signal-desktop/ts/jobs/helpers/InMemoryQueues.ts
2021-10-29 18:19:44 -05:00

23 lines
527 B
TypeScript

// Copyright 2021 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import PQueue from 'p-queue';
export class InMemoryQueues {
private readonly queues = new Map<string, PQueue>();
get(key: string): PQueue {
const existingQueue = this.queues.get(key);
if (existingQueue) {
return existingQueue;
}
const newQueue = new PQueue({ concurrency: 1 });
newQueue.once('idle', () => {
this.queues.delete(key);
});
this.queues.set(key, newQueue);
return newQueue;
}
}