size_t WriteBehindFrontendLogger::WriteLogRecords(
std::vector<txn_id_t> committed_txn_list) {
size_t written_log_record_count = 0;
// Write out the log records of all the committed transactions to log file
for (txn_id_t txn_id : committed_txn_list) {
// Locate the transaction log list for this txn id
auto txn_log_list =
global_peloton_log_record_pool.SearchLogRecordList(txn_id);
if (txn_log_list == nullptr) {
continue;
}
written_log_record_count += txn_log_list->size();
// Write out all the records in the list
for (size_t txn_log_list_itr = 0; txn_log_list_itr < txn_log_list->size();
txn_log_list_itr++) {
// Write out the log record
TupleRecord *record = txn_log_list->at(txn_log_list_itr);
fwrite(record->GetMessage(), sizeof(char), record->GetMessageLength(),
log_file);
}
}
// No need to flush now, will flush later in WriteTxnLog
return written_log_record_count;
}
size_t WriteBehindFrontendLogger::WriteLogRecords(
std::vector<txn_id_t> committed_txn_list) {
size_t total_txn_log_records = 0;
// Write out the log records of all the committed transactions to log file
for (txn_id_t txn_id : committed_txn_list) {
// Locate the transaction log list for this txn id
auto exists_txn_log_list =
global_peloton_log_record_pool.ExistsTxnLogRecordList(txn_id);
if (exists_txn_log_list == false) {
continue;
}
auto &txn_log_record_list =
global_peloton_log_record_pool.txn_log_table[txn_id];
size_t txn_log_record_list_size = txn_log_record_list.size();
total_txn_log_records += txn_log_record_list_size;
// Write out all the records in the list
for (size_t txn_log_list_itr = 0;
txn_log_list_itr < txn_log_record_list_size; txn_log_list_itr++) {
TupleRecord *record = txn_log_record_list.at(txn_log_list_itr).get();
// Write out the log record
fwrite(record->GetMessage(), sizeof(char), record->GetMessageLength(),
log_file);
}
}
// No need to flush now, will flush later in WriteTxnLog
return total_txn_log_records;
}