From: Azat Khuzhin <a3at.mail@gmail.com>
Date: Fri, 11 Mar 2016 10:55:41 +0000 (+0300)
Subject: be_sock: unfreeze buffers on fd changing
X-Git-Tag: release-2.1.6-beta~61
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=255525dd741df04f8497396b8035c5d2bdabd269;p=libevent

be_sock: unfreeze buffers on fd changing

Only bufferevent_sock have evbuffer_freeze()/evbuffer_unfreeze() & ctrl ops, so
we don't need to fix other bufferevents (be_pair doesn't have ctrl op).

Found during draining buffers in http layer, and hence 501-not-implemented
error in regress http/.. (with some custom hacking).
---

diff --git a/bufferevent_sock.c b/bufferevent_sock.c
index a2b381ac..5ffd2ab3 100644
--- a/bufferevent_sock.c
+++ b/bufferevent_sock.c
@@ -630,6 +630,9 @@ be_socket_setfd(struct bufferevent *bufev, evutil_socket_t fd)
 	event_del(&bufev->ev_read);
 	event_del(&bufev->ev_write);
 
+	evbuffer_unfreeze(bufev->input, 0);
+	evbuffer_unfreeze(bufev->output, 1);
+
 	event_assign(&bufev->ev_read, bufev->ev_base, fd,
 	    EV_READ|EV_PERSIST|EV_FINALIZE, bufferevent_readcb, bufev);
 	event_assign(&bufev->ev_write, bufev->ev_base, fd,