BDE VS OpenMAMA

Hi, one of the authors here. BlazingMQ depends on two other open source C++ libraries: https://github.com/bloomberg/bde and https://github.com/bloomberg/ntf-core. I believe documentation writer wanted to highlight that BlazingMQ does not depend on frameworks like ZooKeeper, etc.

It would be easy to make the runtime use polymorphic allocators, one for the temporary objects created by update_methods, and another for the hash and dispatch tables. The first allocator could use the stack (like this), and the second a block in the BSS segment.

I'm pretty sure they use C++ very extensively. They have their own C++ standard library for example. I'm not aware of them using FORTRAN or C. Do you have a reference for that?

No first-hand experience, but C++ is definitely a player. Check out John Lakos and bloomberg/bde. He was a force behind the improved allocators in C++11 and beyond. That repo I linked is a beast of a codebase (:

Specifying your own allocator is like a main feature of bde from Bloomberg:

https://github.com/bloomberg/bde

If I remember correctly, BDE ( https://github.com/bloomberg/bde ) is developed in London's office and definitely the team that works on it is one of the most experienced in the company.

Libc++ hasn't implemented polymorphic containers and similar. You could take a look at what inspired PMR: https://github.com/bloomberg/bde/

Unlikely, but they seem to be different things altogether. BlazingMQ appears to be a traditional message queue (think ActiveMQ), with message peristence. ZeroMQ is more of a network middleware (think Tibco Rendezvous), and does not include persistence.

BlazingMQ also appears to be more of a "platform" or "service" that an app can use (sort of like Oracle, say) -- ZeroMQ includes libraries that one can use to build an app, service or platform, but none is provided "out of the box".

Which makes it harder to get started with ZeroMQ, since by definition every ZeroMQ app is essentially built "from scratch".

If you're interested in ZeroMQ, you may want to check out OZ (https://github.com/nyfix/OZ), which is a Rendezvous-like platform that uses the OpenMAMA API (https://github.com/finos/OpenMAMA) and ZeroMQ (https://github.com/zeromq/libzmq) transport to provide a full-featured network middleware implementation. OZ has been used in our shop since 2020 handling approx 50MM high-value messages per day on our global FIX network.