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BlockchainDB/LMDB/BDB: Extract DB txn functions for block add/remove

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warptangent 2016-02-08 08:32:19 -08:00
parent f47d5b0fe3
commit f3a6000094
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5 changed files with 65 additions and 0 deletions
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38
src/blockchain_db/lmdb/db_lmdb.cpp
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@ -2190,6 +2190,44 @@ void BlockchainLMDB::set_batch_transactions(bool batch_transactions)
LOG_PRINT_L3("batch transactions " << (m_batch_transactions ? "enabled" : "disabled"));
}
void BlockchainLMDB::block_txn_start()
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);
if (! m_batch_active && m_write_txn)
throw0(DB_ERROR((std::string("Attempted to start new write txn when write txn already exists in ")+__FUNCTION__).c_str()));
if (! m_batch_active)
{
m_write_txn = new mdb_txn_safe();
if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, *m_write_txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
}
void BlockchainLMDB::block_txn_stop()
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);
if (! m_batch_active)
{
TIME_MEASURE_START(time1);
m_write_txn->commit();
TIME_MEASURE_FINISH(time1);
time_commit1 += time1;
delete m_write_txn;
m_write_txn = NULL;
}
}
void BlockchainLMDB::block_txn_abort()
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);
if (! m_batch_active)
{
delete m_write_txn;
m_write_txn = NULL;
}
}
uint64_t BlockchainLMDB::add_block(const block& blk, const size_t& block_size, const difficulty_type& cumulative_difficulty, const uint64_t& coins_generated,
const std::vector<transaction>& txs)
{