n8n/dist/commands/ttwf/worker-pool.js

n8n Workflow Automation Tool

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.WorkerPool = void 0;
class WorkerPool {
    constructor(maxWorkers) {
        this.maxWorkers = maxWorkers;
        this.queue = [];
        this.activeWorkers = 0;
    }
    async execute(task) {
        if (this.activeWorkers < this.maxWorkers) {
            this.activeWorkers++;
            try {
                const result = await task();
                this.activeWorkers--;
                this.processQueue();
                return result;
            }
            catch (error) {
                this.activeWorkers--;
                this.processQueue();
                throw error;
            }
        }
        return await new Promise((resolve, reject) => {
            this.queue.push(async () => {
                try {
                    const result = await task();
                    resolve(result);
                    return result;
                }
                catch (error) {
                    reject(error);
                    throw error;
                }
            });
        });
    }
    processQueue() {
        if (this.queue.length > 0 && this.activeWorkers < this.maxWorkers) {
            const task = this.queue.shift();
            void this.execute(task);
        }
    }
}
exports.WorkerPool = WorkerPool;
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