Are NIF resources meant to be destroyed immediately on GC?
Tue Nov 24 19:34:49 CET 2020
Thanks everyone for the replies, I have a couple of things to try out now.
On Tue, Nov 24, 2020 at 7:16 PM Sean Hinde <sean.hinde@REDACTED> wrote:
> On 23 Nov 2020, at 23:16, Sverker Eriksson <sverker.eriksson@REDACTED>
> Prior to OTP 22.0 resource destructors were called directly by the thread
> that happened to decrease the reference counter down to zero.
> From OTP 22.0 resource destructors are scheduled. This in order to ensure
> a stable known execution context for the destructor callback. So it may not
> have executed when erlang:garbage_collect returns, but will very soon
> (unless you have a very overloaded system or a bug preventing ref counter
> from reaching zero).
> /Sverker, Erlang/OTP
> This a really nice change. It opens the door to resource destructors being
> safe for closing external resources like database handles that might take a
> Super cool!
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