Re: Listen/Notify payload and interfaces

Поиск
Список
Период
Сортировка
От Greg Sabino Mullane
Тема Re: Listen/Notify payload and interfaces
Дата
Msg-id 06fb833dde8748d07bb996c39d221bd8@biglumber.com
обсуждение исходный текст
Ответ на Listen/Notify payload and interfaces  (Joachim Wieland <joe@mcknight.de>)
Ответы Re: Listen/Notify payload and interfaces  ("David E. Wheeler" <david@kineticode.com>)
Список pgsql-hackers
-----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@turnstep.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-----




В списке pgsql-hackers по дате отправления:

Предыдущее
От: Peter Eisentraut
Дата:
Сообщение: Re: codlin_month is up and complain - PL/Python crash
Следующее
От: "David E. Wheeler"
Дата:
Сообщение: Re: PostgreSQL::PLPerl::Call - Simple interface for calling SQL functions from PostgreSQL PL/Perl