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:
May. 17, 2016
Filed:
Jan. 21, 2011
Applicant:
Raymond Richardson, Richmond, CA (US);
Inventor:
Raymond Richardson, Richmond, CA (US);
Assignee:
WIND RIVER SYSTEMS, INC., Alameda, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/46 (2006.01); G06F 9/52 (2006.01); G06F 9/30 (2006.01);
U.S. Cl.
CPC ...
G06F 9/526 (2013.01); G06F 9/30087 (2013.01); G06F 9/52 (2013.01); G06F 9/522 (2013.01); G06F 9/528 (2013.01);
Abstract
A method for an acquisition of a semaphore for a thread includes decrementing a semaphore count, storing a current thread context of the semaphore when the semaphore count is less than a first predetermined value, determining a release count of a pending queue associated with the semaphore where the pending queue indicates unpended threads of the semaphore, and adding the thread to the pending queue when the release count is less than a second predetermined value.