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:
Nov. 28, 2000
Filed:
Apr. 28, 1998
Jay William Benayon, Thornhill, CA;
Brian Ward Thomson, North York, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for recognizing fixed size objects and allocating and freeing fixed size data objects in a multiple heap system. The method utilizes a page based structure for allocating fixed size objects. A page or pool of pages is provided for each predetermined object size. Each page includes a reserved area for storing heap handle and object size information which is common to all the objects of the predetermined size for the page. Allocation and de-allocation requests are performed based on the object size. The reserved area in the page includes a recognizable sanity value and the object size for the page. The sanity value denotes a fixed size object. The reserved area also stores two pointers to keep track of a linked list of available and free objects. The remainder of the page is used for the objects. For a de-allocation request, the page containing the object is determined from the address of the object.