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3ff723f940
Add support for metadata events. At this point they are added to the main buffer. Emit a metadata event for the main thread. PR-URL: https://github.com/nodejs/node/pull/20757 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
27 lines
874 B
JavaScript
27 lines
874 B
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const cp = require('child_process');
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const fs = require('fs');
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const CODE =
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'setTimeout(() => { for (var i = 0; i < 100000; i++) { "test" + i } }, 1)';
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const FILE_NAME = 'node_trace.1.log';
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const tmpdir = require('../common/tmpdir');
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tmpdir.refresh();
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process.chdir(tmpdir.path);
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const proc = cp.spawn(process.execPath,
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[ '--trace-events-enabled', '-e', CODE ]);
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proc.once('exit', common.mustCall(() => {
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assert(common.fileExists(FILE_NAME));
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fs.readFile(FILE_NAME, common.mustCall((err, data) => {
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const traces = JSON.parse(data.toString()).traceEvents;
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assert(traces.length > 0);
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assert(traces.some((trace) =>
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trace.cat === '__metadata' && trace.name === 'thread_name' &&
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trace.args.name === 'JavaScriptMainThread'));
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}));
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}));
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