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Update and relocate comment that applies class wide

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warptangent 2015-03-03 13:09:49 -08:00
parent eee3ee7073
commit acb5d291b8
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1 changed files with 14 additions and 8 deletions
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22
src/blockchain_db/lmdb/db_lmdb.cpp
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@ -149,6 +149,20 @@ inline void lmdb_db_open(MDB_txn* txn, const char* name, int flags, MDB_dbi& dbi
namespace cryptonote namespace cryptonote
{ {
// If m_batch_active is set, a batch transaction exists beyond this class, such
// as a batch import with verification enabled, or possibly (later) a batch
// network sync.
//
// For some of the lookup methods, such as get_block_timestamp(), tx_exists(),
// and get_tx(), when m_batch_active is set, the lookup uses the batch
// transaction. This isn't only because the transaction is available, but it's
// necessary so that lookups include the database updates only present in the
// current batch write.
//
// A regular network sync without batch writes is expected to open a new read
// transaction, as those lookups are part of the validation done prior to the
// write for block and tx data, so no write transaction is open at the time.
void BlockchainLMDB::add_block( const block& blk void BlockchainLMDB::add_block( const block& blk
, const size_t& block_size , const size_t& block_size
, const difficulty_type& cumulative_difficulty , const difficulty_type& cumulative_difficulty
@ -1260,14 +1274,6 @@ uint64_t BlockchainLMDB::get_tx_block_height(const crypto::hash& h) const
LOG_PRINT_L3("BlockchainLMDB::" << __func__); LOG_PRINT_L3("BlockchainLMDB::" << __func__);
check_open(); check_open();
// If m_batch_active is set, a batch transaction exists beyond this class,
// such as a batch import with verification enabled, or possibly (later) a
// batch network sync.
//
// A regular network sync without batching would be expected to open a new
// read transaction here, as validation is done prior to the write for block
// and tx data.
txn_safe txn; txn_safe txn;
txn_safe* txn_ptr = &txn; txn_safe* txn_ptr = &txn;
if (m_batch_active) if (m_batch_active)