On Wednesday, 22 February 2017 at 05:28:17 UTC, Alex wrote:
[...]
In both gdc and dmd I need to use manually delete this object
or the program is blocked after main. Is by design ?
Yes, it's documented here[1] (others have already replied on the
GC subject, so I won't go into that). If you want a thread to be
forcibly terminated instead of preventing program termination you
need to set `thread.isDaemon = true`.
It seems undesirable, as the thread can be many layers of
encapsulation down, and they all need manual deletes.
It's highly desirable to not have the program terminate when
there's still work to be done on some critical non-main thread,
so the druntime split into daemon vs non-daemon threads makes
sense.
Whether new threads should be daemonized by default (as opposed
to preventing program termination by default) is an arbitrary
decision. In your case, just set `isDaemon = true` for your
threads and you should be good.
[1] https://dlang.org/phobos/core_thread.html#.Thread.isDaemon
