emkornfield commented on a change in pull request #7030:
URL: https://github.com/apache/arrow/pull/7030#discussion_r551609196
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File path: cpp/src/arrow/memory_pool.h
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@@ -149,6 +149,43 @@ class ARROW_EXPORT ProxyMemoryPool : public MemoryPool {
std::unique_ptr<ProxyMemoryPoolImpl> impl_;
};
+class ARROW_EXPORT ReservationListener {
Review comment:
documentation please.
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