asterisk/res/stasis/messaging.h

81 lines
2.4 KiB
C

/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2014, Digium, Inc.
*
* Matt Jordan <mjordan@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 _ASTERISK_RES_STASIS_MESSAGING_H
#define _ASTERISK_RES_STASIS_MESSAGING_H
/*!
* \file
*
* \brief Stasis out-of-call text message support
*
* \author Matt Jordan <mjordan@digium.com>
* \since 12.4.0
*/
/*!
* \brief Callback handler for when a message is received from the core
*
* \param endpoint_id The ID of the endpoint that we received the message from
* \param json_msg JSON representation of the text message
* \param pvt ao2 ref counted pvt passed during registration
*
* \retval 0 the message was handled
* \retval non-zero the message was not handled
*/
typedef int (* message_received_cb)(const char *endpoint_id, struct ast_json *json_msg, void *pvt);
/*!
* \brief Subscribe for messages from a particular endpoint
*
* \param app_name Name of the stasis application to unsubscribe from messaging
* \param endpoint_id The ID of the endpoint we no longer care about
*/
void messaging_app_unsubscribe_endpoint(const char *app_name, const char *endpoint_id);
/*!
* \brief Subscribe an application to an endpoint for messages
*
* \param app_name The name of the \ref stasis application to subscribe to \c endpoint
* \param endpoint The endpoint object to subscribe to
* \param callback The callback to call when a message is received
* \param pvt An ao2 ref counted object that will be passed to the callback.
*
* \retval 0 subscription was successful
* \retval -1 subscription failed
*/
int messaging_app_subscribe_endpoint(const char *app_name, struct ast_endpoint *endpoint, message_received_cb callback, void *pvt);
/*!
* \brief Tidy up the messaging layer
*
* \retval 0 success
* \retval -1 failure
*/
int messaging_cleanup(void);
/*!
* \brief Initialize the messaging layer
*
* \retval 0 success
* \retval -1 failure
*/
int messaging_init(void);
#endif /* #define _ASTERISK_RES_STASIS_MESSAGING_H */