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=b8cb2779ffc97ec6f51d32cd80dbc3102feb262f;hb=fbc9f37df245d544a7705ba576297df791220b44;hpb=731c1b1217bdbb47501426a6a0a2220ce4bc442c

diff --git a/src/bin/lttng-sessiond/notification-thread-commands.h b/src/bin/lttng-sessiond/notification-thread-commands.h
index b8cb2779f..3f883bf20 100644
--- a/src/bin/lttng-sessiond/notification-thread-commands.h
+++ b/src/bin/lttng-sessiond/notification-thread-commands.h
@@ -1,18 +1,8 @@
 /*
- * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef NOTIFICATION_THREAD_COMMANDS_H
@@ -25,6 +15,7 @@
 #include "notification-thread-internal.h"
 #include "notification-thread-events.h"
 #include <common/waiter.h>
+#include <stdbool.h>
 
 struct notification_thread_data;
 struct lttng_trigger;
@@ -36,7 +27,9 @@ 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,
 };
 
 struct notification_thread_command {
@@ -72,11 +65,28 @@ 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;
+			enum client_transmission_status status;
+		} client_communication_update;
+
 	} 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;
+	bool is_async;
 };
 
 enum lttng_error_code notification_thread_command_register_trigger(
@@ -109,6 +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);