| From: | Florian Pflug <fgp(at)phlo(dot)org> |
|---|---|
| To: | Amir Abdollahi <amirabd2130(at)yahoo(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Add a new backend process |
| Date: | 2010-06-16 10:41:24 |
| Message-ID: | D2308154-1EE8-400D-A737-F28AE9B42274@phlo.org |
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| Lists: | pgsql-hackers |
On Jun 16, 2010, at 8:47 , Amir Abdollahi wrote:
> I want to add a new backend process to postgres, to include my own auditing modules.
> How can i do that, also how can i signal it after!
The existing auxiliary processes (in 8.4) and their entry points are
autovacuum (autovacuum.c, AutoVacLauncherMain)
bgwriter (bgwriter.c, BackgroundWriterMain)
walwriter (walwriter.c, WalWriterMain)
startup/recovery (xlog.c, StartupProcessMain)
You should probably compare the characteristics of these processes (when are they launched, how do they interface with the database, ...) to your requirements. Pick the best-matching candidate and start by copying what it does.
best regards,
Florian Pflug
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