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/*
* Copyright (C) 2016, 2017, 2018 "IoT.bzh"
* Author: José Bollo <jose.bollo@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include "afb-event-x2-itf.h"
/** @defgroup AFB_EVENT
* @{ */
/**
* Checks whether the 'event' is valid or not.
*
* @param event the event to check
*
* @return 0 if not valid or 1 if valid.
*/
static inline int afb_event_x2_is_valid(struct afb_event_x2 *event)
{
return !!event;
}
/**
* Broadcasts widely an event of 'event' with the data 'object'.
* 'object' can be NULL.
*
* For convenience, the function calls 'json_object_put' for 'object'.
* Thus, in the case where 'object' should remain available after
* the function returns, the function 'json_object_get' shall be used.
*
* @param event the event to broadcast
* @param object the companion object to associate to the broadcasted event (can be NULL)
*
* @return 0 in case of success or -1 in case of error
*/
static inline int afb_event_x2_broadcast(
struct afb_event_x2 *event,
struct json_object *object)
{
return event->itf->broadcast(event, object);
}
/**
* Pushes an event of 'event' with the data 'object' to its observers.
* 'object' can be NULL.
*
* For convenience, the function calls 'json_object_put' for 'object'.
* Thus, in the case where 'object' should remain available after
* the function returns, the function 'json_object_get' shall be used.
*
* @param event the event to push
* @param object the companion object to associate to the pushed event (can be NULL)
*
* @Return
* * 1 if at least one client listen for the event
* * 0 if no more client listen for the event
* * -1 in case of error (the event can't be delivered)
*/
static inline int afb_event_x2_push(
struct afb_event_x2 *event,
struct json_object *object)
{
return event->itf->push(event, object);
}
/**
* Gets the name associated to 'event'.
*
* @param event the event whose name is requested
*
* @return the name of the event
*
* The returned name can be used until call to 'afb_event_x2_unref'.
* It shouldn't be freed.
*/
static inline const char *afb_event_x2_name(struct afb_event_x2 *event)
{
return event->itf->name(event);
}
/**
* Decrease the count of references to 'event'.
* Call this function when the evenid is no more used.
* It destroys the event_x2 when the reference count falls to zero.
*
* @param event the event
*/
static inline void afb_event_x2_unref(struct afb_event_x2 *event)
{
event->itf->unref(event);
}
/**
* Increases the count of references to 'event'
*
* @param event the event
*
* @return the event
*/
static inline struct afb_event_x2 *afb_event_x2_addref(
struct afb_event_x2 *event)
{
return event->itf->addref(event);
}
/** @} */
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