Fix: skip uid registry when metadata key is 0

A value of zero for the metadata key indicate that metadata was never
created/pushed to the consumer.

This can occur in scenario were a tracker is present since metadata
might never be created/pushed.

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/src/bin/lttng-sessiond/ust-app.c b/src/bin/lttng-sessiond/ust-app.c
index 5cf90493947f4de46d9a4738e6cf640ba98fedcf..52d1da787f8142cd7cf92bab17acd9d3eda11235 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.c
+++ b/src/bin/lttng-sessiond/ust-app.c
@@ -5975,6 +5975,11 @@ int ust_app_snapshot_record(struct ltt_ust_session *usess,
                        struct buffer_reg_channel *reg_chan;
                        struct consumer_socket *socket;
 
                        struct buffer_reg_channel *reg_chan;
                        struct consumer_socket *socket;
 

+                       if (!reg->registry->reg.ust->metadata_key) {
+                               /* Skip since no metadata is present */
+                               continue;
+                       }
+

                        /* Get consumer socket to use to push the metadata.*/
                        socket = consumer_find_socket_by_bitness(reg->bits_per_long,
                                        usess->consumer);
                        /* Get consumer socket to use to push the metadata.*/
                        socket = consumer_find_socket_by_bitness(reg->bits_per_long,
                                        usess->consumer);