From: Larry Rosenman <ler@lerctr.org>
To: Bruce Momjian <pgman@candle.pha.pa.us>
To: Lee Kindness <lkindness@csl.co.uk>
Cc: Philip Yarra <philip@utiba.com>
Cc: pgsql-interfaces@postgresql.org, pgsql-hackers@postgresql.org, Michael Meskes <meskes@postgresql.org>
Subject: Re: ECPG thread-safety
Date: Fri, 28 Mar 2003 09:59:12 -0600
Message-ID: <63340000.1048867152@lerlaptop.iadfw.net> (raw)
In-Reply-To: <200303281554.h2SFsNd04438@candle.pha.pa.us>
References: <200303281554.h2SFsNd04438@candle.pha.pa.us>
--On Friday, March 28, 2003 10:54:23 -0500 Bruce Momjian
<pgman@candle.pha.pa.us> wrote:
>
> I have the libpq patch in my mailbox that just needs configure thread
> testing code. I will get that in for 7.4.
I can help with the UnixWare threads stuff. Also, Micheal Meskes now has
an account
on my UnixWare box.
The threads are native on UW, but you need to invoke the cc -Kpthread
option.
LER
>
> -------------------------------------------------------------------------
> --
>
> Lee Kindness wrote:
>> Philip,
>>
>> You can find the "patch so far" at:
>>
>> http://services.csl.co.uk/postgresql/
>>
>> along with a libpq thread-safe patch.
>>
>> The thread referenced by Bruce's email details some of the issues
>> still to be looked at. The main work is integration with the build
>> system (testing for and linking in POSIX threads) and testing.
>>
>> I'm more than happy for you to look at at, I haven't had the time I
>> hoped to complete this.
>>
>> Thanks, Lee.
>>
>> Philip Yarra writes:
>> > As I found out recently, ECPG is not thread-safe. This is a problem
>> > for us, as we really need to be able to use ECPG* in a
>> > multi-threaded C application. Michael mentioned that Lee is working
>> > on fixing these problems, but was not sure when it would be
>> > complete.
>> >
>> > So, my questions are:
>> > Lee/anyone, do you have an estimated completion date?
>> > If not, can we (myself plus a "real" C programmer) help you?
>> >
>> > Regards, Philip Yarra.
>> >
>> > * Yes, we could use libpq, but ECPG minimises our porting from
>> > Informix. Rewriting everything to use libpq would be too expensive.
>> >
>>
>
> --
> Bruce Momjian | http://candle.pha.pa.us
> pgman@candle.pha.pa.us | (610) 359-1001
> + If your life is a hard drive, | 13 Roberts Road
> + Christ can be your backup. | Newtown Square, Pennsylvania
> 19073
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: Have you searched our list archives?
>
> http://archives.postgresql.org
>
--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 972-414-9812 E-Mail: ler@lerctr.org
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-interfaces@postgresql.org
Cc: ler@lerctr.org, pgman@candle.pha.pa.us, lkindness@csl.co.uk, philip@utiba.com, meskes@postgresql.org
Subject: Re: ECPG thread-safety
In-Reply-To: <63340000.1048867152@lerlaptop.iadfw.net>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox