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2231b21ed0
Reviewed By: bestander Differential Revision: D3606098 fbshipit-source-id: ec55030dd1b3a27f0595650da1ce01fe1ac9116c
37 lines
1.0 KiB
JavaScript
37 lines
1.0 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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'use strict';
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const fs = require('fs');
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module.exports = function(req, res, next) {
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if (req.url !== '/jsc-profile') {
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next();
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return;
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}
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console.log('Dumping JSC profile information...');
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const dumpName = '/tmp/jsc-profile_' + Date.now() + '.cpuprofile';
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fs.writeFile(dumpName, req.rawBody, (err) => {
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var response = '';
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if (err) {
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response =
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'An error occured when trying to save the profile at ' + dumpName;
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console.error(response, err);
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} else {
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response =
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'Your profile was generated at\n\n' + dumpName + '\n\n' +
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'Open `Chrome Dev Tools > Profiles > Load` '
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+ 'and select the profile to visualize it.';
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console.log(response);
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}
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res.end(response);
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});
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};
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