mirror of https://github.com/nodejs/node.git
46 lines
1.2 KiB
JavaScript
46 lines
1.2 KiB
JavaScript
'use strict';
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const common = require('../common');
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const { isMainThread } = require('worker_threads');
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if (!isMainThread) {
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common.skip("Workers don't have process-like stdio");
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}
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// Test if Node handles redirecting one child process stdout to another
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// process stdin without crashing.
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const spawn = require('child_process').spawn;
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const writeSize = 100;
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const totalDots = 10000;
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const who = process.argv.length <= 2 ? 'parent' : process.argv[2];
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switch (who) {
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case 'parent': {
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const consumer = spawn(process.argv0, [process.argv[1], 'consumer'], {
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stdio: ['pipe', 'ignore', 'inherit'],
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});
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const producer = spawn(process.argv0, [process.argv[1], 'producer'], {
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stdio: ['pipe', consumer.stdin, 'inherit'],
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});
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process.stdin.on('data', () => {});
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producer.on('exit', process.exit);
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break;
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}
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case 'producer': {
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const buffer = Buffer.alloc(writeSize, '.');
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let written = 0;
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const write = () => {
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if (written < totalDots) {
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written += writeSize;
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process.stdout.write(buffer, write);
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}
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};
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write();
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break;
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}
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case 'consumer':
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process.stdin.on('data', () => {});
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break;
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}
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