blob: 59ea2bf0f4648f42aa34acf4575d73b65d6d3b7f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/**
* @file metadata.h
* @author Radek Krejci <rkrejci@cesnet.cz>
* @author Michal Vasko <mvasko@cesnet.cz>
* @brief ietf-yang-metadata API
*
* Copyright (c) 2019 - 2022 CESNET, z.s.p.o.
*
* This source code is licensed under BSD 3-Clause License (the "License").
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*/
#ifndef LY_PLUGINS_EXTS_METADATA_H_
#define LY_PLUGINS_EXTS_METADATA_H_
#include "plugins_exts.h"
#include "tree_data.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Metadata structure.
*
* The structure provides information about metadata of a data element. Such attributes must map to
* annotations as specified in RFC 7952. The only exception is the filter type (in NETCONF get operations)
* and edit-config's operation attributes. In XML, they are represented as standard XML attributes. In JSON,
* they are represented as JSON elements starting with the '@' character (for more information, see the
* YANG metadata RFC.
*
*/
struct lyd_meta {
struct lyd_node *parent; /**< data node where the metadata is placed */
struct lyd_meta *next; /**< pointer to the next metadata of the same element */
struct lysc_ext_instance *annotation; /**< pointer to the annotation's definition */
const char *name; /**< metadata name */
struct lyd_value value; /**< metadata value representation */
};
/**
* @brief Get the (canonical) value of a metadata node.
*
* @param[in] meta Metadata node to use.
* @return Canonical value.
*/
static inline const char *
lyd_get_meta_value(const struct lyd_meta *meta)
{
if (meta) {
const struct lyd_value *value = &meta->value;
return value->_canonical ? value->_canonical : lyd_value_get_canonical(meta->annotation->module->ctx, value);
}
return NULL;
}
#ifdef __cplusplus
}
#endif
#endif /* LY_PLUGINS_EXTS_METADATA_H_ */
|
