Merge pull request #530 from elBoberido/iox2-264-fix-accessability-of…

…-file-descriptor-native-handle-in-cxx-api

[#264] Fix accessability of 'FileDescriptorView' methods

iceoryx2-ffi/cxx/include/iox2/file_descriptor.hpp

@@ -35,15 +35,7 @@ class FileDescriptorBased {
 
 /// A view to a [`FileDescriptor`].
 class FileDescriptorView : public FileDescriptorBased {
-  private:
-    template <ServiceType>
-    friend class WaitSet;
-    friend class FileDescriptor;
-    template <ServiceType>
-    friend class Listener;
-
-    explicit FileDescriptorView(iox2_file_descriptor_ptr handle);
-
+  public:
     /// Returns a [`FileDescriptorView`] to the underlying [`FileDescriptor`].
     auto file_descriptor() const -> FileDescriptorView override;
 
@@ -57,6 +49,15 @@ class FileDescriptorView : public FileDescriptorBased {
     ///
     auto unsafe_native_handle() const -> int32_t;
 
+  private:
+    template <ServiceType>
+    friend class WaitSet;
+    friend class FileDescriptor;
+    template <ServiceType>
+    friend class Listener;
+
+    explicit FileDescriptorView(iox2_file_descriptor_ptr handle);
+
     iox2_file_descriptor_ptr m_handle = nullptr;
 };