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:
Aug. 05, 2014
Filed:
Sep. 14, 2012
Applicant:
David J. Hiniker, Seattle, WA (US);
Inventor:
David J. Hiniker, Seattle, WA (US);
Assignee:
Microsoft Corporation, Redmond, WA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/45 (2006.01); G06F 9/44 (2006.01); G06F 9/455 (2006.01);
U.S. Cl.
CPC ...
G06F 8/41 (2013.01); G06F 8/433 (2013.01); G06F 9/45516 (2013.01); G06F 8/71 (2013.01);
Abstract
A multi level virtual function table uses a hierarchy of chunks or segments of virtual function tables to identify methods for a particular class. At least one level of indirection pointers may point to individual virtual function table chunks, which may be shared by multiple classes. In some embodiments, fixed size chunks of virtual function tables may be used, other embodiments may use variable sized chunks of virtual function tables. In just in time compiled code, virtual function tables may be limited to sharing across parent and child classes, while in pre-compiled code, more complex sharing may be used.