Hi,
I am just a user, but I would love to see this change. I have thinking about
this and I would like to be able to pass a C++ allocator object to ZeroMQ, so a
simple function hook is not enough. My idea is to define a struct in the
interface
struct allocator_t
{
void* hint;
void* (allocate)(size_t, void*);
void (deallocate)(void*, size_t, void*);
};
and store this in the context object. Since I don't think that this should be
changed during runtime, I would create a new zmq_ctx_new overload which takes a
parameter of type allocator_t. The default value would be to call malloc/free.
Cheers,
Jens
--
Jens Auer | CGI | Software-Engineer
CGI (Germany) GmbH & Co. KG
Rheinstraße 95 | 64295 Darmstadt | Germany
T: +49 6151 36860 154
[email protected]<mailto:[email protected]>
Unsere Pflichtangaben gemäß § 35a GmbHG / §§ 161, 125a HGB finden Sie unter
de.cgi.com/pflichtangaben<http://de.cgi.com/pflichtangaben>.
CONFIDENTIALITY NOTICE: Proprietary/Confidential information belonging to CGI
Group Inc. and its affiliates may be contained in this message. If you are not
a recipient indicated or intended in this message (or responsible for delivery
of this message to such person), or you think for any reason that this message
may have been addressed to you in error, you may not use or copy or deliver
this message to anyone else. In such case, you should destroy this message and
are asked to notify the sender by reply e-mail.
________________________________
Von: zeromq-dev [[email protected]]" im Auftrag von "Petteri
Salo [[email protected]]
Gesendet: Montag, 28. November 2016 09:40
An: [email protected]
Betreff: [zeromq-dev] On hooking memory allocations
Hello,
Let me first do a little introduction as I'm new to this list. I'm a software
engineer with 15+ years of experience working on games at a company called
Remedy Entertainment Ltd. We've done games for PC, and various games consoles
over the years. Most recently we did Quantum Break for Xbox One.
I've now been tasked with evaluating ZeroMQ. One important feature of any
library we use in games is the ability to hook all memory allocations - this is
to allow the use of custom memory allocators and/or for tracking when and where
memory is allocated.
I've searched the libzmq source code and there is about 150 uses of new,
malloc, realloc , etc.
If we were to adopt libzmq we'd like to put in allocation hooks and that work
would then be something that we'd like to contribute back to the project.
Having those hooks in the main repository would then make it easier for us to
adopt future changes to the library.
So, my question is would this kind of change be something that would be
accepted? Of course assuming that coding conventions, proper way of submitting
the patch etc. are followed. I do realize that one would want to see the actual
code before accepting. I'm interested in the principle of accepting a change
such as this, since it would introduce a new "rule" for working ión libzmq
source code : "All allocations shall go through an allocation hook."
Best Regards,
Petteri Salo
_______________________________________________
zeromq-dev mailing list
[email protected]
http://lists.zeromq.org/mailman/listinfo/zeromq-dev
