Fix: add missing VALGRIND ifdef checks and documentation

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

diff --git a/src/bin/lttng-sessiond/kernel-consumer.c b/src/bin/lttng-sessiond/kernel-consumer.c
index 70759fb36d90149d8964967d3b20608c60bcc9ff..4153612746f90c84780b208b94ce2ce731126217 100644 (file)
--- a/src/bin/lttng-sessiond/kernel-consumer.c
+++ b/src/bin/lttng-sessiond/kernel-consumer.c
@@ -262,6 +262,40 @@ error:
        return ret;
 }
 
+/*
+ * Sending the notification that all streams were sent with STREAMS_SENT.
+ */
+int kernel_consumer_streams_sent(struct consumer_socket *sock,
+               struct ltt_kernel_session *session, uint64_t channel_key)
+{
+       int ret;
+       struct lttcomm_consumer_msg lkm;
+       struct consumer_output *consumer;
+
+       assert(sock);
+       assert(session);
+
+       DBG("Sending streams_sent");
+       /* Get consumer output pointer */
+       consumer = session->consumer;
+
+       /* Prep stream consumer message */
+       consumer_init_streams_sent_comm_msg(&lkm,
+                       LTTNG_CONSUMER_STREAMS_SENT,
+                       channel_key, consumer->net_seq_index);
+
+       health_code_update();
+
+       /* Send stream and file descriptor */
+       ret = consumer_send_msg(sock, &lkm);
+       if (ret < 0) {
+               goto error;
+       }
+
+error:
+       return ret;
+}
+
 /*
  * Send all stream fds of kernel channel to the consumer.
  */
@@ -354,6 +388,16 @@ int kernel_consumer_send_session(struct consumer_socket *sock,
                if (ret < 0) {
                        goto error;
                }
+               if (monitor) {
+                       /*
+                        * Inform the relay that all the streams for the
+                        * channel were sent.
+                        */
+                       ret = kernel_consumer_streams_sent(sock, session, chan->fd);
+                       if (ret < 0) {
+                               goto error;
+                       }
+               }
        }
 
        DBG("Kernel consumer FDs of metadata and channel streams sent");