From: Brendan Rempel <rempelb@cybersoft.ab.ca>
To: pgsql-interfaces@postgresql.org
Subject: pThread and libpq problem
Date: Tue, 25 Aug 1998 12:25:18 -0600
Message-ID: <35E3018E.17736CEA@cybersoft.ab.ca> (raw)
Hello,
I just started using libpq. I got a single process accessing and
quering a database without a hitch. But when I copied the code to a
pthread callback function, I get an immediate "segmentation fault"
(running under Red-Hat Linux release 5.0 on i586). I thinned out all
the necessary code to reproduce this error and tracked it down to a
single call:
void *server(void *arg)
{
PGconn conn = PQsetdb(pghostNull, pgportNull, pgoptionsNull,
pgttyNull,DbName);
...
This code has no problems running in a single threaded executable. I
read back issues of this mailing list and found several people using
libpq in multithreaded programs, so I am probably doing something
obviously wrong. I don't know if it matters, but I am using C++ with
libpq C library. But if anybody can help me, it would be appreciated.
Thanks in advance,
Brendan
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To: pgsql-interfaces@postgresql.org
Cc: rempelb@cybersoft.ab.ca
Subject: Re: pThread and libpq problem
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