Method and system for dynamically detecting leaked memory space

Details Method and system for dynamically detecting leaked memory space Method and system for dynamically detecting leaked memory space

1996-09-13

1998-11-24

MacDonald, Allen R.

G06F 1200

Patent

active

058420193

ABSTRACT:
A method using a computer and a system for dynamically detecting leaked memory space in a computer program. The computer program comprises instrumentation routines for communicating runtime memory space conditions to a dynamic debugging system and has a memory space for storing dynamic data values. A dynamic leak search is performed for tracking allocated memory space using reference counting. A static leak sweep is performed for scanning blocks of the memory space to determine whether each such block of the memory space is reachable from another such block of the memory space.

REFERENCES:
patent: 5644709 (1997-07-01), Austin
patent: 5689707 (1997-11-01), Donnelly
Collinson, Peter, A purveyor of fine programs. (Pure Software's Purify 3.0-Beta-1 debugging/testing software), EXE, v9, n2, p50(4), Apr. 1994.
Brooks, Roseann McGrath, Insightful debugger (Parasoft Corp. introduces Insight automatic debugging software), DEC Professional, v12, n8, p10(1), Aug. 1993.
Schulz, Peter, `Debugging Tools Tame Overwrite Bugs; C-Debug, memCheck Insert Debugging Statements Directly into a Program's Source Code`, PC Week, v9, n2, p92(2), Jan. 13, 1992.

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