X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fnotification-thread-commands.h;h=0aa7a80c3f94cc3a8a1e519f620ac625d2b5d7b6;hb=0efb2ad7fc448283184e43d6fb0915febae45384;hp=c09ebea46f0c72a0e0acc1e42da590dd3b096423;hpb=f2b3ef9f7d7adf6cc0678cd5933b638f5a9e75a6;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/notification-thread-commands.h b/src/bin/lttng-sessiond/notification-thread-commands.h
index c09ebea46..0aa7a80c3 100644
--- a/src/bin/lttng-sessiond/notification-thread-commands.h
+++ b/src/bin/lttng-sessiond/notification-thread-commands.h
@@ -27,8 +27,12 @@ enum notification_thread_command_type {
 	NOTIFICATION_COMMAND_TYPE_REMOVE_CHANNEL,
 	NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_ONGOING,
 	NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_COMPLETED,
+	NOTIFICATION_COMMAND_TYPE_ADD_TRACER_EVENT_SOURCE,
+	NOTIFICATION_COMMAND_TYPE_REMOVE_TRACER_EVENT_SOURCE,
+	NOTIFICATION_COMMAND_TYPE_LIST_TRIGGERS,
 	NOTIFICATION_COMMAND_TYPE_QUIT,
 	NOTIFICATION_COMMAND_TYPE_CLIENT_COMMUNICATION_UPDATE,
+	NOTIFICATION_COMMAND_TYPE_GET_TRIGGER,
 };
 
 struct notification_thread_command {
@@ -36,8 +40,15 @@ struct notification_thread_command {
 
 	enum notification_thread_command_type type;
 	union {
-		/* Register/Unregister trigger. */
-		struct lttng_trigger *trigger;
+		/* Register trigger. */
+		struct {
+			struct lttng_trigger *trigger;
+			bool is_trigger_anonymous;
+		} register_trigger;
+		/* Unregister trigger. */
+		struct {
+			const struct lttng_trigger *trigger;
+		} unregister_trigger;
 		/* Add channel. */
 		struct {
 			struct {
@@ -64,14 +75,36 @@ struct notification_thread_command {
 			uint64_t trace_archive_chunk_id;
 			struct lttng_trace_archive_location *location;
 		} session_rotation;
+		/* Add/Remove tracer event source fd. */
+		struct {
+			int tracer_event_source_fd;
+			enum lttng_domain_type domain;
+		} tracer_event_source;
+		/* List triggers. */
+		struct {
+			/* Credentials of the requesting user. */
+			uid_t uid;
+		} list_triggers;
 		/* Client communication update. */
 		struct {
 			notification_client_id id;
 			enum client_transmission_status status;
 		} client_communication_update;
 
+		struct {
+			const struct lttng_trigger *trigger;
+		} get_trigger;
+
 	} parameters;
 
+	union {
+		struct {
+			struct lttng_triggers *triggers;
+		} list_triggers;
+		struct {
+			struct lttng_trigger *trigger;
+		} get_trigger;
+	} reply;
 	/* lttng_waiter on which to wait for command reply (optional). */
 	struct lttng_waiter reply_waiter;
 	enum lttng_error_code reply_code;
@@ -80,11 +113,12 @@ struct notification_thread_command {
 
 enum lttng_error_code notification_thread_command_register_trigger(
 		struct notification_thread_handle *handle,
-		struct lttng_trigger *trigger);
+		struct lttng_trigger *trigger,
+		bool is_anonymous_trigger);
 
 enum lttng_error_code notification_thread_command_unregister_trigger(
 		struct notification_thread_handle *handle,
-		struct lttng_trigger *trigger);
+		const struct lttng_trigger *trigger);
 
 enum lttng_error_code notification_thread_command_add_channel(
 		struct notification_thread_handle *handle,
@@ -108,7 +142,43 @@ enum lttng_error_code notification_thread_command_session_rotation_completed(
 		uint64_t trace_archive_chunk_id,
 		struct lttng_trace_archive_location *location);
 
+/*
+ * Return the set of triggers visible to a given client.
+ *
+ * The trigger objects contained in the set are the actual trigger instances
+ * used by the notification subsystem (i.e. not a copy). Given that the command
+ * is only used to serialize the triggers, this is fine: the properties that
+ * are serialized are immutable over the lifetime of the triggers.
+ *
+ * Moreover, the lifetime of the trigger instances is protected through
+ * reference counting (references are held by the trigger set).
+ *
+ * The caller has the exclusive ownership of the returned trigger set.
+ */
+enum lttng_error_code notification_thread_command_list_triggers(
+		struct notification_thread_handle *handle,
+		uid_t client_uid,
+		struct lttng_triggers **triggers);
+
+/*
+ * The ownership of trigger_event_application_pipe is _not_ transferred to
+ * the notification thread.
+ */
+enum lttng_error_code notification_thread_command_add_tracer_event_source(
+		struct notification_thread_handle *handle,
+		int tracer_event_source_fd,
+		enum lttng_domain_type domain);
+
+enum lttng_error_code notification_thread_command_remove_tracer_event_source(
+		struct notification_thread_handle *handle,
+		int tracer_event_source_fd);
+
 void notification_thread_command_quit(
 		struct notification_thread_handle *handle);
 
+enum lttng_error_code notification_thread_command_get_trigger(
+		struct notification_thread_handle *handle,
+		const struct lttng_trigger *trigger,
+		struct lttng_trigger **real_trigger);
+
 #endif /* NOTIFICATION_THREAD_COMMANDS_H */