The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Dec. 08, 2011
Kavana N. Bhat, Bangalore, IN;
Shajith Chandran, Bangalore, IN;
Sameer K. Sinha, Siwan, IN;
Muthulakshmi P. Srinivasan, Bangalore, IN;
Kavana N. Bhat, Bangalore, IN;
Shajith Chandran, Bangalore, IN;
Sameer K. Sinha, Siwan, IN;
Muthulakshmi P. Srinivasan, Bangalore, IN;
Lenovo Enterprise Solutions (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A computer-implemented method for lock-free use of a non-preemptive system resource by a preemptive thread, which may be interrupted. The method comprises registering a non-preemptive system resource and a first level reclaim handler for the non-preemptive system resource with the kernel of an operating system, registering a second level reclaim handler with the kernel, wherein the second level reclaim handler is included in an application program, and running the application program as a preemptive thread using the non-preemptive system resource. The first level reclaim handler is code that is a part of the implementation of the non-preemptive system resource in the kernel. The second level reclaim handler is code that is part of the application and is registered with the kernel before the application uses the non-preemptive system resource. The method enables a preemptive thread using a non-preemptive system resource to be preempted without crashing.