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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/02/08 02:12:13 UTC

[GitHub] [arrow] cyb70289 commented on a change in pull request #12358: ARROW-15593: [C++] Make after-fork ThreadPool reinitialization thread-safe

cyb70289 commented on a change in pull request #12358:
URL: https://github.com/apache/arrow/pull/12358#discussion_r801211213



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File path: cpp/src/arrow/util/thread_pool.h
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@@ -373,7 +377,7 @@ class ARROW_EXPORT ThreadPool : public Executor {
   State* state_;
   bool shutdown_on_destroy_;
 #ifndef _WIN32
-  pid_t pid_;
+  std::atomic<pid_t> pid_;

Review comment:
       But the first load (line 239) may have data race with the store (line 256)?




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