PTP ambitious project

Pet project to study P2P concepts.

Features

• Some data structures (list, hash, trees), non-thread-safe.
• Non-blocking IO event loop.
• Kademlia DHT.
• Bencode de-/serialization.

Build

Install meson and ninja. Then

mkdir build && cd build
meson
meson compile

Usage

kldload mqueuefs on FreeBSD.

src/ptp -h                    # print help
src/ptp -a 127.0.0.1 -p 2222  # start binding to 127.0.0.1:2222

Acknowledgements

Algorithms

• Julienne Walker's tutorials
• cjdns by Caleb James DeLisle
• Linux kernel by the Linux community
• nanomsg by Martin Sustrik
• FreeBSD bits by Niels Provos

P2P

• Nadeem Abdul Hamid's P2P Programming Framework
• Jakob Jenkov's P2P Tutorial
• BitTorrent DHT Protocol specifications by Andrew Loewenstern and Arvid Norberg
• Kademlia's paper

Roadmap

• consolidate integration tests
• fix cppcheck and git-hooks
• optimize memory during bencode parsing
• proper bucket management (last_seen) + use replacements
• resource storage
• save dht regularly
• integration tests for say when there are multiple clients connecting to tcp sock
• threadpool http://people.clarkson.edu/~jmatthew/cs644.archive/cs644.fa2001/proj/locksmith/code/ExampleTest/threadpool.c
• read bootstrap nodes from text file in background
• make integration (from consumers) more flexible, especially with regards to event loop