bitcore-wallet-service/ts_build/lib/lock.js

A service for Mutisig HD Bitcoin Wallets

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Lock = void 0;
const lodash_1 = __importDefault(require("lodash"));
const common_1 = require("./common");
const errordefinitions_1 = require("./errors/errordefinitions");
const $ = require('preconditions').singleton();
const Defaults = common_1.Common.Defaults;
const ACQUIRE_RETRY_STEP = 50;
class Lock {
    constructor(storage, opts = {}) {
        opts = opts || {};
        this.storage = storage;
    }
    acquire(token, opts, cb, timeLeft) {
        opts = opts || {};
        opts.lockTime = opts.lockTime || Defaults.LOCK_EXE_TIME;
        this.storage.acquireLock(token, Date.now() + opts.lockTime, err => {
            if (err && err.message && err.message.indexOf('E11000 ') !== -1) {
                this.storage.clearExpiredLock(token, () => { });
                if (timeLeft < 0) {
                    return cb('LOCKED');
                }
                if (!lodash_1.default.isUndefined(opts.waitTime)) {
                    if (lodash_1.default.isUndefined(timeLeft)) {
                        timeLeft = opts.waitTime;
                    }
                    else {
                        timeLeft -= ACQUIRE_RETRY_STEP;
                    }
                }
                return setTimeout(this.acquire.bind(this, token, opts, cb, timeLeft), ACQUIRE_RETRY_STEP);
            }
            else if (err) {
                return cb(err);
            }
            else {
                return cb(null, icb => {
                    if (!icb)
                        icb = () => { };
                    this.storage.releaseLock(token, icb);
                });
            }
        });
    }
    runLocked(token, opts, cb, task) {
        $.shouldBeDefined(token, 'Failed state: token undefined at <runLocked()>');
        this.acquire(token, opts, (err, release) => {
            if (err == 'LOCKED')
                return cb(errordefinitions_1.Errors.WALLET_BUSY);
            if (err)
                return cb(err);
            const _cb = function () {
                cb.apply(null, arguments);
                release();
            };
            task(_cb);
        });
    }
}
exports.Lock = Lock;
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