Add visibility macros

Signed-off-by: methylDragon <methylDragon@gmail.com>

include/rosidl_dynamic_typesupport_fastrtps/serialization_support.h

@@ -17,6 +17,7 @@
 
 #include <rosidl_dynamic_typesupport_fastrtps/identifier.h>
 #include <rosidl_dynamic_typesupport/api/serialization_support_interface.h>
+#include <rosidl_dynamic_typesupport/visibility_control.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -26,9 +27,11 @@ extern "C" {
 /// This is the main file to include
 
 // CORE ============================================================================================
+ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_PUBLIC
 rosidl_dynamic_typesupport_serialization_support_impl_t *
 rosidl_dynamic_typesupport_fastrtps_create_serialization_support_impl();
 
+ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_PUBLIC
 rosidl_dynamic_typesupport_serialization_support_interface_t *
 rosidl_dynamic_typesupport_fastrtps_create_serialization_support_interface();
 

include/rosidl_dynamic_typesupport_fastrtps/visibility_control.h

@@ -0,0 +1,56 @@
+// Copyright 2023 Open Source Robotics Foundation, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS__VISIBILITY_CONTROL_H_
+#define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS__VISIBILITY_CONTROL_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+// This logic was borrowed (then namespaced) from the examples on the gcc wiki:
+//     https://gcc.gnu.org/wiki/Visibility
+
+#if defined _WIN32 || defined __CYGWIN__
+  #ifdef __GNUC__
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_EXPORT __attribute__ ((dllexport))
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_IMPORT __attribute__ ((dllimport))
+  #else
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_EXPORT __declspec(dllexport)
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_IMPORT __declspec(dllimport)
+  #endif
+  #ifdef ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_BUILDING_DLL
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_PUBLIC ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_EXPORT
+  #else
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_PUBLIC ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_IMPORT
+  #endif
+  #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_LOCAL
+#else
+  #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_EXPORT __attribute__ ((visibility("default")))
+  #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_IMPORT
+  #if __GNUC__ >= 4
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_PUBLIC __attribute__ ((visibility("default")))
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_LOCAL  __attribute__ ((visibility("hidden")))
+  #else
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_PUBLIC
+    #define ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS_LOCAL
+  #endif
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // ROSIDL_DYNAMIC_TYPESUPPORT_FASTRTPS__VISIBILITY_CONTROL_H_