Re: ECPG thread-safety - Mailing list pgsql-hackers

I must have spent at least a day looking at configure threads tests
the past few months. Look at the tests in Python, OpenLDAP, MySQL,
Apache 2.0, Perl, ... each and everyone of them is different!
Ouch. Way above my experience in configure.

One of the packages (sorry cannot find my notes on which one!) I
looked at down the test on a per-OS level - supplying the tread
compile and link flags used on that OS and CC to see if they
worked... Probably the simplest way to go?

L.

Bruce Momjian writes:> > Would someone take those patches and hunt around for proper 'configure'> tests?  I can do the
configurecoding, but I don't know what tests to> make.> >     http://services.csl.co.uk/postgresql/> > >
--------------------------------------------------------------------------->> Larry Rosenman wrote:> > > > > > --On
Friday,March 28, 2003 10:54:23 -0500 Bruce Momjian > > <pgman@candle.pha.pa.us> wrote:> > > > >> > > I have the libpq
patchin my mailbox that just needs configure thread> > > testing code.  I will get that in for 7.4.> > I can help with
theUnixWare threads stuff.  Also, Micheal Meskes now has > > an account> > on my UnixWare box.> > > > The threads are
nativeon 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/> > >>> > >>
alongwith 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
completethis.> > >>> > >> 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
Capplication.  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
touse 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
listarchives?> > >> > > 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
SpringsDrive, Garland, TX 75044-6749> > > > > > > > > > -- >   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