resource_events.c File Reference

/api-docs/events.{format} implementation- WebSocket resource More...

#include "asterisk.h"
#include "resource_events.h"
#include "asterisk/astobj2.h"
#include "asterisk/http_websocket.h"
#include "asterisk/stasis_app.h"
#include "asterisk/vector.h"

Include dependency graph for resource_events.c:

Go to the source code of this file.

Data Structures
struct	event_session
	A wrapper for the /ref ast_ari_websocket_session. More...

Macros
#define	APPS_NUM_BUCKETS   7
#define	EVENT_SESSION_NUM_BUCKETS   23
#define	MESSAGES_INIT_SIZE   23

Enumerations
enum	event_session_error_type { ERROR_TYPE_STASIS_REGISTRATION = 1 , ERROR_TYPE_OOM = 2 , ERROR_TYPE_MISSING_APP_PARAM = 3 , ERROR_TYPE_INVALID_APP_PARAM = 4 }
	event_session error types. More...

Functions
void	ast_ari_events_user_event (struct ast_variable *headers, struct ast_ari_events_user_event_args *args, struct ast_ari_response *response)
	Generate a user event. More...
int	ast_ari_websocket_events_event_websocket_attempted (struct ast_tcptls_session_instance *ser, struct ast_variable *headers, struct ast_ari_events_event_websocket_args *args, const char *session_id)
	WebSocket connection for events. More...
void	ast_ari_websocket_events_event_websocket_dtor (void)
	WebSocket connection for events. More...
void	ast_ari_websocket_events_event_websocket_established (struct ast_ari_websocket_session *ws_session, struct ast_variable *headers, struct ast_ari_events_event_websocket_args *args)
	WebSocket connection for events. More...
int	ast_ari_websocket_events_event_websocket_init (void)
	WebSocket connection for events. More...
static int	event_session_alloc (struct ast_tcptls_session_instance *ser, struct ast_ari_events_event_websocket_args *args, const char *session_id)
	Creates an event_session object and registers its apps with Stasis. More...
static int	event_session_allocation_error_handler (struct event_session *session, enum event_session_error_type error, struct ast_tcptls_session_instance *ser)
	Handles event_session error processing. More...
static void	event_session_cleanup (struct event_session *session)
	Processes cleanup actions for a event_session object. More...
static int	event_session_compare (void *obj, void *arg, int flags)
	AO2 comparison function for event_session objects. More...
static void	event_session_dtor (void *obj)
	Event session object destructor (event_session). More...
static int	event_session_hash (const void *obj, const int flags)
	AO2 hash function for event_session objects. More...
static void	event_session_shutdown (struct event_session *session)
	Explicitly shutdown a session. More...
static int	event_session_shutdown_cb (void *session, void *arg, int flags)
static void	event_session_update_websocket (struct event_session *session, struct ast_ari_websocket_session *ws_session)
	Updates the websocket session for an event_session. More...
static void	stasis_app_message_handler (void *data, const char *app_name, struct ast_json *message)
	Callback handler for Stasis application messages. More...

Variables
static struct ao2_container *	event_session_registry
	Local registry for created event_session objects. More...

Detailed Description

/api-docs/events.{format} implementation- WebSocket resource

Author

David M. Lee, II dlee@.nosp@m.digi.nosp@m.um.co.nosp@m.m

Definition in file resource_events.c.

Macro Definition Documentation

APPS_NUM_BUCKETS

#define APPS_NUM_BUCKETS   7

Number of buckets for a websocket apps container. Remember to keep it a prime number!

Definition at line 42 of file resource_events.c.

EVENT_SESSION_NUM_BUCKETS

#define EVENT_SESSION_NUM_BUCKETS   23

Number of buckets for the event session registry. Remember to keep it a prime number!

Definition at line 39 of file resource_events.c.

MESSAGES_INIT_SIZE

#define MESSAGES_INIT_SIZE   23

Initial size of a message queue.

Definition at line 45 of file resource_events.c.

Enumeration Type Documentation

event_session_error_type

enum event_session_error_type

event_session error types.

Enumerator
ERROR_TYPE_STASIS_REGISTRATION	Stasis failed to register the application.
ERROR_TYPE_OOM	Insufficient memory to create the event session.
ERROR_TYPE_MISSING_APP_PARAM	HTTP request was missing an [app] parameter.
ERROR_TYPE_INVALID_APP_PARAM	HTTP request contained an invalid [app] parameter.

Definition at line 58 of file resource_events.c.

                              {
    ERROR_TYPE_STASIS_REGISTRATION = 1,  /*!< Stasis failed to register the application. */
    ERROR_TYPE_OOM = 2,                  /*!< Insufficient memory to create the event
                                              session. */
    ERROR_TYPE_MISSING_APP_PARAM = 3,    /*!< HTTP request was missing an [app] parameter. */
    ERROR_TYPE_INVALID_APP_PARAM = 4,    /*!< HTTP request contained an invalid [app]
                                              parameter. */
};

Function Documentation

ast_ari_events_user_event()

void ast_ari_events_user_event	(	struct ast_variable *	headers,
		struct ast_ari_events_user_event_args *	args,
		struct ast_ari_response *	response
	)

Generate a user event.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 532 of file resource_events.c.

{
    enum stasis_app_user_event_res res;
    struct ast_json *json_variables = NULL;
 
    if (args->variables) {
        ast_ari_events_user_event_parse_body(args->variables, args);
        json_variables = ast_json_object_get(args->variables, "variables");
    }
 
    if (ast_strlen_zero(args->application)) {
        ast_ari_response_error(response, 400, "Bad Request",
            "Missing parameter application");
        return;
    }
 
    res = stasis_app_user_event(args->application,
        args->event_name,
        args->source, args->source_count,
        json_variables);
 
    switch (res) {
    case STASIS_APP_USER_OK:
        ast_ari_response_no_content(response);
        break;
 
    case STASIS_APP_USER_APP_NOT_FOUND:
        ast_ari_response_error(response, 404, "Not Found",
            "Application not found");
        break;
 
    case STASIS_APP_USER_EVENT_SOURCE_NOT_FOUND:
        ast_ari_response_error(response, 422, "Unprocessable Entity",
            "Event source was not found");
        break;
 
    case STASIS_APP_USER_EVENT_SOURCE_BAD_SCHEME:
        ast_ari_response_error(response, 400, "Bad Request",
            "Invalid event source URI scheme");
        break;
 
    case STASIS_APP_USER_USEREVENT_INVALID:
        ast_ari_response_error(response, 400, "Bad Request",
            "Invalid userevent data");
        break;
 
    case STASIS_APP_USER_INTERNAL_ERROR:
    default:
        ast_ari_response_error(response, 500, "Internal Server Error",
            "Error processing request");
    }
}

References args, ast_ari_events_user_event_parse_body(), ast_ari_response_error(), ast_ari_response_no_content(), ast_json_object_get(), ast_strlen_zero(), NULL, STASIS_APP_USER_APP_NOT_FOUND, stasis_app_user_event(), STASIS_APP_USER_EVENT_SOURCE_BAD_SCHEME, STASIS_APP_USER_EVENT_SOURCE_NOT_FOUND, STASIS_APP_USER_INTERNAL_ERROR, STASIS_APP_USER_OK, and STASIS_APP_USER_USEREVENT_INVALID.

Referenced by ast_ari_events_user_event_cb().

ast_ari_websocket_events_event_websocket_attempted()

int ast_ari_websocket_events_event_websocket_attempted	(	struct ast_tcptls_session_instance *	ser,
		struct ast_variable *	headers,
		struct ast_ari_events_event_websocket_args *	args,
		const char *	session_id
	)

WebSocket connection for events.

Parameters

ser	HTTP TCP/TLS Server Session
headers	HTTP headers
args	Swagger parameters
session_id	The id of the current session.

Return values

0	success
non-zero	error

Definition at line 488 of file resource_events.c.

{
    ast_debug(3, "/events WebSocket attempted\n");
 
    /* Create the event session */
    return event_session_alloc(ser, args, session_id);
}

References args, ast_debug, event_session_alloc(), and event_session::session_id.

Referenced by ast_ari_events_event_websocket_ws_attempted_cb().

ast_ari_websocket_events_event_websocket_dtor()

void ast_ari_websocket_events_event_websocket_dtor

(

void

)

WebSocket connection for events.

Definition at line 465 of file resource_events.c.

{
    ao2_callback(event_session_registry, OBJ_MULTIPLE | OBJ_NODATA, event_session_shutdown_cb, NULL);
 
    ao2_cleanup(event_session_registry);
    event_session_registry = NULL;
}

References ao2_callback, ao2_cleanup, event_session_registry, event_session_shutdown_cb(), NULL, OBJ_MULTIPLE, and OBJ_NODATA.

Referenced by load_module(), and unload_module().

ast_ari_websocket_events_event_websocket_established()

void ast_ari_websocket_events_event_websocket_established	(	struct ast_ari_websocket_session *	session,
		struct ast_variable *	headers,
		struct ast_ari_events_event_websocket_args *	args
	)

WebSocket connection for events.

Parameters

session	ARI WebSocket.
headers	HTTP headers.
args	Swagger parameters.

Definition at line 498 of file resource_events.c.

{
    struct event_session *session;
 
    struct ast_json *msg;
    const char *session_id;
 
    ast_debug(3, "/events WebSocket established\n");
 
    ast_assert(ws_session != NULL);
 
    session_id = ast_ari_websocket_session_id(ws_session);
 
    /* Find the event_session and update its websocket  */
    session = ao2_find(event_session_registry, session_id, OBJ_SEARCH_KEY);
    if (session) {
        ao2_unlink(event_session_registry, session);
        event_session_update_websocket(session, ws_session);
    } else {
        ast_log(LOG_WARNING,
            "Failed to locate an event session for the provided websocket session\n");
    }
 
    /* We don't process any input, but we'll consume it waiting for EOF */
    while ((msg = ast_ari_websocket_session_read(ws_session))) {
        ast_json_unref(msg);
    }
 
    event_session_cleanup(session);
    ao2_ref(session, -1);
}

References ao2_find, ao2_ref, ao2_unlink, ast_ari_websocket_session_id(), ast_ari_websocket_session_read(), ast_assert, ast_debug, ast_json_unref(), ast_log, event_session_cleanup(), event_session_registry, event_session_update_websocket(), LOG_WARNING, NULL, OBJ_SEARCH_KEY, and session.

Referenced by ast_ari_events_event_websocket_ws_established_cb().

ast_ari_websocket_events_event_websocket_init()

int ast_ari_websocket_events_event_websocket_init

(

void

)

WebSocket connection for events.

Return values

0	success
-1	error

Definition at line 473 of file resource_events.c.

{
    /* Try to instantiate the registry */
    event_session_registry = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0,
        EVENT_SESSION_NUM_BUCKETS, event_session_hash, NULL, event_session_compare);
    if (!event_session_registry) {
        /* This is bad, bad. */
        ast_log(LOG_WARNING,
                "Failed to allocate the local registry for websocket applications\n");
        return -1;
    }
 
    return 0;
}

References AO2_ALLOC_OPT_LOCK_MUTEX, ao2_container_alloc_hash, ast_log, event_session_compare(), event_session_hash(), EVENT_SESSION_NUM_BUCKETS, event_session_registry, LOG_WARNING, and NULL.

Referenced by load_module().

event_session_alloc()

static int event_session_alloc ( struct ast_tcptls_session_instance *  ser, struct ast_ari_events_event_websocket_args *  args, const char *  session_id  )

static

Creates an event_session object and registers its apps with Stasis.

Definition at line 388 of file resource_events.c.

{
    RAII_VAR(struct event_session *, session, NULL, ao2_cleanup);
    int (* register_handler)(const char *, stasis_app_cb handler, void *data);
    size_t size, i;
 
    /* The request must have at least one [app] parameter */
    if (args->app_count == 0) {
        return event_session_allocation_error_handler(
            session, ERROR_TYPE_MISSING_APP_PARAM, ser);
    }
 
    size = sizeof(*session) + strlen(session_id) + 1;
 
    /* Instantiate the event session */
    session = ao2_alloc(size, event_session_dtor);
    if (!session) {
        return event_session_allocation_error_handler(session, ERROR_TYPE_OOM, ser);
    }
 
    strncpy(session->session_id, session_id, size - sizeof(*session));
 
    /* Instantiate the hash table for Stasis apps */
    session->websocket_apps =
        ast_str_container_alloc(APPS_NUM_BUCKETS);
 
    if (!session->websocket_apps) {
        return event_session_allocation_error_handler(session, ERROR_TYPE_OOM, ser);
    }
 
    /* Instantiate the message queue */
    if (AST_VECTOR_INIT(&session->message_queue, MESSAGES_INIT_SIZE)) {
        return event_session_allocation_error_handler(session, ERROR_TYPE_OOM, ser);
    }
 
    /* Register the apps with Stasis */
    if (args->subscribe_all) {
        register_handler = &stasis_app_register_all;
    } else {
        register_handler = &stasis_app_register;
    }
 
    for (i = 0; i < args->app_count; ++i) {
        const char *app = args->app[i];
 
        if (ast_strlen_zero(app)) {
            return event_session_allocation_error_handler(
                session, ERROR_TYPE_INVALID_APP_PARAM, ser);
        }
 
        if (ast_str_container_add(session->websocket_apps, app)) {
            return event_session_allocation_error_handler(session, ERROR_TYPE_OOM, ser);
        }
 
        if (register_handler(app, stasis_app_message_handler, session)) {
            ast_log(LOG_WARNING, "Stasis registration failed for application: '%s'\n", app);
            return event_session_allocation_error_handler(
                session, ERROR_TYPE_STASIS_REGISTRATION, ser);
        }
    }
 
    /* Add the event session to the local registry */
    if (!ao2_link(event_session_registry, session)) {
        return event_session_allocation_error_handler(session, ERROR_TYPE_OOM, ser);
    }
 
    return 0;
}

References ao2_alloc, ao2_cleanup, ao2_link, app, APPS_NUM_BUCKETS, args, ast_log, ast_str_container_add(), ast_str_container_alloc, ast_strlen_zero(), AST_VECTOR_INIT, ERROR_TYPE_INVALID_APP_PARAM, ERROR_TYPE_MISSING_APP_PARAM, ERROR_TYPE_OOM, ERROR_TYPE_STASIS_REGISTRATION, event_session_allocation_error_handler(), event_session_dtor(), event_session_registry, handler(), LOG_WARNING, MESSAGES_INIT_SIZE, NULL, RAII_VAR, session, event_session::session_id, stasis_app_message_handler(), stasis_app_register(), and stasis_app_register_all().

Referenced by ast_ari_websocket_events_event_websocket_attempted().

event_session_allocation_error_handler()

static int event_session_allocation_error_handler ( struct event_session *  session, enum event_session_error_type  error, struct ast_tcptls_session_instance *  ser  )

static

Handles event_session error processing.

Definition at line 339 of file resource_events.c.

{
    /* Notify the client */
    switch (error) {
    case ERROR_TYPE_STASIS_REGISTRATION:
        ast_http_error(ser, 500, "Internal Server Error",
            "Stasis registration failed");
        break;
 
    case ERROR_TYPE_OOM:
        ast_http_error(ser, 500, "Internal Server Error",
            "Allocation failed");
        break;
 
    case ERROR_TYPE_MISSING_APP_PARAM:
        ast_http_error(ser, 400, "Bad Request",
            "HTTP request is missing param: [app]");
        break;
 
    case ERROR_TYPE_INVALID_APP_PARAM:
        ast_http_error(ser, 400, "Bad Request",
            "Invalid application provided in param [app].");
        break;
 
    default:
        break;
    }
 
    /* Cleanup the session */
    event_session_cleanup(session);
    return -1;
}

References ast_http_error(), error(), ERROR_TYPE_INVALID_APP_PARAM, ERROR_TYPE_MISSING_APP_PARAM, ERROR_TYPE_OOM, ERROR_TYPE_STASIS_REGISTRATION, event_session_cleanup(), and session.

Referenced by event_session_alloc().

event_session_cleanup()

static void event_session_cleanup ( struct event_session *  session )

static

Processes cleanup actions for a event_session object.

Definition at line 297 of file resource_events.c.

{
    if (!session) {
        return;
    }
 
    event_session_shutdown(session);
    if (event_session_registry) {
        ao2_unlink(event_session_registry, session);
    }
}

References ao2_unlink, event_session_registry, event_session_shutdown(), and session.

Referenced by ast_ari_websocket_events_event_websocket_established(), event_session_allocation_error_handler(), and event_session_shutdown_cb().

event_session_compare()

static int event_session_compare ( void *  obj, void *  arg, int  flags  )

static

AO2 comparison function for event_session objects.

Definition at line 153 of file resource_events.c.

{
    const struct event_session *object_left = obj;
    const struct event_session *object_right = arg;
    const char *right_key = arg;
    int cmp = 0;
 
    switch (flags & OBJ_SEARCH_MASK) {
    case OBJ_SEARCH_OBJECT:
        right_key = object_right->session_id;
        /* Fall through */
    case OBJ_SEARCH_KEY:
        cmp = strcmp(object_left->session_id, right_key);
        break;
    case OBJ_SEARCH_PARTIAL_KEY:
        cmp = strncmp(object_left->session_id, right_key, strlen(right_key));
        break;
    default:
        break;
    }
 
    return cmp ? 0 : CMP_MATCH;
}

References CMP_MATCH, OBJ_SEARCH_KEY, OBJ_SEARCH_MASK, OBJ_SEARCH_OBJECT, OBJ_SEARCH_PARTIAL_KEY, and event_session::session_id.

Referenced by ast_ari_websocket_events_event_websocket_init().

event_session_dtor()

static void event_session_dtor ( void *  obj )

static

Event session object destructor (event_session).

Definition at line 316 of file resource_events.c.

{
#ifdef AST_DEVMODE /* Avoid unused variable warning */
    struct event_session *session = obj;
#endif
 
    /* event_session_shutdown should have been called before now */
    ast_assert(session->ws_session == NULL);
    ast_assert(session->websocket_apps == NULL);
    ast_assert(AST_VECTOR_SIZE(&session->message_queue) == 0);
}

References ast_assert, AST_VECTOR_SIZE, NULL, and session.

Referenced by event_session_alloc().

event_session_hash()

static int event_session_hash ( const void *  obj, const int  flags  )

static

AO2 hash function for event_session objects.

Computes hash value for the given event_session, with respect to the provided search flags.

Definition at line 191 of file resource_events.c.

{
    const struct event_session *session;
    const char *key;
 
    switch (flags & OBJ_SEARCH_MASK) {
    case OBJ_SEARCH_KEY:
        key = obj;
        break;
    case OBJ_SEARCH_OBJECT:
        session = obj;
        key = session->session_id;
        break;
    default:
        /* Hash can only work on something with a full key. */
        ast_assert(0);
        return 0;
    }
    return ast_str_hash(key);
}

References ast_assert, ast_str_hash(), OBJ_SEARCH_KEY, OBJ_SEARCH_MASK, OBJ_SEARCH_OBJECT, and session.

Referenced by ast_ari_websocket_events_event_websocket_init().

event_session_shutdown()

static void event_session_shutdown ( struct event_session *  session )

static

Explicitly shutdown a session.

An explicit shutdown is necessary, since the stasis_app has a reference to this session. We also need to be sure to null out the ws_session field, since the websocket is about to go away.

Definition at line 223 of file resource_events.c.

{
    struct ao2_iterator i;
    char *app;
    int j;
    SCOPED_AO2LOCK(lock, session);
 
    /* Clean up the websocket_apps container */
    if (session->websocket_apps) {
        i = ao2_iterator_init(session->websocket_apps, 0);
        while ((app = ao2_iterator_next(&i))) {
            stasis_app_unregister(app);
            ao2_cleanup(app);
        }
        ao2_iterator_destroy(&i);
        ao2_cleanup(session->websocket_apps);
        session->websocket_apps = NULL;
    }
 
    /* Clean up the message_queue container */
    for (j = 0; j < AST_VECTOR_SIZE(&session->message_queue); j++) {
        struct ast_json *msg = AST_VECTOR_GET(&session->message_queue, j);
        ast_json_unref(msg);
    }
    AST_VECTOR_FREE(&session->message_queue);
 
    /* Remove the handle to the underlying websocket session */
    session->ws_session = NULL;
}

References ao2_cleanup, ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, app, ast_json_unref(), AST_VECTOR_FREE, AST_VECTOR_GET, AST_VECTOR_SIZE, lock, NULL, SCOPED_AO2LOCK, session, and stasis_app_unregister().

Referenced by event_session_cleanup().

event_session_shutdown_cb()

static int event_session_shutdown_cb ( void *  session, void *  arg, int  flags  )

static

Definition at line 458 of file resource_events.c.

{
    event_session_cleanup(session);
 
    return 0;
}

References event_session_cleanup(), and session.

Referenced by ast_ari_websocket_events_event_websocket_dtor().

event_session_update_websocket()

static void event_session_update_websocket ( struct event_session *  session, struct ast_ari_websocket_session *  ws_session  )

static

Updates the websocket session for an event_session.

The websocket for the given event_session will be updated to the value of the ws_session argument.

If the value of the ws_session is not NULL and there are messages in the event session's message_queue, the messages are dispatched and removed from the queue.

Definition at line 269 of file resource_events.c.

{
    int i;
 
    ast_assert(session != NULL);
 
    ao2_lock(session);
 
    session->ws_session = ws_session;
 
    for (i = 0; i < AST_VECTOR_SIZE(&session->message_queue); i++) {
        struct ast_json *msg = AST_VECTOR_GET(&session->message_queue, i);
        ast_ari_websocket_session_write(session->ws_session, msg);
        ast_json_unref(msg);
    }
 
    AST_VECTOR_RESET(&session->message_queue, AST_VECTOR_ELEM_CLEANUP_NOOP);
    ao2_unlock(session);
}

References ao2_lock, ao2_unlock, ast_ari_websocket_session_write(), ast_assert, ast_json_unref(), AST_VECTOR_ELEM_CLEANUP_NOOP, AST_VECTOR_GET, AST_VECTOR_RESET, AST_VECTOR_SIZE, NULL, and session.

Referenced by ast_ari_websocket_events_event_websocket_established().

stasis_app_message_handler()

static void stasis_app_message_handler ( void *  data, const char *  app_name, struct ast_json *  message  )

static

Callback handler for Stasis application messages.

Definition at line 79 of file resource_events.c.

{
    struct event_session *session = data;
    const char *msg_type, *msg_application;
    int app_debug_enabled;
 
    ast_assert(session != NULL);
 
    /*
     * We need to get the debug flag before locking session
     * to help prevent a deadlock with the apps_registry container.
     */
    app_debug_enabled = stasis_app_get_debug_by_name(app_name);
 
    ao2_lock(session);
 
    msg_type = S_OR(ast_json_string_get(ast_json_object_get(message, "type")), "");
    msg_application = S_OR(
        ast_json_string_get(ast_json_object_get(message, "application")), "");
 
    /* If we've been replaced, remove the application from our local
       websocket_apps container */
    if (strcmp(msg_type, "ApplicationReplaced") == 0 &&
        strcmp(msg_application, app_name) == 0) {
        ao2_find(session->websocket_apps, msg_application,
            OBJ_UNLINK | OBJ_NODATA);
    }
 
    /* Now, we need to determine our state to see how we will handle the message */
    if (ast_json_object_set(message, "application", ast_json_string_create(app_name))) {
        /* We failed to add an application element to our json message */
        ast_log(LOG_WARNING,
                "Failed to dispatch '%s' message from Stasis app '%s'; could not update message\n",
                msg_type,
                msg_application);
    } else if (!session->ws_session) {
        /* If the websocket is NULL, the message goes to the queue */
        if (!AST_VECTOR_APPEND(&session->message_queue, message)) {
            ast_json_ref(message);
        }
        ast_log(LOG_WARNING,
                "Queued '%s' message for Stasis app '%s'; websocket is not ready\n",
                msg_type,
                msg_application);
    } else if (stasis_app_event_allowed(app_name, message)) {
        if (app_debug_enabled) {
            char *str = ast_json_dump_string_format(message, ast_ari_json_format());
 
            ast_verbose("<--- Sending ARI event to %s --->\n%s\n",
                ast_sockaddr_stringify(ast_ari_websocket_session_get_remote_addr(session->ws_session)),
                str);
            ast_json_free(str);
        }
 
        /* We are ready to publish the message */
        ast_ari_websocket_session_write(session->ws_session, message);
    }
 
    ao2_unlock(session);
}

References ao2_find, ao2_lock, ao2_unlock, app_name(), ast_ari_json_format(), ast_ari_websocket_session_get_remote_addr(), ast_ari_websocket_session_write(), ast_assert, ast_json_dump_string_format(), ast_json_free(), ast_json_object_get(), ast_json_object_set(), ast_json_ref(), ast_json_string_create(), ast_json_string_get(), ast_log, ast_sockaddr_stringify(), AST_VECTOR_APPEND, ast_verbose(), LOG_WARNING, NULL, OBJ_NODATA, OBJ_UNLINK, S_OR, session, stasis_app_event_allowed(), stasis_app_get_debug_by_name(), and str.

Referenced by event_session_alloc().

Variable Documentation

event_session_registry

struct ao2_container* event_session_registry

static

Local registry for created event_session objects.

Definition at line 68 of file resource_events.c.

Referenced by ast_ari_websocket_events_event_websocket_dtor(), ast_ari_websocket_events_event_websocket_established(), ast_ari_websocket_events_event_websocket_init(), event_session_alloc(), and event_session_cleanup().