Coupled lock allocation and lookup for shared data synchronization in symmetric multithreading environments
US8868849B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 29, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Oct 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/544
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a shared memory process different threads may attempt to access a shared data variable in a shared memory. Locks are provided to synchronize access to shared data variables. Each lock is allocated to have a location in the shared memory relative to the instance of shared data that the lock protects. A lock may be allocated to be adjacent to the data that it protects. Lock resolution is facilitated because the memory location of a lock can be determined from an offset with respect to the data variable that is being protected by the lock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.