Tag broadcasted events with UUID and hop

When API have mutual dependencies, leading to
loops in dependecies, broadcasting an event
never ends because of the loop (see SPEC-2625).

To avoid that weird flood of events, a unic
identifier (UUID) is attached to broadcasted
event and a tiny memory records previously
broadcasted events to avoid re-sending an
already sent event.

The size of the memory can be set using the
macro variable EVENT_BROADCAST_MEMORY_COUNT
whose default value is 8. It can be reduced
to 0.

An other mecanism is added to limit the count
of hops that a broadcasted event can do. That
count can be set using the macro variable
EVENT_BROADCAST_HOP_MAX whose default value
is 10.

Bug-AGL: SPEC-2625

Change-Id: I29550a8a5c8f5e2ffb20edc3330357a1e870c0e2
Signed-off-by: José Bollo <jose.bollo@iot.bzh>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/afb-export.c b/src/afb-export.c
index 4fbb1318..38ef4021 100644
--- a/src/afb-export.c
+++ b/src/afb-export.c
@@ -1255,7 +1255,7 @@ static void listener_of_pushed_events(void *closure, const char *event, int even
 	listener_of_events(closure, event, eventid, object);
 }
 
-static void listener_of_broadcasted_events(void *closure, const char *event, struct json_object *object)
+static void listener_of_broadcasted_events(void *closure, const char *event, struct json_object *object, const uuid_binary_t uuid, uint8_t hop)
 {
 	listener_of_events(closure, event, 0, object);
 }