Re: CommitFest 2009-07: Yay, Kevin! Thanks, reviewers!
Alvaro Herrera <alvherre@commandprompt.com>
From: Alvaro Herrera <alvherre@commandprompt.com>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: Robert Haas <robertmhaas@gmail.com>, Greg Smith <greg@2ndquadrant.com>, Kevin Grittner <kevin.grittner@wicourts.gov>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2010-08-19T15:08:38Z
Lists: pgsql-hackers
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. -- Álvaro Herrera <alvherre@commandprompt.com> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support