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{
"oid": "83227b368a5d2370d4d6aaf52e07ee4389c30af0",
"body": "Add WithSource and WithDontFragment (non-privileged source binding + DF)",
"is_bot": false,
"headline": "Merge pull request #9 from randomizedcoder/source-and-dontfragment",
"author_name": "randomizedcoder",
"author_login": "randomizedcoder",
"committed_at": "2026-07-19T15:06:09Z",
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"oid": "d7b9525fbf189c4b43344da3befc685b77f9a66e",
"body": "Both are set on the shared sockets at Start and require no CAP_NET_RAW,\nextending the non-privileged model to two options previously only\navailable with raw sockets:\n\n- WithSource(netip.Addr): binds the sockets to a specific source address\n for its own family (multi-homed hosts); a non-local addres\n[…]\nce\nbind, non-local bind failure, DF ping, and a white-box getsockopt\nreadback confirming IP_PMTUDISC_DO). golang.org/x/sys is now a direct dep.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add WithSource and WithDontFragment engine options",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
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"committed_at": "2026-07-19T15:00:35Z",
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"oid": "24be65bf9c8294603407c004f635a5bad94ca970",
"body": "Add packet size, DSCP marking and TTL/hop-limit support",
"is_bot": false,
"headline": "Merge pull request #8 from randomizedcoder/packet-size-dscp-ttl",
"author_name": "randomizedcoder",
"author_login": "randomizedcoder",
"committed_at": "2026-07-19T05:26:29Z",
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{
"oid": "783b008957c498b37ba2adcdd18ba517b6ec3cab",
"body": "Previously the engine sent bare ICMP echo requests (ID + Seq only) and\nnever set any IP-layer options. This adds three configurable knobs, for\nboth IPv4 and IPv6:\n\n- PayloadSize(n): per-ping option appending n ICMP data bytes after the\n 8-byte header (ping -s semantics; range 0..65500, default 0). \n[…]\n\nAdds unit tests for payload marshaling, the fill pattern and all range\nvalidation, and updates the README (removing the \"not supported\" note).\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add packet size, DSCP marking and TTL/hop-limit support",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
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{
"oid": "78d08bb7e6ac4bb395e61e276b0b9c1c7d7a3fed",
"body": "Add switch-vs-dispatch benchmark + guideline for adding backends",
"is_bot": false,
"headline": "Merge pull request #7 from randomizedcoder/dispatch-benchmark",
"author_name": "randomizedcoder",
"author_login": "randomizedcoder",
"committed_at": "2026-07-19T04:07:16Z",
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"oid": "d7ba778e77716bb4056333c508e682d68bcceae0",
"body": "Records, with a reproducible benchmark, whether the backend-selection switch\nstatements should become dispatch tables as more backends are added.\n\nMeasured (ns/op): a dense-integer switch (Backend) compiles to a jump table —\nO(1), as fast as a slice and faster than a map, and it does not degrade as \n[…]\nispatches through the expiryTracker\ninterface). docs/backends.md notes the guideline; revisit only if a string\nswitch grows to dozens of cases.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add switch-vs-dispatch benchmark as a guideline for new backends",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
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"committed_at": "2026-07-19T03:39:21Z",
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{
"oid": "bb69ba4e0c43dafa3626f233e8f9aaa4c31d5e33",
"body": "Make the 8-ary heap (BackendDaryHeap) the default expiry backend",
"is_bot": false,
"headline": "Merge pull request #6 from randomizedcoder/default-dary-heap",
"author_name": "randomizedcoder",
"author_login": "randomizedcoder",
"committed_at": "2026-07-19T02:45:18Z",
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"oid": "f53586acc3e2e8db989965796810522a9d9178aa",
"body": "The 8-ary array heap is the fastest structure across every benchmarked\nworkload (mixed, uniform, engine-level fleet) at the same allocations as the\nbinary heap, and passes the full correctness + differential-fuzz + race suite.\nSo New (with no WithExpiryBackend) and the CLI now default to it; BackendHeap\n(stdlib container/heap) remains a one-line opt-in. Docs updated.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Make BackendDaryHeap the default expiry backend",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
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"committed_at": "2026-07-19T02:11:47Z",
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{
"oid": "1ce43b39a80f96ec1aa115dc14be333b12d9b450",
"body": "Land expiry backends on main + add backends selection guide",
"is_bot": false,
"headline": "Merge pull request #5 from randomizedcoder/land-backends-and-docs",
"author_name": "randomizedcoder",
"author_login": "randomizedcoder",
"committed_at": "2026-07-19T02:03:00Z",
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"oid": "f88ca82028c3d72b0ce4643051ec35e7b4011f70",
"body": "PR #4 (the d-ary/pairing/radix/wheel backends) merged into the already-merged\nper-ping-timeouts-synctest branch instead of main due to a stacked-PR base, so\nits changes never reached main. This re-lands that work (cherry-pick of the\nbackends commit) and adds docs/backends.md — a per-backend decision guide with\npros/cons, when-to-use, and a results-at-a-glance table — complementing the\nmethodology in docs/benchmarking.md. README links both.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Land expiry backends on main + add backends selection guide",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
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"committed_at": "2026-07-19T01:58:16Z",
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"oid": "93d75b9c959e4bbe99c9d254982bd59d41c24264",
"body": "…g wheel) + benchmark\n\nAdds four data-structure contenders behind the expiryTracker interface, each a\npublic Backend, each validated by the shared correctness suite (now including an\n8000-op differential fuzz test that races every backend against a reference heap\nand asserts exact peek agreement):\n\n\n[…]\npendency (the wheel reuses google/btree). docs/benchmarking.md and README\nupdated with per-backend tables, the fan-out sweep, and the findings.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add four more expiry backends (d-ary heap, pairing, radix trie, timin…",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
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"committed_at": "2026-07-19T01:56:23Z",
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{
"oid": "81d72adc5a8679ab94d2f521491bca2c4cefaa5b",
"body": "Per-ping timeouts + deterministic synctest tests; fair heap-vs-btree re-benchmark",
"is_bot": false,
"headline": "Merge pull request #3 from randomizedcoder/per-ping-timeouts-synctest",
"author_name": "randomizedcoder",
"author_login": "randomizedcoder",
"committed_at": "2026-07-19T01:52:13Z",
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{
"oid": "bd17d0d1b06502ce5b701e80aa3c282e6fd19e1a",
"body": "Document the methodology and results behind choosing the heap backend\n(uniform vs mixed tracker micro-benchmarks and the engine-level fleet\nbenchmark), how to reproduce, and a survey of alternative data structures\nconsidered — d-ary heaps, hierarchical timing wheels, radix/monotone heaps,\npairing/Fibonacci heaps — with honest fit notes. Linked from the README.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "docs: add expiry-tracker benchmarking writeup",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
"author_login": "randomizedcoder",
"committed_at": "2026-07-19T00:23:46Z",
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{
"oid": "3114fedbc7ad669860a98ffa48f3f56160829132",
"body": "BenchmarkEngineFleet runs the whole engine (goroutines, channels, timers and\nthe expiry queue together) pinging a fleet under ~20% packet loss with distinct\nsub-millisecond per-ping timeouts, in real time, under each backend.\n\nShows the backend is a growing share of engine cost, not negligible:\n he\n[…]\ntion that widens with fleet size (the tracker micro-benchmark shows\nmultiples at tens of thousands outstanding). BackendHeap stays the default.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add engine-level fleet benchmark comparing heap vs btree backends",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
"author_login": "randomizedcoder",
"committed_at": "2026-07-18T18:14:00Z",
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{
"oid": "67742b4c442f02c7384dacc63407834a7f2a8a45",
"body": "Stress the timeout machinery at fleet scale: 100 destinations pinged\nconcurrently through one engine, each with a distinct per-ping timeout\nlog-spaced from ~1ms to ~1h, under deterministic 30% packet loss.\n\nVerifies the engine times out exactly the lost packets — at each target's\nown timeout — while\n[…]\nelivering the rest (300 timed out, 700 delivered),\nall deterministically in fake time (~8ms real). Runs race-clean with 100\nconcurrent pingers.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add 100-target synctest test with distinct timeouts and packet loss",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
"author_login": "randomizedcoder",
"committed_at": "2026-07-18T18:05:31Z",
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{
"oid": "90bb7f08294b2d3213d878bd3fc2e60a92185a21",
"body": "…ap vs btree fairly\n\nAddresses the critique that the expiry-backend benchmark was unfair: it used a\nsingle engine-wide timeout, so every entry's expiry was monotonic with insertion\norder — the one workload where a heap/list trivially win and btree's ordered\ninsert never shows.\n\nFeature:\n- PingTimeou\n[…]\nified: go test (incl. synctest), go test -race, golangci-lint all three tiers,\nreal loopback ping with a per-ping timeout, and nix flake check.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add per-ping timeouts + deterministic synctest tests; re-benchmark he…",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
"author_login": "randomizedcoder",
"committed_at": "2026-07-18T17:11:24Z",
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"oid": "94fd04839be4aa7f821709ee2a5ebfdb34f8b6b5",
"body": "Pluggable expiry-tracker backend (heap/btree) + benchmarks",
"is_bot": false,
"headline": "Merge pull request #2 from randomizedcoder/expiry-backend-abstraction",
"author_name": "randomizedcoder",
"author_login": "randomizedcoder",
"committed_at": "2026-07-18T06:22:23Z",
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"oid": "1735d67c5f7e547af3bb2cea3ee2e61abb1f82e1",
"body": "Extract a clean abstraction around expiry tracking so the data structure\ncan be swapped and benchmarked, and add a google/btree backend.\n\n- New internal expiryTracker interface (push/peek/remove/deleteAddr/len)\n in expiry.go, with a public Backend enum and WithExpiryBackend option.\n Engine holds a\n[…]\n(both backends), go test -race, golangci-lint all three\ntiers, real ICMP to loopback via -backend heap and -backend btree, and\nnix flake check.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add pluggable expiry-tracker backend (heap/btree) with benchmarks",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
"author_login": "randomizedcoder",
"committed_at": "2026-07-18T06:17:42Z",
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"oid": "a34f17eba336b515a8810828b87c1157e90a5b47",
"body": "Modernize into an embeddable, idiomatic-Go library",
"is_bot": false,
"headline": "Merge pull request #1 from randomizedcoder/modernize-embeddability",
"author_name": "randomizedcoder",
"author_login": "randomizedcoder",
"committed_at": "2026-07-18T05:41:33Z",
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{
"oid": "178d70a9ba35a4ae77a29bf0f1c49ceb7e71ec58",
"body": "Breaking redesign to make icmpengine easy to embed and drive adoption,\nnow that the module is standalone (no longer tracking the unmaintained\nupstream).\n\nEmbeddability:\n- Remove all ~9 log.Fatal calls from library code. Synchronous failures\n return errors from New/Start/Ping; background receiver fa\n[…]\nrified: go build/test, go test -race, golangci-lint (all three tiers),\nreal ICMP to loopback (v4+v6) via examples and CLI, and nix flake check.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Modernize into an embeddable, idiomatic-Go library",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
"author_login": "randomizedcoder",
"committed_at": "2026-07-18T05:38:34Z",
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"oid": "90d8a16da9774b75f0a5bb19de85a838d975ceb9",
"body": "Add Nix flake with modular nix/ and tiered static analysis",
"is_bot": false,
"headline": "Merge pull request #2 from randomizedcoder/nix-flake",
"author_name": "randomizedcoder",
"author_login": "randomizedcoder",
"committed_at": "2026-07-18T04:21:05Z",
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{
"oid": "9a6686c1a1fcdc834c57a1a0be3bcc14cd5d53f6",
"body": "The Tier 0 golangci check used --timeout 60s, which is fine locally (warm\nbuild cache) but the cold Nix sandbox on GitHub Actions exceeded it while\ntype-checking with no cache (\"0 issues\" found, but wall-clock > 60s -> exit 1).\n\nRaise the quick ceiling to 5m and the standard ceiling to 10m (in both the\nnix checks and the .golangci*.yml config defaults, plus the quality-report and\ndevshell helpers). The timeout is a ceiling, not a target.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "ci: raise golangci timeouts for cold hermetic sandbox",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
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"committed_at": "2026-07-18T04:17:10Z",
"body_truncated": false,
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{
"oid": "9ea6a742d93ec5932c473461668250d903e4a722",
"body": "Adds reproducible Nix packaging mirroring the xtcp2 flake's modular style,\nscaled to icmpengine's single pure-Go binary + library.\n\nFlake / packaging:\n- Thin flake.nix orchestrator -> nix/default.nix aggregator; nixos-unstable +\n flake-utils, systems x86_64-linux + aarch64-linux.\n- nix/versions.nix\n[…]\norms + package doc;\n fix misspellings; drop unnecessary conversions.\n\nCI: nix job (flake check + build + quality-report) alongside the Go job.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add Nix flake with modular nix/ and tiered static analysis",
"author_name": "randomizedcoder dave.seddon.ca@gmail.com",
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"oid": "d15c24f6be4ce44d2d35ac985ee2f45d0f48d9cd",
"body": "Refresh and re-home the module for standalone reuse",
"is_bot": false,
"headline": "Merge pull request #1 from randomizedcoder/refresh-modernize",
"author_name": "randomizedcoder",
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"committed_at": "2026-07-17T22:01:49Z",
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"body": "The upstream Edgio/EdgeCast repo is no longer functional, so this makes the\nfork stand on its own and be directly importable.\n\n- Rename module to github.com/randomizedcoder/icmpengine; drop stale\n gitlab.edgecastcdn.net / EdgeCast references.\n- Modernize toolchain: go 1.16 -> 1.26.5, //go:build tag\n[…]\nErrorf(fmt.Sprintf(...)) that newer\n go vet rejects.\n- CI: add GitHub Actions (build/vet/test/race/CLI on go 1.26.5), remove\n .gitlab-ci.yml.\n\nCo-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>",
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"headline": "Refresh and re-home the module for standalone reuse",
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