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'use strict';
require('../common');
const assert = require('assert');
const BUFSIZE = 1024;
switch (process.argv[2]) {
case undefined:
return parent();
case 'child':
return child();
default:
throw new Error('wtf?');
}
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', function() {
assert.strictEqual(+n, sent);
console.log('ok');
});
// Write until the buffer fills up.
let buf;
do {
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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