Add node graph functions

* rmw_get_subscriber_names_and_types_by_node
* rmw_get_publisher_names_and_types_by_node
* rmw_get_service_names_and_types_by_node

rmw_implementation/src/functions.cpp

@@ -30,6 +30,7 @@
 
 #include "rmw/error_handling.h"
 #include "rmw/names_and_types.h"
+#include "rmw/get_node_info_and_types.h"
 #include "rmw/get_service_names_and_types.h"
 #include "rmw/get_topic_names_and_types.h"
 #include "rmw/rmw.h"
@@ -375,6 +376,24 @@ RMW_INTERFACE_FN(rmw_wait,
     rmw_subscriptions_t *, rmw_guard_conditions_t *, rmw_services_t *,
     rmw_clients_t *, rmw_wait_set_t *, const rmw_time_t *))
 
+RMW_INTERFACE_FN(rmw_get_publisher_names_and_types_by_node,
+  rmw_ret_t, RMW_RET_ERROR,
+  6, ARG_TYPES(
+    const rmw_node_t *, rcutils_allocator_t *, const char *, const char *, bool,
+    rmw_names_and_types_t *))
+
+RMW_INTERFACE_FN(rmw_get_subscriber_names_and_types_by_node,
+  rmw_ret_t, RMW_RET_ERROR,
+  6, ARG_TYPES(
+    const rmw_node_t *, rcutils_allocator_t *, const char *, const char *, bool,
+    rmw_names_and_types_t *))
+
+RMW_INTERFACE_FN(rmw_get_service_names_and_types_by_node,
+  rmw_ret_t, RMW_RET_ERROR,
+  5, ARG_TYPES(
+    const rmw_node_t *, rcutils_allocator_t *, const char *, const char *,
+    rmw_names_and_types_t *))
+
 RMW_INTERFACE_FN(rmw_get_topic_names_and_types,
   rmw_ret_t, RMW_RET_ERROR,
   4, ARG_TYPES(
@@ -458,6 +477,9 @@ void prefetch_symbols(void)
   GET_SYMBOL(rmw_create_wait_set)
   GET_SYMBOL(rmw_destroy_wait_set)
   GET_SYMBOL(rmw_wait)
+  GET_SYMBOL(rmw_get_publisher_names_and_types_by_node)
+  GET_SYMBOL(rmw_get_subscriber_names_and_types_by_node)
+  GET_SYMBOL(rmw_get_service_names_and_types_by_node)
   GET_SYMBOL(rmw_get_topic_names_and_types)
   GET_SYMBOL(rmw_get_service_names_and_types)
   GET_SYMBOL(rmw_get_node_names)