From 0469c6ed5e09fa1284934a2cfa08bcf82123be6f Mon Sep 17 00:00:00 2001
From: Aki Tuomi <cmouse@cmouse.fi>
Date: Mon, 5 Oct 2015 21:30:21 +0300
Subject: [PATCH] Exit gracefully if distributor-threads is less than 1

---
 pdns/distributor.hh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pdns/distributor.hh b/pdns/distributor.hh
index f431aabe5..02f668f7d 100644
--- a/pdns/distributor.hh
+++ b/pdns/distributor.hh
@@ -147,6 +147,11 @@ template<class Answer, class Question, class Backend>MultiThreadDistributor<Answ
     d_pipes.push_back({fds[0],fds[1]});
   }
   
+  if (n<1) {
+    L<<Logger::Error<<"Asked for less than 1 threads, nothing to do"<<endl;
+    exit(0);
+  }
+
   L<<Logger::Warning<<"About to create "<<n<<" backend threads for UDP"<<endl;
   for(int i=0;i<n;i++) {
     pthread_create(&tid,0,&makeThread,static_cast<void *>(this));
-- 
2.40.0