From a362d4c48fb2b218c213d841bebcd325c6dfee4b Mon Sep 17 00:00:00 2001
From: david <david@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Sat, 5 Mar 2011 21:16:09 +0000
Subject: [PATCH] Fix condvar("signal") when there is nothing waiting on the
 condvar. The logic was   while (unsigned >= 0) which is an infinite loop.

---
 nse_nmaplib.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nse_nmaplib.cc b/nse_nmaplib.cc
index 41be93cc6..a274933d7 100644
--- a/nse_nmaplib.cc
+++ b/nse_nmaplib.cc
@@ -321,6 +321,8 @@ static int aux_condvar (lua_State *L)
       return nse_yield(L, 0, NULL);
     case SIGNAL:
       n = lua_objlen(L, lua_upvalueindex(1));
+      if (n == 0)
+        n = 1;
       break;
     case BROADCAST:
       n = 1;