5cbc2e8bc1
dependant code has to directly increment the "references" value of each such structure using the corresponding lock. Apart from code duplication, this provided no "REF_CHECK/REF_PRINT" checking and violated encapsulation.
The stuff in here is based on patches supplied to me by Steven Schoch <schoch@sheba.arc.nasa.gov> to do DSS. I have since modified a them a little but a debt of gratitude is due for doing the initial work.