forked from mirrors/firefish
34 lines
878 B
TypeScript
34 lines
878 B
TypeScript
import { redisClient } from "../db/redis.js";
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import { promisify } from "node:util";
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import redisLock from "redis-lock";
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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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const lock: (key: string, timeout?: number) => Promise<() => void> = redisClient
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? promisify(redisLock(redisClient, retryDelay))
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: async () => () => {};
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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 function getApLock(uri: string, timeout = 30 * 1000) {
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return lock(`ap-object:${uri}`, timeout);
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}
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export function getFetchInstanceMetadataLock(
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host: string,
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timeout = 30 * 1000,
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) {
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return lock(`instance:${host}`, timeout);
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}
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export function getChartInsertLock(lockKey: string, timeout = 30 * 1000) {
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return lock(`chart-insert:${lockKey}`, timeout);
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}
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