consumerd: tag metadata channel as being part of a live session

[lttng-tools.git] / src / bin / lttng-sessiond / consumer.c

diff --git a/src/bin/lttng-sessiond/consumer.c b/src/bin/lttng-sessiond/consumer.c
index 2e31279247ddf84335bc1a2391bf47a29732f612..d282f59c9266e1b22fc0aa581576c8e30d3fd32d 100644 (file)
--- a/src/bin/lttng-sessiond/consumer.c
+++ b/src/bin/lttng-sessiond/consumer.c
@@ -1,19 +1,9 @@
 /*
- * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com>
- *               2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2018 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.
  */
 
 #define _LGPL_SOURCE
@@ -923,6 +913,7 @@ void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg,
                unsigned int switch_timer_interval,
                unsigned int read_timer_interval,
                unsigned int live_timer_interval,
+               bool is_in_live_session,
                unsigned int monitor_timer_interval,
                int output,
                int type,
@@ -969,6 +960,7 @@ void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg,
        msg->u.ask_channel.switch_timer_interval = switch_timer_interval;
        msg->u.ask_channel.read_timer_interval = read_timer_interval;
        msg->u.ask_channel.live_timer_interval = live_timer_interval;
+       msg->u.ask_channel.is_live = is_in_live_session;
        msg->u.ask_channel.monitor_timer_interval = monitor_timer_interval;
        msg->u.ask_channel.output = output;
        msg->u.ask_channel.type = type;
@@ -1024,6 +1016,7 @@ void consumer_init_add_channel_comm_msg(struct lttcomm_consumer_msg *msg,
                uint64_t tracefile_count,
                unsigned int monitor,
                unsigned int live_timer_interval,
+               bool is_in_live_session,
                unsigned int monitor_timer_interval,
                struct lttng_trace_chunk *trace_chunk)
 {
@@ -1053,6 +1046,7 @@ void consumer_init_add_channel_comm_msg(struct lttcomm_consumer_msg *msg,
        msg->u.channel.tracefile_count = tracefile_count;
        msg->u.channel.monitor = monitor;
        msg->u.channel.live_timer_interval = live_timer_interval;
+       msg->u.channel.is_live = is_in_live_session;
        msg->u.channel.monitor_timer_interval = monitor_timer_interval;
 
        strncpy(msg->u.channel.pathname, pathname,
@@ -1727,6 +1721,34 @@ error:
        return ret;
 }
 
+int consumer_clear_channel(struct consumer_socket *socket, uint64_t key)
+{
+       int ret;
+       struct lttcomm_consumer_msg msg;
+
+       assert(socket);
+
+       DBG("Consumer clear channel %" PRIu64, key);
+
+       memset(&msg, 0, sizeof(msg));
+       msg.cmd_type = LTTNG_CONSUMER_CLEAR_CHANNEL;
+       msg.u.clear_channel.key = key;
+
+       health_code_update();
+
+       pthread_mutex_lock(socket->lock);
+       ret = consumer_send_msg(socket, &msg);
+       if (ret < 0) {
+               goto error_socket;
+       }
+
+error_socket:
+       pthread_mutex_unlock(socket->lock);
+
+       health_code_update();
+       return ret;
+}
+
 int consumer_init(struct consumer_socket *socket,
                const lttng_uuid sessiond_uuid)
 {
@@ -1774,6 +1796,7 @@ int consumer_create_trace_chunk(struct consumer_socket *socket,
        char creation_timestamp_buffer[ISO8601_STR_LEN];
        const char *creation_timestamp_str = "(none)";
        const bool chunk_has_local_output = relayd_id == -1ULL;
+       enum lttng_trace_chunk_status tc_status;
        struct lttcomm_consumer_msg msg = {
                .cmd_type = LTTNG_CONSUMER_CREATE_TRACE_CHUNK,
                .u.create_trace_chunk.session_id = session_id,
@@ -1851,12 +1874,9 @@ int consumer_create_trace_chunk(struct consumer_socket *socket,
                        ret = -LTTNG_ERR_FATAL;
                        goto error;
                }
-               ret = lttng_directory_handle_create_subdirectory_as_user(
-                               chunk_directory_handle,
-                               domain_subdir,
-                               S_IRWXU | S_IRWXG,
-                               &chunk_credentials);
-               if (ret) {
+               tc_status = lttng_trace_chunk_create_subdirectory(
+                               chunk, domain_subdir);
+               if (tc_status != LTTNG_TRACE_CHUNK_STATUS_OK) {
                        PERROR("Failed to create chunk domain output directory \"%s\"",
                                domain_subdir);
                        ret = -LTTNG_ERR_FATAL;