szaszm commented on code in PR #1676:
URL: https://github.com/apache/nifi-minifi-cpp/pull/1676#discussion_r1354270590


##########
libminifi/include/core/logging/internal/LogCompressorSink.h:
##########
@@ -54,7 +48,7 @@ class LogCompressorSink : public 
spdlog::sinks::base_sink<std::mutex> {
   void flush_() override;
 
  public:
-  explicit LogCompressorSink(LogQueueSize cache_size, LogQueueSize 
compressed_size, std::shared_ptr<logging::Logger> logger);
+  LogCompressorSink(LogQueueSize cache_size, LogQueueSize compressed_size, 
const std::shared_ptr<logging::Logger>& logger);

Review Comment:
   I don't think passing shared_ptrs by const ref is normally a good idea. If 
it takes ownership (like in this case), passing by value (and move to data 
member in this case) is probably best. If it's observer only, then passing a 
raw pointer or reference usually works better. Am I missing an important detail?
   
   Also, is there any reason to remove explicit? I don't have strong 
preferences either way for constructors with multiple parameters, I just don't 
understand why it's changed.
   



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