A MEMORY MANAGEMENT SYSTEM INCLUDING MAPPING OF PHYSICALLY NON-CONTIGUOUS MEMORY SEGMENTS INTO LOGICALLY CONTIGUOUS BLOCKS AND RELEASING OF MEMORY SEGMENTS BASED ON THE NUMBER OF REFERENCES AND SEGMENT OWNERSHIP
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United States of America Patent
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Issued Date -
Aug 9, 2001
app pub date -
May 22, 1998
filing date -
Jul 16, 1997
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A digital memory management system for providing access to a digital memory (20) from at least one program process executing in an operating system for at least one digital processor has at least one memory management object (30; 50, 60) with a mapping structure (32a, 32b) for mapping a plurality of physically non-contiguous memory segments (22a, 22b) into a logically contiguous memory block. A reference (41) to an owner (40; 40a, 40b) is given to each physically non-contiguous memory segment. Furthermore, at least one method is arranged for providing random access for the program processes to the logically contiguous memory block, and at least one memory reference handling method is arranged for monitoring the number of references from the program processes to each respective physically non-contiguous memory segments and is arranged to release any of the physically non-contiguous memory segments, when or if it is found not to be in use by any of the program processes.
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