void popdown()
{
int i, j;
char *pp;
char buf[2]={0};
#if (NMOD_X86EMU_INT10 > 0)||(NMOD_X86EMU > 0)
for (i=POP_Y; i<POP_Y + POP_H; i++) {
for (j=POP_X; j<POP_X + POP_W; j++) {
pp = (char *)(SCREEN_ADR + (i * 160) + (j * 2));
*pp = save[0][i-POP_Y][j-POP_X]; /* Restore screen */
set_scrn_buf(i, j, save[0][i-POP_Y][j-POP_X]);
pp++;
*pp = save[1][i-POP_Y][j-POP_X]; /* Restore color */
}
}
#elif NMOD_FRAMEBUFFER > 0
video_set_bg(0, 0, 128);
for (i=POP_Y; i<POP_Y + POP_H; i++) {
for (j=POP_X; j<POP_X + POP_W; j++) {
buf[0] = video_get_console_char(j, i);
set_scrn_buf(i, j, buf[0]);
video_console_print(j, i, buf);
}
}
#endif
tty_print_region(POP_Y, POP_X, POP_Y+POP_H, POP_X+POP_W);
#if NMOD_FRAMEBUFFER >0
begin_record();
#endif
}
BinaryInputStream&
BinaryInputStream::read_record(Numeric::float64* data, int nbr) {
begin_record();
read_array(data, nbr);
end_record();
return *this;
}
BinaryOutputStream& BinaryOutputStream::write_record(
Numeric::float64* data, int nbr
) {
begin_record();
write_array(data, nbr);
end_record();
return *this;
}
void SimpleCheckpoint::DoCheckpoint() {
// TODO split checkpoint file into multiple files in the future
// Create a new file for checkpoint
CreateFile();
auto &log_manager = LogManager::GetInstance();
if (logger_ == nullptr) {
logger_.reset(BackendLogger::GetBackendLogger(LOGGING_TYPE_NVM_WAL));
}
start_commit_id_ = log_manager.GetGlobalMaxFlushedCommitId();
if (start_commit_id_ == INVALID_CID) {
auto &txn_manager = concurrency::TransactionManagerFactory::GetInstance();
start_commit_id_ = txn_manager.GetMaxCommittedCid();
}
LOG_TRACE("DoCheckpoint cid = %lu", start_commit_id_);
// Add txn begin record
std::shared_ptr<LogRecord> begin_record(new TransactionRecord(
LOGRECORD_TYPE_TRANSACTION_BEGIN, start_commit_id_));
CopySerializeOutput begin_output_buffer;
begin_record->Serialize(begin_output_buffer);
records_.push_back(begin_record);
auto &catalog_manager = catalog::Manager::GetInstance();
auto database_count = catalog_manager.GetDatabaseCount();
// loop all databases
for (oid_t database_idx = 0; database_idx < database_count; database_idx++) {
auto database = catalog_manager.GetDatabase(database_idx);
auto table_count = database->GetTableCount();
auto database_oid = database->GetOid();
// loop all tables
for (oid_t table_idx = 0; table_idx < table_count; table_idx++) {
// Get the target table
storage::DataTable *target_table = database->GetTable(table_idx);
PL_ASSERT(target_table);
LOG_TRACE("SeqScan: database idx %u table idx %u: %s", database_idx,
table_idx, target_table->GetName().c_str());
Scan(target_table, database_oid);
}
}
// Add txn commit record
std::shared_ptr<LogRecord> commit_record(new TransactionRecord(
LOGRECORD_TYPE_TRANSACTION_COMMIT, start_commit_id_));
CopySerializeOutput commit_output_buffer;
commit_record->Serialize(commit_output_buffer);
records_.push_back(commit_record);
// TODO Add delimiter record for checkpoint recovery as well
Persist();
Cleanup();
most_recent_checkpoint_cid = start_commit_id_;
}