X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=include%2Fafb%2Fafb-event-itf.h;h=5f7b8370cd6d94fd1a1b8d493ed0dd66dcceb180;hb=399d235e33b55922f15570f0ee0076529c518efc;hp=47ffa387b96519ea35fe9f721f267ef7e50e9a46;hpb=7e0abe76db7b90369429bf387d7aad0fb5a42328;p=src%2Fapp-framework-binder.git

diff --git a/include/afb/afb-event-itf.h b/include/afb/afb-event-itf.h
index 47ffa387..5f7b8370 100644
--- a/include/afb/afb-event-itf.h
+++ b/include/afb/afb-event-itf.h
@@ -25,7 +25,7 @@ struct json_object;
  * It records the functions to be called for the request.
  * Don't use this structure directly.
  * Use the helper functions documented below.
- */ 
+ */
 struct afb_event_itf {
 	/* CAUTION: respect the order, add at the end */
 
@@ -35,18 +35,28 @@ struct afb_event_itf {
 };
 
 /*
- * Describes the request by plugins from afb-daemon
+ * Describes the request of afb-daemon for bindings
  */
 struct afb_event {
 	const struct afb_event_itf *itf;	/* the interface to use */
 	void *closure;				/* the closure argument for functions of 'itf' */
 };
 
+/*
+ * Checks wether the 'event' is valid or not.
+ *
+ * Returns 0 if not valid or 1 if valid.
+ */
+static inline int afb_event_is_valid(struct afb_event event)
+{
+	return event.itf != NULL;
+}
+
 /*
  * Broadcasts widely the 'event' with the data 'object'.
  * 'object' can be NULL.
  *
- * For conveniency, the function calls 'json_object_put' for 'object'.
+ * 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.
  *
@@ -58,10 +68,10 @@ static inline int afb_event_broadcast(struct afb_event event, struct json_object
 }
 
 /*
- * Pushes the 'event' with the data 'object' to its obeservers.
+ * Pushes the 'event' with the data 'object' to its observers.
  * 'object' can be NULL.
  *
- * For conveniency, the function calls 'json_object_put' for 'object'.
+ * 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.
  *