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authorJosé Bollo <jose.bollo@iot.bzh>2018-04-09 18:16:07 +0200
committerJosé Bollo <jose.bollo@iot.bzh>2018-06-15 17:57:36 +0200
commit4521c1e7ae5371ab9d639adc617d17fb4e8ded0c (patch)
treea8a1416a2d58c16ab3993c7e4dc405fc71daab6a /include/afb/afb-event-x2.h
parent63682b4da9d3e892d1d0a671de860adc43068142 (diff)
api-v3: First draft
This commit introduces the bindings v3 API for bindings. The documentation has still to be improved and will come very soon. Change-Id: I8f9007370e29f671fdfd1da87fff7372a17db7af Signed-off-by: José Bollo <jose.bollo@iot.bzh>
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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"
+
+/**
+ * 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 the count of clients that received the event.
+ */
+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 the count of clients that received the event.
+ */
+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);
+}
+