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:
Aug. 26, 2003
Filed:
Sep. 13, 2000
Mark W. Bradley, Boulder, CO (US);
Radiant Data Corporation, Niwot, CO (US);
Abstract
Methods for sharing a file while maintaining consistency among instances of the file managed by a file system are disclosed. One exemplary method includes associating a file consistency protocol with an operating system (O/S). The file consistency protocol maintains file consistency between instances of the file associated with the file system using a set of file consistency protocol bits. The method then includes opening an instance of the file in a shared mode by setting a shared bit in the set of file consistency protocol bits associated with the file. A determination is then made as to the existence of another instance of the file. A shared bit the set of file consistency protocol bits associated with the another file is then set. In accordance with the method, a modification is made to the contents (e.g., data or attributes) of the instance of the file. A modified bit is then set in the set of file consistency protocol bits of the instance of the file. The modified bit is indicative of the modified contents, and an invalid bit is set in the set of file consistency protocol bits of the another file. The invalid bit is indicative of the modified contents of the instance of the file.