std::set<storage::TileGroupHeader *> WriteBehindFrontendLogger::ToggleCommitMarks(
std::vector<txn_id_t> committed_txn_list) {
// Headers modified
std::set<storage::TileGroupHeader *> tile_group_headers;
// Toggle commit marks
for (txn_id_t txn_id : committed_txn_list) {
auto txn_log_list =
global_peloton_log_record_pool.SearchLogRecordList(txn_id);
if (txn_log_list == nullptr) {
continue;
}
for (size_t txn_log_list_itr = 0; txn_log_list_itr < txn_log_list->size();
txn_log_list_itr++) {
// Get the log record
TupleRecord *record = txn_log_list->at(txn_log_list_itr);
cid_t current_commit_id = INVALID_CID;
auto record_type = record->GetType();
switch (record_type) {
case LOGRECORD_TYPE_WBL_TUPLE_INSERT: {
// Set insert commit mark
auto insert_location = record->GetInsertLocation();
auto info = SetInsertCommitMark(insert_location);
current_commit_id = info.first;
tile_group_headers.insert(info.second);
} break;
case LOGRECORD_TYPE_WBL_TUPLE_DELETE: {
// Set delete commit mark
auto delete_location = record->GetDeleteLocation();
auto info = SetDeleteCommitMark(delete_location);
current_commit_id = info.first;
tile_group_headers.insert(info.second);
} break;
case LOGRECORD_TYPE_WBL_TUPLE_UPDATE: {
// Set delete commit mark
auto delete_location = record->GetDeleteLocation();
auto info = SetDeleteCommitMark(delete_location);
current_commit_id = info.first;
tile_group_headers.insert(info.second);
// Set insert commit mark
auto insert_location = record->GetInsertLocation();
info = SetInsertCommitMark(insert_location);
current_commit_id = info.first;
tile_group_headers.insert(info.second);
} break;
default:
break;
}
// Update latest commit id
if (latest_commit_id < current_commit_id) {
latest_commit_id = current_commit_id;
}
}
// TODO: All records are committed, its safe to remove them now
global_peloton_log_record_pool.RemoveTransactionLogList(txn_id);
}
return tile_group_headers;
}
