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. 26, 2013
Filed:
Sep. 03, 2009
Tatsushi Inagaki, Kanagawa-ken, JP;
Takuya Nakaike, Kanagawa-ken, JP;
Takeshi Ogasawara, Tokyo, JP;
Toshio Suganuma, Kanagawa-ken, JP;
Tatsushi Inagaki, Kanagawa-ken, JP;
Takuya Nakaike, Kanagawa-ken, JP;
Takeshi Ogasawara, Tokyo, JP;
Toshio Suganuma, Kanagawa-ken, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of allowing exclusive access to shared data by a computing device and a computer readable article embodying instructions for executing the method. The method includes: reading from a storage unit into a memory a program including a code for execution in a critical section and an instruction to write a value into or read a value from a shared data area in the memory; acquiring a lock on the critical section before start of a first instruction in the critical section; writing a value into a thread-local area in the memory in response to an instruction to write the value into the shared data area; writing into the shared data area the value written into the thread-local area upon completion of a final instruction in the critical section; and releasing the lock on the critical section, thereby allowing exclusive access to shared data.