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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const common = require('../common');
const assert = require('assert');
let bufsize = 0;
switch (process.argv[2]) {
case undefined:
return parent();
case 'child':
return child();
default:
throw new Error('invalid');
}
function parent() {
const spawn = require('child_process').spawn;
const child = spawn(process.execPath, [__filename, 'child']);
let sent = 0;
let n = '';
child.stdout.setEncoding('ascii');
child.stdout.on('data', function(c) {
n += c;
});
child.stdout.on('end', common.mustCall(function() {
assert.strictEqual(+n, sent);
console.log('ok');
}));
// Write until the buffer fills up.
let buf;
do {
bufsize += 1024;
buf = Buffer.alloc(bufsize, '.');
sent += bufsize;
} while (child.stdin.write(buf));
// Then write a bunch more times.
for (let i = 0; i < 100; i++) {
const buf = Buffer.alloc(bufsize, '.');
sent += bufsize;
child.stdin.write(buf);
}
// Now end, before it's all flushed.
child.stdin.end();
// now we wait...
}
function child() {
let received = 0;
process.stdin.on('data', function(c) {
received += c.length;
});
process.stdin.on('end', function() {
console.log(received);
});
}
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