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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/02/07 08:58:35 UTC

[GitHub] [arrow] cyb70289 commented on a change in pull request #12350: ARROW-15593: [C++] fixes a race condition in the thread pool

cyb70289 commented on a change in pull request #12350:
URL: https://github.com/apache/arrow/pull/12350#discussion_r800435584



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File path: cpp/src/arrow/util/thread_pool.h
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@@ -373,7 +374,7 @@ class ARROW_EXPORT ThreadPool : public Executor {
   State* state_;
   bool shutdown_on_destroy_;
 #ifndef _WIN32
-  pid_t pid_;
+  std::atomic<pid_t> pid_;

Review comment:
       This gives an uninitialized random value.
   Zero initialize with `std::atomic<pid_t> pid_{}`.




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