I would ask a very generic question that has been perplexing me for some time. Very, very often we have to wait for the results from non-blocking functions, for example bytes to read from a file, sock...

How does the following execution possible: int set_result = fcntl(fd, F_SETFD, O_NONBLOCK); // set_result: 0 int get_result = fcntl(fd, F_GETFD); // get_result: 0 For some reason fcntl c...

Even after a lot of reading I cannot seem to understand how non-blocking IO actually works at the OS level. If a thread is the most granular unit to an OS scheduler, ie. any work that must be done mus...

With the new PR https://github.com/ged/ruby-pg/pull/397 in ruby-pg, it seems that we could use non-blocking methods with async gems in Ruby 3.0. Could we have one example to show the non-blocking way?...