Re: [Haskell-cafe] HDBC-postgresql and safe/unsafe FFI calls

On Thu, Sep 2, 2010 at 1:00 AM, David Powell wrote:

Thanks Jason, I think I had read that - I quite enjoy Edward's posts. Re-reading, seems to confirm what I thought, most (all?) of the FFI calls in HDBC-postgresql should be changed to "safe".

Wouldn't that require thread safety on the part of libpq? Versions 8.4 and earlier requires the library to be configured with the option --enable-thread-safety, although version 9.0 has thread safety turned on by default. http://www.postgresql.org/docs/8.4/static/libpq-threading.html http://www.postgresql.org/docs/9.0/static/libpq-threading.html At least the Ubuntu PostgreSQL 8.4 packages are compiled with thread safety, but I can't speak for other distributions. Best, Leon