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Vadim Zaliva <lord@crocodile.org> writes: > Now I am facing bigger challenge :-) I am trying to write app which > should be able to do simultaneously 2 things: > > 1. Accept command line user input using readline. it should not be in > scheme syntax. I mean, I want "QUIT" not "(QUIT)" command. > > 2. Listen to am TCP socket connection and read and process data as it > becomes available. You can do this all from Scheme using two or more threads, all from Scheme in a single thread using select(), or mostly from C, with callouts to Scheme. Unfortunately, I don't know readline very well, so I can't help much there. My first suggestion is to try to use guile for the user interaction stuff, including readline on stdin, and the socket-based input. I am pretty sure that you can do this multiplexing without mucking around in C. The approach that I would try is to have two Scheme threads: one to handle stdin using readline, and the other one to handle blocking reads on sockets. You can drop into C from both threads when input arrives. I hope this helps, -russ -- ATTENTION, all abducting aliens! you DON'T need to RETURN them! --Erik Naggum, on comp.lang.lisp