From c307523565e0a8815bfd0d7deeed8b9ae7796e16 Mon Sep 17 00:00:00 2001
From: kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 12 Jul 2011 05:08:28 +0000
Subject: [PATCH] * signal.c (install_sighandler): fixed a race.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32524 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 4 ++++
 signal.c  | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index b17b133f7c..bb7a132b20 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Jul 12 14:07:46 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* signal.c (install_sighandler): fixed a race.
+
 Tue Jul 12 13:49:32 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
 	* signal.c (sig_trap): don't permit to change a signal handler which
diff --git a/signal.c b/signal.c
index 7490de9f82..d98aa03b53 100644
--- a/signal.c
+++ b/signal.c
@@ -1008,10 +1008,12 @@ install_sighandler(int signum, sighandler_t handler)
 {
     sighandler_t old;
 
+    rb_disable_interrupt();
     old = ruby_signal(signum, handler);
     if (old != SIG_DFL) {
 	ruby_signal(signum, old);
     }
+    rb_enable_interrupt();
 }
 
 #if defined(SIGCLD) || defined(SIGCHLD)