phrocker commented on a change in pull request #735: WIP: MINIFICPP-1158 - 
Event driven processors can starve each other
URL: https://github.com/apache/nifi-minifi-cpp/pull/735#discussion_r382102534
 
 

 ##########
 File path: libminifi/src/core/Processor.cpp
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 @@ -268,6 +268,7 @@ void Processor::onTrigger(const 
std::shared_ptr<ProcessContext> &context, const
 
 bool Processor::isWorkAvailable() {
   // We have work if any incoming connection has work
+  std::lock_guard<std::mutex> lock(mutex_);
 
 Review comment:
   One of my hopes was that we could make some asks to Folly to use their 
thread pool(s)...I believe they've already filled those gaps and I think they 
have some useful containers. It would be a massive undertaking but Folly has 
some nice utilities that are well tested. 

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