szaszm 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_r382080471
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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:
My guess would be that we need to use `Connectable::work_available_mutex_`
instead of `Processor::mutex_`.
I find it a very bad design decision to expose threading and signaling
primitives in `Connectable`. `isWorkAvailable()` should be a source object (of
"work") that can be checked for readiness and waited for. That would break an
important API, though, so just leaving it here.
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