miner: fix race when stopping mining with start mining enabled
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4308a2e173
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@ -106,6 +106,7 @@ namespace cryptonote
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m_thread_index(0),
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m_phandler(phandler),
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m_height(0),
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m_threads_active(0),
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m_pausers_count(0),
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m_threads_total(0),
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m_starter_nonce(0),
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@ -264,8 +265,8 @@ namespace cryptonote
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{
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CRITICAL_REGION_LOCAL(m_threads_lock);
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boost::interprocess::ipcdetail::atomic_write32(&m_stop, 1);
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for(boost::thread& th: m_threads)
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th.join();
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while (m_threads_active > 0)
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misc_utils::sleep_no_w(100);
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m_threads.clear();
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}
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boost::interprocess::ipcdetail::atomic_write32(&m_stop, 0);
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@ -447,10 +448,11 @@ namespace cryptonote
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// In case background mining was active and the miner threads are waiting
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// on the background miner to signal start.
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m_is_background_mining_started_cond.notify_all();
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for(boost::thread& th: m_threads)
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th.join();
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while (m_threads_active > 0)
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{
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m_is_background_mining_started_cond.notify_all();
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misc_utils::sleep_no_w(100);
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}
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// The background mining thread could be sleeping for a long time, so we
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// interrupt it just in case
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@ -589,6 +591,7 @@ namespace cryptonote
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}
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slow_hash_free_state();
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MGINFO("Miner thread stopped ["<< th_local_index << "]");
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--m_threads_active;
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return true;
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}
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//-----------------------------------------------------------------------------------------------------
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@ -125,6 +125,7 @@ namespace cryptonote
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uint64_t m_height;
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volatile uint32_t m_thread_index;
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volatile uint32_t m_threads_total;
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std::atomic<uint32_t> m_threads_active;
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std::atomic<int32_t> m_pausers_count;
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epee::critical_section m_miners_count_lock;
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