From: | "Greg Sabino Mullane" <greg(at)turnstep(dot)com> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Cc: | pgsql-interfaces(at)postgresql(dot)org |
Subject: | Re: [HACKERS] Listen/Notify payload and interfaces |
Date: | 2010-02-17 18:04:14 |
Message-ID: | 06fb833dde8748d07bb996c39d221bd8@biglumber.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers pgsql-interfaces |
-----BEGIN PGP SIGNED MESSAGE-----
Hash: RIPEMD160
> With the new listen/notify implementation we can send a payload along
> with the notification. This has been in the protocol already since
> years and there is no change needed for libpq. However we need to
> adapt the various interfaces to allow a payload to be sent and
> received.
DBD::Pg has been ready since 2008, if you need something to test with. :)
Usage is:
while (my $notify = $dbh->pg_notifies) {
my ($name, $pid, $payload) = @$notify;
print qq{I received notice "$name" from PID $pid, payload was "$payload"\n};
}
Not sure what you mean by adapting interfaces to send payloads, I imagine
most if not all simply require a NOTIFY to be sent via PQexec.
- --
Greg Sabino Mullane greg(at)turnstep(dot)com
End Point Corporation http://www.endpoint.com/
PGP Key: 0x14964AC8 201002171302
http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8
-----BEGIN PGP SIGNATURE-----
iEYEAREDAAYFAkt8L3oACgkQvJuQZxSWSsik0wCfZexc8ZU2/zo4JZQ47YblKend
yEMAoLdG4IS3pc163UVSpQ11/de+xzUT
=dx6+
-----END PGP SIGNATURE-----
From | Date | Subject | |
---|---|---|---|
Next Message | David E. Wheeler | 2010-02-17 18:30:03 | Re: PostgreSQL::PLPerl::Call - Simple interface for calling SQL functions from PostgreSQL PL/Perl |
Previous Message | Peter Eisentraut | 2010-02-17 17:39:12 | Re: codlin_month is up and complain - PL/Python crash |
From | Date | Subject | |
---|---|---|---|
Next Message | David E. Wheeler | 2010-02-17 20:50:12 | Re: [HACKERS] Listen/Notify payload and interfaces |
Previous Message | Joachim Wieland | 2010-02-17 08:39:18 | Listen/Notify payload and interfaces |