Method lock

src/misc.ts:368–379

()

	private resolverQueue: (() => void)[] = [];

	lock() {
		if (!this.locked) {
			// Fast path
			this.locked = true;
			return this.createLock(false, null);
		}

		const { promise, resolve } = promiseWithResolvers();
		this.resolverQueue.push(resolve);

		return this.createLock(true, promise);
	}

	private createLock(pending: boolean, ready: Promise<void> | null): AsyncMutexLock {
		let released = false;