66 lines
1.4 KiB
JavaScript
66 lines
1.4 KiB
JavaScript
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'use strict';
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require('../common');
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const fs = require('fs');
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const cp = require('child_process');
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const path = require('path');
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const tmpdir = require('../common/tmpdir');
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tmpdir.refresh();
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const LOG_FILE = path.join(tmpdir.path, 'tick-processor.log');
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const RETRY_TIMEOUT = 150;
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function runTest(test) {
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const proc = cp.spawn(process.execPath, [
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'--no_logfile_per_isolate',
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'--logfile=-',
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'--prof',
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'-pe', test.code
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], {
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stdio: [ 'ignore', 'pipe', 'inherit' ]
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});
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let ticks = '';
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proc.stdout.on('data', (chunk) => ticks += chunk);
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// Try to match after timeout
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setTimeout(() => {
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match(test.pattern, proc, () => ticks, test.profProcessFlags);
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}, RETRY_TIMEOUT);
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}
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function match(pattern, parent, ticks, flags = []) {
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// Store current ticks log
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fs.writeFileSync(LOG_FILE, ticks());
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const proc = cp.spawn(process.execPath, [
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'--prof-process',
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'--call-graph-size=10',
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...flags,
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LOG_FILE
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], {
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stdio: [ 'ignore', 'pipe', 'inherit' ]
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});
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let out = '';
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proc.stdout.on('data', (chunk) => out += chunk);
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proc.stdout.once('end', () => {
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proc.once('exit', () => {
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fs.unlinkSync(LOG_FILE);
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// Retry after timeout
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if (!pattern.test(out))
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return setTimeout(() => match(pattern, parent, ticks), RETRY_TIMEOUT);
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parent.stdout.removeAllListeners();
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parent.kill();
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});
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proc.stdout.removeAllListeners();
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proc.kill();
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});
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}
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exports.runTest = runTest;
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