SoW-2019-0002: Dynamic Snapshot

[lttng-tools.git] / src / common / sessiond-comm / sessiond-comm.h

diff --git a/src/common/sessiond-comm/sessiond-comm.h b/src/common/sessiond-comm/sessiond-comm.h
index 8b1757438de448096337b7ae820513e59ae23891..735fa023c5470ce7e349985e4ba9491983ef79bb 100644 (file)
--- a/src/common/sessiond-comm/sessiond-comm.h
+++ b/src/common/sessiond-comm/sessiond-comm.h
@@ -1,20 +1,10 @@
 /*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- *                      Julien Desfossez <julien.desfossez@polymtl.ca>
- *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@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.
  */
 
 /*
@@ -95,9 +85,9 @@ enum lttcomm_sessiond_command {
        /* 29 */
        /* 30 */
        LTTNG_SAVE_SESSION                    = 31,
-       LTTNG_TRACK_PID                       = 32,
-       LTTNG_UNTRACK_PID                     = 33,
-       LTTNG_LIST_TRACKER_PIDS               = 34,
+       LTTNG_TRACK_ID                       = 32,
+       LTTNG_UNTRACK_ID                     = 33,
+       LTTNG_LIST_TRACKER_IDS               = 34,
        LTTNG_SET_SESSION_SHM_PATH            = 40,
        LTTNG_REGENERATE_METADATA             = 41,
        LTTNG_REGENERATE_STATEDUMP            = 42,
@@ -109,6 +99,7 @@ enum lttcomm_sessiond_command {
        LTTNG_SESSION_LIST_ROTATION_SCHEDULES = 48,
        LTTNG_CREATE_SESSION_EXT              = 49,
        LTTNG_CLEAR_SESSION                   = 50,
+       LTTNG_LIST_TRIGGERS                   = 51,
 };
 
 enum lttcomm_relayd_command {
@@ -354,8 +345,21 @@ struct lttcomm_session_msg {
                        char shm_path[PATH_MAX];
                } LTTNG_PACKED set_shm_path;
                struct {
-                       uint32_t pid;
-               } LTTNG_PACKED pid_tracker;
+                       uint32_t tracker_type; /* enum lttng_tracker_type */
+                       uint32_t id_type; /* enum lttng_tracker_id_type */
+                       union {
+                               int32_t value;
+                               uint32_t var_len;
+                       } u;
+                       /*
+                        * for LTTNG_ID_STRING, followed by a variable length
+                        * zero-terminated string of length "var_len", which
+                        * includes the final \0.
+                        */
+               } LTTNG_PACKED id_tracker;
+               struct {
+                       uint32_t tracker_type; /* enum lttng_tracker_type */
+               } LTTNG_PACKED id_tracker_list;
                struct {
                        uint32_t length;
                } LTTNG_PACKED trigger;
@@ -459,6 +463,21 @@ struct lttcomm_session_destroy_command_header {
        int32_t rotation_state;
 };
 
+/*
+ * tracker command header.
+ */
+struct lttcomm_tracker_command_header {
+       uint32_t nb_tracker_id;
+} LTTNG_PACKED;
+
+struct lttcomm_tracker_id_header {
+       uint32_t type; /* enum lttng_tracker_id_type */
+       union {
+               int32_t value;
+               uint32_t var_data_len;
+       } u;
+} LTTNG_PACKED;
+
 /*
  * Data structure for the response from sessiond to the lttng client.
  */