Welcome! This is my personal stash of notes on Bitcoin Core and some related C++ things I run into while digging around. These are mostly for myself, but you're welcome to snoop around.
Notes may be wrong, outdated, or just me thinking out loud. Don't trust, verify! :)
default-arguments.md: C++ default arguments — syntax, header/source split, and usage examples.include-guards.md: How include guards prevent multiple inclusion in C++ headers, and how to write them.macro-safety-do-while-false-idiom.md: Why macros use do { ... } while(false); to behave like safe single statements.mutex-vs-recursive-mutex.md: Comparing std::mutex and std::recursive_mutex, with a hands-on nested logging example.pimpl_vs_pure_abstract.md: Explains the PIMPL and Pure Abstract Class patterns for hiding implementation details.
sancov-modes.md: Summary of main sanitizer coverage modes
addr-message.md: When, why, and how Bitcoin nodes send ADDR messages to peersaddr-timestamps.md: How address timestamps are initialized, updated, and used to evaluate freshness and "terribleness".getaddr-request.md: When and why nodes send GETADDR, and how responses are rate-limited.
addr-relay-timers.md: Short explanation of when ADDR/GETADDR are sent, to serve as a spec for the simulation
Built with 🧁☕, curiosity, and a lot of git grep.
(Plus a little AI help to keep things organized.)