Data storage system ensuring consistency of data received by a producer from a collector via a shared memory
US12306823B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2023 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Jan 28, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/215
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Ensuring consistency of data being received by a producer from a collector via a shared memory includes maintaining a time-of-day (TOD) variable, and, by the producer for new data, (1) first setting the TOD variable to an invalid value, (2) next writing the new data into the shared memory with a timestamp, and (3) next setting the TOD variable to a time value corresponding to the timestamp. The method further includes, by the collector for the new data, (1) reading the TOD variable and timestamp and confirming that the TOD variable has a valid time value equal to the timestamp, (2) reading the new data from the shared memory, and (3) confirming validity of the new data by (a) reading the TOD variable again, and (b) confirming that the TOD variable has the same valid time value as in the reading step (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.