@skyway-sdk/common/dist/promise.js

The official Next Generation JavaScript SDK for SkyWay

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.PromiseQueue = void 0;
const logger_1 = require("./logger");
const log = new logger_1.Logger('packages/common/src/promise.ts');
/**@internal */
class PromiseQueue {
    constructor() {
        this.id = Math.random().toString().slice(2);
        this.queue = [];
        this.running = false;
        this.push = (promise) => new Promise((r, f) => {
            this.queue.push({ promise, done: r, failed: f });
            if (!this.running) {
                this.run().catch((e) => {
                    log.error('push', e);
                });
            }
        });
    }
    run() {
        return __awaiter(this, void 0, void 0, function* () {
            const task = this.queue.shift();
            if (task) {
                this.running = true;
                // log.debug('[start] task', { id: this.id, task });
                try {
                    const res = yield task.promise();
                    task.done(res);
                }
                catch (error) {
                    task.failed(error);
                }
                // log.debug('[end] task', { id: this.id, task });
                yield this.run();
            }
            else {
                this.running = false;
            }
        });
    }
}
exports.PromiseQueue = PromiseQueue;
//# sourceMappingURL=promise.js.map