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nodejs/test/parallel/test-child-process-recv-handle.js
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The copyright and license notice is already in the LICENSE file.  There
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2015-01-12 15:30:28 -08:00

65 lines
1.8 KiB
JavaScript

// Test that a Linux specific quirk in the handle passing protocol is handled
// correctly. See https://github.com/joyent/node/issues/5330 for details.
var common = require('../common');
var assert = require('assert');
var net = require('net');
var spawn = require('child_process').spawn;
if (process.argv[2] === 'worker')
worker();
else
master();
function master() {
// spawn() can only create one IPC channel so we use stdin/stdout as an
// ad-hoc command channel.
var proc = spawn(process.execPath, [__filename, 'worker'], {
stdio: ['pipe', 'pipe', 'pipe', 'ipc']
});
var handle = null;
proc.on('exit', function() {
handle.close();
});
proc.stdout.on('data', function(data) {
assert.equal(data, 'ok\r\n');
net.createServer(assert.fail).listen(common.PORT, function() {
handle = this._handle;
proc.send('one');
proc.send('two', handle);
proc.send('three');
proc.stdin.write('ok\r\n');
});
});
proc.stderr.pipe(process.stderr);
}
function worker() {
process._channel.readStop(); // Make messages batch up.
process.stdout.ref();
process.stdout.write('ok\r\n');
process.stdin.once('data', function(data) {
assert.equal(data, 'ok\r\n');
process._channel.readStart();
});
var n = 0;
process.on('message', function(msg, handle) {
n += 1;
if (n === 1) {
assert.equal(msg, 'one');
assert.equal(handle, undefined);
}
else if (n === 2) {
assert.equal(msg, 'two');
assert.equal(typeof handle, 'object'); // Also matches null, therefore...
assert.ok(handle); // also check that it's truthy.
handle.close();
}
else if (n === 3) {
assert.equal(msg, 'three');
assert.equal(handle, undefined);
process.exit();
}
});
}