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Re: Streaming Replication on win32

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

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From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
To: Marko Kreen <markokr@gmail.com>
Cc: Dimitri Fontaine <dfontaine@hi-media.com>, Joe Conway <mail@joeconway.com>, Magnus Hagander <magnus@hagander.net>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2010-01-22T11:34:26Z
Lists: pgsql-hackers 
Marko Kreen wrote:
> On 1/22/10, Dimitri Fontaine <dfontaine@hi-media.com> wrote:
>> Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
>>  > The problem only applies to libpq calls from the backend. Client apps
>>  > are not affected, only backend modules. If there's any other modules out
>>  > there that use libpq, then yes, those have a problem too.
>>
>>
>> plproxy comes to mind.
> 
> Thats interesting.  PL/Proxy deos not use PQexec, it uses async
> execution and waits on sockets with plain select() called
> from code compiled with backend headers.
> 
> So it seems to be already using pgwin32_select().  Or not?

Yes. I just grepped plproxy source code and there's indeed no blocking
libpq calls there.

-- 
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com