45 lines
1.0 KiB
JavaScript
45 lines
1.0 KiB
JavaScript
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"use strict";
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const MAX_SSH_AUTH_METHOD_CACHE_ENTRIES = 512;
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function createSshAuthMethodCache(options = {}) {
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const maxEntries = Number.isFinite(options.maxEntries)
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? Math.max(1, Math.floor(options.maxEntries))
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: MAX_SSH_AUTH_METHOD_CACHE_ENTRIES;
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const entries = new Map();
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return {
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get size() {
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return entries.size;
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},
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get(key) {
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const value = entries.get(key);
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if (value === undefined) return undefined;
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entries.delete(key);
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entries.set(key, value);
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return value;
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},
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set(key, value) {
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entries.delete(key);
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entries.set(key, value);
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while (entries.size > maxEntries) {
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const oldestKey = entries.keys().next().value;
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if (oldestKey === undefined) break;
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entries.delete(oldestKey);
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}
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return this;
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},
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delete(key) {
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return entries.delete(key);
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},
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clear() {
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entries.clear();
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},
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};
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}
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module.exports = {
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MAX_SSH_AUTH_METHOD_CACHE_ENTRIES,
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createSshAuthMethodCache,
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};
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