67 lines
1.7 KiB
JavaScript
67 lines
1.7 KiB
JavaScript
// src/common/AsyncQueue.ts
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function createAsyncQueue(opts = { dedupeConcurrent: false }) {
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const { dedupeConcurrent } = opts;
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let queue = [];
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let running;
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let nextPromise = new DeferredPromise();
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const push = (task) => {
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let taskPromise = new DeferredPromise();
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if (dedupeConcurrent) {
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queue = [];
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if (nextPromise.started) nextPromise = new DeferredPromise();
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taskPromise = nextPromise;
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}
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queue.push(() => {
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taskPromise.started = true;
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task().then(taskPromise.resolve).catch(taskPromise.reject);
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return taskPromise.promise;
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});
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if (!running) running = start();
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return taskPromise.promise;
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};
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const start = async () => {
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while (queue.length) {
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const task = queue.shift();
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await task().catch(() => {
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});
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}
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running = void 0;
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};
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return {
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push,
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flush: () => running || Promise.resolve(),
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get size() {
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return queue.length;
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}
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};
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}
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var createAsyncQueues = (opts = { dedupeConcurrent: false }) => {
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const queues = {};
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const push = (queueId, task) => {
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if (!queues[queueId]) queues[queueId] = createAsyncQueue(opts);
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return queues[queueId].push(task);
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};
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const flush = (queueId) => {
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if (!queues[queueId]) queues[queueId] = createAsyncQueue(opts);
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return queues[queueId].flush();
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};
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return { push, flush };
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};
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var DeferredPromise = class {
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constructor() {
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this.started = false;
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this.resolve = () => {
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};
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this.reject = () => {
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};
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this.promise = new Promise((res, rej) => {
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this.resolve = res;
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this.reject = rej;
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});
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}
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};
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export {
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createAsyncQueue,
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createAsyncQueues
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};
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//# sourceMappingURL=AsyncQueue.js.map
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