Json util module implementation file. More...

#include "cJSON/cJSON.h"
#include "json_util.h"
#include "mcl/mcl_json_util.h"
#include "definitions.h"
#include "log_util.h"
#include "memory.h"
#include "string_util.h"

Include dependency graph for json_util.c:

Go to the source code of this file.

Functions
static void	_finish_json_item (json_t **json_item)

static E_JSON_TYPE	_convert_mcl_json_type_to_json_type (E_MCL_JSON_TYPE mcl_json_type)

void	json_util_initialize_json_library ()
	This function initializes json library. More...

E_MCL_ERROR_CODE	mcl_json_util_initialize (E_MCL_JSON_TYPE json_type, mcl_json_t **root)
	This function initializes the given `root` json. More...

E_MCL_ERROR_CODE	json_util_initialize (E_JSON_TYPE json_type, json_t **root)
	This function initializes the given `root` json. More...

E_MCL_ERROR_CODE	mcl_json_util_start_array (mcl_json_t root, const char array_name, mcl_json_t **json_array)
	This function creates an array in `root`. More...

E_MCL_ERROR_CODE	json_util_start_array (json_t root, const char array_name, json_t **json_array)
	This function creates an array in `root`. More...

E_MCL_ERROR_CODE	mcl_json_util_get_array_item (mcl_json_t array, int index, mcl_json_t *item)
	This function gets the item at given index from `array`. More...

E_MCL_ERROR_CODE	json_util_get_array_item (json_t array, int index, json_t *item)
	This function gets the item at given index from `array`. More...

E_MCL_ERROR_CODE	mcl_json_util_get_array_size (mcl_json_t array, mcl_size_t size)
	This function returns the size of `array`. More...

void	json_util_get_array_size (json_t array, mcl_size_t size)
	This function returns the size of `array`. More...

E_MCL_ERROR_CODE	mcl_json_util_start_object (mcl_json_t root, const char object_name, mcl_json_t **json_object)
	This function creates an object in `root`. More...

E_MCL_ERROR_CODE	json_util_start_object (json_t root, const char object_name, json_t **json_object)
	This function creates an object in `root`. More...

E_MCL_ERROR_CODE	mcl_json_util_add_string (mcl_json_t root, const char object_name, const char *object_value)
	This function adds string to `root` which can be object or array. More...

E_MCL_ERROR_CODE	json_util_add_string (json_t root, const char object_name, const char *object_value)
	This function adds string to `root` which can be object or array. More...

E_MCL_ERROR_CODE	mcl_json_util_add_uint (mcl_json_t root, const char object_name, const mcl_size_t number)
	This function adds integer number to `root` which can be object or array. More...

E_MCL_ERROR_CODE	json_util_add_uint (json_t root, const char object_name, const mcl_size_t number)
	This function adds integer number to `root` which can be object or array. More...

E_MCL_ERROR_CODE	mcl_json_util_add_float (mcl_json_t root, const char object_name, const float number)
	This function adds floating number to `root`. More...

E_MCL_ERROR_CODE	json_util_add_float (json_t root, const char object_name, const float number)
	This function adds floating number to `root`. More...

E_MCL_ERROR_CODE	mcl_json_util_add_double (mcl_json_t root, const char object_name, const double number)
	This function adds double number to `root` which can be object or array. More...

E_MCL_ERROR_CODE	json_util_add_double (json_t root, const char object_name, const double number)
	This function adds double number to `root` which can be object or array. More...

E_MCL_ERROR_CODE	mcl_json_util_add_bool (mcl_json_t root, const char object_name, const mcl_bool_t bool_value)
	This function adds `bool_value` to `root` which can be object or array. More...

E_MCL_ERROR_CODE	json_util_add_bool (json_t root, const char object_name, const mcl_bool_t bool_value)
	This function adds `bool_value` to `root` which can be object or array. More...

E_MCL_ERROR_CODE	mcl_json_util_add_null (mcl_json_t root, const char object_name)
	This function adds null to `root` which can be object or array. More...

E_MCL_ERROR_CODE	json_util_add_null (json_t root, const char object_name)
	This function adds null to `root` which can be object or array. More...

E_MCL_ERROR_CODE	mcl_json_util_add_object (mcl_json_t root, const char object_name, mcl_json_t *object)
	This function adds `object` to `root`. More...

E_MCL_ERROR_CODE	json_util_add_object (json_t root, const char object_name, json_t *object)
	This function adds `object` to `root`. More...

E_MCL_ERROR_CODE	mcl_json_util_add_item_to_array (mcl_json_t root, mcl_json_t object)
	This function adds `object` to `root` array. More...

void	json_util_add_item_to_array (json_t root, json_t object)
	This function adds `object` to `root` array. More...

E_MCL_ERROR_CODE	mcl_json_util_get_object_item (mcl_json_t json_parent, const char child_name, mcl_json_t **json_child)
	This function gives the value of `json_child` object, when the `child_name` in `json_parent` object is given. More...

E_MCL_ERROR_CODE	json_util_get_object_item (json_t json_parent, const char child_name, json_t **json_child)
	This function gives the value of `json_child` object, when the `child_name` in `json_parent` object is given. More...

E_MCL_ERROR_CODE	mcl_json_util_has_child (mcl_json_t root, mcl_bool_t result)
	This function checks whether root object has child object or not. More...

mcl_bool_t	json_util_has_child (json_t *root)
	This function checks whether root object has child object or not. More...

E_MCL_ERROR_CODE	mcl_json_util_get_number_value (mcl_json_t json, mcl_int32_t number_value)
	This function gets the number value of a given json object. More...

void	json_util_get_number_value (json_t json, mcl_int32_t number_value)
	This function gets the number value of a given json object. More...

E_MCL_ERROR_CODE	mcl_json_util_get_double_value (mcl_json_t json, double double_value)
	This function gets the double value of a given json object. More...

void	json_util_get_double_value (json_t json, double double_value)
	This function gets the double value of a given json object. More...

E_MCL_ERROR_CODE	mcl_json_util_get_bool_value (mcl_json_t json, mcl_bool_t bool_value)
	This function gets the boolean value of a given json object. More...

void	json_util_get_bool_value (json_t json, mcl_bool_t bool_value)
	This function gets the boolean value of a given json object. More...

E_MCL_ERROR_CODE	mcl_json_util_get_string (mcl_json_t json_item, char *string_value)
	This function gets the string value of a given json object. More...

E_MCL_ERROR_CODE	json_util_get_string (json_t json_item, string_t *string_value)
	This function gets the string value of a given json object. More...

E_MCL_ERROR_CODE	mcl_json_util_to_string (mcl_json_t root, char *json_string)
	This function gives the string of `root` in json format. More...

E_MCL_ERROR_CODE	json_util_to_string (json_t root, char *json_string)
	This function gives the string of `root` in json format. More...

E_MCL_ERROR_CODE	mcl_json_util_parse (const char json_string, mcl_json_t *root)
	This function parses the given string to the given json object. More...

E_MCL_ERROR_CODE	json_util_parse (const char json_string, json_t *root)
	This function parses the given string to the given json object. More...

E_MCL_ERROR_CODE	json_util_parse_with_size (const char json_string, mcl_size_t size, json_t *root)
	This function parses the given string to the given json object. More...

E_MCL_ERROR_CODE	json_util_duplicate (const json_t source_json, mcl_bool_t with_children, json_t *duplicated_json)
	This function duplicates `source_json` as `duplicated_json`. More...

void	mcl_json_util_finish_array (mcl_json_t **json_array)
	This function destroys `json_array` data struct. But the array still exists in root json object. More...

void	json_util_finish_array (json_t **json_array)
	This function destroys `json_array` data struct. But the array still exists in root json object. More...

void	mcl_json_util_finish_object (mcl_json_t **json_object)
	This function destroys `json_object` data struct. But the object still exists in root json object. More...

void	json_util_finish_object (json_t **json_object)
	This function destroys `json_object` data struct. But the object still exists in root json object. More...

void	mcl_json_util_destroy (mcl_json_t **root)
	This function destroys `root`. More...

void	json_util_destroy (json_t **root)
	This function destroys `root`. More...

Variables
static cJSON_Hooks	cjson_hooks

Detailed Description

Json util module implementation file.

Copyright: Copyright (C) 2017 Siemens Aktiengesellschaft.
All rights reserved.

Date: Feb 22, 2017

Definition in file json_util.c.

Function Documentation

static E_JSON_TYPE _convert_mcl_json_type_to_json_type ( E_MCL_JSON_TYPE mcl_json_type )

static

Definition at line 888 of file json_util.c.

References JSON_ARRAY, JSON_NULL, JSON_OBJECT, MCL_JSON_ARRAY, MCL_JSON_OBJECT, MCL_VERBOSE, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_initialize().

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static void _finish_json_item ( json_t ** json_item )

static

Definition at line 876 of file json_util.c.

References MCL_FREE, MCL_NULL, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by json_util_finish_array(), and json_util_finish_object().

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E_MCL_ERROR_CODE json_util_add_bool	(	json_t *	root,
		const char *	object_name,
		const mcl_bool_t	bool_value
	)

This function adds bool_value to root which can be object or array.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the bool value which is going to be added to `root`.
[in]	bool_value	Bool value to be added to `root`.

Returns

MCL_OK in case of success.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 406 of file json_util.c.

References ASSERT_CODE_MESSAGE, json_util_get_object_item(), MCL_FREE, MCL_INVALID_PARAMETER, MCL_JSON_NAME_DUPLICATION, MCL_NON_EXISTING_JSON_CHILD, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_add_bool().

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E_MCL_ERROR_CODE json_util_add_double	(	json_t *	root,
		const char *	object_name,
		const double	number
	)

This function adds double number to root which can be object or array.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the name/value pair which is going to be added to `root`.
[in]	number	Value of the name/value pair which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 358 of file json_util.c.

References ASSERT_CODE_MESSAGE, json_util_get_object_item(), MCL_FREE, MCL_INVALID_PARAMETER, MCL_JSON_NAME_DUPLICATION, MCL_NON_EXISTING_JSON_CHILD, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _create_self_issued_jwt_payload(), and mcl_json_util_add_double().

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E_MCL_ERROR_CODE json_util_add_float	(	json_t *	root,
		const char *	object_name,
		const float	number
	)

This function adds floating number to root.

Warning: If cJson library is used, this function is not supported.

Parameters

[in]	root	Root json object.
[in]	object_name	Name of the name/value pair which is going to be added to `root`.
[in]	number	Value of the name/value pair which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_OPERATION_IS_NOT_SUPPORTED if the json library which is used does not support adding float.

Definition at line 329 of file json_util.c.

References MCL_OPERATION_IS_NOT_SUPPORTED, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_add_float().

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void json_util_add_item_to_array	(	json_t *	root,
		json_t *	object
	)

This function adds object to root array.

Parameters

[in]	root	Root json array.
[in]	object	`object` which is going to be added to `root` array.

Definition at line 540 of file json_util.c.

References json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_data_source_configuration_data_points(), _add_data_source_configuration_data_sources(), _add_event(), _add_key_to_keys_array(), _add_time_series_payload_values_objects(), _add_time_series_value_set(), and mcl_json_util_add_item_to_array().

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E_MCL_ERROR_CODE json_util_add_null	(	json_t *	root,
		const char *	object_name
	)

This function adds null to root which can be object or array.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the null value which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 454 of file json_util.c.

References ASSERT_CODE_MESSAGE, json_util_get_object_item(), MCL_FREE, MCL_INVALID_PARAMETER, MCL_JSON_NAME_DUPLICATION, MCL_NON_EXISTING_JSON_CHILD, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_add_null().

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E_MCL_ERROR_CODE json_util_add_object	(	json_t *	root,
		const char *	object_name,
		json_t *	object
	)

This function adds object to root.

Parameters

[in]	root	Root json object.
[in]	object_name	Name of `object` which is going to be going to be added to `root`.
[in]	object	`object` which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.

Definition at line 504 of file json_util.c.

References ASSERT_CODE_MESSAGE, json_util_get_object_item(), MCL_FREE, MCL_JSON_NAME_DUPLICATION, MCL_NON_EXISTING_JSON_CHILD, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_data_source_configuration_data_points(), _add_data_source_configuration_data_sources(), _add_event(), _add_item_meta_details(), _add_item_meta_payload_details(), and mcl_json_util_add_object().

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E_MCL_ERROR_CODE json_util_add_string	(	json_t *	root,
		const char *	object_name,
		const char *	object_value
	)

This function adds string to root which can be object or array.

Note: if root is array, object_name must be null.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the name/value pair which is going to be added to `root`.
[in]	object_value	Value of the name/value pair which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 237 of file json_util.c.

References ASSERT_CODE_MESSAGE, json_util_get_object_item(), MCL_FREE, MCL_INVALID_PARAMETER, MCL_JSON_NAME_DUPLICATION, MCL_NON_EXISTING_JSON_CHILD, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_data_source_configuration_data_points(), _add_data_source_configuration_data_sources(), _add_event(), _add_item_meta_payload(), _add_schema_to_jwt(), _add_string_field_to_object(), _add_time_series_payload_values_objects(), _add_time_series_value_set(), _compose_rsa_key_rotation_json(), _compose_rsa_onboarding_json(), _create_self_issued_jwt_header(), _create_self_issued_jwt_payload(), json_from_data_source_configuration_payload(), and mcl_json_util_add_string().

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E_MCL_ERROR_CODE json_util_add_uint	(	json_t *	root,
		const char *	object_name,
		const mcl_size_t	number
	)

This function adds integer number to root which can be object or array.

Note: if root is array, object_name must be null.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the name/value pair which is going to be added to `root`.
[in]	number	Value of the name/value pair which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 285 of file json_util.c.

References ASSERT_CODE_MESSAGE, json_util_get_object_item(), MCL_FREE, MCL_INVALID_PARAMETER, MCL_JSON_NAME_DUPLICATION, MCL_NON_EXISTING_JSON_CHILD, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_event(), and mcl_json_util_add_uint().

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void json_util_destroy ( json_t ** root )

This function destroys root.

Note: If root is destroyed, all child json objects in root are also destroyed.

Parameters

[out] root Root json object.

Definition at line 863 of file json_util.c.

References MCL_FREE, MCL_NULL, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_data_source_configuration_data_points(), _add_data_source_configuration_data_sources(), _add_event(), _add_item_meta_details(), _add_item_meta_payload_details(), _add_time_series_payload_values_objects(), _add_time_series_value_set(), _compose_rsa_key_rotation_json(), _compose_rsa_onboarding_json(), _create_self_issued_jwt_header(), _create_self_issued_jwt_payload(), _destroy_data_point(), _destroy_data_source(), _process_registration_response_rsa_3072(), _process_registration_response_shared_secret(), custom_data_destroy(), event_destroy(), http_processor_get_access_token(), json_from_data_source_configuration_payload(), json_from_event_payload(), json_from_item_meta(), json_from_time_series_payload(), jwt_destroy(), mcl_event_set_option(), and mcl_json_util_destroy().

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E_MCL_ERROR_CODE json_util_duplicate	(	const json_t *	source_json,
		mcl_bool_t	with_children,
		json_t **	duplicated_json
	)

This function duplicates source_json as duplicated_json.

Parameters

[in]	source_json	Json object to be duplicated.
[in]	with_children	If it is true, duplicate with children. Otherwise, only root is duplicated.
[out]	duplicated_json	Duplicated json from `source_json`.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.

Definition at line 805 of file json_util.c.

References ASSERT_CODE_MESSAGE, ASSERT_STATEMENT_CODE_MESSAGE, MCL_FREE, MCL_NEW, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_data_source_configuration_data_points(), _add_data_source_configuration_data_sources(), _add_event(), _add_item_meta_payload_details(), mcl_custom_data_set_meta_details(), mcl_data_source_configuration_add_data_point(), mcl_data_source_configuration_add_data_source(), and mcl_event_set_option().

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void json_util_finish_array ( json_t ** json_array )

This function destroys json_array data struct. But the array still exists in root json object.

Note: To remove json_array from root, mcl_json_util_destroy must be called for root json object.

Parameters

[out] json_array Json array which exists in root.

Definition at line 827 of file json_util.c.

References _finish_json_item(), VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_data_source_configuration_data_points(), _add_data_source_configuration_data_sources(), _add_schema_to_jwt(), _add_time_series_payload_values_array(), and mcl_json_util_finish_array().

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void json_util_finish_object ( json_t ** json_object )

This function destroys json_object data struct. But the object still exists in root json object.

Note: To remove json_object from root, mcl_json_util_destroy must be called for root json object.

Parameters

[out] json_object Json object which exists in root.

Definition at line 845 of file json_util.c.

References _finish_json_item(), VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_data_source_configuration_data_points(), _add_data_source_configuration_data_sources(), _add_event(), _add_item_meta_details(), _add_item_meta_payload(), _add_item_meta_payload_details(), _add_time_series_payload_values_objects(), _add_time_series_value_set(), _compose_rsa_key_rotation_json(), _compose_rsa_onboarding_json(), and mcl_json_util_finish_object().

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E_MCL_ERROR_CODE json_util_get_array_item	(	json_t *	array,
		int	index,
		json_t **	item
	)

This function gets the item at given index from array.

Parameters

[in]	array	Array json object.
[in]	index	Index of the item to get from `array`.
[out]	item	Result json object item.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.

Definition at line 141 of file json_util.c.

References ASSERT_CODE_MESSAGE, ASSERT_STATEMENT_CODE_MESSAGE, MCL_FAIL, MCL_FREE, MCL_NEW, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, MCL_TRUE, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_get_array_item().

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void json_util_get_array_size	(	json_t *	array,
		mcl_size_t *	size
	)

This function returns the size of array.

Parameters

[in]	array	Array json object.
[out]	size	Size of `array`.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.

Definition at line 173 of file json_util.c.

References json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_get_array_size().

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void json_util_get_bool_value	(	json_t *	json,
		mcl_bool_t *	bool_value
	)

This function gets the boolean value of a given json object.

Parameters

[in]	json	Root object of `bool_value`.
[in]	bool_value	Value of `json`.

Definition at line 673 of file json_util.c.

References MCL_FALSE, MCL_TRUE, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_get_bool_value().

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void json_util_get_double_value	(	json_t *	json,
		double *	double_value
	)

This function gets the double value of a given json object.

Parameters

[in]	json	Root object of `double_value`.
[in]	double_value	Value of `json`.

Definition at line 651 of file json_util.c.

References json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_get_double_value().

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void json_util_get_number_value	(	json_t *	json,
		mcl_int32_t *	number_value
	)

This function gets the number value of a given json object.

Parameters

[in]	json	Root object of `number_value`.
[in]	number_value	Value of `json`.

Definition at line 629 of file json_util.c.

References json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_get_number_value().

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E_MCL_ERROR_CODE json_util_get_object_item	(	json_t *	json_parent,
		const char *	child_name,
		json_t **	json_child
	)

This function gives the value of json_child object, when the child_name in json_parent object is given.

Parameters

[in]	json_parent	Root json object of `json_child`.
[in]	child_name	Name of the `json_child` object.
[out]	json_child	The json object which is going to be received. New memory space will be allocated for this parameter. Ownership passed to caller. Caller must free the space of json_child with MCL_FREE(*json_child).

Returns

MCL_OK in case of success.
MCL_NON_EXISTING_JSON_CHILD if json_child doesn't exist in json_parent.

Definition at line 565 of file json_util.c.

References ASSERT_CODE_MESSAGE, MCL_FREE, MCL_NEW, MCL_NON_EXISTING_JSON_CHILD, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _process_registration_response_rsa_3072(), _process_registration_response_shared_secret(), http_processor_get_access_token(), json_util_add_bool(), json_util_add_double(), json_util_add_null(), json_util_add_object(), json_util_add_string(), json_util_add_uint(), json_util_start_array(), json_util_start_object(), and mcl_json_util_get_object_item().

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E_MCL_ERROR_CODE json_util_get_string	(	json_t *	json_item,
		string_t **	string_value
	)

This function gets the string value of a given json object.

Parameters

[in]	json_item	Root object of `string_value`.
[in]	string_value	String value of `json_item`. New memory space will be allocated for this parameter. Ownership passed to caller. Caller must free the space.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.

Definition at line 711 of file json_util.c.

References ASSERT_CODE_MESSAGE, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, string_initialize_new(), VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _process_registration_response_rsa_3072(), _process_registration_response_shared_secret(), http_processor_get_access_token(), and mcl_json_util_get_string().

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mcl_bool_t json_util_has_child ( json_t * root )

This function checks whether root object has child object or not.

Parameters

[in] root Json object which is going to be checked whether it has child or not.

Returns

MCL_TRUE if provided root has child.
MCL_FALSE if provided root does not have any child.

Definition at line 600 of file json_util.c.

References MCL_FALSE, MCL_NULL, MCL_TRUE, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_item_meta_details(), _add_item_meta_payload_details(), and mcl_json_util_has_child().

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E_MCL_ERROR_CODE json_util_initialize	(	E_JSON_TYPE	json_type,
		json_t **	root
	)

This function initializes the given root json.

Parameters

[in]	json_type	Type of the json.
[out]	root	Root json.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.

Definition at line 53 of file json_util.c.

References ASSERT_CODE_MESSAGE, ASSERT_STATEMENT_CODE_MESSAGE, JSON_ARRAY, JSON_OBJECT, MCL_FREE, MCL_NEW, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, MCL_VERBOSE, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_data_source_configuration_data_points(), _add_data_source_configuration_data_sources(), _add_event(), _add_item_meta_details(), _add_item_meta_payload_details(), _add_key_to_keys_array(), _add_time_series_payload_values_objects(), _add_time_series_value_set(), _compose_rsa_key_rotation_json(), _compose_rsa_onboarding_json(), _create_self_issued_jwt_header(), _create_self_issued_jwt_payload(), json_from_data_source_configuration_payload(), json_from_event_payload(), json_from_item_meta(), json_from_time_series_payload(), json_util_start_array(), json_util_start_object(), and mcl_json_util_initialize().

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void json_util_initialize_json_library ( )

This function initializes json library.

Supplying malloc, realloc and free functions to cJSON is performed in this function.

Definition at line 28 of file json_util.c.

References cjson_hooks, DEBUG_ENTRY, DEBUG_LEAVE, memory_free(), and memory_malloc().

Referenced by http_processor_initialize().

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E_MCL_ERROR_CODE json_util_parse	(	const char *	json_string,
		json_t **	root
	)

This function parses the given string to the given json object.

Parameters

[in]	json_string	String in json format. New memory space will be allocated for this parameter. Ownership passed to caller. Caller must free the space.
[out]	root	`json_string` is going to be parsed to this root object.

Returns

MCL_OK in case of success.
MCL_FAIL If given json has invalid format.
MCL_OUT_OF_MEMORY If memory cannot be allocated for root.

Definition at line 763 of file json_util.c.

References ASSERT_CODE_MESSAGE, ASSERT_STATEMENT_CODE_MESSAGE, MCL_FAIL, MCL_FREE, MCL_NEW, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by mcl_json_util_parse().

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E_MCL_ERROR_CODE json_util_parse_with_size	(	const char *	json_string,
		mcl_size_t	size,
		json_t **	root
	)

This function parses the given string to the given json object.

Parameters

[in]	json_string	String in json format. New memory space will be allocated for this parameter. Ownership passed to caller. Caller must free the space.
[in]	size	Size of the buffer. If `json_string` is null terminated, `size` must be zero. Otherwise `size` value must be size of `json_string`.
[out]	root	`json_string` is going to be parsed to this root object.

Returns

MCL_OK in case of success.
MCL_FAIL If given json has invalid format.
MCL_OUT_OF_MEMORY If memory cannot be allocated for root.

Definition at line 777 of file json_util.c.

References ASSERT_CODE_MESSAGE, ASSERT_STATEMENT_CODE_MESSAGE, MCL_FAIL, MCL_FREE, MCL_NEW, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _process_registration_response_rsa_3072(), _process_registration_response_shared_secret(), and http_processor_get_access_token().

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E_MCL_ERROR_CODE json_util_start_array	(	json_t *	root,
		const char *	array_name,
		json_t **	json_array
	)

This function creates an array in root.

Parameters

[in]	root	Root json object.
[in]	array_name	Name of the array which is going to be created in `root`.
[out]	json_array	Json array which is going to be created in `root`.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.
MCL_JSON_NAME_DUPLICATION if the same array_name is already used in root as object name.

Definition at line 100 of file json_util.c.

References ASSERT_CODE_MESSAGE, JSON_ARRAY, json_util_get_object_item(), json_util_initialize(), MCL_FREE, MCL_JSON_NAME_DUPLICATION, MCL_NON_EXISTING_JSON_CHILD, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_data_source_configuration_data_points(), _add_data_source_configuration_data_sources(), _add_schema_to_jwt(), _add_time_series_payload_values_array(), _compose_rsa_key_rotation_json(), _compose_rsa_onboarding_json(), and mcl_json_util_start_array().

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E_MCL_ERROR_CODE json_util_start_object	(	json_t *	root,
		const char *	object_name,
		json_t **	json_object
	)

This function creates an object in root.

Parameters

[in]	root	Root json object.
[in]	object_name	Name of the object which is going to be created in `root`.
[out]	json_object	Json object which is going to be created in `root`.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.

Definition at line 198 of file json_util.c.

References ASSERT_CODE_MESSAGE, JSON_OBJECT, json_util_get_object_item(), json_util_initialize(), MCL_FREE, MCL_JSON_NAME_DUPLICATION, MCL_NON_EXISTING_JSON_CHILD, MCL_NULL, MCL_OK, MCL_OUT_OF_MEMORY, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _add_item_meta_payload(), _compose_rsa_key_rotation_json(), _compose_rsa_onboarding_json(), and mcl_json_util_start_object().

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E_MCL_ERROR_CODE json_util_to_string	(	json_t *	root,
		char **	json_string
	)

This function gives the string of root in json format.

Parameters

[in]	root	Root json object.
[out]	json_string	The string of `root` in json format.

Returns

MCL_OK in case of success.
MCL_FAIL either the given json is invalid or memory can not be allocated for root.

Definition at line 737 of file json_util.c.

References ASSERT_CODE_MESSAGE, MCL_FAIL, MCL_NULL, MCL_OK, json_t::root_handle, VERBOSE_ENTRY, and VERBOSE_LEAVE.

Referenced by _compose_rsa_key_rotation_json(), _compose_rsa_onboarding_json(), json_from_data_source_configuration_payload(), json_from_event_payload(), json_from_item_meta(), json_from_time_series_payload(), jwt_get_token(), and mcl_json_util_to_string().

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E_MCL_ERROR_CODE mcl_json_util_add_bool	(	mcl_json_t *	root,
		const char *	object_name,
		const mcl_bool_t	bool_value
	)

This function adds bool_value to root which can be object or array.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the bool value which is going to be added to `root`.
[in]	bool_value	Bool value to be added to `root`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root is NULL.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 392 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_add_bool().

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E_MCL_ERROR_CODE mcl_json_util_add_double	(	mcl_json_t *	root,
		const char *	object_name,
		const double	number
	)

This function adds double number to root which can be object or array.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the name/value pair which is going to be added to `root`.
[in]	number	Value of the name/value pair which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root is NULL.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 344 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_add_double().

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E_MCL_ERROR_CODE mcl_json_util_add_float	(	mcl_json_t *	root,
		const char *	object_name,
		const float	number
	)

This function adds floating number to root.

Warning: If cJson library is used, this function is not supported.

Parameters

[in]	root	Root json object.
[in]	object_name	Name of the name/value pair which is going to be added to `root`.
[in]	number	Value of the name/value pair which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root or object_name is NULL.
MCL_OPERATION_IS_NOT_SUPPORTED if the json library which is used does not support adding float.

Definition at line 319 of file json_util.c.

References DEBUG_ENTRY, DEBUG_LEAVE, and json_util_add_float().

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E_MCL_ERROR_CODE mcl_json_util_add_item_to_array	(	mcl_json_t *	root,
		mcl_json_t *	object
	)

This function adds object to root array.

Parameters

[in]	root	Root json array.
[in]	object	`object` which is going to be added to `root` array.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root, object_name or object is NULL.

Definition at line 527 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, json_util_add_item_to_array(), and MCL_OK.

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E_MCL_ERROR_CODE mcl_json_util_add_null	(	mcl_json_t *	root,
		const char *	object_name
	)

This function adds null to root which can be object or array.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the null value which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root is NULL.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 440 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_add_null().

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E_MCL_ERROR_CODE mcl_json_util_add_object	(	mcl_json_t *	root,
		const char *	object_name,
		mcl_json_t *	object
	)

This function adds object to root.

Parameters

[in]	root	Root json object.
[in]	object_name	Name of `object` which is going to be going to be added to `root`.
[in]	object	`object` which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root, object_name or object is NULL.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.

Definition at line 488 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, json_util_add_object(), and MCL_OK.

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E_MCL_ERROR_CODE mcl_json_util_add_string	(	mcl_json_t *	root,
		const char *	object_name,
		const char *	object_value
	)

This function adds string to root which can be object or array.

Note: if root is array, object_name must be null.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the name/value pair which is going to be added to `root`.
[in]	object_value	Value of the name/value pair which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root or object_value is NULL.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 222 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_add_string().

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E_MCL_ERROR_CODE mcl_json_util_add_uint	(	mcl_json_t *	root,
		const char *	object_name,
		const mcl_size_t	number
	)

This function adds integer number to root which can be object or array.

Note: if root is array, object_name must be null.

Parameters

[in]	root	Root json. It can be object or array.
[in]	object_name	Name of the name/value pair which is going to be added to `root`.
[in]	number	Value of the name/value pair which is going to be added to `root`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root is NULL.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.
MCL_INVALID_PARAMETER if root type is array and object_name is not null, or root type is object and object_name is null.

Definition at line 271 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_add_uint().

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void mcl_json_util_destroy ( mcl_json_t ** root )

This function destroys root.

Note: If root is destroyed, all child json objects in root are also destroyed.

Parameters

[out] root Root json object.

Definition at line 854 of file json_util.c.

References DEBUG_ENTRY, DEBUG_LEAVE, and json_util_destroy().

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void mcl_json_util_finish_array ( mcl_json_t ** json_array )

This function destroys json_array data struct. But the array still exists in root json object.

Note: To remove json_array from root, mcl_json_util_destroy must be called for root json object.

Parameters

[out] json_array Json array which exists in root.

Definition at line 818 of file json_util.c.

References DEBUG_ENTRY, DEBUG_LEAVE, and json_util_finish_array().

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void mcl_json_util_finish_object ( mcl_json_t ** json_object )

This function destroys json_object data struct. But the object still exists in root json object.

Note: To remove json_object from root, mcl_json_util_destroy must be called for root json object.

Parameters

[out] json_object Json object which exists in root.

Definition at line 836 of file json_util.c.

References DEBUG_ENTRY, DEBUG_LEAVE, and json_util_finish_object().

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E_MCL_ERROR_CODE mcl_json_util_get_array_item	(	mcl_json_t *	array,
		int	index,
		mcl_json_t **	item
	)

This function gets the item at given index from array.

Parameters

[in]	array	Array json object.
[in]	index	Index of the item to get from `array`.
[out]	item	Result json object item.New memory space will be allocated for this parameter. Ownership passed to caller. Caller must free the space using MCL_FREE().

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.

Definition at line 126 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_get_array_item().

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E_MCL_ERROR_CODE mcl_json_util_get_array_size	(	mcl_json_t *	array,
		mcl_size_t *	size
	)

This function returns the size of array.

Parameters

[in]	array	Array json object.
[out]	size	Size of `array`.

Returns

MCL_OK in case of success.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.

Definition at line 160 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, json_util_get_array_size(), and MCL_OK.

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E_MCL_ERROR_CODE mcl_json_util_get_bool_value	(	mcl_json_t *	json,
		mcl_bool_t *	bool_value
	)

This function gets the boolean value of a given json object.

Parameters

[in]	json	Root object of `bool_value`.
[in]	bool_value	Boolean value of `json`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided json or bool_value is NULL.

Definition at line 660 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, json_util_get_bool_value(), and MCL_OK.

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E_MCL_ERROR_CODE mcl_json_util_get_double_value	(	mcl_json_t *	json,
		double *	double_value
	)

This function gets the double value of a given json object.

Parameters

[in]	json	Root object of `double_value`.
[in]	double_value	Value of `json`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided json or double_value is NULL.

Definition at line 638 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, json_util_get_double_value(), and MCL_OK.

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E_MCL_ERROR_CODE mcl_json_util_get_number_value	(	mcl_json_t *	json,
		mcl_int32_t *	number_value
	)

This function gets the number value of a given json object.

Parameters

[in]	json	Root object of `number_value`.
[in]	number_value	Value of `json`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided json or number_value is NULL.

Definition at line 616 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, json_util_get_number_value(), and MCL_OK.

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E_MCL_ERROR_CODE mcl_json_util_get_object_item	(	mcl_json_t *	json_parent,
		const char *	child_name,
		mcl_json_t **	json_child
	)

This function gives the value of json_child object, when the child_name in json_parent object is given.

Parameters

[in]	json_parent	Root json object of `json_child`.
[in]	child_name	Name of the `json_child` object.
[out]	json_child	The json object which is going to be received. New memory space will be allocated for this parameter. Ownership passed to caller. Caller must free the space using MCL_FREE().

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided json_parent, child_name or json_child is NULL.
MCL_NON_EXISTING_JSON_CHILD if json_child doesn't exist in json_parent.

Definition at line 549 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_get_object_item().

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E_MCL_ERROR_CODE mcl_json_util_get_string	(	mcl_json_t *	json_item,
		char **	string_value
	)

This function gets the string value of a given json object.

Parameters

[in]	json_item	Root object of `string_value`.
[in]	string_value	String value of `json_item`. New memory space will be allocated for this parameter. Ownership passed to caller. Caller must free the space.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided json or string_value is NULL.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.

Definition at line 689 of file json_util.c.

References ASSERT_CODE_MESSAGE, ASSERT_NOT_NULL, string_t::buffer, DEBUG_ENTRY, DEBUG_LEAVE, json_util_get_string(), MCL_FREE, MCL_NULL, and MCL_OK.

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E_MCL_ERROR_CODE mcl_json_util_has_child	(	mcl_json_t *	root,
		mcl_bool_t *	result
	)

This function checks whether root object has child object or not.

Parameters

[in]	root	Json object which is going to be checked whether it has child or not.
[out]	result	This bool value is going to be made true, if @ root has child. Otherwise it is false.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root or result is NULL.

Definition at line 587 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, json_util_has_child(), and MCL_OK.

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E_MCL_ERROR_CODE mcl_json_util_initialize	(	E_MCL_JSON_TYPE	json_type,
		mcl_json_t **	root
	)

This function initializes the given root json.

Parameters

[in]	json_type	Type of the json.
[out]	root	Root json.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root is NULL.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.

Definition at line 39 of file json_util.c.

References _convert_mcl_json_type_to_json_type(), ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_initialize().

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E_MCL_ERROR_CODE mcl_json_util_parse	(	const char *	json_string,
		mcl_json_t **	root
	)

This function parses the given string to the given json object.

Parameters

[in]	json_string	String in json format. This given string must be null terminated. New memory space will be allocated for this parameter. Ownership passed to caller. Caller must free the space.
[out]	root	`json_string` is going to be parsed to this root object.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided json_string or root is NULL.
MCL_FAIL If given json has invalid format.
MCL_OUT_OF_MEMORY If memory cannot be allocated for root.

Definition at line 748 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_parse().

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E_MCL_ERROR_CODE mcl_json_util_start_array	(	mcl_json_t *	root,
		const char *	array_name,
		mcl_json_t **	json_array
	)

This function creates an array in root.

Parameters

[in]	root	Root json object.
[in]	array_name	Name of the array which is going to be created in `root`.
[out]	json_array	Json array which is going to be created in `root`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root, array_name or json_array is NULL.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.
MCL_JSON_NAME_DUPLICATION if the same array_name is already used in root as object name.

Definition at line 84 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_start_array().

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E_MCL_ERROR_CODE mcl_json_util_start_object	(	mcl_json_t *	root,
		const char *	object_name,
		mcl_json_t **	json_object
	)

This function creates an object in root.

Parameters

[in]	root	Root json object.
[in]	object_name	Name of the object which is going to be created in `root`.
[out]	json_object	Json object which is going to be created in `root`.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root, object_name or json_object is NULL.
MCL_OUT_OF_MEMORY in case there is not enough memory in the system to proceed.
MCL_JSON_NAME_DUPLICATION if the same object_name is already used in root as object name.

Definition at line 182 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_start_object().

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E_MCL_ERROR_CODE mcl_json_util_to_string	(	mcl_json_t *	root,
		char **	json_string
	)

This function gives the string of root in json format.

Parameters

[in]	root	Root json object.
[out]	json_string	The string of `root` in json format. New memory space will be allocated for this parameter. Ownership passed to caller. Caller must free the space.

Returns

MCL_OK in case of success.
MCL_TRIGGERED_WITH_NULL if provided root or json_string is NULL.
MCL_FAIL either the given json is invalid or memory can not be allocated for root.

Definition at line 722 of file json_util.c.

References ASSERT_NOT_NULL, DEBUG_ENTRY, DEBUG_LEAVE, and json_util_to_string().

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Variable Documentation

cJSON_Hooks cjson_hooks

static

Definition at line 26 of file json_util.c.

Referenced by json_util_initialize_json_library().

Functions

Variables

Detailed Description

Function Documentation

Variable Documentation