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HPCC-29923 Avoid CRowServer cancel if not running #17573

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merged 1 commit into from
Jul 13, 2023
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HPCC-29923 Avoid CRowServer cancel if not running #17573

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5 changes: 3 additions & 2 deletions thorlcr/thorutil/thormisc.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1364,8 +1364,9 @@ class CRowServer : public CSimpleInterface, implements IThreaded, implements IRo
#ifdef TRACE_GLOBAL_GROUP
ActPrintLog(activity, "%s", __func__);
#endif
running = false;
comm.cancel(RANK_ALL, mpTag);
bool wanted = true;
if (running.compare_exchange_strong(wanted, false))
comm.cancel(RANK_ALL, mpTag);
}
};

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