Semaphores in distributed computing environments
US9553951B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2013 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/125
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for a semaphore mechanism in a distributed computing environment are disclosed. A state manager coordinating accesses to objects from distributed clients implements programmatic interfaces for semaphore operations. A client process submits a permit record directed to a semaphore instance protecting a shared resource. The client process receives a representation of permit records associated with the resource. The permit records provide an indication of an order in which permit requests for the resource were processed. The client process uses the permit records to determine whether it has been granted a permit, and if it determines that the permit has been granted, performs operations on the resource.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.