Lock free acquisition and release of a semaphore in a multi-core processor environment

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United States of America Patent

PATENT NO 9342379
APP PUB NO 20120192194A1
SERIAL NO

13011116

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
WIND RIVER SYSTEMS INC500 WIND RIVER WAY ALAMEDA CA 94501

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Richardson, Raymond Richmond, US 11 53

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