Avoiding unwanted side-effects in the updating of transient data
US6920467B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1996 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Sep 25, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information processing apparatus includes memory for storing a plurality of data; updating means for updating data stored in the memory in a transaction; and setting means for setting, with regard to each of the plurality of data stored in the memory, whether updated data updated by the updating means is to be validated or invalidated at abortion of the transaction, respectively. The setting means performs its setting in advance of the transaction. Saving means saves data, for which updated data has been set to be invalidated at abortion of the transaction by the setting means, except for data for which updated data has been set to be validated at abortion of the transaction by the setting means, before execution of data update by the updating means in the transaction. Control means invalidates the updated data set to be invalidated by restoring the data saved the saving means and validates the updated data set to be validated by maintaining the updated data for which data before execution of updating has not been saved at an end of the transaction if the transaction has been aborted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.