Evening, Take a look at Samsons site:
http://www.alsherok.net/snippets.html (I believe is the snippet addie) He has the below mentioned code mod for SMAUG server. I dunno the feasability for porting it to ROM. Kyndig On Tue, 11 Dec 2001, brian moore wrote: > On Wed, Dec 12, 2001 at 02:23:07AM -0500, Big Red wrote: > > Yeah, I heard something about DNS lookups lagging things immensly. > > > > ...So how do you fix it? > > One of the following. > > A) Disable dns lookups on connections > B) Use a coprocess to look up the hostname > C) Use a seperate thread to look up the hostname. > > A) is trivial (look in comm.c). > > B) is what I do: when the mud starts, it spawns a coprocess that does > the DNS lookups. (every incoming socket sends "<id#> <IP> <port>\n" > through a pipe to the coprocess, the coprocess sends back "<id#> > [EMAIL PROTECTED]" through another pipe ... the id# is a simple > counter to ensure we're getting the response we think even if they > return out of order.) Because children keep open files, the > coprocess actually forks when it gets a new request, so one slow > resolving site doesn't slow down others trying to log in, and > characters are put in a 'GETTTING_IDENT' CON_ state until their > hostname resolves or times out. > > This is pretty simple to do if you know how to do coprocesses (or > steal the code from Advanced Programming in the Unix Environment). > > C) can be much trickier: beware that threads can be tricky to debug and > you now have to ensure your threads don't piss on the parent's memory > (the memory management, for example, isn't thread safe... so you'll > have to be carful in allocating strings.) > > >
