From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Thu, 21 Jan 2016 10:19:55 +0000 (+0100)
Subject: dnsdist: Lock the response ring in exceedRespGen()
X-Git-Tag: dnsdist-1.0.0-alpha2~42^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5d9f965083158f9fb854024d7fa464171ed4e074;p=pdns

dnsdist: Lock the response ring in exceedRespGen()

Hopefully this should fix #3277.
---

diff --git a/pdns/dnsdist-lua2.cc b/pdns/dnsdist-lua2.cc
index 0172032cc..3c2c06f0d 100644
--- a/pdns/dnsdist-lua2.cc
+++ b/pdns/dnsdist-lua2.cc
@@ -61,7 +61,8 @@ map<ComboAddress,int> exceedRespGen(int rate, int seconds, std::function<void(co
   clock_gettime(CLOCK_MONOTONIC, &now);
   cutoff = mintime = now;
   cutoff.tv_sec -= seconds;
-  
+
+  std::lock_guard<std::mutex> lock(g_rings.respMutex);
   for(const auto& c : g_rings.respRing) {
     if(seconds && c.when < cutoff)
       continue;