libyang  2.0.7
libyang is YANG data modelling language parser and toolkit written (and providing API) in C.
empty.c
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1 
15 #include "plugins_types.h"
16 
17 #include <stdint.h>
18 #include <stdio.h>
19 #include <stdlib.h>
20 
21 #include "libyang.h"
22 
23 /* additional internal headers for some useful simple macros */
24 #include "common.h"
25 #include "compat.h"
26 #include "plugins_internal.h" /* LY_TYPE_*_STR */
27 
37 API LY_ERR
38 lyplg_type_store_empty(const struct ly_ctx *ctx, const struct lysc_type *type, const void *value, size_t value_len,
39  uint32_t options, LY_VALUE_FORMAT UNUSED(format), void *UNUSED(prefix_data), uint32_t hints,
40  const struct lysc_node *UNUSED(ctx_node), struct lyd_value *storage, struct lys_glob_unres *UNUSED(unres),
41  struct ly_err_item **err)
42 {
43  LY_ERR ret = LY_SUCCESS;
44 
45  /* init storage */
46  memset(storage, 0, sizeof *storage);
47  storage->realtype = type;
48 
49  /* check hints */
50  ret = lyplg_type_check_hints(hints, value, value_len, type->basetype, NULL, err);
51  LY_CHECK_GOTO(ret, cleanup);
52 
53  /* validation */
54  if (value_len) {
55  ret = ly_err_new(err, LY_EVALID, LYVE_DATA, NULL, NULL, "Invalid empty value length %zu.", value_len);
56  goto cleanup;
57  }
58 
59  /* store canonical value */
60  if (options & LYPLG_TYPE_STORE_DYNAMIC) {
61  ret = lydict_insert_zc(ctx, (char *)value, &storage->_canonical);
62  options &= ~LYPLG_TYPE_STORE_DYNAMIC;
63  LY_CHECK_GOTO(ret, cleanup);
64  } else {
65  ret = lydict_insert(ctx, "", value_len, &storage->_canonical);
66  LY_CHECK_GOTO(ret, cleanup);
67  }
68 
69 cleanup:
70  if (options & LYPLG_TYPE_STORE_DYNAMIC) {
71  free((void *)value);
72  }
73 
74  if (ret) {
75  lyplg_type_free_simple(ctx, storage);
76  }
77  return ret;
78 }
79 
87 const struct lyplg_type_record plugins_empty[] = {
88  {
89  .module = "",
90  .revision = NULL,
91  .name = LY_TYPE_EMPTY_STR,
92 
93  .plugin.id = "libyang 2 - empty, version 1",
94  .plugin.store = lyplg_type_store_empty,
95  .plugin.validate = NULL,
96  .plugin.compare = lyplg_type_compare_simple,
97  .plugin.sort = NULL,
98  .plugin.print = lyplg_type_print_simple,
99  .plugin.duplicate = lyplg_type_dup_simple,
100  .plugin.free = lyplg_type_free_simple
101  },
102  {0}
103 };
API LY_ERR lyplg_type_store_empty(const struct ly_ctx *ctx, const struct lysc_type *type, const void *value, size_t value_len, uint32_t options, LY_VALUE_FORMAT UNUSED(format), void *UNUSED(prefix_data), uint32_t hints, const struct lysc_node *UNUSED(ctx_node), struct lyd_value *storage, struct lys_glob_unres *UNUSED(unres), struct ly_err_item **err)
Definition: empty.c:38
const struct lyplg_type_record plugins_empty[]
Plugin information for empty type implementation.
Definition: empty.c:87
libyang context handler.
LY_ERR lydict_insert_zc(const struct ly_ctx *ctx, char *value, const char **str_p)
Insert string into dictionary - zerocopy version. If the string is already present,...
LY_ERR lydict_insert(const struct ly_ctx *ctx, const char *value, size_t len, const char **str_p)
Insert string into dictionary. If the string is already present, only a reference counter is incremen...
LY_ERR
libyang's error codes returned by the libyang functions.
Definition: log.h:242
@ LYVE_DATA
Definition: log.h:279
@ LY_EVALID
Definition: log.h:250
@ LY_SUCCESS
Definition: log.h:243
Libyang full error structure.
Definition: log.h:287
const char * module
LY_ERR lyplg_type_check_hints(uint32_t hints, const char *value, size_t value_len, LY_DATA_TYPE type, int *base, struct ly_err_item **err)
Check that the type is suitable for the parser's hints (if any) in the specified format.
LY_ERR ly_err_new(struct ly_err_item **err, LY_ERR ecode, LY_VECODE vecode, char *path, char *apptag, const char *err_msg,...)
Create and fill error structure.
const void * lyplg_type_print_simple(const struct ly_ctx *ctx, const struct lyd_value *value, LY_VALUE_FORMAT format, void *prefix_data, ly_bool *dynamic, size_t *value_len)
Implementation of lyplg_type_print_clb for a generic simple type.
LY_ERR lyplg_type_dup_simple(const struct ly_ctx *ctx, const struct lyd_value *original, struct lyd_value *dup)
Implementation of lyplg_type_dup_clb for a generic simple type.
void lyplg_type_free_simple(const struct ly_ctx *ctx, struct lyd_value *value)
Implementation of lyplg_type_free_clb for a generic simple type.
LY_ERR lyplg_type_compare_simple(const struct lyd_value *val1, const struct lyd_value *val2)
Implementation of lyplg_type_compare_clb for a generic simple type.
#define LYPLG_TYPE_STORE_DYNAMIC
LY_DATA_TYPE basetype
Definition: tree_schema.h:1531
Compiled YANG data node.
Definition: tree_schema.h:1644
LY_VALUE_FORMAT
All kinds of supported value formats and prefix mappings to modules.
Definition: tree.h:235
The main libyang public header.
API for (user) types plugins.
const struct lysc_type * realtype
Definition: tree_data.h:535
const char * _canonical
Definition: tree_data.h:532
YANG data representation.
Definition: tree_data.h:531