Emanuel Berg <embe8573@student.uu.se> writes:
> I have written a program [1] in C++ that uses polling,
> but I was told that wasn't good enough so now I search
> for a "preemptive" or interrupt-based solution.
To block on accesses to a file until it actually has data for you try
reading up on the `select` call:
% man 2 select
--
Devrin Talen <dct23@cornell.edu>