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nodejs/tools/v8-prof/tick-processor.js
Matt Loring e0c3d2ad57 tools: single, cross-platform tick processor
Currently there are three separate tick processor scripts for
mac, windows, and linux. These have been replaced with a single
node.js script to improve maintainability and remove the need
to preserve parallel logic in these separate places.

PR-URL: https://github.com/nodejs/node/pull/2868
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
2015-09-18 02:20:25 +02:00

52 lines
1.8 KiB
JavaScript

'use strict';
var cp = require('child_process');
var fs = require('fs');
var path = require('path');
var toolsPath = path.join(__dirname, '..', '..', 'deps', 'v8', 'tools');
var scriptFiles = [
path.join(__dirname, 'polyfill.js'),
path.join(toolsPath, 'splaytree.js'),
path.join(toolsPath, 'codemap.js'),
path.join(toolsPath, 'csvparser.js'),
path.join(toolsPath, 'consarray.js'),
path.join(toolsPath, 'csvparser.js'),
path.join(toolsPath, 'consarray.js'),
path.join(toolsPath, 'profile.js'),
path.join(toolsPath, 'profile_view.js'),
path.join(toolsPath, 'logreader.js'),
path.join(toolsPath, 'tickprocessor.js'),
path.join(toolsPath, 'SourceMap.js'),
path.join(toolsPath, 'tickprocessor-driver.js')];
var tempScript = path.join(__dirname, 'tick-processor-tmp-' + process.pid);
process.on('exit', function() {
try { fs.unlinkSync(tempScript); } catch (e) {}
});
process.on('uncaughtException', function(err) {
try { fs.unlinkSync(tempScript); } catch (e) {}
throw err;
});
var inStreams = scriptFiles.map(function(f) {
return fs.createReadStream(f);
});
var outStream = fs.createWriteStream(tempScript);
inStreams.reduce(function(prev, curr, i) {
prev.on('end', function() {
curr.pipe(outStream, { end: i === inStreams.length - 1});
});
return curr;
});
inStreams[0].pipe(outStream, { end: false });
outStream.on('close', function() {
var tickArguments = [tempScript];
if (process.platform === 'darwin') {
tickArguments.push('--mac', '--nm=' + path.join(toolsPath, 'mac-nm'));
} else if (process.platform === 'win32') {
tickArguments.push('--windows');
}
tickArguments.push.apply(tickArguments, process.argv.slice(2));
var processTicks = cp.spawn(process.execPath, tickArguments, { stdio: 'inherit' });
});