Refactor of regenerate_port. (#3640)

Signed-off-by: Miguel Company <MiguelCompany@eprosima.com>
Co-authored-by: Miguel Company <MiguelCompany@eprosima.com>

src/cpp/rtps/transport/shared_mem/SharedMemManager.hpp

@@ -784,10 +784,9 @@ class SharedMemManager :
 
  void regenerate_port()
  {
- auto new_port = shared_mem_manager_->regenerate_port(global_port_, global_port_->open_mode());
-
- auto new_listener = new_port->create_listener();
-
+ auto new_port = global_port_;
+ shared_mem_manager_->regenerate_port(new_port, new_port->open_mode());
+ auto new_listener = std::make_shared<Listener>(shared_mem_manager_, new_port);
  *this = std::move(*new_listener);
  }
 
@@ -931,9 +930,7 @@ class SharedMemManager :
  void regenerate_port()
  {
  recover_blocked_processing();
- auto new_port = shared_mem_manager_->regenerate_port(global_port_, open_mode_);
-
- *this = std::move(*new_port);
+ shared_mem_manager_->regenerate_port(global_port_, open_mode_);
  }
 
  SharedMemManager* shared_mem_manager_;
@@ -1017,11 +1014,11 @@ class SharedMemManager :
 
 private:
 
- std::shared_ptr<Port> regenerate_port(
- std::shared_ptr<SharedMemGlobal::Port> port,
+ void regenerate_port(
+ std::shared_ptr<SharedMemGlobal::Port>& port,
  SharedMemGlobal::Port::OpenMode open_mode)
  {
- return std::make_shared<Port>(this, global_segment_.regenerate_port(port, open_mode), open_mode);
+ port = global_segment_.regenerate_port(port, open_mode);
  }
 
  /**