From dd6a9a923d8bda5363c50d5ea7fd8ea403e895cd Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Fri, 19 Aug 2011 17:07:54 -0400
Subject: [PATCH] Disable run-time changes to DisableIOCP: They do not work

---
 src/or/config.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/or/config.c b/src/or/config.c
index 716d83ab0d..dbc355d728 100644
--- a/src/or/config.c
+++ b/src/or/config.c
@@ -3966,6 +3966,12 @@ options_transition_allowed(const or_options_t *old,
     return -1;
   }
 
+  if (old->DisableIOCP != new_val->DisableIOCP) {
+    *msg = tor_strdup("While Tor is running, changing DisableIOCP "
+                      "is not allowed.");
+    return -1;
+  }
+
   return 0;
 }