comp.lang.idl-pvwave archive: archive » object memory management

Home » Public Forums » archive » object memory management

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

object memory management [message #63523]

Wed, 12 November 2008 09:31

Anonymous

Originally posted by: Demitri

Quick on the heels of my previous question about empty arrays... I have
a question about memory management.

Let's say I have a function that will return an array, but as it can be
empty, I'd like to return an IDL_Container instead. No problem:

FUNCTION f
container = NEW_OBJ('IDL_CONTAINER')
container->add, NEW_OBJ('my_obj')
container->add, NEW_OBJ('my_obj')

return, container
END

(Let's ignore the memory management of the 'my_obj's for the moment.)
Another method calls this and gets the container, but now the
responsibility to destroy that object is in the hands of the calling
routine, where it's not obvious (or maybe depending on the type it is?)
that it will need to be freed by hand.

<Mac programmers only>
In Obj-C, this problem solved by the autorelease / retain messages,
which of course IDL doesn't have. But that's the first thing I thought
of.
</Mac programmers only>

Is this something that should be published in my class' API and the
responsibility is passed to anyone using the function? It seems that
calling OBJ_DESTROY will also destroy the objects within the container,
and I may not want that. Should I ignore it and call HEAP_GC
occasionally (*cough*hack!*cough*)? What is the IDL convention here?

Cheers,

Demitri

Report message to a moderator

[Message index]

		object memory management By: Anonymous on Wed, 12 November 2008 09:31
		Re: object memory management By: Craig Markwardt on Thu, 13 November 2008 19:29
		Re: object memory management By: David Fanning on Thu, 13 November 2008 11:03
		Re: object memory management By: Anonymous on Thu, 13 November 2008 10:57
		Re: object memory management By: Craig Markwardt on Wed, 12 November 2008 21:18
		Re: object memory management By: Anonymous on Wed, 12 November 2008 14:50
		Re: object memory management By: David Fanning on Wed, 12 November 2008 10:23

Previous Topic:	CW_FIELD question
Next Topic:	Is there an easy way to write and read (large) structure?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 19:57:59 PDT 2025

Total time taken to generate the page: 0.00987 seconds