Merge pull request #4928
affff94
blockchain: fix race between two external mining threads (moneromooo-monero)
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commit
6d3caaff70
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@ -1269,7 +1269,9 @@ bool Blockchain::create_block_template(block& b, const account_public_address& m
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uint64_t already_generated_coins;
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uint64_t pool_cookie;
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CRITICAL_REGION_BEGIN(m_blockchain_lock);
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m_tx_pool.lock();
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const auto unlock_guard = epee::misc_utils::create_scope_leave_handler([&]() { m_tx_pool.unlock(); });
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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height = m_db->height();
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if (m_btc_valid) {
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// The pool cookie is atomic. The lack of locking is OK, as if it changes
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@ -1305,8 +1307,6 @@ bool Blockchain::create_block_template(block& b, const account_public_address& m
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median_weight = m_current_block_cumul_weight_limit / 2;
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already_generated_coins = m_db->get_block_already_generated_coins(height - 1);
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CRITICAL_REGION_END();
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size_t txs_weight;
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uint64_t fee;
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if (!m_tx_pool.fill_block_template(b, median_weight, already_generated_coins, txs_weight, fee, expected_reward, m_hardfork->get_current_version()))
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@ -1317,7 +1317,6 @@ bool Blockchain::create_block_template(block& b, const account_public_address& m
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#if defined(DEBUG_CREATE_BLOCK_TEMPLATE)
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size_t real_txs_weight = 0;
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uint64_t real_fee = 0;
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CRITICAL_REGION_BEGIN(m_tx_pool.m_transactions_lock);
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for(crypto::hash &cur_hash: b.tx_hashes)
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{
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auto cur_res = m_tx_pool.m_transactions.find(cur_hash);
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@ -1361,7 +1360,6 @@ bool Blockchain::create_block_template(block& b, const account_public_address& m
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{
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LOG_ERROR("Creating block template: error: wrongly calculated fee");
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}
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CRITICAL_REGION_END();
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MDEBUG("Creating block template: height " << height <<
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", median weight " << median_weight <<
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", already generated coins " << already_generated_coins <<
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