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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2013, Digium, Inc.
*
* Kevin Harwell <kharwell@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
#ifndef _RES_SIP_EXTEN_STATE_H
#define _RES_SIP_EXTEN_STATE_H
#include "asterisk/stringfields.h"
#include "asterisk/linkedlists.h"
#include "asterisk/pbx.h"
#include "asterisk/presencestate.h"
/*!
* \brief Contains information pertaining to extension/device state changes.
*/
struct ast_sip_exten_state_data {
/*! The extension of the current state change */
const char *exten;
/*! The extension state of the change */
enum ast_extension_states exten_state;
/*! The presence state of the change */
enum ast_presence_state presence_state;
/*! Current device state information */
struct ao2_container *device_state_info;
};
/*!
* \brief Extension state provider.
*/
struct ast_sip_exten_state_provider {
/*! The name of the event this provider registers for */
const char *event_name;
/*! Type of the body, ex: "application" */
const char *type;
/*! Subtype of the body, ex: "pidf+xml" */
const char *subtype;
/*! Type/Subtype together - ex: application/pidf+xml */
const char *body_type;
/*! Subscription handler to be used and associated with provider */
struct ast_sip_subscription_handler *handler;
/*!
* \brief Create the body text of a NOTIFY request.
*
* Implementors use this to create body information within the given
* ast_str. That information is then added to the NOTIFY request.
*
* \param data Current extension state changes
* \param local URI of the dialog's local party, e.g. 'from'
* \param remote URI of the dialog's remote party, e.g. 'to'
* \param body_text Out parameter used to populate the NOTIFY msg body
* \retval 0 Successfully created the body's text
* \retval -1 Failed to create the body's text
*/
int (*create_body)(struct ast_sip_exten_state_data *data, const char *local,
const char *remote, struct ast_str **body_text);
/*! Next item in the list */
AST_LIST_ENTRY(ast_sip_exten_state_provider) next;
};
/*!
* \brief Registers an extension state provider.
*
* \param obj An extension state provider
* \retval 0 Successfully registered the extension state provider
* \retval -1 Failed to register the extension state provider
*/
int ast_sip_register_exten_state_provider(struct ast_sip_exten_state_provider *obj);
/*!
* \brief Unregisters an extension state provider.
*
* \param obj An extension state provider
*/
void ast_sip_unregister_exten_state_provider(struct ast_sip_exten_state_provider *obj);
#endif
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