Issue #20306 has been updated by kjtsanaktsidis (KJ Tsanaktsidis). Oh I didn’t realise that - leveraging ruby_vm_at_exit makes complete sense then. Big +1 from me on this proposal! ---------------------------------------- Feature #20306: Add rb_free_at_exit_p https://bugs.ruby-lang.org/issues/20306#change-107143 * Author: peterzhu2118 (Peter Zhu) * Status: Open ---------------------------------------- GitHub PR: https://github.com/ruby/ruby/pull/10104 From ticket [#20290](https://bugs.ruby-lang.org/issues/20290#note-6), I found that C extensions could use ruby_vm_at_exit to register hooks to free memory at shutdown. However, they cannot determine whether they should free all memory during shutdown to mirror the behavior of Ruby when RUBY_FREE_AT_EXIT is set. This ticket proposes a new API called rb_free_at_exit_p that returns true when RUBY_FREE_AT_EXIT is set, and false otherwise. -- https://bugs.ruby-lang.org/