Fix: UST app session teardown process

[lttng-tools.git] / src / bin / lttng-sessiond / ust-app.h

diff --git a/src/bin/lttng-sessiond/ust-app.h b/src/bin/lttng-sessiond/ust-app.h
index d713f223b128ec7bd52fda53037046394885abe4..5447b7fe6d7cd13f840f12a68fe1585bc6e61159 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.h
+++ b/src/bin/lttng-sessiond/ust-app.h
@@ -107,6 +107,7 @@ struct ust_app_session {
        /* UID/GID of the user owning the session */
        uid_t uid;
        gid_t gid;
+       struct cds_list_head teardown_node;
 };
 
 /*
@@ -130,6 +131,16 @@ struct ust_app {
        struct lttng_ht *sessions;
        struct lttng_ht_node_ulong pid_n;
        struct lttng_ht_node_ulong sock_n;
+       /*
+        * This is a list of ust app session that, once the app is going into
+        * teardown mode, in the RCU call, each node in this list is removed and
+        * deleted.
+        *
+        * Element of the list are added when an application unregisters after each
+        * ht_del of ust_app_session associated to this app. This list is NOT used
+        * when a session is destroyed.
+        */
+       struct cds_list_head teardown_head;
 };
 
 #ifdef HAVE_LIBLTTNG_UST_CTL