Re: connection watchdog

> > How can I check from C-program whether connection to pgsql
> > engine still works or already lost?
> > PQstatus() returns CONNECTION_OK even when backend process is killed
> > by hands after connection is made.
>
> There is a function which returns fd of the connection to postgresql database.
> If you install a SIGPIPE handler on that connections, perhaps you can catch the
> signal that backend is killed. But you will get that signal only when you
> attempt to write to the fd, according to 'man 7 signal' on my mandrake box.
>
> Just theory. Try it out and let us know if it works..

The point is that I don't want to use an interface level lower
than libpq interface level. At present I using a common "select 1" query
(via PQexec()) with check it reslut for this purpose. But this method
results in growing pgsql log and needless load of PG engine.

> Bye
> Shridhar

mike