| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Feedback on writing extensible modules |
| Date: | 2009-05-20 20:18:07 |
| Message-ID: | 1242850687.27960.197.camel@ebony.2ndQuadrant |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Wed, 2009-05-20 at 16:03 -0400, Tom Lane wrote:
> Simon Riggs <simon(at)2ndQuadrant(dot)com> writes:
> > 2. shmem_startup_hook doesn't allow multiple modules to create shmem.
> > All callers of the hook think they are the only caller, causing chaos if
> > multiple people need this.
>
> The only known caller, contrib/pg_stat_statements/, does not think that.
> Do what it does.
Hmmm, it works, I guess. As long as everyone does that.
Thanks for the workaround.
> I agree it's undocumented, but so are the other hooks ...
Some are well documented in the code, not all though.
--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support
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