[zeromq-dev] On hooking memory allocations

[Petteri Salo]

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
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