yield pre-close (#592)

Author: mensfeld

CHANGELOG.md

@@ -5,6 +5,7 @@
 - [Enhancement] Support producing and consuming of headers with mulitple values (KIP-82).
 - [Enhancement] Allow native Kafka customization poll time.
 - [Enhancement] Roll out experimental jruby support.
+- [Fix] Fix issue where post-closed producer C topics refs would not be cleaned.
 
 ## 0.21.0 (2025-02-13)
 - [Enhancement] Bump librdkafka to `2.8.0`

lib/rdkafka/native_kafka.rb

@@ -126,6 +126,8 @@ def close(object_id=nil)
         # and would continue to run, trying to destroy inner twice
         return unless @inner
 
+        yield if block_given?
+
         Rdkafka::Bindings.rd_kafka_destroy(@inner)
         @inner = nil
         @opaque = nil