FS, with copy_id COPY_ID, created in transaction TXN_ID, as part
+ of TRAIL. Allocate the new ID, and do all temporary allocation,
+ in POOL. */
+svn_error_t *svn_fs_bdb__new_node_id(svn_fs_id_t **id_p,
+ svn_fs_t *fs,
+ const char *copy_id,
+ const char *txn_id,
+ trail_t *trail,
+ apr_pool_t *pool);
+
+
+/* Delete node revision ID from FS's `nodes' table, as part of TRAIL.
+ WARNING: This does not check that the node revision is mutable!
+ Callers should do that check themselves.
+
+ todo: Jim and Karl are both not sure whether it would be better for
+ this to check mutability or not. On the one hand, having the
+ lowest level do that check would seem intuitively good. On the
+ other hand, we'll need a way to delete even immutable nodes someday
+ -- for example, someone accidentally commits NDA-protected data to
+ a public repository and wants to remove it. Thoughts? */
+svn_error_t *svn_fs_bdb__delete_nodes_entry(svn_fs_t *fs,
+ const svn_fs_id_t *id,
+ trail_t *trail,
+ apr_pool_t *pool);
+
+
+/* Set *SUCCESSOR_P to the ID of an immediate successor to node
+ revision ID in FS that does not exist yet, as part of TRAIL.
+ Allocate *SUCCESSOR_P in POOL.
+
+ Use the current Subversion transaction name TXN_ID, and optionally
+ a copy id COPY_ID, in the determination of the new node revision
+ ID. */
+svn_error_t *svn_fs_bdb__new_successor_id(svn_fs_id_t **successor_p,
+ svn_fs_t *fs,
+ const svn_fs_id_t *id,
+ const char *copy_id,
+ const char *txn_id,
+ trail_t *trail,
+ apr_pool_t *pool);
+
+
+/* Set *NODEREV_P to the node-revision for the node ID in FS, as
+ part of TRAIL. Do any allocations in POOL. Allow NODEREV_P
+ to be NULL, in which case it is not used, and this function acts as
+ an existence check for ID in FS. */
+svn_error_t *svn_fs_bdb__get_node_revision(node_revision_t **noderev_p,
+ svn_fs_t *fs,
+ const svn_fs_id_t *id,
+ trail_t *trail,
+ apr_pool_t *pool);
+
+
+/* Store NODEREV as the node-revision for the node whose id
+ is ID in FS, as part of TRAIL. Do any necessary temporary
+ allocation in POOL.
+
+ After this call, the node table manager assumes that NODE's
+ contents will change frequently. */
+svn_error_t *svn_fs_bdb__put_node_revision(svn_fs_t *fs,
+ const svn_fs_id_t *id,
+ node_revision_t *noderev,
+ trail_t *trail,
+ apr_pool_t *pool);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* SVN_LIBSVN_FS_NODES_TABLE_H */
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