registry = get_session_registry(ua_chan->session);
if (registry) {
ust_registry_channel_del_free(registry, ua_chan->key,
- true);
+ sock >= 0);
+ }
+ if (sock >= 0) {
+ save_per_pid_lost_discarded_counters(ua_chan);
}
- save_per_pid_lost_discarded_counters(ua_chan);
}
if (ua_chan->obj != NULL) {
if (ret < 0) {
ERR("Error creating UST channel \"%s\" on the consumer daemon",
ua_chan->name);
- goto error;
+ goto error_remove_from_registry;
}
ret = send_channel_pid_to_ust(app, ua_sess, ua_chan);
if (ret != -ENOTCONN) {
ERR("Error sending channel to application");
}
- goto error;
+ goto error_remove_from_registry;
}
chan_reg_key = ua_chan->key;
if (cmd_ret != LTTNG_OK) {
ret = - (int) cmd_ret;
ERR("Failed to add channel to notification thread");
- goto error;
+ goto error_remove_from_registry;
}
+error_remove_from_registry:
+ if (ret) {
+ ust_registry_channel_del_free(registry, ua_chan->key, false);
+ }
error:
rcu_read_unlock();
return ret;
nb_packets_per_stream,
trace_archive_id);
if (ret < 0) {
+ if (ret == -LTTNG_ERR_CHAN_NOT_FOUND) {
+ continue;
+ }
goto error;
}
}
registry = get_session_registry(ua_sess);
if (!registry) {
- DBG("Application session is being torn down. Abort snapshot record.");
- ret = -1;
- goto error;
+ DBG("Application session is being torn down. Skip application.");
+ continue;
}
ret = consumer_snapshot_channel(socket,
registry->metadata_key, output,
pathname, wait, 0,
trace_archive_id);
if (ret < 0) {
+ if (ret == -LTTNG_ERR_CHAN_NOT_FOUND) {
+ continue;
+ }
goto error;
}
}
/*
* Rotate all the channels of a session.
*
- * Return 0 on success or else a negative value.
+ * Return LTTNG_OK on success or else an LTTng error code.
*/
-int ust_app_rotate_session(struct ltt_session *session)
+enum lttng_error_code ust_app_rotate_session(struct ltt_session *session)
{
- int ret = 0;
+ int ret;
+ enum lttng_error_code cmd_ret = LTTNG_OK;
struct lttng_ht_iter iter;
struct ust_app *app;
struct ltt_ust_session *usess = session->ust_session;
socket = consumer_find_socket_by_bitness(reg->bits_per_long,
usess->consumer);
if (!socket) {
- ret = -EINVAL;
+ cmd_ret = LTTNG_ERR_INVALID;
goto error;
}
reg->uid, reg->bits_per_long);
if (ret < 0 || ret == sizeof(pathname)) {
PERROR("Failed to format rotation path");
+ cmd_ret = LTTNG_ERR_INVALID;
goto error;
}
/* is_metadata_channel */ false,
session->current_archive_id);
if (ret < 0) {
+ cmd_ret = LTTNG_ERR_ROTATION_FAIL_CONSUMER;
goto error;
}
}
/* is_metadata_channel */ true,
session->current_archive_id);
if (ret < 0) {
+ cmd_ret = LTTNG_ERR_ROTATION_FAIL_CONSUMER;
goto error;
}
}
ua_sess->path);
if (ret < 0 || ret == sizeof(pathname)) {
PERROR("Failed to format rotation path");
+ cmd_ret = LTTNG_ERR_INVALID;
goto error;
}
socket = consumer_find_socket_by_bitness(app->bits_per_long,
usess->consumer);
if (!socket) {
- ret = -EINVAL;
+ cmd_ret = LTTNG_ERR_INVALID;
goto error;
}
registry = get_session_registry(ua_sess);
if (!registry) {
- DBG("Application session is being torn down. Abort session rotation.");
- ret = -1;
- goto error;
+ DBG("Application session is being torn down. Skip application.");
+ continue;
}
/* is_metadata_channel */ false,
session->current_archive_id);
if (ret < 0) {
+ /* Per-PID buffer and application going away. */
+ if (ret == -LTTNG_ERR_CHAN_NOT_FOUND)
+ continue;
+ cmd_ret = LTTNG_ERR_ROTATION_FAIL_CONSUMER;
goto error;
}
}
/* is_metadata_channel */ true,
session->current_archive_id);
if (ret < 0) {
+ /* Per-PID buffer and application going away. */
+ if (ret == -LTTNG_ERR_CHAN_NOT_FOUND)
+ continue;
+ cmd_ret = LTTNG_ERR_ROTATION_FAIL_CONSUMER;
goto error;
}
}
break;
}
- ret = LTTNG_OK;
+ cmd_ret = LTTNG_OK;
error:
rcu_read_unlock();
- return ret;
+ return cmd_ret;
}