Real‑Time Reactive UI from Native C++ Using Java Panama & byte-struct
A demonstration of byte-struct, a zero‑allocation struct system that bridges native C++ and Java using Project Panama, VarHandles, and a fully reactive UI.
You can run or view the code behind this demo here: https://github.com/davetcc/byte-struct
Video timeline:
00:00 Introduction by Dave Cherry
00:18 Live demonstration of all components running
02:08 Going through the C++ shared library
02:52 Going through byte-struct usage
04:10 Java native trading system, calling the C code
05:08 Price conflation, VarHandle CAS and React UI
The demo shows:
Native C++ producing structured market data at 35000 msg/sec
Java reading the same memory via Panama into messages
Zero allocation using byte-struct messages in the critical flow
A reactive UI running in both browser and iPhone simulator
How the struct layout, memory model, and update pipeline work end‑to‑end
NOTE: All data shown is fictitious and for demonstration purposes only.
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