Cancellation mechanism for cooperative systems
US7607142B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2005 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Apr 14, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/548
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Object invocation may be carried out by one thread in a service which may include multiple executing threads. In a mechanism for implementing a cancellation operation in a cooperative system, a thread identifies an operation to be cancelled. A cancel function has an argument comprising the thread identifier in which the operation is to be cancelled. The cancel function is called by a client process thread to cancel a pending object invocation initiated by the client process. An immediate or hard cancel causes the targeted client and cancel thread to return immediately. A discretionary or soft cancel does not affect the targeted client thread. In either case the server process is notified via a maintenance notification. The target thread of the cancel cannot be reused for other work until the cancel request or notification has returned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.