golden hour

/usr/include/mysql/server/mysql

File/Folder	Size	Actions
auth_dialog_client.h	2.01 KB
client_plugin.h	6.18 KB
plugin.h	28.69 KB
plugin_audit.h	5.41 KB
plugin_auth.h	5.27 KB
plugin_auth_common.h	4.4 KB
plugin_data_type.h	1.27 KB
plugin_encryption.h	4.33 KB
plugin_ftparser.h	7.65 KB
plugin_function.h	1.4 KB
plugin_password_validation.h	1.52 KB
psi	-
service_base64.h	2.86 KB
service_debug_sync.h	13.18 KB
service_encryption.h	5.52 KB
service_encryption_scheme.h	5.51 KB
service_json.h	4.44 KB
service_kill_statement.h	2.02 KB
service_logger.h	3.47 KB
service_md5.h	2.07 KB
service_my_crypt.h	4.07 KB
service_my_print_error.h	2.27 KB
service_my_snprintf.h	3.63 KB
service_print_check_msg.h	1.52 KB
service_progress_report.h	3.28 KB
service_sha1.h	2.11 KB
service_sha2.h	5.17 KB
service_sql.h	4.57 KB
service_thd_alloc.h	4.38 KB
service_thd_autoinc.h	1.65 KB
service_thd_error_context.h	3.34 KB
service_thd_mdl.h	1.25 KB
service_thd_rnd.h	1.86 KB
service_thd_specifics.h	3.6 KB
service_thd_timezone.h	2.24 KB
service_thd_wait.h	3.61 KB
service_wsrep.h	13.04 KB
services.h	1.72 KB

Edit: service_json.h

This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA */

#ifndef MYSQL_SERVICE_JSON
#define MYSQL_SERVICE_JSON

/**
  @file
  json service

Exports JSON parsing methods for plugins to use.

Functions of the service:
    json_type - returns the type of the JSON argument,
       and the parsed value if it's scalar (not object or array)

json_get_array_item - expects JSON array as an argument,
       and returns the type of the element at index `n_item`.
       Returns JSV_NOTHING type if the array is shorter
       than n_item and the actual length of the array in value_len.
       If successful, then `value` up till `value[value_len]` contains the array
       element at the desired index (n_item).

json_get_object_key - expects JSON object as an argument,
       searches for a key in the object, return it's type and stores its value in `value`.
       JSV_NOTHING if no such key found, the number of keys
       in v_len.

json_get_object_nkey - expects JSON object as an argument.
      finds n_key's key in the object, returns it's name, type and value.
      JSV_NOTHING if object has less keys than n_key.
*/

#ifdef __cplusplus
extern "C" {
#endif

enum json_types
{
  JSV_BAD_JSON=-1,
  JSV_NOTHING=0,
  JSV_OBJECT=1,
  JSV_ARRAY=2,
  JSV_STRING=3,
  JSV_NUMBER=4,
  JSV_TRUE=5,
  JSV_FALSE=6,
  JSV_NULL=7
};

extern struct json_service_st {
  enum json_types (*json_type)(const char *js, const char *js_end,
                               const char **value, int *value_len);
  enum json_types (*json_get_array_item)(const char *js, const char *js_end,
                                         int n_item,
                                         const char **value, int *value_len);
  enum json_types (*json_get_object_key)(const char *js, const char *js_end,
                                         const char *key,
                                         const char **value, int *value_len);
  enum json_types (*json_get_object_nkey)(const char *js,const char *js_end,
                             int nkey,
                             const char **keyname, const char **keyname_end,
                             const char **value, int *value_len);
  int (*json_escape_string)(const char *str,const char *str_end,
                          char *json, char *json_end);
  int (*json_unescape_json)(const char *json_str, const char *json_end,
                          char *res, char *res_end);
} *json_service;

#ifdef MYSQL_DYNAMIC_PLUGIN

#define json_type json_service->json_type
#define json_get_array_item json_service->json_get_array_item
#define json_get_object_key json_service->json_get_object_key
#define json_get_object_nkey json_service->json_get_object_nkey
#define json_escape_string json_service->json_escape_string
#define json_unescape_json json_service->json_unescape_json

#else

enum json_types json_type(const char *js, const char *js_end,
                          const char **value, int *value_len);
enum json_types json_get_array_item(const char *js, const char *js_end,
                                    int n_item,
                                    const char **value, int *value_len);
enum json_types json_get_object_key(const char *js, const char *js_end,
                                    const char *key,
                                    const char **value, int *value_len);
enum json_types json_get_object_nkey(const char *js,const char *js_end, int nkey,
                       const char **keyname, const char **keyname_end,
                       const char **value, int *value_len);
int json_escape_string(const char *str,const char *str_end,
                       char *json, char *json_end);
int json_unescape_json(const char *json_str, const char *json_end,
                       char *res, char *res_end);

#endif /*MYSQL_DYNAMIC_PLUGIN*/

#ifdef __cplusplus
}
#endif

#endif /*MYSQL_SERVICE_JSON */