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+/* tree.h : internal interface to tree node functions
+ *
+ * ====================================================================
+ * 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_TREE_H
+#define SVN_LIBSVN_FS_TREE_H
+
+#include "fs.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+
+/* In RESULT_POOL, create an instance of a DAG node 1st level cache. */
+svn_fs_x__dag_cache_t*
+svn_fs_x__create_dag_cache(apr_pool_t *result_pool);
+
+/* Set *ROOT_P to the root directory of revision REV in filesystem FS.
+ Allocate the structure in POOL. */
+svn_error_t *
+svn_fs_x__revision_root(svn_fs_root_t **root_p,
+ svn_fs_t *fs,
+ svn_revnum_t rev,
+ apr_pool_t *pool);
+
+/* Does nothing, but included for Subversion 1.0.x compatibility. */
+svn_error_t *
+svn_fs_x__deltify(svn_fs_t *fs,
+ svn_revnum_t rev,
+ apr_pool_t *scratch_pool);
+
+/* Commit the transaction TXN as a new revision. Return the new
+ revision in *NEW_REV. If the transaction conflicts with other
+ changes return SVN_ERR_FS_CONFLICT and set *CONFLICT_P to a string
+ that details the cause of the conflict. */
+svn_error_t *
+svn_fs_x__commit_txn(const char **conflict_p,
+ svn_revnum_t *new_rev,
+ svn_fs_txn_t *txn,
+ apr_pool_t *pool);
+
+/* Set ROOT_P to the root directory of transaction TXN. Allocate the
+ structure in POOL. */
+svn_error_t *
+svn_fs_x__txn_root(svn_fs_root_t **root_p,
+ svn_fs_txn_t *txn,
+ apr_pool_t *pool);
+
+
+/* Set KIND_P to the node kind of the node at PATH in ROOT.
+ Use SCRATCH_POOL for temporary allocations. */
+svn_error_t *
+svn_fs_x__check_path(svn_node_kind_t *kind_p,
+ svn_fs_root_t *root,
+ const char *path,
+ apr_pool_t *scratch_pool);
+
+/* Set *REVISION to the revision in which PATH under ROOT was created.
+ Use SCRATCH_POOL for any temporary allocations. If PATH is in an
+ uncommitted transaction, *REVISION will be set to
+ SVN_INVALID_REVNUM. */
+svn_error_t *
+svn_fs_x__node_created_rev(svn_revnum_t *revision,
+ svn_fs_root_t *root,
+ const char *path,
+ apr_pool_t *scratch_pool);
+
+/* Verify metadata for ROOT.
+ ### Currently only implemented for revision roots. */
+svn_error_t *
+svn_fs_x__verify_root(svn_fs_root_t *root,
+ apr_pool_t *scratch_pool);
+
+svn_error_t *
+svn_fs_x__info_format(int *fs_format,
+ svn_version_t **supports_version,
+ svn_fs_t *fs,
+ apr_pool_t *result_pool,
+ apr_pool_t *scratch_pool);
+
+
+svn_error_t *
+svn_fs_x__info_config_files(apr_array_header_t **files,
+ svn_fs_t *fs,
+ apr_pool_t *result_pool,
+ apr_pool_t *scratch_pool);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* SVN_LIBSVN_FS_TREE_H */