From d61b2f33861eacdc0f9d343d38522fd91c1b7e72 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Thu, 26 Aug 2010 15:09:58 -0400
Subject: [PATCH] Fix an issue with forking and signal socketpairs in
 select/poll backends

Nicholas Marriott identifies an issue where a signal socketpair
doesn't get recreated if the event backend doesn't set event_reinit.

See bug 3048812

There may be a similar issue with respect to th_notify_fd
---
 event.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/event.c b/event.c
index e18b3b97..dbf1c2f3 100644
--- a/event.c
+++ b/event.c
@@ -747,9 +747,16 @@ event_reinit(struct event_base *base)
 
 	evsel = base->evsel;
 
+#if 0
+	/* Right now, reinit always takes effect, since even if the
+	   backend doesn't require it, the signal socketpair code does.
+
+	   XXX
+	 */
 	/* check if this event mechanism requires reinit */
 	if (!evsel->need_reinit)
 		goto done;
+#endif
 
 	/* prevent internal delete */
 	if (base->sig.ev_signal_added) {