X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fnotification-thread-commands.h;h=3f883bf20fbda7129eedac4d16516a8c3c2f8d2b;hp=c09ebea46f0c72a0e0acc1e42da590dd3b096423;hb=fbc9f37df245d544a7705ba576297df791220b44;hpb=f8522f5cc357c0d80257d5ace1cd556a88305c0c

diff --git a/src/bin/lttng-sessiond/notification-thread-commands.h b/src/bin/lttng-sessiond/notification-thread-commands.h
index c09ebea46..3f883bf20 100644
--- a/src/bin/lttng-sessiond/notification-thread-commands.h
+++ b/src/bin/lttng-sessiond/notification-thread-commands.h
@@ -27,6 +27,7 @@ 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_LIST_TRIGGERS,
 	NOTIFICATION_COMMAND_TYPE_QUIT,
 	NOTIFICATION_COMMAND_TYPE_CLIENT_COMMUNICATION_UPDATE,
 };
@@ -64,6 +65,11 @@ struct notification_thread_command {
 			uint64_t trace_archive_chunk_id;
 			struct lttng_trace_archive_location *location;
 		} session_rotation;
+		/* List triggers. */
+		struct {
+			/* Credentials of the requesting user. */
+			uid_t uid;
+		} list_triggers;
 		/* Client communication update. */
 		struct {
 			notification_client_id id;
@@ -72,6 +78,11 @@ struct notification_thread_command {
 
 	} parameters;
 
+	union {
+		struct {
+			struct lttng_triggers *triggers;
+		} list_triggers;
+	} reply;
 	/* lttng_waiter on which to wait for command reply (optional). */
 	struct lttng_waiter reply_waiter;
 	enum lttng_error_code reply_code;
@@ -108,6 +119,24 @@ 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);
+
 void notification_thread_command_quit(
 		struct notification_thread_handle *handle);