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>
59 lines
2.1 KiB
Bash
59 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# Phase 6 local platform gate: fixed-buffer recv + SEND_ZC echo integrity.
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set -euo pipefail
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ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
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ECHO="${1:-$ROOT/build/naut_echo}"
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PORT="${NAUT_ECHO_PORT:-39127}"
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LOG="$(mktemp /tmp/naut_echo_scale.XXXXXX)"
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cleanup() {
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[ -n "${server:-}" ] && kill -TERM "$server" 2>/dev/null || true
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[ -n "${server:-}" ] && wait "$server" 2>/dev/null || true
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rm -f "$LOG"
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}
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trap cleanup EXIT
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NAUT_SQPOLL=1 "$ECHO" "$PORT" >"$LOG" 2>&1 &
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server=$!
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for _ in $(seq 1 100); do
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grep -q "echo listening" "$LOG" && break
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kill -0 "$server" 2>/dev/null || {
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echo "FAIL: echo server exited"; cat "$LOG"; exit 1;
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}
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sleep 0.05
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done
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grep -q "echo listening" "$LOG" || {
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echo "FAIL: echo server did not listen"; cat "$LOG"; exit 1;
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}
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BYTES=$((256 * 1024 * 1024))
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CONNS=8
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python3 "$ROOT/tests/integration/echo_client.py" "$PORT" "$BYTES" "$CONNS"
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kill -TERM "$server"
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wait "$server"
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server=""
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grep -q "bytes echoed" "$LOG" || {
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echo "FAIL: echo server did not shut down cleanly"; cat "$LOG"; exit 1;
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}
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grep "bytes echoed" "$LOG"
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# Server-side accounting must match exactly: every byte the client sent was
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# echoed back, and no connection was dropped mid-stream. (A truncated echo is
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# also caught client-side, but asserting the count here makes a server-side
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# drop a hard, deterministic failure rather than a timing-dependent one.)
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echoed=$(grep -oE '[0-9]+ bytes echoed' "$LOG" | grep -oE '^[0-9]+')
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if [ "$echoed" != "$BYTES" ]; then
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echo "FAIL: echoed $echoed bytes, expected $BYTES (a connection was dropped)"
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cat "$LOG"; exit 1
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fi
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conns=$(grep -oE '[0-9]+ conns' "$LOG" | grep -oE '^[0-9]+')
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if [ "$conns" != "$CONNS" ]; then
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echo "FAIL: served $conns connections, expected $CONNS"; cat "$LOG"; exit 1
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fi
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# Report whether the SQPOLL path was actually exercised (it falls back cleanly
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# where the kernel/privileges disallow it — informational, not a failure).
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if grep -q "sqpoll" "$LOG"; then
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echo "PASS: io_uring SQPOLL fixed-buffer/SEND_ZC echo path is byte-correct"
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else
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echo "PASS: io_uring echo path byte-correct (SQPOLL unavailable, used fallback)"
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fi
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