On Sun, Oct 11, 2020 at 04:51:09PM +0500, rustahm <[email protected]> wrote:
> Please find attached the source code. Could anyone explain why the callback
> is never invoked when I do change the files?
You probably never call ev's mainloop: you only call ev::run once with
NOWAIT, so unless any change happens before that call, libev code is never
invoked and therefore does not have a chance of calling your callback.
You would need to put something like ev_run (EV_A_ 0) into your main program
(which you haven't shown).
Also, ev::get_default_loop() (and .run) is internal undocumented
functionality which you should not call if you want your program to
continue to work with future versions.
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