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Added PruneCallback #38

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Added PruneCallback #38

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77feba4
Added PruneCallback to cache.ts
Duell10111 Jan 26, 2021
69c0012
Changed to call callback only when victimlist is not empty
Duell10111 Jan 26, 2021
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7 changes: 7 additions & 0 deletions src/cache.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ export interface ICacheOptions {
backend: any;
namespace: string;
policy: ICachePolicy;
prunecallback? : ((keys : string[]) => void);
}

export interface ICachePolicy {
Expand All @@ -14,11 +15,13 @@ export default class Cache {
protected backend: any;
protected namespace: string;
protected policy: ICachePolicy;
protected prunecallback? : ((keys : string[]) => void);

constructor(options: ICacheOptions) {
this.namespace = options.namespace;
this.backend = options.backend;
this.policy = options.policy;
this.prunecallback = options.prunecallback;
let ttl = this.policy.stdTTL;
if (!ttl || typeof(ttl) !== 'number') {
ttl = 0;
Expand Down Expand Up @@ -53,6 +56,10 @@ export default class Cache {

await Promise.all(removePromises);

if(this.prunecallback !== undefined && victimList.length > 0){
this.prunecallback(victimList);
}

const survivorList = lru.slice(victimCount);
return this.setLRU(survivorList);
}
Expand Down