@mazix/n8n-nodes-converter-documents/dist/utils/promisePool.js

n8n node to convert various document formats (DOCX, DOC, XML, YML, XLSX, CSV, PDF, TXT, PPT, PPTX, HTML, JSON, ODT, ODP, ODS) to JSON or text format

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.promisePool = promisePool;
/**
 * Promise pool для ограничения количества одновременных задач
 * Использует Set вместо Array для корректного удаления (fix race condition)
 */
async function promisePool(items, worker, concurrency) {
    const results = [];
    let i = 0;
    const executing = new Set();
    async function enqueue() {
        if (i >= items.length)
            return;
        const currentIndex = i++;
        const p = worker(items[currentIndex], currentIndex).then((res) => {
            results[currentIndex] = res;
        });
        const wrapped = p.then(() => {
            executing.delete(wrapped);
        });
        executing.add(wrapped);
        if (executing.size < concurrency) {
            await enqueue();
        }
        else {
            await Promise.race(executing);
            await enqueue();
        }
    }
    await enqueue();
    await Promise.all(executing);
    return results;
}
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