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0ebf01dc53
```js
const { PerformanceObserver, performance } = require('perf_hooks');
const http = require('http');
const obs = new PerformanceObserver((items) => {
const entry = items.getEntries()[0];
console.log(entry.name, entry.duration);
});
obs.observe({ entryTypes: ['http'] });
const server = http.Server(function(req, res) {
server.close();
res.writeHead(200);
res.end('hello world\n');
});
server.listen(0, function() {
const req = http.request({
port: this.address().port,
path: '/',
method: 'POST'
}).end();
});
```
PR-URL: https://github.com/nodejs/node/pull/28486
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
58 lines
1.2 KiB
JavaScript
58 lines
1.2 KiB
JavaScript
'use strict';
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const { setUnrefTimeout } = require('internal/timers');
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const { PerformanceEntry, notify } = internalBinding('performance');
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var nowCache;
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var utcCache;
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function nowDate() {
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if (!nowCache) cache();
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return nowCache;
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}
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function utcDate() {
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if (!utcCache) cache();
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return utcCache;
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}
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function cache() {
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const d = new Date();
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nowCache = d.valueOf();
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utcCache = d.toUTCString();
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setUnrefTimeout(resetCache, 1000 - d.getMilliseconds());
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}
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function resetCache() {
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nowCache = undefined;
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utcCache = undefined;
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}
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function ondrain() {
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if (this._httpMessage) this._httpMessage.emit('drain');
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}
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class HttpRequestTiming extends PerformanceEntry {
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constructor(statistics) {
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super();
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this.name = 'HttpRequest';
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this.entryType = 'http';
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const startTime = statistics.startTime;
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const diff = process.hrtime(startTime);
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this.duration = diff[0] * 1000 + diff[1] / 1e6;
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this.startTime = startTime[0] * 1000 + startTime[1] / 1e6;
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}
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}
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function emitStatistics(statistics) {
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notify('http', new HttpRequestTiming(statistics));
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}
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module.exports = {
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outHeadersKey: Symbol('outHeadersKey'),
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ondrain,
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nowDate,
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utcDate,
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emitStatistics
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};
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