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BlockchainLMDB: Add batch transaction support to tx_exists()
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@ -1132,20 +1132,23 @@ bool BlockchainLMDB::tx_exists(const crypto::hash& h) const
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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check_open();
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if (m_batch_active)
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{
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LOG_PRINT_L0("WARNING: active batch transaction while creating a read-only txn in tx_exists()");
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}
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txn_safe txn;
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if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
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throw0(DB_ERROR("Failed to create a transaction for the db"));
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txn_safe* txn_ptr = &txn;
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if (m_batch_active)
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txn_ptr = m_write_txn;
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else
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{
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if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
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throw0(DB_ERROR("Failed to create a transaction for the db"));
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}
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MDB_val_copy<crypto::hash> key(h);
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MDB_val result;
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auto get_result = mdb_get(txn, m_txs, &key, &result);
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auto get_result = mdb_get(*txn_ptr, m_txs, &key, &result);
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if (get_result == MDB_NOTFOUND)
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{
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txn.commit();
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if (! m_batch_active)
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txn.commit();
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LOG_PRINT_L1("transaction with hash " << epee::string_tools::pod_to_hex(h) << " not found in db");
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return false;
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}
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