Delegate this! Designing with delegates in modern C++

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" summary

Showcases a header-only delegate implementation that matches C function pointer speed and interoperates with std::function, used to wire IncludeOS’s IP stack top-to-bottom with header-only delegates as fast as C function pointers and to build routing, REST endpoints and unit tests. Delegates carry state-less signatures, move unique_ptr packet buffers, and allow rewire protocol handlers at runtime without context switches. The system runs single-threaded, sustains a few gigabits and tens of thousands of concurrent connections, and exposes messy async loops for complex bidirectional transfers.

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" chapters (16)

1. 0:00Introduction to delegates
2. 3:54Finding fast delegates
3. 6:42Basic usage and lambdas
4. 9:11Neural network example
5. 13:42Runtime rewiring
6. 16:49Delegates vs std::bind
7. 18:40Neural network complexity
8. 19:53IP stack architecture
9. 22:17Async callback performance
10. 28:31Asynchronous loops
11. 31:14Real brain comparison
12. 33:48Alternatives and libraries
13. 35:33Unit testing with mocks
14. 37:21Practical web service
15. 40:12Implementing a firewall
16. 47:13Q&A and conclusion

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