X-Original-To: pgsql-hackers@postgresql.org
Received: from spampd.localdomain (postgresql.org [64.49.215.8])
	by postgresql.org (Postfix) with ESMTP
	id 12E3D475E77; Fri, 28 Mar 2003 10:54:40 -0500 (EST)
Received: from candle.pha.pa.us (momjian.navpoint.com [207.106.42.251])
	by postgresql.org (Postfix) with ESMTP
	id 3D31247580B; Fri, 28 Mar 2003 10:54:30 -0500 (EST)
Received: (from pgman@localhost)
	by candle.pha.pa.us (8.11.6/8.10.1) id h2SFsNd04438;
	Fri, 28 Mar 2003 10:54:23 -0500 (EST)
From: Bruce Momjian <pgman@candle.pha.pa.us>
Message-Id: <200303281554.h2SFsNd04438@candle.pha.pa.us>
Subject: Re: ECPG thread-safety
In-Reply-To: <16004.6084.733022.946746@kelvin.csl.co.uk>
To: Lee Kindness <lkindness@csl.co.uk>
Date: Fri, 28 Mar 2003 10:54:23 -0500 (EST)
Cc: Philip Yarra <philip@utiba.com>, pgsql-interfaces@postgresql.org,
	pgsql-hackers@postgresql.org, Michael Meskes <meskes@postgresql.org>
X-Mailer: ELM [version 2.4ME+ PL99 (25)]
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=US-ASCII
X-Spam-Status: No, hits=-26.0 required=5.0
	tests=BAYES_01,EMAIL_ATTRIBUTION,IN_REP_TO,QUOTED_EMAIL_TEXT,
	REPLY_WITH_QUOTES autolearn=ham	version=2.50
X-Spam-Level: 
X-Spam-Checker-Version: SpamAssassin 2.50 (1.173-2003-02-20-exp)
X-Archive-Number: 200303/1150
X-Sequence-Number: 37396


I have the libpq patch in my mailbox that just needs configure thread
testing code.  I will get that in for 7.4.

---------------------------------------------------------------------------

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