Fix: node namespace name (#148) (#149)

* Fix: node namespace name

* Fix

* Update

* Uncrstify

(cherry picked from commit 1ec1489)

Co-authored-by: Pablo Garrido <pablogs9@gmail.com>

Author: mergify[bot]

rmw_microxrcedds_c/src/rmw_node.c

@@ -91,12 +91,20 @@ rmw_node_t * create_node(
     (uint16_t)domain_id,
     rmw_uxrce_entity_naming_buffer, UXR_REPLACE | UXR_REUSE);
 #else
+  static char xrce_node_name[RMW_UXRCE_NODE_NAME_MAX_LENGTH];
+
+  if (strcmp(namespace_, "/") == 0) {
+    snprintf(xrce_node_name, RMW_UXRCE_NODE_NAME_MAX_LENGTH, "%s", name);
+  } else {
+    snprintf(xrce_node_name, RMW_UXRCE_NODE_NAME_MAX_LENGTH, "%s/%s", namespace_, name);
+  }
+
   participant_req = uxr_buffer_create_participant_bin(
     &node_info->context->session,
     *node_info->context->creation_destroy_stream,
     node_info->participant_id,
     domain_id,
-    name,
+    xrce_node_name,
     UXR_REPLACE | UXR_REUSE);
 #endif /* ifdef RMW_UXRCE_USE_REFS */
 
@@ -129,7 +137,7 @@ rmw_create_node(
   if (!name || strlen(name) == 0) {
     RMW_SET_ERROR_MSG("name is null");
   } else if (!namespace_ || strlen(namespace_) == 0) {
-    RMW_SET_ERROR_MSG("node handle not from this implementation");
+    RMW_SET_ERROR_MSG("namespace is null");
   } else {
     rmw_node = create_node(name, namespace_, domain_id, context);
   }