node-worker-threads-pool-ts/src/promise-with-timer.js

Simple worker threads pool using Node's worker_threads module. Compatible with ES6+ Promise, Typescript, Async/Await.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PromiseWithTimer = exports.isTimeoutError = void 0;
class TimeoutError extends Error {
    constructor(message) {
        super(message);
        this.name = "TimeoutError";
    }
}
/**
 * Detect if error is a Timeout error.
 */
function isTimeoutError(err) {
    return err instanceof TimeoutError;
}
exports.isTimeoutError = isTimeoutError;
class PromiseWithTimer {
    constructor(p, timeout) {
        this.p = p;
        this.timeout = timeout;
        this.timeoutSymbol = Symbol("timeoutSymbol");
    }
    _createTimer() {
        return new Promise((resolve) => {
            this.timerID = setTimeout(resolve, this.timeout, this.timeoutSymbol);
        });
    }
    async startRace() {
        if (this.timeout <= 0) {
            return await this.p;
        }
        const result = await Promise.race([this.p, this._createTimer()]);
        if (result === this.timeoutSymbol) {
            throw new TimeoutError("timeout");
        }
        if (this.timerID)
            clearTimeout(this.timerID);
        return result;
    }
}
exports.PromiseWithTimer = PromiseWithTimer;
//# sourceMappingURL=promise-with-timer.js.map