Function VIO_modify

src/jrd/vio.cpp:3276–3768

}

bool VIO_modify(thread_db* tdbb, record_param* org_rpb, record_param* new_rpb, jrd_tra* transaction)
{
/**************************************
 *
 *	V I O _ m o d i f y
 *
 **************************************
 *
 * Functional description
 *	Modify an existing record.
 *
 **************************************/
	SET_TDBB(tdbb);

	MetaName object_name, package_name;
	jrd_rel* relation = org_rpb->rpb_relation;

#ifdef VIO_DEBUG
	VIO_trace(DEBUG_WRITES,
		"VIO_modify (rel_id %u, org_rpb %" QUADFORMAT"d, new_rpb %" QUADFORMAT"d, "
		"transaction %" SQUADFORMAT")\n",
		relation->rel_id, org_rpb->rpb_number.getValue(), new_rpb->rpb_number.getValue(),
		transaction ? transaction->tra_number : 0);

	VIO_trace(DEBUG_WRITES_INFO,
		"   old record  %" SLONGFORMAT":%d, rpb_trans %" SQUADFORMAT
		", flags %d, back %" SLONGFORMAT":%d, fragment %" SLONGFORMAT":%d\n",
		org_rpb->rpb_page, org_rpb->rpb_line, org_rpb->rpb_transaction_nr,
		org_rpb->rpb_flags, org_rpb->rpb_b_page, org_rpb->rpb_b_line,
		org_rpb->rpb_f_page, org_rpb->rpb_f_line);
#endif

	transaction->tra_flags |= TRA_write;
	new_rpb->rpb_transaction_nr = transaction->tra_number;
	new_rpb->rpb_flags = 0;
	new_rpb->getWindow(tdbb).win_flags = WIN_secondary;

	// If the stream was sorted, the various fields in the rpb are
	// probably junk.  Just to make sure that everything is cool,
	// refetch and release the record.

	if (org_rpb->rpb_runtime_flags & (RPB_refetch | RPB_undo_read))
	{
		const bool undo_read = (org_rpb->rpb_runtime_flags & RPB_undo_read);
		AutoTempRecord old_record;
		if (undo_read)
		{
			old_record = VIO_gc_record(tdbb, relation);
			old_record->copyFrom(org_rpb->rpb_record);
		}

		VIO_refetch_record(tdbb, org_rpb, transaction, false, true);
		org_rpb->rpb_runtime_flags &= ~RPB_refetch;
		fb_assert(!(org_rpb->rpb_runtime_flags & RPB_undo_read));

		if (undo_read)
			refresh_changed_fields(tdbb, old_record, org_rpb, new_rpb);
	}