Process and apparatus for interrupting and restarting sequential list-processing operations
US4429360A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1980 |
| Grant date | Jan 31, 1984 |
| Priority date | — |
| Expiry date | Oct 29, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/461
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided to enable interruption of list processing operations in a computer system and to enable restart from the point of interruption. A mechanism, at a predetermined point of the list processing operation, operates to recognize occurrences of interrupting events. If any such events are present, a mechanism saves the status of the list processing operation, saves the identification of the task associated with instruction executing the list processing operation and locks the list or queue. After the interrupt is handled, a mechanism restores status, and unlocks the list or queue only when the identified task is active again and the instruction which had been executing the list processing operation is again executing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.