nano-wallet-js/dist/esm/wallet/Locker.js

SDK for developers to create and interact with Nanocurrency wallet easily

export default class Locker {
    isLocked = false;
    queue = [];
    async acquire() {
        if (!this.isLocked) {
            this.isLocked = true;
            return;
        }
        return new Promise(resolve => {
            this.queue.push(resolve);
        });
    }
    release() {
        if (this.queue.length > 0) {
            const nextResolve = this.queue.shift();
            nextResolve && nextResolve(true);
        }
        else {
            this.isLocked = false;
        }
    }
}