westonpace commented on a change in pull request #11285:
URL: https://github.com/apache/arrow/pull/11285#discussion_r723663091
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File path: cpp/src/arrow/util/thread_pool.h
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@@ -341,6 +341,9 @@ class ARROW_EXPORT ThreadPool : public Executor {
// tasks are finished.
Status Shutdown(bool wait = true);
+
+ void WaitForIdle();
Review comment:
Yes, I will document that. ThreadPool is internal (and I'm not
proposing we add WaitForIdle to Executor) so I hope that is reasonable. CC
@pitrou for thoughts. For context: I added `WaitForIdle` to the `ThreadPool`
purely for the sake of sequencing some testing.
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