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'use strict';
const common = require('../common');
if (!common.hasIPv6)
common.skip('no IPv6 support');
const assert = require('assert');
const dgram = require('dgram');
const client = dgram.createSocket('udp6');
const toSend = [Buffer.alloc(256, 'x'),
Buffer.alloc(256, 'y'),
Buffer.alloc(256, 'z'),
'hello'];
const received = [];
let totalBytesSent = 0;
let totalBytesReceived = 0;
const arrayBufferViewLength = common.getArrayBufferViews(
Buffer.from('')
).length;
client.on('listening', common.mustCall(() => {
const port = client.address().port;
client.send(toSend[0], 0, toSend[0].length, port);
client.send(toSend[1], port);
client.send([toSend[2]], port);
client.send(toSend[3], 0, toSend[3].length, port);
totalBytesSent += toSend.map((buf) => buf.length)
.reduce((a, b) => a + b, 0);
for (const msgBuf of common.getArrayBufferViews(toSend[0])) {
client.send(msgBuf, 0, msgBuf.byteLength, port);
totalBytesSent += msgBuf.byteLength;
}
for (const msgBuf of common.getArrayBufferViews(toSend[1])) {
client.send(msgBuf, port);
totalBytesSent += msgBuf.byteLength;
}
for (const msgBuf of common.getArrayBufferViews(toSend[2])) {
client.send([msgBuf], port);
totalBytesSent += msgBuf.byteLength;
}
}));
client.on('message', common.mustCall((buf, info) => {
received.push(buf.toString());
totalBytesReceived += info.size;
if (totalBytesReceived === totalBytesSent) {
client.close();
}
// For every buffer in `toSend`, we send the raw Buffer,
// as well as every TypedArray in getArrayBufferViews()
}, toSend.length + (toSend.length - 1) * arrayBufferViewLength));
client.on('close', common.mustCall((buf, info) => {
// The replies may arrive out of order -> sort them before checking.
received.sort();
const repeated = [...toSend];
for (let i = 0; i < arrayBufferViewLength; i++) {
// We get arrayBufferViews only for toSend[0..2].
repeated.push(...toSend.slice(0, 3));
}
assert.strictEqual(totalBytesSent, totalBytesReceived);
const expected = repeated.map(String).sort();
assert.deepStrictEqual(received, expected);
}));
client.bind(0);
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