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Re: Memory Leaks [message #16909 is a reply to message #16838]

Tue, 24 August 1999 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Tom Kluegel (kluegel@lanl.gov) writes:

> The closest thing I know is:
> IDL> HEAP_GC, /VERBOSE
>
> It might be good enough for your purposes, but it insists on actually
> deallocating the leaked heap memory, not just telling you about them.

Well, HELP, /HEAP will tell you about what you have
on the heap (but not which heap variables have
no current reference). This is often enough to figure
out where you are leaking.

HEAP_GC, of course, should only be used when your
office door is closed and no one is looking over
your shoulder. Real programmers don't need it
or use it. :-)

Cheers,

David

P.S. In practice, leakage tests work like this:

1. Type Heap_GC to clean all leaking heap variables.
2. Type Help, /Heap to see if anything is left (usually not).
3. Run your program and exit.
4. Type Help, /Heap to see if there is anything left now.

If there is, you are leaking. Usually it is just a matter of
adding the appropriate Ptr_Free or Obj_Destroy command to
the Cleanup routine.

--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Memory Leaks By: David on Tue, 24 August 1999 00:00
		Re: Memory Leaks By: steinhh on Thu, 26 August 1999 00:00
		Re: Memory Leaks By: Justin Ashmall on Thu, 26 August 1999 00:00
		Re: Memory Leaks By: davidf on Tue, 24 August 1999 00:00
		Re: Memory Leaks By: kluegel on Tue, 24 August 1999 00:00
		Re: Memory Leaks By: Michael Werger on Mon, 30 August 1999 00:00
		Re: Memory Leaks By: m218003 on Fri, 27 August 1999 00:00

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