+notmuch_status_t
+_notmuch_database_filename_to_direntry (void *ctx,
+ notmuch_database_t *notmuch,
+ const char *filename,
+ char **direntry);
+
+/* directory.cc */
+
+notmuch_directory_t *
+_notmuch_directory_create (notmuch_database_t *notmuch,
+ const char *path,
+ notmuch_status_t *status_ret);
+
+unsigned int
+_notmuch_directory_get_document_id (notmuch_directory_t *directory);
+