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[feature] make client-side nonce calculation multi-threaded (#4219)

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# Description

Thank you in part to f0x for nerd-sniping me into banging this together :p

## Checklist

- [x] I/we have read the [GoToSocial contribution guidelines](https://codeberg.org/superseriousbusiness/gotosocial/src/branch/main/CONTRIBUTING.md).
- [x] I/we have discussed the proposed changes already, either in an issue on the repository, or in the Matrix chat.
- [x] I/we have not leveraged AI to create the proposed changes.
- [x] I/we have performed a self-review of added code.
- [x] I/we have written code that is legible and maintainable by others.
- [x] I/we have commented the added code, particularly in hard-to-understand areas.
- [ ] I/we have made any necessary changes to documentation.
- [ ] I/we have added tests that cover new code.
- [x] I/we have run tests and they pass locally with the changes.
- [x] I/we have run `go fmt ./...` and `golangci-lint run`.

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4219
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>
This commit is contained in:
kim 2025-05-31 13:45:32 +02:00 • committed by tobi
commit a82d574acc
2 changed files with 81 additions and 45 deletions
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106
web/source/nollamas/index.js
View file

@ -45,51 +45,85 @@ document.addEventListener("DOMContentLoaded", function() {
// data attributes on the nollamas section.
const seed = nollamas.dataset.nollamasSeed;
const challenge = nollamas.dataset.nollamasChallenge;
const threads = navigator.hardwareConcurrency;
if (typeof(threads) != "number" || threads < 1) { threads = 1; }
console.log("seed:", seed); // eslint-disable-line no-console
console.log("challenge:", challenge); // eslint-disable-line no-console
console.log("threads:", threads); // eslint-disable-line no-console
// Prepare the worker with task function.
const worker = new Worker("/assets/dist/nollamasworker.js");
// Create an array to track
// all workers such that we
// can terminate them all.
const workers = [];
const terminateAll = () => { workers.forEach((worker) => worker.terminate() ); };
// Get time before task completion.
const startTime = performance.now();
worker.postMessage({
challenge: challenge,
seed: seed,
});
// Set the main worker function.
worker.onmessage = function (e) {
if (e.data.done) {
const endTime = performance.now();
const duration = endTime - startTime;
// Prepare and start each worker,
// adding them to the workers array.
for (let i = 0; i < threads; i++) {
const worker = new Worker("/assets/dist/nollamasworker.js");
workers.push(worker);
// Remove spinner and replace it with a tick
// and info about how long it took to solve.
nollamas.removeChild(spinner);
const solutionWrapper = document.createElement("div");
solutionWrapper.className = "nollamas-status";
// On any error terminate.
worker.onerror = (ev) => {
console.error("worker error:", ev); // eslint-disable-line no-console
terminateAll();
};
const tick = document.createElement("i");
tick.className = "fa fa-check fa-2x fa-fw";
tick.setAttribute("title","Solved!");
tick.setAttribute("aria-label", "Solved!");
solutionWrapper.appendChild(tick);
// Post worker message, where each
// worker will compute nonces in range:
// $threadNumber + $totalThreads * n
worker.postMessage({
challenge: challenge,
threads: threads,
thread: i,
seed: seed,
});
const took = document.createElement("span");
const solvedText = `Solved after ${e.data.nonce} iterations, in ${duration.toString()}ms!`;
took.appendChild(document.createTextNode(solvedText));
solutionWrapper.appendChild(took);
// Set main on-success function.
worker.onmessage = function (e) {
if (e.data.done) {
// Stop workers.
terminateAll();
nollamas.appendChild(solutionWrapper);
// Log which thread found the solution.
console.log("solution from:", e.data.thread); // eslint-disable-line no-console
// Wait for 500ms before redirecting, to give
// visitors a shot at reading the message, but
// not so long that they have to wait unduly.
setTimeout(() => {
let url = new URL(window.location.href);
url.searchParams.set("nollamas_solution", e.data.nonce);
window.location.replace(url.toString());
}, 500);
}
};
// Get total computation duration.
const endTime = performance.now();
const duration = endTime - startTime;
// Remove spinner and replace it with a tick
// and info about how long it took to solve.
nollamas.removeChild(spinner);
const solutionWrapper = document.createElement("div");
solutionWrapper.className = "nollamas-status";
const tick = document.createElement("i");
tick.className = "fa fa-check fa-2x fa-fw";
tick.setAttribute("title","Solved!");
tick.setAttribute("aria-label", "Solved!");
solutionWrapper.appendChild(tick);
const took = document.createElement("span");
const solvedText = `Solved after ${e.data.nonce} iterations by worker ${e.data.thread} of ${threads}, in ${duration.toString()}ms!`;
took.appendChild(document.createTextNode(solvedText));
solutionWrapper.appendChild(took);
nollamas.appendChild(solutionWrapper);
// Wait for 500ms before redirecting, to give
// visitors a shot at reading the message, but
// not so long that they have to wait unduly.
setTimeout(() => {
let url = new URL(window.location.href);
url.searchParams.set("nollamas_solution", e.data.nonce);
window.location.replace(url.toString());
}, 500);
}
};
}
});