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:
Apr. 13, 2010
Filed:
Jul. 30, 2004
Marianne C. Lent, Santa Clara, CA (US);
Charles H. Silvers, Santa Clara, CA (US);
Marianne C. Lent, Santa Clara, CA (US);
Charles H. Silvers, Santa Clara, CA (US);
Symantec Operating Corporation, Mountain View, CA (US);
Abstract
Methods, systems, and apparatus can provide a means for a user-level process to acquire locks on resources at the kernel level through the use of a session that persists after the termination of the user-level process. A session recovery mechanism can be provided so that a newly started process can query an existing kernel-level lock session to discover which locks were held by a previously terminated process. This is accomplished, in part, through associating the kernel session with a token, rather than by associating the locks with a user-level process ID. Such a mechanism provides the ability for the new process to perform appropriate lock cleanup or to continue the work of the previous process under protection of the surviving locks.