relayd: implement file and session rotation on top of trace chunks

[lttng-tools.git] / src / bin / lttng-relayd / index.c

diff --git a/src/bin/lttng-relayd/index.c b/src/bin/lttng-relayd/index.c
index 92d4581d124a95921694129cba29213c08a7bd90..3cae94e8e57525d37cdddcd3526c010c6105d5cd 100644 (file)
--- a/src/bin/lttng-relayd/index.c
+++ b/src/bin/lttng-relayd/index.c
@@ -27,6 +27,7 @@
 #include "lttng-relayd.h"
 #include "stream.h"
 #include "index.h"
+#include "connection.h"
 
 /*
  * Allocate a new relay index object. Pass the stream in which it is
@@ -411,3 +412,28 @@ end:
        rcu_read_unlock();
        return ret;
 }
+
+/*
+ * Set index data from the control port to a given index object.
+ */
+int relay_index_set_control_data(struct relay_index *index,
+               const struct lttcomm_relayd_index *data,
+               unsigned int minor_version)
+{
+       /* The index on disk is encoded in big endian. */
+       const struct ctf_packet_index index_data = {
+               .packet_size = htobe64(data->packet_size),
+               .content_size = htobe64(data->content_size),
+               .timestamp_begin = htobe64(data->timestamp_begin),
+               .timestamp_end = htobe64(data->timestamp_end),
+               .events_discarded = htobe64(data->events_discarded),
+               .stream_id = htobe64(data->stream_id),
+       };
+
+       if (minor_version >= 8) {
+               index->index_data.stream_instance_id = htobe64(data->stream_instance_id);
+               index->index_data.packet_seq_num = htobe64(data->packet_seq_num);
+       }
+
+       return relay_index_set_data(index, &index_data);
+}