Destructor of ACE_Sig_Handler removes registered signal handlers of all objects

[amartin755]

Version

ACE-8.0.2

Description

According to this code, all registered signals are removed because ACE_Sig_Handler::signal_handlers_ is static:

ACE_Sig_Handler::~ACE_Sig_Handler ()
{
  for (int s = 1; s < ACE_NSIG; ++s)
    if (ACE_Sig_Handler::signal_handlers_[s])
      ACE_Sig_Handler::remove_handler_i (s);
}

When you have two objects of ACE_Sig_Handler, then the destructor affects signal handlers that were registered via the other object.
This brings me to the question, whether this class must be used as a singleton.

Do i understand the code correctly? Is this the intended use?