From 6816e8efcff3be75f8020cd1b0ea57d3cd664bbc Mon Sep 17 00:00:00 2001
From: Adam Hess <adamhess1991@gmail.com>
Date: Thu, 12 Oct 2023 11:15:53 -0700
Subject: Free everything at shutdown

when the RUBY_FREE_ON_SHUTDOWN environment variable is set, manually free memory at shutdown.

Co-authored-by: Nobuyoshi Nakada <nobu@ruby-lang.org>
Co-authored-by: Peter Zhu <peter@peterzhu.ca>
---
 ruby.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'ruby.c')

diff --git a/ruby.c b/ruby.c
index a161bcb3d6..db25e1bc33 100644
--- a/ruby.c
+++ b/ruby.c
@@ -1754,6 +1754,11 @@ ruby_opt_init(ruby_cmdline_options_t *opt)
                            "environment variables RUBY_GC_HEAP_%d_INIT_SLOTS");
     }
 
+    if (getenv("RUBY_FREE_ON_EXIT")) {
+        rb_warn("Free on exit is experimental and may be unstable");
+        rb_free_on_exit = true;
+    }
+
 #if USE_RJIT
     // rb_call_builtin_inits depends on RubyVM::RJIT.enabled?
     if (opt->rjit.on)
-- 
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