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'use strict';
var common = require('../common');
var assert = require('assert');
var Buffer = require('buffer').Buffer;
var dgram = require('dgram');
var debug = false;
var tests_run = 0;
function pingPongTest(port, host) {
var callbacks = 0;
var N = 500;
var count = 0;
var server = dgram.createSocket('udp4', function(msg, rinfo) {
if (debug) console.log('server got: ' + msg +
' from ' + rinfo.address + ':' + rinfo.port);
if (/PING/.exec(msg)) {
var buf = new Buffer(4);
buf.write('PONG');
server.send(buf, 0, buf.length,
rinfo.port, rinfo.address,
function(err, sent) {
callbacks++;
});
}
});
server.on('error', function(e) {
throw e;
});
server.on('listening', function() {
console.log('server listening on ' + port + ' ' + host);
var buf = new Buffer('PING'),
client = dgram.createSocket('udp4');
client.on('message', function(msg, rinfo) {
if (debug) console.log('client got: ' + msg +
' from ' + rinfo.address + ':' + rinfo.port);
assert.equal('PONG', msg.toString('ascii'));
count += 1;
if (count < N) {
client.send(buf, 0, buf.length, port, 'localhost');
} else {
client.send(buf, 0, buf.length, port, 'localhost', function() {
client.close();
});
}
});
client.on('close', function() {
console.log('client has closed, closing server');
assert.equal(N, count);
tests_run += 1;
server.close();
assert.equal(N - 1, callbacks);
});
client.on('error', function(e) {
throw e;
});
console.log('Client sending to ' + port + ', localhost ' + buf);
client.send(buf, 0, buf.length, port, 'localhost', function(err, bytes) {
if (err) {
throw err;
}
console.log('Client sent ' + bytes + ' bytes');
});
count += 1;
});
server.bind(port, host);
}
// All are run at once, so run on different ports
pingPongTest(common.PORT + 0, 'localhost');
pingPongTest(common.PORT + 1, 'localhost');
pingPongTest(common.PORT + 2);
//pingPongTest('/tmp/pingpong.sock');
process.on('exit', function() {
assert.equal(3, tests_run);
console.log('done');
});
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