On Thu, Aug 19, 2010 at 17:08, Alvaro Herrera <alvhe...@commandprompt.com> wrote: > Excerpts from Heikki Linnakangas's message of jue ago 19 02:02:34 -0400 2010: >> On 19/08/10 04:46, Robert Haas wrote: > >> > And so far we haven't seen a patch for that. >> > Somebody write one. And then let's get it reviewed and committed RSN. >> >> Fujii is on vacation, but I've started working on it. The two issues >> with Fujii's latest patch are that it would not respond promptly on >> platforms where signals don't interrupt sleep, and it suffers the >> classic race condition that pselect() was invented for. I'm going to >> replace pg_usleep() with select(), and use the so called "self-pipe >> trick" to get over the race condition. I have that written up but I want >> to do some testing and cleanup before posting the patch. > > Hmm, IIRC the self-pipe trick doesn't work on Windows, mainly because > select() doesn't handle pipes, only sockets. You may need some extra > hack to make it work there.
We have a pipe implementation using sockets that is used on Windows for just this reason, IIRC. -- Magnus Hagander Me: http://www.hagander.net/ Work: http://www.redpill-linpro.com/ -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
