Hi!
from the information given in the manpage I would expect that
ev_default_destroy() "cleans" up the default event loop in such a way it can be
reinitialized and behaves as if it was never used (as long as there were no
active signal/child watchers and you don't care about the watchers that were
active before the call).
In other words, I would expect a small program like this one to return
immediately:
int
main(int argc, char **argv)
{
ev_timer timer;
ev_timer_init(&timer, timer_cb, 10., 0.);
ev_timer_start(EV_DEFAULT_ &timer);
ev_default_destroy();
ev_loop(EV_DEFAULT_ 0);
return 0;
}
however it doesn't - it blocks indefinitely. Of course I can stop the watcher
and everthing's fine. I just wanted to know whether ev_default_destroy() is
supposed to work that way and if not exactly under which circumstances it can
be useful.
I was tempted to use it once in a program where the default loop definitely
makes sense (synchronizing signals without asyncs etc), at some point forks and
has to clean up the default loop in the new process to allow some scripts to
work with it (no execve either). I ended up stopping all watchers & resetting
the still-messed-up signal handlers manually after invoking ev_default_fork().
cheers,
Robin Haberkorn
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