return ret;
}
+/*
+ * Sample consumed and produced positions for a specific fd.
+ *
+ * Returns 0 on success, < 0 on error.
+ */
+int lttng_kconsumer_sample_snapshot_positions(
+ struct lttng_consumer_stream *stream)
+{
+ assert(stream);
+
+ return kernctl_snapshot_sample_positions(stream->wait_fd);
+}
+
/*
* Get the produced position
*
ERR("sending streams sent to relayd");
goto end_unlock;
}
+ channel->streams_sent_to_relayd = true;
}
ret = kernctl_buffer_flush(stream->wait_fd);
} else {
ret = consumer_add_channel(new_channel, ctx);
}
- if (CONSUMER_CHANNEL_TYPE_DATA) {
+ if (msg.u.channel.type == CONSUMER_CHANNEL_TYPE_DATA && !ret) {
+ int monitor_start_ret;
+
+ DBG("Consumer starting monitor timer");
consumer_timer_live_start(new_channel,
msg.u.channel.live_timer_interval);
+ monitor_start_ret = consumer_timer_monitor_start(
+ new_channel,
+ msg.u.channel.monitor_timer_interval);
+ if (monitor_start_ret < 0) {
+ ERR("Starting channel monitoring timer failed");
+ goto end_nosignal;
+ }
+
}
health_code_update();
consumer_stream_free(new_stream);
goto end_nosignal;
}
+
+ /*
+ * If adding an extra stream to an already
+ * existing channel (e.g. cpu hotplug), we need
+ * to send the "streams_sent" command to relayd.
+ */
+ if (channel->streams_sent_to_relayd) {
+ ret = consumer_send_relayd_streams_sent(
+ new_stream->net_seq_idx);
+ if (ret < 0) {
+ goto end_nosignal;
+ }
+ }
}
/* Get the right pipe where the stream will be sent. */
if (ret < 0) {
goto end_nosignal;
}
+ channel->streams_sent_to_relayd = true;
}
break;
}