增加对KNI的Watchdog实现双向保活。

platform/CMakeLists.txt

@@ -1,7 +1,7 @@
 add_executable(tfe src/acceptor_kni_v1.cpp src/acceptor_kni_v2.cpp src/ssl_stream.cpp src/key_keeper.cpp
 	src/ssl_sess_cache.cpp src/ssl_sess_ticket.cpp src/ssl_service_cache.cpp
 	src/ssl_trusted_cert_storage.cpp src/ev_root_ca_metadata.cpp src/ssl_utils.cpp
-	src/tcp_stream.cpp src/main.cpp src/proxy.cpp src/sender_scm.cpp)
+	src/tcp_stream.cpp src/main.cpp src/proxy.cpp src/sender_scm.cpp src/watchdog_kni.cpp)
 
 target_include_directories(tfe PUBLIC ${CMAKE_CURRENT_LIST_DIR}/include/external)
 target_include_directories(tfe PRIVATE ${CMAKE_CURRENT_LIST_DIR}/include/internal)