nmathewson/Libevent — pull request #40 by gunoodaddy (2012-02-22 01:32:29+00:00)
Title: evhttp_request free callback feature added

I want to know whether evhttp_request pointer is freed.
So I added free_cb, free_cb_arg variable to struct evhttp_request.
free_cb will be called just before evhttp_request is freed. (evhttp_request_free function)