I'm not convinced that I recall not being convinced ... :) Essentially I changed the order of lock acquire/release so that the canlock() loop in proc.c:/^postnote could be eliminated. Not significant for performance, but it seemed more elegant and I think it also avoided looking at any shared data outside code regions protected by a lock. This was many years ago (when my now-white beard was still merely grey). Not worth going back to reconstruct the arguments, but I'll send Giacomo and Nemo a copy of my proc.c to examine for themselves. On 24 July 2017 at 20:13, Fran. J Ballesteros wrote: > do you remember the proposal? > thanks > > El 24 jul 2017, a las 18:39, Erik Quanstrom > escribió: > > I had a discussion with Richard about this a few years ago. Richard was > no longer convinced of the solution. at the time I agreed with his > reasoning. the comment should be changed. > > - erik > >