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:
Jun. 24, 2014
Filed:
Mar. 21, 2012
Applicant:
George B. Leeman, Jr., Ridgefield, CT (US);
Inventor:
George B. Leeman, Jr., Ridgefield, CT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of detecting deadlock in a multithreading program is provided. An invocation graph is constructed having a single root and a plurality of nodes corresponding to one or more functions written in code of the multithreading program. A resource graph is computed in accordance with one or more resource sets in effect at each node of the invocation graph. It is determined whether cycles exist between two or more nodes of the resource graph. A cycle is an indication of deadlock in the multithreading program.