Hello all,
it's very interesting to see the discussion of "threads" again.
I've portet PostgreSQL to a "thread-per-connection" model based on
pthreads
and it is functional. Most of the work was finding all the static
globals in the sourcefiles
and swapping them between threads and freeing memory if a thread
terminates.
(PostgreSQL isn't written very clean in the aspects of memory
handling).
My version of the thread-based PostgreSQL is not very efficient at the
moment because
I haven't done any optimisation of the code to better support threads
and I'm using just a
simple semaphore to control switching of data but this could be a
starting point for
others who want to see this code. If this direction will be taken
seriously I'm very willing
to help.
If someone is interested in the code I can send a zip file to everyone
who wants.
Ulrich
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