[Boost-users] Extracting a boost::function from a boost::signals2::signal

Subject: [Boost-users] Extracting a boost::function from a boost::signals2::signal
From: Chris Stankevitz (chrisstankevitz_at_[hidden])
Date: 2012-07-19 17:31:26

Hello,

I would like to create an "Interceptor" class that can generically
receive a void-returning signal with n arguments (as something like a
boost::function<void()>) and, at runtime, decide whether the signal
will be delivered to the final slot.  Or perhaps even deliver the
signal at some later time.  Psuedocode might look like this:

class Interceptor
{
  template<class Signal>
  void Connect(Signal& signal, const Signal::slot_type& slot)
  {
    signal.connect_generic(slot, bind(&Interceptor::Dispatch, this, _1));
  }

  void Dispatch(const boost::function<void()>& Function)
  {
    if (DispatchNow())
    {
      Function();
    }
    else if (DispatchLater())
    {
      DispatchLater.push_back(Function);
    }
  }
};

Is such a thing possible?

Thank you,

Chris