zanmato1984 commented on code in PR #45421:
URL: https://github.com/apache/arrow/pull/45421#discussion_r1979736056


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cpp/src/arrow/acero/concurrent_queue_internal.h:
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@@ -35,7 +36,12 @@ class ConcurrentQueue {
   //
   T Pop() {

Review Comment:
   Well, my suggestion of removing `Pop` is solely because it is not called 
anywhere (or in other words, replaced by `WaitAndPop`), not that it is 
"unsafe". And this reason doesn't apply to `Front`, so I wouldn't suggest 
removing it considering it is being widely used.



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