mirror of https://github.com/louislam/uptime-kuma
60 lines
1.2 KiB
JavaScript
60 lines
1.2 KiB
JavaScript
function MemoryCache() {
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this.cache = {};
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this.size = 0;
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}
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MemoryCache.prototype.add = function (key, value, time, timeoutCallback) {
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let old = this.cache[key];
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let instance = this;
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let entry = {
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value: value,
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expire: time + Date.now(),
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timeout: setTimeout(function () {
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instance.delete(key);
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return timeoutCallback && typeof timeoutCallback === "function" && timeoutCallback(value, key);
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}, time)
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};
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this.cache[key] = entry;
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this.size = Object.keys(this.cache).length;
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return entry;
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};
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MemoryCache.prototype.delete = function (key) {
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let entry = this.cache[key];
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if (entry) {
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clearTimeout(entry.timeout);
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}
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delete this.cache[key];
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this.size = Object.keys(this.cache).length;
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return null;
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};
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MemoryCache.prototype.get = function (key) {
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let entry = this.cache[key];
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return entry;
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};
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MemoryCache.prototype.getValue = function (key) {
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let entry = this.get(key);
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return entry && entry.value;
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};
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MemoryCache.prototype.clear = function () {
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Object.keys(this.cache).forEach(function (key) {
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this.delete(key);
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}, this);
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return true;
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};
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module.exports = MemoryCache;
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