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:
Sep. 11, 2001
Filed:
Jul. 18, 1996
Method and system for maintaining consistency of shared objects based upon instance variable locking
Applicant:
Inventor:
Fred A. Cummins, Farmington Hills, MI (US);
Assignee:
Electronic Data Systems Corporation, Plano, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/200 ; G06F 1/214 ; G06F 1/216 ;
U.S. Cl.
CPC ...
G06F 1/200 ; G06F 1/214 ; G06F 1/216 ;
Abstract
The invention comprises a method and system for maintaining the integrity of shared objects based upon instance variable locking. In accordance with the method of the invention, a locking tag is attached to an instance variable, indicating that the instance variable was read by a first process. Reads of the instance variable by a second process are allowed while the first locking tag is present. A second locking tag is attached to the instance variable, indicating that the instance variable was read by the second process.