Function verb_post

src/jrd/vio.cpp:7002–7053

static void verb_post(thread_db* tdbb,
					  jrd_tra* transaction,
					  record_param* rpb,
					  Record* old_data)
{
/**************************************
 *
 *	v e r b _ p o s t
 *
 **************************************
 *
 * Functional description
 *	Post a record update under verb control to a transaction.
 *	If the previous version of the record was created by
 *	this transaction in a different verb, save the data as well.
 *
 * Input:
 *  rpb:		New content of the record
 *	old_data:	Only supplied if an in-place operation was performed
 *				(i.e. update_in_place).
 *
 **************************************/
	SET_TDBB(tdbb);

	VerbAction* const action = transaction->tra_save_point->createAction(rpb->rpb_relation);

	if (!RecordBitmap::test(action->vct_records, rpb->rpb_number.getValue()))
	{
		RBM_SET(transaction->tra_pool, &action->vct_records, rpb->rpb_number.getValue());

		if (old_data)
		{
			// An update-in-place is being posted to this savepoint, and this
			// savepoint hasn't seen this record before.

			if (!action->vct_undo)
			{
				action->vct_undo =
					FB_NEW_POOL(*transaction->tra_pool) UndoItemTree(*transaction->tra_pool);
			}

			action->vct_undo->add(UndoItem(transaction, rpb->rpb_number, old_data));
		}
	}
	else if (old_data)
	{
		// Double update us posting. The old_data will not be used,
		// so make sure we garbage collect before we lose track of the
		// in-place-updated record.
		action->garbageCollectIdxLite(tdbb, transaction, rpb->rpb_number.getValue(), action, old_data);
	}
}