1// Copyright Joyent, Inc. and other Node contributors. 2// 3// Permission is hereby granted, free of charge, to any person obtaining a 4// copy of this software and associated documentation files (the 5// "Software"), to deal in the Software without restriction, including 6// without limitation the rights to use, copy, modify, merge, publish, 7// distribute, sublicense, and/or sell copies of the Software, and to permit 8// persons to whom the Software is furnished to do so, subject to the 9// following conditions: 10// 11// The above copyright notice and this permission notice shall be included 12// in all copies or substantial portions of the Software. 13// 14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 15// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN 17// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 18// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 19// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 20// USE OR OTHER DEALINGS IN THE SOFTWARE. 21 22'use strict'; 23require('../common'); 24 25// Open a chain of five Node processes each a child of the next. The final 26// process exits immediately. Each process in the chain is instructed to exit 27// when its child exits. 28// https://github.com/joyent/node/issues/1726 29 30const assert = require('assert'); 31const ch = require('child_process'); 32 33const gen = +(process.argv[2] || 0); 34const maxGen = 5; 35 36 37if (gen === maxGen) { 38 console.error('hit maxGen, exiting', maxGen); 39 return; 40} 41 42const child = ch.spawn(process.execPath, [__filename, gen + 1], { 43 stdio: [ 'ignore', 'pipe', 'ignore' ] 44}); 45assert.ok(!child.stdin); 46assert.ok(child.stdout); 47assert.ok(!child.stderr); 48 49console.error('gen=%d, pid=%d', gen, process.pid); 50 51child.on('exit', function(code) { 52 console.error('exit %d from gen %d', code, gen + 1); 53}); 54 55child.stdout.pipe(process.stdout); 56 57child.stdout.on('close', function() { 58 console.error('child.stdout close gen=%d', gen); 59}); 60