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ab70c96a79
- Refactor the C++ class to be resuable for other types of profiles - Move the try-catch block around coverage collection callback to be inside the callback to silence potential JSON or write errors. - Use Function::Call instead of MakeCallback to call the coverage message callback since it does not actually need async hook handling. This way we no longer needs to disable the async hooks when writing the coverage results. - Renames `lib/internal/coverage-gen/with_profiler.js` to `lib/internal/profiler.js` because it is now the only way to generate coverage. PR-URL: https://github.com/nodejs/node/pull/26513 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ben Coe <bencoe@gmail.com>
44 lines
1.0 KiB
JavaScript
44 lines
1.0 KiB
JavaScript
'use strict';
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// Implements coverage collection exposed by the `NODE_V8_COVERAGE`
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// environment variable which can also be used in the user land.
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let coverageDirectory;
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function writeCoverage() {
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const { join } = require('path');
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const { mkdirSync, writeFileSync } = require('fs');
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const { threadId } = require('internal/worker');
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const filename = `coverage-${process.pid}-${Date.now()}-${threadId}.json`;
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try {
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mkdirSync(coverageDirectory, { recursive: true });
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} catch (err) {
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if (err.code !== 'EEXIST') {
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console.error(err);
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return;
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}
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}
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const target = join(coverageDirectory, filename);
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internalBinding('profiler').endCoverage((msg) => {
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try {
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const coverageInfo = JSON.parse(msg).result;
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if (coverageInfo) {
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writeFileSync(target, JSON.stringify(coverageInfo));
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}
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} catch (err) {
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console.error(err);
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}
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});
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}
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function setCoverageDirectory(dir) {
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coverageDirectory = dir;
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}
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module.exports = {
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writeCoverage,
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setCoverageDirectory
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};
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