Files
asterisk/res/res_stasis_http_endpoints.c
David M. Lee e06e519a90 Initial support for endpoints.
An endpoint is an external device/system that may offer/accept
channels to/from Asterisk. While this is a very useful concept for end
users, it is surprisingly not a core concept within Asterisk itself.

This patch defines ast_endpoint as a separate object, which channel
drivers may use to expose their concept of an endpoint. As the channel
driver creates channels, it can use ast_endpoint_add_channel() to
associate channels to the endpoint. This updated the endpoint
appropriately, and forwards all of the channel's events to the
endpoint's topic.

In order to avoid excessive locking on the endpoint object itself, the
mutable state is not accessible via getters. Instead, you can create a
snapshot using ast_endpoint_snapshot_create() to get a consistent
snapshot of the internal state.

This patch also includes a set of topics and messages associated with
endpoints, and implementations of the endpoint-related RESTful
API. chan_sip was updated to create endpoints with SIP peers, but the
state of the endpoints is not updated with the state of the peer.

Along for the ride in this patch is a Stasis test API. This is a
stasis_message_sink object, which can be subscribed to a Stasis
topic. It has functions for blocking while waiting for conditions in
the message sink to be fulfilled.

(closes issue ASTERISK-21421)
Review: https://reviewboard.asterisk.org/r/2492/



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@387932 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2013-05-08 13:39:08 +00:00

155 lines
4.5 KiB
C

/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2012 - 2013, Digium, Inc.
*
* David M. Lee, II <dlee@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.
*/
/*
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* !!!!! DO NOT EDIT !!!!!
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* This file is generated by a mustache template. Please see the original
* template in rest-api-templates/res_stasis_http_resource.c.mustache
*/
/*! \file
*
* \brief Endpoint resources
*
* \author David M. Lee, II <dlee@digium.com>
*/
/*** MODULEINFO
<depend type="module">res_stasis_http</depend>
<support_level>core</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/module.h"
#include "stasis_http/resource_endpoints.h"
/*!
* \brief Parameter parsing callback for /endpoints.
* \param get_params GET parameters in the HTTP request.
* \param path_vars Path variables extracted from the request.
* \param headers HTTP headers.
* \param[out] response Response to the HTTP request.
*/
static void stasis_http_get_endpoints_cb(
struct ast_variable *get_params, struct ast_variable *path_vars,
struct ast_variable *headers, struct stasis_http_response *response)
{
struct ast_get_endpoints_args args = {};
stasis_http_get_endpoints(headers, &args, response);
}
/*!
* \brief Parameter parsing callback for /endpoints/{tech}.
* \param get_params GET parameters in the HTTP request.
* \param path_vars Path variables extracted from the request.
* \param headers HTTP headers.
* \param[out] response Response to the HTTP request.
*/
static void stasis_http_get_endpoints_by_tech_cb(
struct ast_variable *get_params, struct ast_variable *path_vars,
struct ast_variable *headers, struct stasis_http_response *response)
{
struct ast_get_endpoints_by_tech_args args = {};
struct ast_variable *i;
for (i = path_vars; i; i = i->next) {
if (strcmp(i->name, "tech") == 0) {
args.tech = (i->value);
} else
{}
}
stasis_http_get_endpoints_by_tech(headers, &args, response);
}
/*!
* \brief Parameter parsing callback for /endpoints/{tech}/{resource}.
* \param get_params GET parameters in the HTTP request.
* \param path_vars Path variables extracted from the request.
* \param headers HTTP headers.
* \param[out] response Response to the HTTP request.
*/
static void stasis_http_get_endpoint_cb(
struct ast_variable *get_params, struct ast_variable *path_vars,
struct ast_variable *headers, struct stasis_http_response *response)
{
struct ast_get_endpoint_args args = {};
struct ast_variable *i;
for (i = path_vars; i; i = i->next) {
if (strcmp(i->name, "tech") == 0) {
args.tech = (i->value);
} else
if (strcmp(i->name, "resource") == 0) {
args.resource = (i->value);
} else
{}
}
stasis_http_get_endpoint(headers, &args, response);
}
/*! \brief REST handler for /api-docs/endpoints.{format} */
static struct stasis_rest_handlers endpoints_tech_resource = {
.path_segment = "resource",
.is_wildcard = 1,
.callbacks = {
[AST_HTTP_GET] = stasis_http_get_endpoint_cb,
},
.num_children = 0,
.children = { }
};
/*! \brief REST handler for /api-docs/endpoints.{format} */
static struct stasis_rest_handlers endpoints_tech = {
.path_segment = "tech",
.is_wildcard = 1,
.callbacks = {
[AST_HTTP_GET] = stasis_http_get_endpoints_by_tech_cb,
},
.num_children = 1,
.children = { &endpoints_tech_resource, }
};
/*! \brief REST handler for /api-docs/endpoints.{format} */
static struct stasis_rest_handlers endpoints = {
.path_segment = "endpoints",
.callbacks = {
[AST_HTTP_GET] = stasis_http_get_endpoints_cb,
},
.num_children = 1,
.children = { &endpoints_tech, }
};
static int load_module(void)
{
return stasis_http_add_handler(&endpoints);
}
static int unload_module(void)
{
stasis_http_remove_handler(&endpoints);
return 0;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT,
"RESTful API module - Endpoint resources",
.load = load_module,
.unload = unload_module,
.nonoptreq = "res_stasis_http",
);