mirror of
https://github.com/logos-storage/codex-factory.git
synced 2026-01-02 13:03:07 +00:00
e61f2cb8a1
* feat: generate random bytes and push to the binded nodes * fix: npm reinstall * fix: version dumps in package.json * ci: bump version number of node * feat: payment-tolerance * refactor: gen 400 chunks with the trafficgen command * feat: parametric traffic generation * docs: amend beeShPorts description * docs: readme * fix: payment tolerance default value in bee.sh * refactor: only beeApiUrl argument on script call * docs: traffic gen readme adjustment * refactor: instead of payment tolerance use payment threshold * refactor: sleep ms raise and take out unnecessary axios call * chore: await for upload, the script no longer overloads bee nodes with data (#27) Co-authored-by: Vojtech Simetka <vojtech@simetka.cz>
70 lines
1.9 KiB
JavaScript
70 lines
1.9 KiB
JavaScript
const axios = require('axios').default;
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const Bee = require('@ethersphere/bee-js').Bee;
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const SLEEP_BETWEEN_UPLOADS_MS = 1000
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/**
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* Lehmer random number generator with seed (minstd_rand in C++11)
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* !!! Very fast but not well distributed pseudo-random function !!!
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*
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* @param seed Seed for the pseudo-random generator
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*/
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function lrng(seed) {
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return () => ((2 ** 31 - 1) & (seed = Math.imul(48271, seed))) / 2 ** 31
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}
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/**
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* Utility function for generating random Buffer
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* !!! IT IS NOT CRYPTO SAFE !!!
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* For that use `crypto.randomBytes()`
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*
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* @param length Number of bytes to generate
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* @param seed Seed for the pseudo-random generator
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*/
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function randomByteArray(length, seed = 500) {
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const rand = lrng(seed)
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const buf = new Uint8Array(length)
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for (let i = 0; i < length; ++i) {
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buf[i] = (rand() * 0xff) << 0
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}
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return buf
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}
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async function trafficGen(host = 'http://localhost:1633', seed = 500, bytes = 1024 * 4 * 400) {
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const randomBytes = randomByteArray(bytes, seed)
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const bee = new Bee(host)
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const ref = await bee.uploadData(randomBytes)
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console.log(`Generated ${bytes} bytes traffic, the random data's root reference: ${ref}`)
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}
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/**
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* Generate traffic on Bee node(s)
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*
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* @param beeApiUrls Bee API URLs where the random generated data will be sent to.
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*/
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async function genTrafficOnOpenPorts(beeApiUrls) {
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const promises = beeApiUrls.map((url) => {
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console.log(`Generate Swarm Chunk traffic on ${url}...`)
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return trafficGen(url, new Date().getTime())
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})
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await Promise.all(promises)
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}
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function sleep(ms) {
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return new Promise(resolve => setTimeout(resolve, ms));
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}
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async function genTrafficLoop(hosts) {
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while(true) {
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await genTrafficOnOpenPorts(hosts)
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await sleep(SLEEP_BETWEEN_UPLOADS_MS)
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}
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}
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const inputArray = process.argv.slice(2)
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const hosts = inputArray.length > 0 ? inputArray : [ 'http://localhost:1633' ]
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genTrafficLoop(hosts)
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