Segmented global area database
US7222117B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 2003 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Mar 30, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99944
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention relate to memory management methods and systems for object-oriented databases (OODB). In an embodiment, a database includes a plurality of memory-mapped file segments stored on at least one nonvolatile memory medium and not in main memory. An application program connects to the database. A fault handler associated with the database is registered with the operating system of the application program. The fault handler catches a segmentation fault that is issued for an object referenced by the application program and resident in the database. A file segment corresponding to the referenced object is found and mapped into main memory. The application program is restarted. Because data is transparently mapped into and out of the main memory without copying the data, objects may be read with near zero latency, and size restrictions on the database may be eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.