struct reuse_tcp {
/** rbtree node with links in tcp_reuse tree. key is NULL when not
* in tree. Both active and empty connections are in the tree.
- * key is this structure, the sockaddr and and then is-ssl bool,
- * and then ptr value for several times same address in tree */
+ * key is a pointer to this structure, the members used to compare
+ * are the sockaddr and and then is-ssl bool, and then ptr value is
+ * used in case the same address exists several times in the tree
+ * when there are multiple connections to the same destination to
+ * make the rbtree items unique. */
rbnode_type node;
/** the key for the tcp_reuse tree. address of peer, ip4 or ip6,
* and port number of peer */