From: "Glass_saga (Masaki Matsushita)" Date: 2013-09-10T00:29:47+09:00 Subject: [ruby-core:57090] [ruby-trunk - Feature #8882][Open] rb_obj_is_mutex() into include/ruby/intern.h Issue #8882 has been reported by Glass_saga (Masaki Matsushita). ---------------------------------------- Feature #8882: rb_obj_is_mutex() into include/ruby/intern.h https://bugs.ruby-lang.org/issues/8882 Author: Glass_saga (Masaki Matsushita) Status: Open Priority: Normal Assignee: Category: Target version: current: 2.1.0 rb_obj_is_mutex() is currently an internal API function. However, this function is useful for C extension developers to distinguish between Mutex and other objects extended by Mutex_m. I want to use it in ext/thread/thread.c for this purpose. -- http://bugs.ruby-lang.org/