Ongoing: xmldb datastore plugin framework

datastore/keyvalue/clixon_qdb.h

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+/*
+ *
+  ***** BEGIN LICENSE BLOCK *****
+ 
+  Copyright (C) 2009-2017 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 *****
+
+ */
+
+#ifndef _CLIXON_QDB_H_
+#define _CLIXON_QDB_H_
+
+
+/*
+ * Low level API
+ */
+
+struct db_pair {    
+    char *dp_key;  /* database key */
+    char *dp_matched; /* Matched component of key */
+    char *dp_val;  /* pointer to vector of lvalues */
+    int   dp_vlen; /* length of vector of lvalues */
+};
+
+/*
+ * Prototypes
+ */ 
+int db_init(char *file);
+
+int db_delete(char *file);
+
+int db_set(char *file, char *key, void *data, size_t datalen);
+
+int db_get(char *file, char *key, void *data, size_t *datalen);
+
+int db_get_alloc(char *file, char *key, void **data, size_t *datalen);
+
+int db_del(char *file, char *key);
+
+int db_exists(char *file, char *key);
+
+int db_regexp(char *file, char *regexp, const char *label, 
+	      struct db_pair **pairs, int noval);
+
+char *db_sanitize(char *rx, const char *label);
+
+#endif  /* _CLIXON_QDB_H_ */