New XMLDB_FORMAT added: tree. An experimental record-based tree database for direct access of records.

lib/src/clixon_datastore_tree.h

@@ -0,0 +1,90 @@
+/*
+ *
+  ***** BEGIN LICENSE BLOCK *****
+ 
+  Copyright (C) 2009-2019 Olof Hagsand and Benny Holmgren
+
+  This file is part of CLIXON.
+
+  Licensed 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.
+
+  Alternatively, the contents of this file may be used under the terms of
+  the GNU General Public License Version 3 or later (the "GPL"),
+  in which case the provisions of the GPL are applicable instead
+  of those above. If you wish to allow use of your version of this file only
+  under the terms of the GPL, and not to allow others to
+  use your version of this file under the terms of Apache License version 2, 
+  indicate your decision by deleting the provisions above and replace them with
+  the  notice and other provisions required by the GPL. If you do not delete
+  the provisions above, a recipient may use your version of this file under
+  the terms of any one of the Apache License version 2 or the GPL.
+
+  ***** END LICENSE BLOCK *****
+
+ *
+ * Datastore block tree file
+ */
+
+#ifndef _CLIXON_DATASTORE_TREE_H_
+#define _CLIXON_DATASTORE_TREE_H_
+
+/*
+ * Constants and macros
+ */
+/* Max of https://github.com/YangModels/yang
+ * name:      receive-recovery-scccp-avp-bad-value-challenge-response
+ * namespace: urn:ieee:std:802.3:yang:ieee802-ethernet-interface-half-duplex
+ */
+#define DF_BLOCK 32
+
+/*
+ * Types
+ */
+/* On file                      value (dep of type)
+ * off: Offset in bytes to where value starts (name ends +1)
+ * len: Total length in bytes (network byte order)
+ * childi: Block index to child (network byte order)
+ * ELMNT:                       
+ * +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * | 1   | 128 | de  | ad  | len                   | name ...  |  0  |
+ * +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * +-----+-----+-----+-----+-----+-----+-----+------+--
+ * | child0 (index in file)|  child1 (index in file)|
+ * +-----+-----+-----+-----+-----+-----+-----+-----+--
+ * ATTR:
+ * +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * | 1   | 129 | de  | ad  | len                   | name  ... |  0  |
+ * +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * +-----+-----+-----+
+ * | value ... | 0   |
+ * +-----+-----+-----+
+ * BODY: (off = 8)
+ * +-----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * | 1   | 130 | de  | ad  |   len                 | 0   |
+ * +-----+-----+-----+-----+-----+-----+-----+-----+-----+
+ * +-----+-----+-----+
+ * | value ... | 0   |
+ * +-----+-----+-----+
+ * FREE
+ * +------+
+ * | 0    |
+ * +------+
+*/
+
+/*
+ * Prototypes
+ */
+int datastore_tree_write(clicon_handle h, char *filename, cxobj *xt);
+int datastore_tree_read(clicon_handle h, char *filename, cxobj **xt);
+
+#endif  /* _CLIXON_DATASTORE_TREE_H_ */