54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
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/**
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* Bounded Registry with LRU eviction
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* Prevents unbounded memory growth in production
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*/
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export class BoundedRegistry {
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constructor(maxSize = 10000) {
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this.items = new Map(); // item -> last accessed timestamp
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this.maxSize = maxSize;
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}
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/**
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* Add item to registry, evicting oldest if at capacity
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*/
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add(item) {
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// Update timestamp if already exists
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if (this.items.has(item)) {
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this.items.delete(item); // Remove to re-add at end
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this.items.set(item, Date.now());
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return;
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}
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// Evict oldest if at capacity
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if (this.items.size >= this.maxSize) {
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const oldest = this.items.entries().next().value;
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if (oldest) {
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this.items.delete(oldest[0]);
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}
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}
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this.items.set(item, Date.now());
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}
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/**
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* Check if item exists
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*/
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has(item) {
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return this.items.has(item);
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}
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/**
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* Get all items
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*/
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getAll() {
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return Array.from(this.items.keys());
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}
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/**
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* Get size
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*/
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get size() {
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return this.items.size;
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}
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/**
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* Clear all items
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*/
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clear() {
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this.items.clear();
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}
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}
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//# sourceMappingURL=BoundedRegistry.js.map
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