Sender Patterns to Wrangle Sender Patterns to Wrangle Concurrency in Embedded Devices Concurrency in Embedded Devices Michael Caisse Michael Caisse michael.caisse@intel.com michael.caisse@intel.com

disassembled binary measurement of runtime performance 5 C++ CBase Firmware Absolute minimal embedded project: ⚫ Main function: ⚫ Consists of a single, empty infinite loop ⚫ Startup script: ⚫ Defines Inheritance Dynamic Polymorphism Static Polymorphism Negative-cost abstractions More C++ for the embedded world! Architecture matters at runtime template concept constexpr consteval75 Thank You!

motorsToday’s spotlight: Exploring best practices in embedded systems, with a focus on operating systemsToday’s spotlight: Exploring best practices in embedded systems, with a focus on operating systems systems Today’s take away: Practical tips for building better software, applicable not only to embedded systems but also to software in generalEvery rule presented here comes with an exception Software always bounce back from a “bad” messageEmbedded Unit AEmbedded Unit A Embedded Unit BEmbedded Unit A Embedded Unit B SPI I2C UART CAN bus EtherentSend status request Status message

com © 2024 Bloomberg Finance L.P. All rights reserved. • Create a basic HTTP server. • Allow a single-threaded server handling multiple clients. • Use the sender/receiver asynchronous framework.

Leveraging the power of C++ for efficient machine learning on embedded devices Adrian Stanciu adrian.stanciu.pub@gmail.com CppCon, 2023 1 / 50About me ◮ I am a software engineer from Romania ◮ I have knowledge to make predictions ◮ Applications: ◮ Computer vision ◮ Medicine ◮ Search engines 6 / 50Embedded devices ◮ Computing devices designed to perform specific tasks within larger systems ◮ Applications: ◮ Low power consumption ◮ May have real-time performance constraints 7 / 50Machine learning on embedded devices ◮ Alternative to cloud-based machine learning ◮ Advantages: ◮ Real-time processing ◮ Low

� � � � � � � � � � � � . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 5 34.1.4 AIDL Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 34.1.5 � � � � � � � . . . � � � � � � state pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 51.6 embedded-hal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281 7 51.7 probe-rs and � � � � � � � � � � Rust � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ) embedded ( � � � . � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �

34.1.3 Service Implementation . . . . . . . . . . . . . . . . . . . . . . . . . 207 34.1.4 AIDL Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 34.1.5 Deploy . . . . . . . 50.5 The type state pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 50.6 embedded-hal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 50.7 probe-rs and cargo-embed include third-party crates in Chromium. • Bare-metal: a whole-day class on using Rust for bare-metal (embedded) development. Both microcontrollers and application processors are covered. • Concurrency: a whole-day

50.5 Шаблон стану типу . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282 50.6 embedded-hal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283 50.7 probe-rs та cargo-embed розробників у Chromium. • Голе залізо: одноденне заняття з використання Rust для низькорівневої (embedded) розробки, що охоплює як мікроконтролери, так і звичайні процесори. • Concurrency: повний день голому залізі Rust на голому залізі: заняття на повний день з використання Rust для низькорівневої (embedded) розробки. Розглядаються як мікроконтролери, так і прикладні процесори. Щодо частини мікроконтролерів

RequestHandler which is subclassed to create web applications, and various supporting classes). • Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). • An asynchronous networking library protocols. The Tornado web framework and HTTP server together offer a full-stack alternative to WSGI. While it is possible to use the Tornado HTTP server as a container for other WSGI frameworks (WSGIContainer) framework and HTTP server together. 6.1.2 Asynchronous and non-Blocking I/O Real-time web features require a long-lived mostly-idle connection per user. In a traditional synchronous web server, this implies

httpserver — Non-blocking HTTP server tornado.httpclient — Asynchronous HTTP client tornado.httputil — Manipulate HTTP headers and URLs tornado.http1connection – HTTP/1.x client/server implementation Asynchronous utilities tornado.tcpclient — IOStream connection factory tornado.tcpserver — Basic IOStream-based TCP server Coroutines and concurrency tornado.gen — Generator-based coroutines tornado.locks – Synchronization RequestHandler which is subclassed to create web applications, and various supporting classes). Client- and server-side implementions of HTTP (HTTPServer and AsyncHTTPClient). An asynchronous networking library including