Tracer test event registration notification

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/src/tracer.c b/src/tracer.c
index e8292079e7868d754f32b0423171185beed90012..312d561cdcae4543a61b41e430c3791c20440099 100644 (file)
--- a/src/tracer.c
+++ b/src/tracer.c
@@ -11,6 +11,8 @@
 
 #include <side/trace.h>
 
+static struct side_tracer_handle *tracer_handle;
+
 static
 void tracer_print_struct(const struct side_type_description *type_desc, const struct side_arg_vec_description *sav_desc);
 static
@@ -1171,3 +1173,41 @@ void tracer_call_variadic(const struct side_event_description *desc,
                printf(" ]");
        printf("\n");
 }
+
+void tracer_event_notification(enum side_tracer_notification notif,
+               struct side_event_description **events, uint32_t nr_events, void *priv)
+{
+       uint32_t i;
+
+       printf("----------------------------------------------------------\n");
+       printf("Tracer notified of events %s\n",
+               SIDE_TRACER_NOTIFICATION_INSERT_EVENTS ? "inserted" : "removed");
+       for (i = 0; i < nr_events; i++) {
+               struct side_event_description *event = events[i];
+
+               /* Skip NULL pointers */
+               if (!event)
+                       continue;
+               printf("provider: %s, event: %s\n",
+                       event->provider_name, event->event_name);
+       }
+       printf("----------------------------------------------------------\n");
+}
+
+static __attribute__((constructor))
+void tracer_init(void);
+static
+void tracer_init(void)
+{
+       tracer_handle = side_tracer_event_notification_register(tracer_event_notification, NULL);
+       if (!tracer_handle)
+               abort();
+}
+
+static __attribute__((destructor))
+void tracer_exit(void);
+static
+void tracer_exit(void)
+{
+       side_tracer_event_notification_unregister(tracer_handle);
+}