Implement capturing payload on event notifiers

[deliverable/lttng-ust.git] / liblttng-ust / ust-events-internal.h

diff --git a/liblttng-ust/ust-events-internal.h b/liblttng-ust/ust-events-internal.h
index 0fc0b795de3e08179e98ada090ad963e0e1d6313..966fce6e7e120088c14327880584c9b8b30492e5 100644 (file)
--- a/liblttng-ust/ust-events-internal.h
+++ b/liblttng-ust/ust-events-internal.h
@@ -46,13 +46,16 @@ struct lttng_event_enabler {
 
 struct lttng_event_notifier_enabler {
        struct lttng_enabler base;
-       struct cds_list_head node;      /* per-app list of event notifier enablers */
+       struct cds_list_head node;      /* per-app list of event_notifier enablers */
+       struct cds_list_head capture_bytecode_head;
        struct lttng_event_notifier_group *group; /* weak ref */
        uint64_t user_token;            /* User-provided token */
+       uint64_t num_captures;
 };
 
 enum lttng_ust_bytecode_node_type {
        LTTNG_UST_BYTECODE_NODE_TYPE_FILTER,
+       LTTNG_UST_BYTECODE_NODE_TYPE_CAPTURE,
 };
 
 struct lttng_ust_bytecode_node {
@@ -150,10 +153,11 @@ int lttng_event_enabler_attach_exclusion(struct lttng_event_enabler *enabler,
                struct lttng_ust_excluder_node *excluder);
 
 /*
- * Synchronize bytecodes for the enabler and the instance (event or trigger).
+ * Synchronize bytecodes for the enabler and the instance (event or
+ * event_notifier).
  *
  * This function goes over all bytecode programs of the enabler (event or
- * trigger enabler) to ensure each is linked to the provided instance.
+ * event_notifier enabler) to ensure each is linked to the provided instance.
  */
 LTTNG_HIDDEN
 void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
@@ -221,6 +225,15 @@ int lttng_event_notifier_enabler_attach_filter_bytecode(
                struct lttng_event_notifier_enabler *event_notifier_enabler,
                struct lttng_ust_bytecode_node *bytecode);
 
+/*
+ * Attach capture bytecode program to `struct lttng_event_notifier_enabler` and
+ * all event_notifiers related to this enabler.
+ */
+LTTNG_HIDDEN
+int lttng_event_notifier_enabler_attach_capture_bytecode(
+               struct lttng_event_notifier_enabler *event_notifier_enabler,
+               struct lttng_ust_bytecode_node *bytecode);
+
 /*
  * Attach exclusion list to `struct lttng_event_notifier_enabler` and all
  * event notifiers related to this enabler.