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Re: Memory Leaks [message #16912 is a reply to message #16838]

Tue, 24 August 1999 00:00

kluegel
Messages: 11
Registered: February 1999

Junior Member

In article <37C22D54.12C9EDC1@ihug.com.au>,
David <pharoh@ihug.com.au> wrote:
> In unix you are able to use bcheck to check for memory leaks. I was
> wondering is there a program that has similar abilities as bcheck but
> for windows, that can check for memory leaks in IDL.

Its important to realize that the type of memory leaks that can happen
in IDL (barring internal IDL bugs), are chunks of IDL heap memory that
are lost to an IDL program, but they are not actually lost to the IDL
interpreter. Its the IDL interpreter that manages the IDL heap, and
gives pieces or takes back pieces upon request by the IDL program. The
pointer you receive from PTR_NEW, or give via PTR_FREE is really just a
logical reference to a piece of the IDL heap, not a direct pointer into
the computer's memory. Only the IDL interpreter understands it. An MS
Windows-level utility doesn't have any way of knowing about those kind
of memory leaks. Only an IDL-level utility can accomplish the needed
functionality. If there's a utility to help you in this manner, its
either written in IDL or is a provided functionality as a part of IDL.
So it would most likely be available on all IDL platforms.

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.

Hope this helps.
-- Tom

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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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