I'm not sure I completely understand you. What I'd like
to allow would be something like this:
Octstr *foo;
Octstr *bar;
if (condition (bar)) {
foo = do_something_with (bar); /* foo points to a new Octstr, refcount =
1 */
} else {
foo = octstr_get_ref (bar); /* foo becomes a new reference to the
Octstr
pointed to by bar; refcount = 2 */
}
do_something_else (foo);
octstr_destroy (foo); /* refcount gets decremented. if it
reaches zero,
the Octstr actually gets released */
Regards
Jörg
-----Original Message-----
From: Aarno Syvänen
To: Jörg Pommnitz
Cc: '[EMAIL PROTECTED]'
Sent: 12/12/01 11:09 AM
Subject: Re: Ref-Counted octstr
Hi List & Jörg
Jörg Pommnitz wrote:
>
> Hi List,
> there is a number of unneeded octstr_duplicate calls in the
> tree. These calls could easily be replaced by a octstr_getref
> that increments a refcounter inside the octstr.
> A refcount > 1 would make the octstr immutable (e.g. calls that
> modify the contents are forbidden). octstr_destroy would decrement
> the refcounter. Reaching zero would actually destroy the entity.
>
> All these things seem rather easy and sensible.
>
> What do you think?
I think just removing them would be better. But it would nice if
there would be some debugging method to spot these calls. Is it
possible to use refcounter following way:
if duplicate is needed, do the deed
if is not, just print a debugging statement
Aarno
