Re: Entities created in one query not available in another in extended protocol - Mailing list pgsql-hackers

From Shay Rojansky
Subject Re: Entities created in one query not available in another in extended protocol
Date
Msg-id CADT4RqCoOzPYmZeHEYUdZrtAraCtqXmUGcq+Gntnq0zc_mxo7w@mail.gmail.com
Whole thread Raw
In response to Re: Entities created in one query not available in another in extended protocol  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers


On Sun, Jun 14, 2015 at 6:31 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Shay Rojansky <roji@roji.org> writes:
> [ rely on non-blocking sockets to avoid deadlock ]

Yeah, that's pretty much the approach libpq has taken: write (or read)
when you can, but press on when you can't.

Good to hear.

> The main issue I'm concerned about
> is SSL/TLS, which is a layer on top of the sockets and which might not work
> well with non-blocking sockets...

We have not had word of any such problem with libpq.  It's possible that
the intersection of SSL users with non-blocking-mode users is nil, but
I kinda doubt that.  You do need to interpret openssl's return codes
correctly ...

I don't think there's a problem with non-blocking I/O and SSL per se, the question is about the .NET TLS/SSL implementation Npgsql uses - so it's really totally unrelated to PostgreSQL...

Shay

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