增加对KNI的Watchdog实现双向保活。

platform/include/internal/proxy.h

@@ -8,6 +8,7 @@
 struct ssl_mgr;
 struct key_keeper;
 struct acceptor_kni_v2;
+struct watchdog_kni;
 
 enum TFE_STAT_FIELD
 {
@@ -101,6 +102,7 @@ struct tfe_proxy
     struct acceptor_kni_v1 * kni_v1_acceptor;
     struct acceptor_kni_v2 * kni_v2_acceptor;
     struct sender_scm * scm_sender;
+    struct watchdog_kni * watchdog_kni;
 
 	/* DEBUG OPTIONS */
 	unsigned int tcp_all_passthrough;