From: | Dmitry Igrishin <dmitigr(at)gmail(dot)com> |
---|---|
To: | Catonano <catonano(at)gmail(dot)com> |
Cc: | pgsql-interfaces(at)lists(dot)postgresql(dot)org |
Subject: | Re: the wire protocol |
Date: | 2019-01-19 15:16:31 |
Message-ID: | CAAfz9KPbpiQuXX1+=55aHoNBXrGnYYsWOKcci1f0Bh4eoN=TLg@mail.gmail.com |
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Lists: | pgsql-interfaces |
сб, 19 янв. 2019 г. в 16:56, Catonano <catonano(at)gmail(dot)com>:
>
> Hello,
>
> there's this Python project using the so called wire protocol (as far as I understand)
>
> https://github.com/MagicStack/asyncpg
>
> I'm caressing the idea to create a GNU Guile based project that does the same thing
>
> But I don't understand how they manage to get the connection to Postgresql, their code is too complicated for me
>
> Do they use the C library, libpq ?
> Or do they manage the connection in their own code ?
AFAIK, asyncpg implements the frontend/backend protocol described here:
https://www.postgresql.org/docs/current/protocol.html
> Should I use libpq ?
Not necessary.
> Or should I manage the connection in my own code ?
You can implement the protocol yourself in pure Guile. It's up to you to decide.
> In Guile I can manipulate sockets and the semantics are pretty close to the ones of plain C
>
> So even an example in C would be fine
>
> I'd like to use a Unix socket
To do it, first of all you need to familiarize with the
frontend/backend protocol mentioned above.
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