X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fust-app.h;h=65ed6a2551eb96c63db64c900032a8faed233da3;hb=37f3c202d364b9a78c37db821c508ef3a6b1f711;hp=164bc2c6f2c95acf59d91e2a339cd55f3b338fef;hpb=04ed9e10dfa0b3c88d4a7abe9fa59b8e03b7e49a;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/ust-app.h b/src/bin/lttng-sessiond/ust-app.h
index 164bc2c6f..65ed6a255 100644
--- a/src/bin/lttng-sessiond/ust-app.h
+++ b/src/bin/lttng-sessiond/ust-app.h
@@ -112,6 +112,23 @@ struct ust_app_event {
 	struct lttng_event_exclusion *exclusion;
 };
 
+struct ust_app_event_notifier_rule {
+	int enabled;
+	int handle;
+	struct lttng_ust_object_data *obj;
+	/* Holds a strong reference. */
+	struct lttng_event_rule *event_rule;
+	/* Unique ID returned by the tracer to identify this event notifier. */
+	uint64_t token;
+	struct lttng_ht_node_u64 node;
+	/* The event_rule object owns the filter. */
+	const struct lttng_filter_bytecode *filter;
+	/* Owned by this. */
+	struct lttng_event_exclusion *exclusion;
+	/* For delayed reclaim. */
+	struct rcu_head rcu_head;
+};
+
 struct ust_app_stream {
 	int handle;
 	char pathname[PATH_MAX];
@@ -292,6 +309,22 @@ struct ust_app {
 	 * Used for path creation
 	 */
 	time_t registration_time;
+	/*
+	 * Event notifier
+	 */
+	struct {
+		/*
+		 * Handle to the lttng_ust object representing the event
+		 * notifier group.
+		 */
+		struct lttng_ust_object_data *object;
+		struct lttng_pipe *event_pipe;
+	} event_notifier_group;
+	/*
+	 * Hashtable indexing the application's event notifier rule's
+	 * (ust_app_event_notifier_rule) by their token's value.
+	 */
+	struct lttng_ht *token_to_event_notifier_rule_ht;
 };
 
 #ifdef HAVE_LIBLTTNG_UST_CTL
@@ -319,6 +352,8 @@ int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
 		struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx);
 void ust_app_global_update(struct ltt_ust_session *usess, struct ust_app *app);
 void ust_app_global_update_all(struct ltt_ust_session *usess);
+void ust_app_global_update_event_notifier_rules(struct ust_app *app);
+void ust_app_global_update_all_event_notifier_rules(void);
 
 void ust_app_clean_list(void);
 int ust_app_ht_alloc(void);
@@ -356,6 +391,8 @@ int ust_app_release_object(struct ust_app *app,
 enum lttng_error_code ust_app_clear_session(struct ltt_session *session);
 enum lttng_error_code ust_app_open_packets(struct ltt_session *session);
 
+int ust_app_setup_event_notifier_group(struct ust_app *app);
+
 static inline
 int ust_app_supported(void)
 {
@@ -444,6 +481,17 @@ static inline
 void ust_app_global_update(struct ltt_ust_session *usess, struct ust_app *app)
 {}
 static inline
+void ust_app_global_update_event_notifier_rules(struct ust_app *app)
+{}
+static inline
+void ust_app_global_update_all_event_notifier_rules(void)
+{}
+static inline
+int ust_app_setup_event_notifier_group(struct ust_app *app)
+{
+	return 0;
+}
+static inline
 int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
 		struct ltt_ust_channel *uchan)
 {