Method and apparatus for thread-safe handlers for checkpoints and restarts
US7337444B2 · kind B2 · utility
11Cited by
14References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2003 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Oct 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/524
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and computer instructions for executing a handler in a multi-threaded process handling a number of threads in a manner that avoids deadlocks. A value equal to the number of threads executing in the data processing system is set. The value is decremented each time a lock count for a thread within the number of threads is zero. A thread within the number of threads is suspended if the thread requests a lock and has a lock count of zero. A procedure, such as a handler, is executed in response to all of the threads within the number of threads having no locks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.