On Fri, Oct 22, 2010 at 12:08:54PM -0700, fazool mein wrote: > Hello guys, > > I'm writing a function that will read data from the buffer in xlog > (i.e. from XLogCtl->pages and XLogCtl->xlblocks). I want to make > sure that I am doing it correctly.
Got an example of what the function might look like? > For reading from the buffer, do I need to lock WALInsertLock or > WALWriteLock? Also, can you explain a bit the usage of 'LW_SHARED'. > Can we use it for read purposes? Help me understand. Do you foresee some kind of concurrency issue, and if so, what? Cheers, David. > > Thanks a lot. -- David Fetter <da...@fetter.org> http://fetter.org/ Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter Skype: davidfetter XMPP: david.fet...@gmail.com iCal: webcal://www.tripit.com/feed/ical/people/david74/tripit.ics Remember to vote! Consider donating to Postgres: http://www.postgresql.org/about/donate -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
