49 lines
1.1 KiB
TypeScript
49 lines
1.1 KiB
TypeScript
import { redisClient } from "../db/redis.js";
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import { Mutex } from "redis-semaphore";
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/**
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* Retry delay (ms) for lock acquisition
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*/
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const retryDelay = 100;
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/**
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* Get AP Object lock
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* @param uri AP object ID
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* @param timeout Lock timeout (ms), The timeout releases previous lock.
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* @returns Unlock function
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*/
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export async function getApLock(
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uri: string,
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timeout = 30 * 1000,
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): Promise<Mutex> {
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const lock = new Mutex(redisClient, `ap-object:${uri}`, {
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lockTimeout: timeout,
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retryInterval: retryDelay,
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});
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await lock.acquire();
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return lock;
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}
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export async function getFetchInstanceMetadataLock(
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host: string,
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timeout = 30 * 1000,
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): Promise<Mutex> {
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const lock = new Mutex(redisClient, `instance:${host}`, {
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lockTimeout: timeout,
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retryInterval: retryDelay,
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});
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await lock.acquire();
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return lock;
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}
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export async function getChartInsertLock(
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lockKey: string,
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timeout = 30 * 1000,
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): Promise<Mutex> {
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const lock = new Mutex(redisClient, `chart-insert:${lockKey}`, {
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lockTimeout: timeout,
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retryInterval: retryDelay,
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});
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await lock.acquire();
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return lock;
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}
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