[Clp] CLP dual obj value

[Jan-Willem Goossens]

Hi,

I've been trying to find a way to retrieve the primal and dual objective 
function values during a CLP solve (using primal/dual simplex)

Getting the primal obj value is no problem (objectiveValue()),.
However, I havent found how to get the dual obj value (once/when available). 
Can this be retrieved directly?

The idea is to use these two, or the number/sum of infeasibilities to come 
up with some kind of crude progress indicator during the solve (not unlike 
the standard barrier output does).

Are these methods thread-safe? Or should I use some callbacks to report the 
value back?

Thanks for any help.
Regards,

Jan-Willem Goossens