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Malte UblandClaude Opus 5.5
7176257136
fs.watchFile(path[, options], listener) polls the resolved path every `interval` milliseconds (5007 by default, `persistent` by default) and calls its listener with (current, previous) Stats when a poll sees a difference. The first poll only records the baseline, a path that cannot be stat'd polls as all-zero Stats, and a stat failure that repeats for the same errno is not re-reported. One poller per RESOLVED path is shared by every listener on it, and fs.unwatchFile(path[, listener]) removes the last listener registered with that callback, or every listener when called without one. The call is a statement, since Node's StatWatcher has no lowering, and bigint: true is refused. The implementation is scr_watch_file.c, a new gated runtime unit switched by moduleUsesFsWatchFile, so programs that do not poll link none of it. The feature travels the usual chain (runtime-features, executable-features, the native link info, the executable cache keys, the runtime-pack matrix) and the validator learns that fs.unwatchFile's trailing listener slot may be omitted. Evidence: - tests/corpus/fs-watch-file-names.ts and fs-watch-file-polling.ts match Node on stdout, stderr and exit status in the plain and sanitized lanes - 1564-fs-watch.ts, 1751-options-record-stance.ts and the `fs` corpus stay green; the new order baselines and corpus cost files are recorded Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
85 lines
2.8 KiB
TypeScript
85 lines
2.8 KiB
TypeScript
import { buildCacheRoot, prepareBuildCacheRoot } from "./build-cache.js";
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import { loadRuntimePack } from "./runtime-pack.js";
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import { nativeCodegenTarget, nativeCodegenTargetRefusal } from "./targets.js";
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import {
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warmNativeCaches as warmDevelopmentRuntime,
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type NativeCacheWarmProfile,
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type WarmNativeCachesOptions,
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type WarmNativeCachesResult,
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} from "./native/cache-warm.js";
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/** Verify and read the installed runtime families before the first build. */
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export async function warmNativeCaches(
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options: WarmNativeCachesOptions = {},
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): Promise<WarmNativeCachesResult> {
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if (options.sanitize) return warmDevelopmentRuntime(options);
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const cacheRoot = await prepareBuildCacheRoot(buildCacheRoot());
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if (cacheRoot === null) throw new Error("the native build cache is disabled or unavailable");
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const known = new Set<NativeCacheWarmProfile>(["runtime", "tls"]);
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for (const profile of options.profiles ?? [])
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if (!known.has(profile)) throw new Error(`unknown native cache warm profile '${profile}'`);
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const target = nativeCodegenTarget();
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if (target === null)
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throw new Error(nativeCodegenTargetRefusal() ?? "unsupported runtime-pack target");
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if (!target.supports.exe)
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throw new Error(
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`native cache warming requires an executable target; ${target.name} supports library archives`,
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);
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const profiles = [...new Set(options.profiles ?? (["runtime", "tls"] as const))];
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const results = [];
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for (const profile of profiles) {
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const started = performance.now();
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await loadRuntimePack({
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target,
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optimization: options.optimization ?? "release",
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features: {
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fetch: profile === "tls",
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regex: false,
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copying: false,
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textDecoderLegacy: false,
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fileHandle: false,
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zlib: false,
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assert: false,
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inspect: false,
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dynInvoke: false,
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dc: false,
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dynAsync: false,
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events: false,
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emitter: false,
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symbol: false,
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bigint: false,
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searchParams: false,
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qs: false,
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utilPromisify: false,
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dynBuiltinClass: false,
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dynBuiltinStream: false,
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parseArgs: false,
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stream: false,
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net: false,
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http: false,
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http2: false,
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dgram: false,
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dnsPromises: false,
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dgramDyn: false,
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textCodecDyn: false,
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watch: false,
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watchFile: false,
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foreignFfi: false,
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nodeTest: false,
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tls: false,
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cipher: false,
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ecdh: false,
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dh: false,
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pki: false,
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ed25519: false,
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x509: false,
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webcrypto: false,
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perfLoop: false,
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tlsCa: false,
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},
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});
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results.push({ profile, elapsedMs: Math.round((performance.now() - started) * 10) / 10 });
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}
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return { cacheRoot, profiles: results };
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}
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