From 4ef4f2bdc5e84e9699f91a845302e9c560c0ac02 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Tue, 14 Oct 2014 03:46:12 +0200
Subject: [PATCH] Protect against re-entrance(#954)

This is a safety guard and should never be activated.
---
 src/proc/play/output-director.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/proc/play/output-director.cpp b/src/proc/play/output-director.cpp
index e74489850..f9fd3ea30 100644
--- a/src/proc/play/output-director.cpp
+++ b/src/proc/play/output-director.cpp
@@ -110,6 +110,13 @@ namespace play {
   {
     Lock sync(this);
     string problemLog;
+    if (!isOperational())
+      {
+        WARN (play, "Attempt to OutputDirector::bringDown() -- "
+                    "which it is not in running state. Invocation ignored. "
+                    "This indicates an error in Lifecycle logic.");
+        return;
+      }
     try
       {
         TODO ("actually bring down the output generation");