Method findNextUndo

src/jrd/tra.cpp:3928–3955

}

Record* jrd_tra::findNextUndo(VerbAction* stopAction, jrd_rel* relation, SINT64 number)
/**************************************
 *
 *	f i n d N e x t U n d o
 *
 **************************************
 *
 * Functional description
 *	For given record find next undo data in stack of savepoint (if any).
 *
 **************************************/
{
	UndoItem* result = NULL;

	for (Savepoint::Iterator iter(tra_save_point); *iter; ++iter)
	{
		VerbAction* const action = (*iter)->getAction(relation);

		if (action == stopAction)
			return result ? result->setupRecord(this) : NULL;

		if (action && action->vct_undo && action->vct_undo->locate(number))
			result = &(action->vct_undo->current());
	}

	fb_assert(false);	// verb_action disappeared from savepoint stack
	return NULL;
}

void jrd_tra::listStayingUndo(jrd_rel* relation, SINT64 number, RecordStack &staying)
/**************************************