Method and system for determining copy-on-write condition
US5182805A · kind A · utility
31Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1989 |
| Grant date | Jan 26, 1993 |
| Priority date | — |
| Expiry date | Jul 14, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for determining a copy-on-write condition in a UNIX process which includes providing a page table with an entry identifying a memory page location, and providing the entry with a copy-on-write bit. The bit is transferred to a circuit for processing and, if the memory page is to be written to and the copy-on-write bit is set, a copy-on-write fault is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.