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Claude
a2f22bb35b
Job workers remembered the files they were sent by path and byte length, so footage replaced by different bytes of the same length at the same path was never resent: a Render Queue export through a reused worker rendered the old image while the page showed the new one. Frame workers remembered paths only, so they never got a replacement at all. Every write of a stored file now gets a version, and both kinds of worker remember the version they were sent. Tests: versions_change_with_every_write (store) and apps/effectcraft-web/tests/workers.mjs (Node, fake Worker: the replacement is sent once, an unchanged file not again). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_018gnTnH3Jmk5zr4tMq1Mc9f
57 lines
2.1 KiB
JavaScript
57 lines
2.1 KiB
JavaScript
// Job-worker plumbing of the web app (js/host.js) under Node with a fake Worker,
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// no browser or Wasm build needed:
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//
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// node apps/effectcraft-web/tests/workers.mjs
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//
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// - A reused worker is sent a file again when it was replaced, even by one of the same size
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// (#218), and not when it is unchanged.
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// Exits non-zero on failure.
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import assert from "node:assert/strict";
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import { dirname, join } from "node:path";
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import { fileURLToPath, pathToFileURL } from "node:url";
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const here = dirname(fileURLToPath(import.meta.url));
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globalThis.self = globalThis;
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// A Worker that starts on "init" and finishes each job at once.
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let failStart = false;
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const workers = [];
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class FakeWorker {
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constructor() {
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this.posted = [];
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this.terminated = false;
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workers.push(this);
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}
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postMessage(m) {
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this.posted.push(m);
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setTimeout(() => {
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if (m.type === "init") {
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if (failStart) this.onerror?.({ message: "worker failed to start" });
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else this.onmessage?.({ data: { type: "ready" } });
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} else if (m.type === "job") {
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this.onmessage?.({ data: { type: "reply", json: "{}", done: true } });
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}
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});
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}
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terminate() {
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this.terminated = true;
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}
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}
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globalThis.Worker = FakeWorker;
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const host = await import(pathToFileURL(join(here, "../js/host.js")));
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const run = (id, files) =>
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new Promise((resolve) => host.workerRun(id, "{}", files, "http://localhost/", (kind, json) => kind !== "file" && resolve({ kind, json })));
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const sent = (w) => w.posted.filter((m) => m.type === "file").map((m) => m.bytes[0]);
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// #218: equal-length replacement.
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const red = new Uint8Array(512).fill(1);
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const blue = new Uint8Array(512).fill(2);
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assert.equal((await run(1, [["/collision.png", red, 1]])).kind, "reply");
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assert.equal((await run(2, [["/collision.png", blue, 2]])).kind, "reply");
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assert.equal((await run(3, [["/collision.png", blue, 2]])).kind, "reply");
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assert.equal(workers.length, 1, "the worker is reused");
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assert.deepEqual(sent(workers[0]), [1, 2], "the replacement is sent once, the unchanged file not again");
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console.log("workers: ok");
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