From fa68751a19877474bf78a80ef7204102296f0f17 Mon Sep 17 00:00:00 2001 From: Hazelnoot Date: Sun, 8 Jun 2025 19:52:59 -0400 Subject: normalize userFollowingsCache / userFollowersCache and add hibernatedUserCache to reduce the number of cache-clears and allow use of caching in many more places --- packages/backend/src/misc/cache.ts | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) (limited to 'packages/backend/src/misc/cache.ts') diff --git a/packages/backend/src/misc/cache.ts b/packages/backend/src/misc/cache.ts index 932c0b409a..666e684c1c 100644 --- a/packages/backend/src/misc/cache.ts +++ b/packages/backend/src/misc/cache.ts @@ -5,8 +5,6 @@ import * as Redis from 'ioredis'; import { bindThis } from '@/decorators.js'; -import { InternalEventService } from '@/core/InternalEventService.js'; -import { InternalEventTypes } from '@/core/GlobalEventService.js'; export class RedisKVCache { private readonly lifetime: number; @@ -120,9 +118,9 @@ export class RedisKVCache { export class RedisSingleCache { private readonly lifetime: number; private readonly memoryCache: MemorySingleCache; - private readonly fetcher: () => Promise; - private readonly toRedisConverter: (value: T) => string; - private readonly fromRedisConverter: (value: string) => T | undefined; + public readonly fetcher: () => Promise; + public readonly toRedisConverter: (value: T) => string; + public readonly fromRedisConverter: (value: string) => T | undefined; constructor( private redisClient: Redis.Redis, @@ -245,6 +243,16 @@ export class MemoryKVCache { return cached.value; } + public has(key: string): boolean { + const cached = this.cache.get(key); + if (cached == null) return false; + if ((Date.now() - cached.date) > this.lifetime) { + this.cache.delete(key); + return false; + } + return true; + } + @bindThis public delete(key: string): void { this.cache.delete(key); -- cgit v1.2.3-freya