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>
19 lines
508 B
C
19 lines
508 B
C
#include "naut/system.h"
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#include <sched.h>
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#include <unistd.h>
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naut_err naut_pin_current_thread(int cpu) {
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int online = naut_online_cpus();
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if (cpu < 0 || cpu >= online) return NAUT_ERR_RANGE;
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cpu_set_t set;
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CPU_ZERO(&set);
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CPU_SET((unsigned)cpu, &set);
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return sched_setaffinity(0, sizeof set, &set) == 0
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? NAUT_OK : NAUT_ERR_IO;
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}
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int naut_online_cpus(void) {
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long count = sysconf(_SC_NPROCESSORS_ONLN);
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return count > 0 && count <= INT32_MAX ? (int)count : 1;
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}
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