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Asterisk data retrieval API.
This module implements an abstraction for retrieving and exporting asterisk data. Developed by: Brett Bryant <brettbryant@gmail.com> Eliel C. Sardanons (LU1ALY) <eliels@gmail.com> For the Google Summer of code 2009 Project. Documentation can be found in doxygen format and inside the header include/asterisk/data.h Review: https://reviewboard.asterisk.org/r/275/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@258517 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Eliel C. Sardanons
@@ -35,6 +35,7 @@ int astobj2_init(void); /*!< Provided by astobj2.c */
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int ast_file_init(void); /*!< Provided by file.c */
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int ast_features_init(void); /*!< Provided by features.c */
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void ast_autoservice_init(void); /*!< Provided by autoservice.c */
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int ast_data_init(void); /*!< Provided by data.c */
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int ast_http_init(void); /*!< Provided by http.c */
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int ast_http_reload(void); /*!< Provided by http.c */
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int ast_tps_init(void); /*!< Provided by taskprocessor.c */
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@@ -148,6 +148,7 @@ extern "C" {
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#include "asterisk/linkedlists.h"
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#include "asterisk/stringfields.h"
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#include "asterisk/datastore.h"
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#include "asterisk/data.h"
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#include "asterisk/channelstate.h"
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#include "asterisk/ccss.h"
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@@ -2758,6 +2759,26 @@ void ast_channel_queue_redirecting_update(struct ast_channel *chan, const struct
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*/
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int ast_channel_connected_line_macro(struct ast_channel *autoservice_chan, struct ast_channel *macro_chan, const void *connected_info, int caller, int frame);
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/*!
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* \brief Insert into an astdata tree, the channel structure.
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* \param[in] tree The ast data tree.
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* \param[in] chan The channel structure to add to tree.
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* \retval <0 on error.
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* \retval 0 on success.
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*/
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int ast_channel_data_add_structure(struct ast_data *tree, struct ast_channel *chan);
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/*!
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* \brief Compare to channel structures using the data api.
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* \param[in] tree The search tree generated by the data api.
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* \param[in] chan The channel to compare.
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* \param[in] structure_name The name of the node of the channel structure.
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* \retval 0 The structure matches.
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* \retval 1 The structure doesn't matches.
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*/
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int ast_channel_data_cmp_structure(const struct ast_data_search *tree, struct ast_channel *chan,
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const char *structure_name);
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#include "asterisk/ccss.h"
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/*!
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788
include/asterisk/data.h
Normal file
788
include/asterisk/data.h
Normal file
@@ -0,0 +1,788 @@
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2009, Eliel C. Sardanons (LU1ALY) <eliels@gmail.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*!
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* \file
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* \brief Data retrieval API.
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* \author Brett Bryant <brettbryant@gmail.com>
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* \author Eliel C. Sardanons (LU1ALY) <eliels@gmail.com>
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* \arg \ref AstDataRetrieval
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*/
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#ifndef ASTERISK_DATA_H
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#define ASTERISK_DATA_H
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/*!
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* \page AstDataRetrieval The Asterisk DATA retrieval API.
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*
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* This module implements an abstraction for retrieving asterisk data and
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* export it.
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*
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* \section USAGE
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*
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* \subsection Provider
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*
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* \b Register
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*
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* To register a callback use:
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*
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* \code
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* static const struct ast_data_handler callback_handler = {
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* .get = callback_handler_get_function,
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* };
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*
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* ast_data_register("/node/path", &callback_handler);
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* \endcode
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*
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* If you instead want to register multiple nodes at once use:
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* \code
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* static const struct ast_data_handler handler_struct1 = {
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* .get = handler_callback_read,
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* };
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* ... other handlers ...
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*
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* static const struct ast_data_entry list_providers[] = {
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* AST_DATA_ENTRY("/path1/node1", &handler_struct1),
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* AST_DATA_ENTRY("/path2/node2", &handler_struct2),
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* AST_DATA_ENTRY("/path3/node3", &handler_struct3),
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* };
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*
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* ...
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*
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* ast_data_register_multiple(list_providers, ARRAY_LEN(list_providers));
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* \endcode
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*
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* \b Unregister
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*
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* To unregister a callback function already registered you can just call:
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*
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* \code
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* ast_data_unregister(NULL);
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* \endcode
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* And every node registered by the current module (file) will be unregistered.
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* If you want to unregister a specific node use:
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*
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* \code
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* ast_data_unregister("/node/path");
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* \endcode
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*
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* \b Implementation
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*
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* A simple callback function implementation:
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*
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* \code
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* #include <data.h>
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*
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* struct test_structure {
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* int a;
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* double b;
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* };
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*
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* DATA_EXPORT_TEST_STRUCTURE(MEMBER) \
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* MEMBER(test_structure, a, AST_DATA_INTEGER) \
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* MEMBER(test_structure, b, AST_DATA_DOUBLE)
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*
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* AST_DATA_STRUCTURE(test_structure, DATA_EXPORT_TEST_STRUCTURE)
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*
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* static int my_callback_function(struct ast_data_search *search,
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* struct ast_data *root_node)
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* {
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* struct ast_data *internal_node;
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* struct test_structure ts = {
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* .a = 10,
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* .b = 20
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* };
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*
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* if (ast_data_search_cmp_structure(search, test_structure, "test_node")) {
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* return 0;
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* }
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*
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* internal_node = ast_data_add_node(root_node, "test_node");
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* if (!internal_node) {
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* return -1;
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* }
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*
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* ast_data_add_structure(test_structure, internal_node, ts);
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*
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* return 0;
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* }
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*
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* \endcode
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*
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* \subsection Get
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*
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* \b Getting \b the \b tree
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*
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* To get the tree you need to create a query, a query is based on three parameters
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* a \b path to the provider, a \b search condition and a \b filter condition.
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* \code
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* struct ast_data *result;
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* struct ast_data_query query = {
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* .path = "/asterisk/application/app_queue/queues",
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* .search = "/queues/queue/name=queue1",
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* .filter = "/queues/queue/name|wrapuptime|members/member/interface"
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* };
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*
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* result = ast_data_get(&query);
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* \endcode
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*
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* After using it you need to release the allocated memory of the returned tree:
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* \code
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* ast_data_free(result);
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* \endcode
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*
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* \b Iterate
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*
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* To retrieve nodes from the tree, it is possible to iterate through the returned
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* nodes of the tree using:
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* \code
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* struct ast_data_iterator *i;
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* struct ast_data *internal_node;
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*
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* i = ast_data_iterator_init(result_tree, "path/node_name");
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* while ((internal_node = ast_data_iterator_next(i))) {
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* ... do something with node ...
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* }
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* ast_data_iterator_end(i);
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* \endcode
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* node_name is the name of the nodes to retrieve and path is the path to the internal
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* nodes to retrieve (if needed).
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*
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* \b Retrieving
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*
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* After getting the node you where searching for, you will need to retrieve its value,
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* to do that you may use one of the ast_data_retrieve_##type functions:
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* \code
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* int a = ast_data_retrieve_int(tree, "path/to/the/node");
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* double b = ast_data_retrieve_dbl(tree, "path/to/the/node");
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* unsigned int c = ast_data_retrieve_bool(tree, "path/to/the/node");
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* char *d = ast_data_retrieve_string(tree, "path/to/the/node");
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* struct sockaddr_in e = ast_data_retrieve_ipaddr(tree, "path/to/the/node");
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* unsigned int f = ast_data_retrieve_uint(tree, "path/to/the/node");
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* void *g = ast_data_retrieve_ptr(tree, "path/to/the/node");
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* \endcode
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*
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*/
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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/*! \brief The data type of the data node. */
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enum ast_data_type {
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AST_DATA_CONTAINER,
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AST_DATA_INTEGER,
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AST_DATA_UNSIGNED_INTEGER,
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AST_DATA_DOUBLE,
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AST_DATA_BOOLEAN,
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AST_DATA_STRING,
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AST_DATA_IPADDR,
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AST_DATA_POINTER
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};
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/*! \brief The Data API structures version. */
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#define AST_DATA_HANDLER_VERSION 1
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#define AST_DATA_QUERY_VERSION 1
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/*! \brief opaque definition of an ast_data handler, a tree node. */
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struct ast_data;
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/*! \brief opaque definition of an ast_data_iterator handler. */
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struct ast_data_iterator;
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/*! \brief opaque definition of an ast_data_search structure. */
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struct ast_data_search;
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/*! \brief structure retrieved from a node, with the nodes content. */
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struct ast_data_retrieve {
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/*! \brief The type of the node retrieved. */
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enum ast_data_type type;
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union {
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char *AST_DATA_STRING;
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int AST_DATA_INTEGER;
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double AST_DATA_DOUBLE;
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unsigned int AST_DATA_UNSIGNED_INTEGER;
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unsigned int AST_DATA_BOOLEAN;
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void *AST_DATA_POINTER;
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struct in_addr AST_DATA_IPADDR;
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void *AST_DATA_CONTAINER;
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} value;
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};
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/*!
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* \brief The get callback definition.
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*/
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typedef int (*ast_data_get_cb)(const struct ast_data_search *search,
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struct ast_data *root);
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/*! \brief The structure of the node handler. */
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struct ast_data_handler {
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/*! \brief Structure version. */
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uint32_t version;
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/*! \brief Data get callback implementation. */
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ast_data_get_cb get;
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};
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/*! \brief This entries are for multiple registers. */
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struct ast_data_entry {
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/*! \brief Path of the node to register. */
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const char *path;
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/*! \brief Data handler structure. */
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const struct ast_data_handler *handler;
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};
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#define AST_DATA_ENTRY(__path, __handler) { .path = __path, .handler = __handler }
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/*! \brief A query to the data API is specified in this structure. */
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struct ast_data_query {
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/*! \brief Data query version. */
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uint32_t version;
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/*! \brief Path to the node to retrieve. */
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char *path;
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/*! \brief Filter string, return the internal nodes specified here.
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* Setting it to NULL will return every internal node. */
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char *filter;
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/*! \brief Search condition. */
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char *search;
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};
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/*! \brief Map the members of a structure. */
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struct ast_data_mapping_structure {
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/*! \brief structure member name. */
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const char *name;
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/*! \brief structure member type. */
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enum ast_data_type type;
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/*! \brief member getter. */
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union {
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char *(*AST_DATA_STRING)(void *ptr);
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int (*AST_DATA_INTEGER)(void *ptr);
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double (*AST_DATA_DOUBLE)(void *ptr);
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unsigned int (*AST_DATA_UNSIGNED_INTEGER)(void *ptr);
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unsigned int (*AST_DATA_BOOLEAN)(void *ptr);
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void *(*AST_DATA_POINTER)(void *ptr);
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struct in_addr (*AST_DATA_IPADDR)(void *ptr);
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void *(*AST_DATA_CONTAINER)(void *ptr);
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} get;
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};
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/* Generate the structure and the functions to access the members of a structure. */
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#define AST_DATA_STRUCTURE(__struct, __name) \
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__name(__AST_DATA_MAPPING_FUNCTION); \
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static const struct ast_data_mapping_structure __data_mapping_structure_##__struct[] = { \
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__name(__AST_DATA_MAPPING_STRUCTURE) \
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}
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/* Generate the structure to access the members and setup the pointer of the getter. */
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#define __AST_DATA_MAPPING_STRUCTURE(__structure, __member, __type) \
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{ .name = #__member, .get.__type = data_mapping_structure_get_##__structure##__member, \
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.type = __type },
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/* based on the data type, specifify the type of return value for the getter function. */
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#define __AST_DATA_MAPPING_FUNCTION_AST_DATA_STRING(__structure, __member) \
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__AST_DATA_MAPPING_FUNCTION_TYPE(__structure, __member, AST_DATA_STRING, char *)
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#define __AST_DATA_MAPPING_FUNCTION_AST_DATA_INTEGER(__structure, __member) \
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__AST_DATA_MAPPING_FUNCTION_TYPE(__structure, __member, AST_DATA_INTEGER, int)
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#define __AST_DATA_MAPPING_FUNCTION_AST_DATA_UNSIGNED_INTEGER(__structure, __member) \
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__AST_DATA_MAPPING_FUNCTION_TYPE(__structure, __member, AST_DATA_UNSIGNED_INTEGER, unsigned int)
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#define __AST_DATA_MAPPING_FUNCTION_AST_DATA_BOOLEAN(__structure, __member) \
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__AST_DATA_MAPPING_FUNCTION_TYPE(__structure, __member, AST_DATA_BOOLEAN, unsigned int)
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#define __AST_DATA_MAPPING_FUNCTION_AST_DATA_POINTER(__structure, __member) \
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__AST_DATA_MAPPING_FUNCTION_TYPE(__structure, __member, AST_DATA_POINTER, void *)
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#define __AST_DATA_MAPPING_FUNCTION_AST_DATA_IPADDR(__structure, __member) \
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__AST_DATA_MAPPING_FUNCTION_TYPE(__structure, __member, AST_DATA_IPADDR, struct in_addr)
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#define __AST_DATA_MAPPING_FUNCTION_AST_DATA_DOUBLE(__structure, __member) \
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__AST_DATA_MAPPING_FUNCTION_TYPE(__structure, __member, AST_DATA_DBL, double)
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#define __AST_DATA_MAPPING_FUNCTION_AST_DATA_CONTAINER(__structure, __member) \
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__AST_DATA_MAPPING_FUNCTION_TYPE(__structure, __member, AST_DATA_CONTAINER, void *)
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#define __AST_DATA_MAPPING_FUNCTION(__structure, __member, __type) \
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__AST_DATA_MAPPING_FUNCTION_##__type(__structure, __member)
|
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|
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/* Create the function to retrieve a member of the structure. */
|
||||
#define __AST_DATA_MAPPING_FUNCTION_TYPE(__structure, __member, __type, __real_type) \
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static __real_type data_mapping_structure_get_##__structure##__member(void *ptr) { \
|
||||
struct __structure *struct_##__member = (struct __structure *) ptr; \
|
||||
return (__real_type) struct_##__member->__member; \
|
||||
}
|
||||
|
||||
/*!
|
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* \brief Register a data provider.
|
||||
* \param[in] path The path of the node to register.
|
||||
* \param[in] handler The structure defining this node handler.
|
||||
* \param[in] registrar Who is registering this node.
|
||||
* \param[in] mod The module registering this handler.
|
||||
* \see ast_data_unregister
|
||||
* \retval <0 on error.
|
||||
* \retval 0 on success.
|
||||
* \see __ast_data_unregister, __ast_data_register_multiple
|
||||
*/
|
||||
int __ast_data_register(const char *path, const struct ast_data_handler *handler,
|
||||
const char *registrar, struct ast_module *mod);
|
||||
#define ast_data_register(path, handler) __ast_data_register(path, handler, __FILE__, ast_module_info->self)
|
||||
#define ast_data_register_core(path, handler) __ast_data_register(path, handler, __FILE__, NULL)
|
||||
|
||||
/*!
|
||||
* \brief Register multiple data providers at once.
|
||||
* \param[in] data_entries An array of data_entries structures.
|
||||
* \param[in] entries The number of entries in the data_entries array.
|
||||
* \param[in] registrar Who is registering this nodes.
|
||||
* \param[in] mod The module registering this handlers.
|
||||
* \retval <0 on error (none of the nodes are being registered on error).
|
||||
* \retval 0 on success.
|
||||
* \see __ast_data_register, __ast_data_unregister
|
||||
*/
|
||||
int __ast_data_register_multiple(const struct ast_data_entry *data_entries,
|
||||
size_t entries, const char *registrar, struct ast_module *mod);
|
||||
#define ast_data_register_multiple(data_entries, entries) \
|
||||
__ast_data_register_multiple(data_entries, entries, __FILE__, ast_module_info->self)
|
||||
#define ast_data_register_multiple_core(data_entries, entries) \
|
||||
__ast_data_register_multiple(data_entries, entries, __FILE__, NULL)
|
||||
|
||||
/*!
|
||||
* \brief Unregister a data provider.
|
||||
* \param[in] path Which node to unregister, if path is NULL unregister every node
|
||||
* registered by the passed 'registrar'.
|
||||
* \param[in] registrar Who is trying to unregister this node, only the owner (the
|
||||
* one who registered the node) will be able to unregister it.
|
||||
* \see ast_data_register
|
||||
* \retval <0 on error.
|
||||
* \retval 0 on success.
|
||||
* \see __ast_data_register, __ast_data_register_multiple
|
||||
*/
|
||||
int __ast_data_unregister(const char *path, const char *registrar);
|
||||
#define ast_data_unregister(path) __ast_data_unregister(path, __FILE__)
|
||||
|
||||
/*!
|
||||
* \brief Based on a search tree, evaluate the specified 'name' inside the tree with the
|
||||
* current string value.
|
||||
* .search = "somename=somestring"
|
||||
* name = "somename"
|
||||
* value is the current value of something and will be evaluated against "somestring".
|
||||
* \param[in] root The root node pointer of the search tree.
|
||||
* \param[in] name The name of the specific.
|
||||
* \param[in] value The value to compare.
|
||||
* \returns The strcmp return value.
|
||||
*/
|
||||
int ast_data_search_cmp_string(const struct ast_data_search *root, const char *name, char *value);
|
||||
|
||||
/*!
|
||||
* \brief Based on a search tree, evaluate the specified 'name' inside the tree with the
|
||||
* current pointer address value.
|
||||
* .search = "something=0x32323232"
|
||||
* name = "something"
|
||||
* value is the current value of something and will be evaluated against "0x32323232".
|
||||
* \param[in] root The root node pointer of the search tree.
|
||||
* \param[in] name The name of the specific.
|
||||
* \param[in] ptr The pointer address to compare.
|
||||
* \returns The (value - current_value) result.
|
||||
*/
|
||||
int ast_data_search_cmp_ptr(const struct ast_data_search *root, const char *name,
|
||||
void *ptr);
|
||||
|
||||
/*!
|
||||
* \brief Based on a search tree, evaluate the specified 'name' inside the tree with the
|
||||
* current ipv4 address value.
|
||||
* .search = "something=192.168.2.2"
|
||||
* name = "something"
|
||||
* value is the current value of something and will be evaluated against "192.168.2.2".
|
||||
* \param[in] root The root node pointer of the search tree.
|
||||
* \param[in] name The name of the specific.
|
||||
* \param[in] addr The ipv4 address value to compare.
|
||||
* \returns The (value - current_value) result.
|
||||
*/
|
||||
int ast_data_search_cmp_ipaddr(const struct ast_data_search *root, const char *name,
|
||||
struct in_addr addr);
|
||||
|
||||
/*!
|
||||
* \brief Based on a search tree, evaluate the specified 'name' inside the tree with the
|
||||
* current double value.
|
||||
* .search = "something=222"
|
||||
* name = "something"
|
||||
* value is the current value of something and will be evaluated against "222".
|
||||
* \param[in] root The root node pointer of the search tree.
|
||||
* \param[in] name The name of the specific.
|
||||
* \param[in] value The double value to compare.
|
||||
* \returns The (value - current_value) result.
|
||||
*/
|
||||
int ast_data_search_cmp_dbl(const struct ast_data_search *root, const char *name,
|
||||
double value);
|
||||
|
||||
/*!
|
||||
* \brief Based on a search tree, evaluate the specified 'name' inside the tree with the
|
||||
* current boolean value.
|
||||
* .search = "something=true"
|
||||
* name = "something"
|
||||
* value is the current value of something and will be evaluated against "true".
|
||||
* \param[in] root The root node pointer of the search tree.
|
||||
* \param[in] name The name of the specific.
|
||||
* \param[in] value The boolean value to compare.
|
||||
* \returns The (value - current_value) result.
|
||||
*/
|
||||
int ast_data_search_cmp_bool(const struct ast_data_search *root, const char *name,
|
||||
unsigned int value);
|
||||
|
||||
/*!
|
||||
* \brief Based on a search tree, evaluate the specified 'name' inside the tree with the
|
||||
* current unsigned integer value.
|
||||
* .search = "something=10"
|
||||
* name = "something"
|
||||
* value is the current value of something and will be evaluated against "10".
|
||||
* \param[in] root The root node pointer of the search tree.
|
||||
* \param[in] name The name of the specific.
|
||||
* \param[in] value The unsigned value to compare.
|
||||
* \returns The strcmp return value.
|
||||
*/
|
||||
int ast_data_search_cmp_uint(const struct ast_data_search *root, const char *name,
|
||||
unsigned int value);
|
||||
|
||||
/*!
|
||||
* \brief Based on a search tree, evaluate the specified 'name' inside the tree with the
|
||||
* current signed integer value.
|
||||
* .search = "something=10"
|
||||
* name = "something"
|
||||
* value is the current value of something and will be evaluated against "10".
|
||||
* \param[in] root The root node pointer of the search tree.
|
||||
* \param[in] name The name of the specific.
|
||||
* \param[in] value The value to compare.
|
||||
* \returns The strcmp return value.
|
||||
*/
|
||||
int ast_data_search_cmp_int(const struct ast_data_search *root, const char *name, int value);
|
||||
|
||||
/*!
|
||||
* \brief Based on a search tree, evaluate every member of a structure against it.
|
||||
* \param[in] search The search tree.
|
||||
* \param[in] mapping The structure mapping.
|
||||
* \param[in] mapping_len The lenght of the structure mapping.
|
||||
* \param[in] structure The structure pointer.
|
||||
* \param[in] structure_name The name of the structure to compare.
|
||||
* \retval 0 If the structure matches.
|
||||
* \retval 1 If the structure doesn't match.
|
||||
*/
|
||||
int __ast_data_search_cmp_structure(const struct ast_data_search *search,
|
||||
const struct ast_data_mapping_structure *mapping, size_t mapping_len,
|
||||
void *structure, const char *structure_name);
|
||||
#define ast_data_search_cmp_structure(search, structure_name, structure, structure_name_cmp) \
|
||||
__ast_data_search_cmp_structure(search, __data_mapping_structure_##structure_name, \
|
||||
ARRAY_LEN(__data_mapping_structure_##structure_name), structure, structure_name_cmp)
|
||||
|
||||
/*!
|
||||
* \brief Check if there is a compare condition inside the search tree with the
|
||||
* passed 'compare_condition' node names.
|
||||
* \param[in] search The search tree.
|
||||
* \param[in] compare_condition The path of the compare condition.
|
||||
* \retval 0 There is no compare condition.
|
||||
* \retval 1 There is a compare condition.
|
||||
*/
|
||||
int ast_data_search_has_condition(const struct ast_data_search *search,
|
||||
const char *compare_condition);
|
||||
|
||||
/*!
|
||||
* \brief Retrieve a subtree from the asterisk data API.
|
||||
* \param[in] query The query structure specifying what nodes to retrieve.
|
||||
* \retval NULL on error.
|
||||
* \retval non-NULL The dynamically allocated requested sub-tree (it needs to be
|
||||
* released using ast_data_free.
|
||||
* \see ast_data_free, ast_data_get_xml
|
||||
*/
|
||||
struct ast_data *ast_data_get(const struct ast_data_query *query);
|
||||
|
||||
/*!
|
||||
* \brief Retrieve a subtree from the asterisk data API in XML format..
|
||||
* \param[in] query The query structure specifying what nodes to retrieve.
|
||||
* \retval NULL on error.
|
||||
* \retval non-NULL The dynamically allocated requested sub-tree (it needs to be
|
||||
* released using ast_data_free.
|
||||
* \see ast_data_free, ast_data_get
|
||||
*/
|
||||
struct ast_xml_doc *ast_data_get_xml(const struct ast_data_query *query);
|
||||
|
||||
/*!
|
||||
* \brief Release the allocated memory of a tree.
|
||||
* \param[in] root The sub-tree pointer returned by a call to ast_data_get.
|
||||
* \see ast_data_get
|
||||
*/
|
||||
void ast_data_free(struct ast_data *root);
|
||||
|
||||
/*!
|
||||
* \brief Get a node type.
|
||||
* \param[in] res A pointer to the ast_data result set.
|
||||
* \param[in] path A path to the node to get the type.
|
||||
* \return The type of the requested node type.
|
||||
*/
|
||||
enum ast_data_type ast_data_retrieve_type(struct ast_data *res, const char *path);
|
||||
|
||||
/*!
|
||||
* \brief Get the node name.
|
||||
* \param[in] node The node pointer.
|
||||
* \returns The node name.
|
||||
*/
|
||||
char *ast_data_retrieve_name(struct ast_data *node);
|
||||
|
||||
/*!
|
||||
* \brief Add a container child.
|
||||
* \param[in] root The root of the ast_data to insert into.
|
||||
* \param[in] childname The name of the child element to be added.
|
||||
* \retval NULL on error (memory exhaustion only).
|
||||
* \retval non-NULL a newly allocated node.
|
||||
*/
|
||||
struct ast_data *ast_data_add_node(struct ast_data *root, const char *childname);
|
||||
|
||||
/*!
|
||||
* \brief Add an integer node type.
|
||||
* \param[in] root The root of the ast_data to insert into.
|
||||
* \param[in] childname The name of the child element to be added.
|
||||
* \param[in] value The value for the new node.
|
||||
* \retval NULL on error (memory exhaustion only).
|
||||
* \retval non-NULL a newly allocated node.
|
||||
*/
|
||||
struct ast_data *ast_data_add_int(struct ast_data *root, const char *childname,
|
||||
int value);
|
||||
|
||||
/*!
|
||||
* \brief Add an unsigned integer node type.
|
||||
* \param[in] root The root of the ast_data to insert into.
|
||||
* \param[in] childname The name of the child element to be added.
|
||||
* \param[in] value The value for the new node.
|
||||
* \retval NULL on error (memory exhaustion only).
|
||||
* \retval non-NULL a newly allocated node.
|
||||
*/
|
||||
struct ast_data *ast_data_add_uint(struct ast_data *root, const char *childname,
|
||||
unsigned int value);
|
||||
|
||||
/*!
|
||||
* \brief Add a floating point node type.
|
||||
* \param[in] root The root of the ast_data to insert into.
|
||||
* \param[in] childname The name of the child element to be added.
|
||||
* \param[in] dbl The value for the new node.
|
||||
* \retval NULL on error (memory exhaustion only).
|
||||
* \retval non-NULL a newly allocated node.
|
||||
*/
|
||||
struct ast_data *ast_data_add_dbl(struct ast_data *root, const char *childname,
|
||||
double dbl);
|
||||
/*!
|
||||
* \brief Add a ipv4 address type.
|
||||
* \param[in] root The root of the ast_data to insert into.
|
||||
* \param[in] childname The name of the child element to be added.
|
||||
* \param[in] addr The ipv4 address value.
|
||||
* \retval NULL on error (memory exhaustion only).
|
||||
* \retval non-NULL a newly allocated node.
|
||||
*/
|
||||
struct ast_data *ast_data_add_ipaddr(struct ast_data *root, const char *childname,
|
||||
struct in_addr addr);
|
||||
|
||||
/*!
|
||||
* \brief Add a ptr node type.
|
||||
* \param[in] root The root of the ast_data to insert into.
|
||||
* \param[in] childname The name of the child element to be added.
|
||||
* \param[in] ptr The pointer value to add.
|
||||
* \retval NULL on error (memory exhaustion only).
|
||||
* \retval non-NULL a newly allocated node.
|
||||
*/
|
||||
struct ast_data *ast_data_add_ptr(struct ast_data *root, const char *childname,
|
||||
void *ptr);
|
||||
|
||||
/*!
|
||||
* \brief Add a string node type.
|
||||
* \param[in] root The root of the ast_data to insert into.
|
||||
* \param[in] childname The name of the child element to be added.
|
||||
* \param[in] value The value for the new node.
|
||||
* \retval NULL on error (memory exhaustion only).
|
||||
* \retval non-NULL a newly allocated node.
|
||||
*/
|
||||
struct ast_data *ast_data_add_str(struct ast_data *root, const char *childname,
|
||||
const char *string);
|
||||
|
||||
/*!
|
||||
* \brief Add a boolean node type.
|
||||
* \param[in] root The root of the ast_data to insert into.
|
||||
* \param[in] childname The name of the child element to be added.
|
||||
* \param[in] value The value for the new node.
|
||||
* \retval NULL on error (memory exhaustion only).
|
||||
* \retval non-NULL a newly allocated node.
|
||||
*/
|
||||
struct ast_data *ast_data_add_bool(struct ast_data *root, const char *childname,
|
||||
unsigned int boolean);
|
||||
|
||||
/*!
|
||||
* \brief Add a complete structure to a node.
|
||||
* \param[in] root Where to add the structure.
|
||||
* \param[in] mapping The structure mapping array.
|
||||
* \param[in] mapping_len The lenght of the mapping array.
|
||||
* \param[in] structure The structure pointer.
|
||||
* \retval 0 on success.
|
||||
* \retval 1 on error.
|
||||
*/
|
||||
int __ast_data_add_structure(struct ast_data *root,
|
||||
const struct ast_data_mapping_structure *mapping,
|
||||
size_t mapping_len, void *structure);
|
||||
#define ast_data_add_structure(structure_name, root, structure) \
|
||||
__ast_data_add_structure(root, __data_mapping_structure_##structure_name, \
|
||||
ARRAY_LEN(__data_mapping_structure_##structure_name), structure)
|
||||
|
||||
/*!
|
||||
* \brief Remove a node that was added using ast_data_add_
|
||||
* \param[in] root The root node of the node to be removed.
|
||||
* \param[in] child The node pointer to remove.
|
||||
*/
|
||||
void ast_data_remove_node(struct ast_data *root, struct ast_data *child);
|
||||
|
||||
/*!
|
||||
* \brief Initialize an iterator.
|
||||
* \param[in] tree The returned tree by a call to ast_data_get.
|
||||
* \param[in] elements Which elements to iterate through.
|
||||
* \retval NULL on error.
|
||||
* \retval non-NULL A dinamically allocated iterator structure.
|
||||
*/
|
||||
struct ast_data_iterator *ast_data_iterator_init(struct ast_data *tree,
|
||||
const char *elements);
|
||||
|
||||
/*!
|
||||
* \brief Release (stop using) an iterator.
|
||||
* \param[in] iterator The iterator created by ast_data_iterator_start.
|
||||
* \see ast_data_iterator_start
|
||||
*/
|
||||
void ast_data_iterator_end(struct ast_data_iterator *iterator);
|
||||
|
||||
/*!
|
||||
* \brief Get the next node of the tree.
|
||||
* \param[in] iterator The iterator structure returned by ast_data_iterator_start.
|
||||
* \retval NULL when no more nodes to return.
|
||||
* \retval non-NULL A node of the ast_data tree.
|
||||
* \see ast_data_iterator_start, ast_data_iterator_stop
|
||||
*/
|
||||
struct ast_data *ast_data_iterator_next(struct ast_data_iterator *iterator);
|
||||
|
||||
/*!
|
||||
* \brief Retrieve a value from a node in the tree.
|
||||
* \param[in] tree The structure returned by a call to ast_data_get.
|
||||
* \param[in] path The path to the node.
|
||||
* \param[out] content The node content.
|
||||
* \retval 0 on success.
|
||||
* \retval <0 on error.
|
||||
*/
|
||||
int ast_data_retrieve(struct ast_data *tree, const char *path, struct ast_data_retrieve *content);
|
||||
|
||||
/*!
|
||||
* \brief Retrieve the integer value of a node.
|
||||
* \param[in] tree The tree from where to get the value.
|
||||
* \param[in] path The node name or path.
|
||||
* \returns The value of the node.
|
||||
*/
|
||||
static inline int ast_data_retrieve_int(struct ast_data *tree, const char *path)
|
||||
{
|
||||
struct ast_data_retrieve ret;
|
||||
|
||||
ast_data_retrieve(tree, path, &ret);
|
||||
|
||||
return ret.value.AST_DATA_INTEGER;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Retrieve the boolean value of a node.
|
||||
* \param[in] tree The tree from where to get the value.
|
||||
* \param[in] path The node name or path.
|
||||
* \returns The value of the node.
|
||||
*/
|
||||
static inline unsigned int ast_data_retrieve_bool(struct ast_data *tree, const char *path)
|
||||
{
|
||||
struct ast_data_retrieve ret;
|
||||
|
||||
ast_data_retrieve(tree, path, &ret);
|
||||
|
||||
return ret.value.AST_DATA_BOOLEAN;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Retrieve the unsigned integer value of a node.
|
||||
* \param[in] tree The tree from where to get the value.
|
||||
* \param[in] path The node name or path.
|
||||
* \returns The value of the node.
|
||||
*/
|
||||
static inline unsigned int ast_data_retrieve_uint(struct ast_data *tree, const char *path)
|
||||
{
|
||||
struct ast_data_retrieve ret;
|
||||
|
||||
ast_data_retrieve(tree, path, &ret);
|
||||
|
||||
return ret.value.AST_DATA_UNSIGNED_INTEGER;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Retrieve the string value of a node.
|
||||
* \param[in] tree The tree from where to get the value.
|
||||
* \param[in] path The node name or path.
|
||||
* \returns The value of the node.
|
||||
*/
|
||||
static inline const char *ast_data_retrieve_string(struct ast_data *tree, const char *path)
|
||||
{
|
||||
struct ast_data_retrieve ret;
|
||||
|
||||
ast_data_retrieve(tree, path, &ret);
|
||||
|
||||
return ret.value.AST_DATA_STRING;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Retrieve the ptr value of a node.
|
||||
* \param[in] tree The tree from where to get the value.
|
||||
* \param[in] path The node name or path.
|
||||
* \returns The value of the node.
|
||||
*/
|
||||
static inline void *ast_data_retrieve_ptr(struct ast_data *tree, const char *path)
|
||||
{
|
||||
struct ast_data_retrieve ret;
|
||||
|
||||
ast_data_retrieve(tree, path, &ret);
|
||||
|
||||
return ret.value.AST_DATA_POINTER;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Retrieve the double value of a node.
|
||||
* \param[in] tree The tree from where to get the value.
|
||||
* \param[in] path The node name or path.
|
||||
* \returns The value of the node.
|
||||
*/
|
||||
static inline double ast_data_retrieve_dbl(struct ast_data *tree, const char *path)
|
||||
{
|
||||
struct ast_data_retrieve ret;
|
||||
|
||||
ast_data_retrieve(tree, path, &ret);
|
||||
|
||||
return ret.value.AST_DATA_DOUBLE;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Retrieve the ipv4 address value of a node.
|
||||
* \param[in] tree The tree from where to get the value.
|
||||
* \param[in] path The node name or path.
|
||||
* \returns The value of the node.
|
||||
*/
|
||||
static inline struct in_addr ast_data_retrieve_ipaddr(struct ast_data *tree, const char *path)
|
||||
{
|
||||
struct ast_data_retrieve ret;
|
||||
|
||||
ast_data_retrieve(tree, path, &ret);
|
||||
|
||||
return ret.value.AST_DATA_IPADDR;
|
||||
}
|
||||
|
||||
#if defined(__cplusplus) || defined(c_plusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* ASTERISK_DATA_H */
|
||||
@@ -90,6 +90,7 @@
|
||||
* \arg \ref AstThreadStorage
|
||||
* \arg \ref DataStores
|
||||
* \arg \ref AstExtState
|
||||
* \arg \ref AstDataRetrieval
|
||||
*
|
||||
* \subsection model_txt Generic Model
|
||||
* \verbinclude model.txt
|
||||
|
||||
@@ -18,33 +18,76 @@
|
||||
#define _ASTERISK_XML_H
|
||||
|
||||
/*! \file
|
||||
* \brief Asterisk XML abstraction layer
|
||||
* \brief Asterisk XML abstraction layer
|
||||
*/
|
||||
|
||||
struct ast_xml_node;
|
||||
struct ast_xml_doc;
|
||||
|
||||
/*! \brief Initialize the XML library implementation.
|
||||
/*!
|
||||
* \brief Initialize the XML library implementation.
|
||||
* This function is used to setup everything needed
|
||||
* to start working with the xml implementation.
|
||||
* \retval 0 On success.
|
||||
* \retval 1 On error.
|
||||
* \retval 0 On success.
|
||||
* \retval 1 On error.
|
||||
*/
|
||||
int ast_xml_init(void);
|
||||
|
||||
/*! \brief Cleanup library allocated global data.
|
||||
* \retval 0 On success.
|
||||
* \retval 1 On error.
|
||||
/*!
|
||||
* \brief Cleanup library allocated global data.
|
||||
* \retval 0 On success.
|
||||
* \retval 1 On error.
|
||||
*/
|
||||
int ast_xml_finish(void);
|
||||
|
||||
/*! \brief Open an XML document.
|
||||
* \param filename Document path.
|
||||
* \retval NULL on error.
|
||||
* \retval The ast_xml_doc reference to the open document.
|
||||
/*!
|
||||
* \brief Open an XML document.
|
||||
* \param filename Document path.
|
||||
* \retval NULL on error.
|
||||
* \retval The ast_xml_doc reference to the open document.
|
||||
*/
|
||||
struct ast_xml_doc *ast_xml_open(char *filename);
|
||||
|
||||
/*!
|
||||
* \brief Create a XML document.
|
||||
* \retval NULL on error.
|
||||
* \retval non-NULL The allocated document structure.
|
||||
*/
|
||||
struct ast_xml_doc *ast_xml_new(void);
|
||||
|
||||
/*!
|
||||
* \brief Create a XML node.
|
||||
* \param name The name of the node to be created.
|
||||
* \retval NULL on error.
|
||||
* \retval non-NULL The allocated node structe.
|
||||
*/
|
||||
struct ast_xml_node *ast_xml_new_node(const char *name);
|
||||
|
||||
/*!
|
||||
* \brief Add a child node inside a passed parent node.
|
||||
* \param parent The pointer of the parent node.
|
||||
* \param child_name The name of the child node to add.
|
||||
* \retval NULL on error.
|
||||
* \retval non-NULL The created child node pointer.
|
||||
*/
|
||||
struct ast_xml_node *ast_xml_new_child(struct ast_xml_node *parent, const char *child_name);
|
||||
|
||||
/*!
|
||||
* \brief Add a child node, to a specified parent node.
|
||||
* \param parent Where to add the child node.
|
||||
* \param child The child node to add.
|
||||
* \retval NULL on error.
|
||||
* \retval non-NULL The add child node on success.
|
||||
*/
|
||||
struct ast_xml_node *ast_xml_add_child(struct ast_xml_node *parent, struct ast_xml_node *child);
|
||||
|
||||
/*!
|
||||
* \brief Close an already open document and free the used
|
||||
* structure.
|
||||
* \retval doc The document reference.
|
||||
*/
|
||||
void ast_xml_close(struct ast_xml_doc *doc);
|
||||
|
||||
/*! \brief Open an XML document that resides in memory.
|
||||
* \param buffer The address where the document is stored
|
||||
* \size The number of bytes in the document
|
||||
@@ -53,76 +96,117 @@ struct ast_xml_doc *ast_xml_open(char *filename);
|
||||
*/
|
||||
struct ast_xml_doc *ast_xml_read_memory(char *buffer, size_t size);
|
||||
|
||||
/*! \brief Close an already open document and free the used
|
||||
* structure.
|
||||
* \retval doc The document reference.
|
||||
/*!
|
||||
* \brief Specify the root node of a XML document.
|
||||
* \param doc The document pointer.
|
||||
* \param node A pointer to the node we want to set as root node.
|
||||
*/
|
||||
void ast_xml_close(struct ast_xml_doc *doc);
|
||||
void ast_xml_set_root(struct ast_xml_doc *doc, struct ast_xml_node *node);
|
||||
|
||||
/*! \brief Get the document root node.
|
||||
* \param doc Document reference
|
||||
* \retval NULL on error
|
||||
* \retval The root node on success.
|
||||
/*!
|
||||
* \brief Get the document root node.
|
||||
* \param doc Document reference
|
||||
* \retval NULL on error
|
||||
* \retval The root node on success.
|
||||
*/
|
||||
struct ast_xml_node *ast_xml_get_root(struct ast_xml_doc *doc);
|
||||
|
||||
/*! \brief Free node
|
||||
* \param node Node to be released.
|
||||
/*!
|
||||
* \brief Free node
|
||||
* \param node Node to be released.
|
||||
*/
|
||||
void ast_xml_free_node(struct ast_xml_node *node);
|
||||
|
||||
/*! \brief Free an attribute returned by ast_xml_get_attribute()
|
||||
* \param data pointer to be freed.
|
||||
/*!
|
||||
* \brief Free an attribute returned by ast_xml_get_attribute()
|
||||
* \param data pointer to be freed.
|
||||
*/
|
||||
void ast_xml_free_attr(const char *attribute);
|
||||
|
||||
/*! \brief Free a content element that was returned by ast_xml_get_text()
|
||||
* \param text text to be freed.
|
||||
/*!
|
||||
* \brief Get the document based on a node.
|
||||
* \param node A node that is part of the dom.
|
||||
* \returns The dom pointer where this node resides.
|
||||
*/
|
||||
struct ast_xml_doc *ast_xml_get_doc(struct ast_xml_node *node);
|
||||
|
||||
/*!
|
||||
* \brief Free a content element that was returned by ast_xml_get_text()
|
||||
* \param text text to be freed.
|
||||
*/
|
||||
void ast_xml_free_text(const char *text);
|
||||
|
||||
/*! \brief Get a node attribute by name
|
||||
* \param node Node where to search the attribute.
|
||||
* \param attrname Attribute name.
|
||||
* \retval NULL on error
|
||||
* \retval The attribute value on success.
|
||||
/*!
|
||||
* \brief Get a node attribute by name
|
||||
* \param node Node where to search the attribute.
|
||||
* \param attrname Attribute name.
|
||||
* \retval NULL on error
|
||||
* \retval The attribute value on success.
|
||||
*/
|
||||
const char *ast_xml_get_attribute(struct ast_xml_node *node, const char *attrname);
|
||||
|
||||
/*! \brief Find a node element by name.
|
||||
* \param node This is the node starting point.
|
||||
* \param name Node name to find.
|
||||
* \param attrname attribute name to match (if NULL it won't be matched).
|
||||
* \param attrvalue attribute value to match (if NULL it won't be matched).
|
||||
* \retval NULL if not found
|
||||
* \retval The node on success.
|
||||
/*!
|
||||
* \brief Set an attribute to a node.
|
||||
* \param node In which node we want to insert the attribute.
|
||||
* \param name The attribute name.
|
||||
* \param value The attribute value.
|
||||
* \retval 0 on success.
|
||||
* \retval -1 on error.
|
||||
*/
|
||||
int ast_xml_set_attribute(struct ast_xml_node *node, const char *name, const char *value);
|
||||
|
||||
/*!
|
||||
* \brief Find a node element by name.
|
||||
* \param node This is the node starting point.
|
||||
* \param name Node name to find.
|
||||
* \param attrname attribute name to match (if NULL it won't be matched).
|
||||
* \param attrvalue attribute value to match (if NULL it won't be matched).
|
||||
* \retval NULL if not found
|
||||
* \retval The node on success.
|
||||
*/
|
||||
struct ast_xml_node *ast_xml_find_element(struct ast_xml_node *root_node, const char *name, const char *attrname, const char *attrvalue);
|
||||
struct ast_xml_ns *ast_xml_find_namespace(struct ast_xml_doc *doc, struct ast_xml_node *node, const char *ns_name);
|
||||
const char *ast_xml_get_ns_href(struct ast_xml_ns *ns);
|
||||
|
||||
/*! \brief Get an element content string.
|
||||
* \param node Node from where to get the string.
|
||||
* \retval NULL on error.
|
||||
* \retval The text content of node.
|
||||
/*!
|
||||
* \brief Get an element content string.
|
||||
* \param node Node from where to get the string.
|
||||
* \retval NULL on error.
|
||||
* \retval The text content of node.
|
||||
*/
|
||||
const char *ast_xml_get_text(struct ast_xml_node *node);
|
||||
|
||||
/*! \brief Get the name of a node. */
|
||||
/*!
|
||||
* \brief Set an element content string.
|
||||
* \param node Node from where to set the content string.
|
||||
* \param content The text to insert in the node.
|
||||
*/
|
||||
void ast_xml_set_text(struct ast_xml_node *node, const char *content);
|
||||
|
||||
/*!
|
||||
* \brief Get the name of a node. */
|
||||
const char *ast_xml_node_get_name(struct ast_xml_node *node);
|
||||
|
||||
/*! \brief Get the node's children. */
|
||||
/*!
|
||||
* \brief Get the node's children. */
|
||||
struct ast_xml_node *ast_xml_node_get_children(struct ast_xml_node *node);
|
||||
|
||||
/*! \brief Get the next node in the same level. */
|
||||
/*!
|
||||
* \brief Get the next node in the same level. */
|
||||
struct ast_xml_node *ast_xml_node_get_next(struct ast_xml_node *node);
|
||||
|
||||
/*! \brief Get the previous node in the same leve. */
|
||||
/*!
|
||||
* \brief Get the previous node in the same leve. */
|
||||
struct ast_xml_node *ast_xml_node_get_prev(struct ast_xml_node *node);
|
||||
|
||||
/*! \brief Get the parent of a specified node. */
|
||||
/*!
|
||||
* \brief Get the parent of a specified node. */
|
||||
struct ast_xml_node *ast_xml_node_get_parent(struct ast_xml_node *node);
|
||||
|
||||
/*!
|
||||
* \brief Dump the specified document to a file. */
|
||||
int ast_xml_doc_dump_file(FILE *output, struct ast_xml_doc *doc);
|
||||
|
||||
/* Features using ast_xml_ */
|
||||
#ifdef HAVE_LIBXML2
|
||||
#define AST_XML_DOCS
|
||||
|
||||
Reference in New Issue
Block a user