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:
Oct. 13, 2009
Filed:
Apr. 12, 2005
Jeffrey M. Richter, Clyde Hill, WA (US);
Jason D. Clark, Bothell, WA (US);
Jeffrey M. Richter, Clyde Hill, WA (US);
Jason D. Clark, Bothell, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Thread usage is managed when locking resources during the possibly-contentious accessing of such resources. In a described implementation, a thread that is executing a corresponding access request is not suspended when its corresponding access request is delayed because a targeted resource is currently locked for accessing by another thread. Instead, when a targeted resource is locked, the blocked access request is queued up in a queue of access requests. The corresponding thread is then permitted to perform other work. When the resource is subsequently unlocked and thus becomes available, an access request (e.g., the oldest or highest priority access request) that is queued is retrieved, and a thread is allowed to execute it. Implementations for general locking access schemes, for read/write-bifurcated locking access schemes, etc. are described. Implementations are described from conceptual, functional, temporal, code or function, contention, thread, and other perspectives.