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source-queue.js
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33 lines (28 loc) · 747 Bytes
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import { throttle } from "lodash";
let newSources;
let createSource;
let supportsWasm = false;
let queuedSources;
let currentWork;
async function dispatchNewSources() {
const sources = queuedSources;
queuedSources = [];
currentWork = await newSources(
sources.map(source => createSource(source, { supportsWasm }))
);
}
const queue = throttle(dispatchNewSources, 100);
export default {
initialize: options => {
newSources = options.actions.newSources;
createSource = options.createSource;
supportsWasm = options.supportsWasm;
queuedSources = [];
},
queue: source => {
queuedSources.push(source);
queue();
},
flush: () => Promise.all([queue.flush(), currentWork]),
clear: () => queue.cancel()
};