Lazy provider registration

[lttng-ust.git] / include / lttng / ust-events.h

diff --git a/include/lttng/ust-events.h b/include/lttng/ust-events.h
index e755e0c67a8aa45ce879856bce18f13782e08de6..c87a82c00a87277ec0b1144c31104ed385c96835 100644 (file)
--- a/include/lttng/ust-events.h
+++ b/include/lttng/ust-events.h
@@ -241,12 +241,14 @@ struct lttng_event_desc {
        } u;
 };
 
-#define LTTNG_UST_PROBE_DESC_PADDING   40
+#define LTTNG_UST_PROBE_DESC_PADDING   20
 struct lttng_probe_desc {
        const char *provider;
        const struct lttng_event_desc **event_desc;
        unsigned int nr_events;
        struct cds_list_head head;              /* chain registered probes */
+       struct cds_list_head lazy_init_head;
+       int lazy;                               /* lazy registration */
        char padding[LTTNG_UST_PROBE_DESC_PADDING];
 };
 
@@ -544,5 +546,6 @@ void lttng_free_event_filter_runtime(struct lttng_event *event);
 void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime);
 
 struct cds_list_head *lttng_get_probe_list_head(void);
+int lttng_session_active(void);
 
 #endif /* _LTTNG_UST_EVENTS_H */