2178d6a70c
A maintainable, extensible BitTorrent client (C11, Linux/io_uring) targeting 10 GbE saturation. All torrent functionality is built from scratch; liburing is the only linked third-party dependency on the data path. Implements Phases 1-7 of the roadmap: - core: page-aligned buffer pool, MPMC/Treiber queues, bitfields, worker pool - crypto: SHA-1/256 (SHA-NI + scalar), Merkle (BEP-52), RC4 (MSE) - bencode/metainfo: zero-copy parser, v1/v2/hybrid .torrent + magnet - peer: sans-IO wire codec, MSE/PE handshake state machine, BEP-10, ut_metadata, PEX - piece/storage: block-level multi-peer engine, rarest-first + endgame, per-file completion events + single-file relocate (move-as-you-finish) - tracker/dht: HTTP + UDP (BEP-15) trackers, BEP-5 KRPC iterative lookup - platform: io_uring reactor (SQPOLL, registered buffers, SEND_ZC) - surface: versioned RPC, native plugin ABI, sandboxed Lua scripting, nautd/nautctl Verified against libtorrent (single/multi/hybrid, MSE, magnet-via-DHT, swarm); unit + interop tests green; ASan/UBSan/TSan clean. Scripting reference in docs/scripting.md. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
29 lines
987 B
C
29 lines
987 B
C
/* pipeline.h - adaptive request window based on observed bandwidth-delay product. */
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#ifndef NAUT_PIPELINE_H
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#define NAUT_PIPELINE_H
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#include "naut/common.h"
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typedef struct {
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double rtt_seconds;
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double bytes_per_second;
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double last_sample_at;
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uint32_t depth;
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uint32_t min_depth;
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uint32_t max_depth;
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uint32_t block_size;
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} naut_pipeline;
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void naut_pipeline_init(naut_pipeline *p, uint32_t block_size,
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uint32_t min_depth, uint32_t max_depth,
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uint32_t initial_depth);
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/* Record one completed request. sent_at and received_at are monotonic seconds.
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* The controller smooths RTT and delivery rate, then targets 2x BDP to absorb
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* scheduling jitter without allowing an unbounded request window. */
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void naut_pipeline_on_block(naut_pipeline *p, uint32_t bytes,
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double sent_at, double received_at);
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uint32_t naut_pipeline_depth(const naut_pipeline *p);
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#endif /* NAUT_PIPELINE_H */
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