2016-03-09 13:36, Ananyev, Konstantin: > > > + if (to_send == 0) > > > + return 0; > > > > Why this check is done in the lib? > > What is the performance gain if we are idle? > > It can be done outside if needed. > > Yes, that could be done outside, but if user has to do it anyway, > why not to put it inside? > I don't expect any performance gain/loss because of that - > just seems a bit more convenient to the user.
It is handling an idle case so there is no gain obviously. But the condition branching is surely a loss. So why the user would you like to do this check?
