Docs: sessiond: document the role of an application's two sockets

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: I355588af1b3408c8c209aae09c2897640d4ca5b4

diff --git a/src/bin/lttng-sessiond/ust-app.hpp b/src/bin/lttng-sessiond/ust-app.hpp
index 2aa79df444c0229c003afe8b02f1801fb30bb5e0..3200b654986596fb2eda518f96da35e2bccb097e 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.hpp
+++ b/src/bin/lttng-sessiond/ust-app.hpp
@@ -249,9 +249,11 @@ struct ust_app_session {
  * and a linked list is kept of all running traceable app.
  */
 struct ust_app {
+       /* Traffic initiated from the session daemon to the application. */
        int sock;
        pthread_mutex_t sock_lock;      /* Protects sock protocol. */
 
+       /* Traffic initiated from the application to the session daemon. */
        int notify_sock;
        pid_t pid;
        pid_t ppid;