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:
Feb. 11, 2003
Filed:
Oct. 31, 1996
Rodolfo Augusto Mancisidor, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A generic semaphore supporting semaphore operations from multiple operating systems concurrently. Operating system semaphore invocations are transformed into a generic semaphore API that enables implementation of the semaphores. The generic API enables modification to the semaphore value depending upon the current semaphore value, and enables the queuing of threads to enable waiting upon semaphore operations. The semaphore operations implement synchronization of resource access and synchronization of process or thread execution. The generic semaphore enables applications for specific operating system personalities to execute on a microkernel system without modification of the application semaphore logic. This enables application programmers to code applications using known semaphore operations without regard to their final execution location.