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var common = require('../common');
var assert = require('assert');
var Buffer = require('buffer').Buffer;
var dgram = require("dgram");
var tests_run = 0;
function pingPongTest (port, host) {
var callbacks = 0;
var N = 500;
var count = 0;
var sent_final_ping = false;
var server = dgram.createSocket("udp4", function (msg, rinfo) {
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.addListener("message", function (msg, rinfo) {
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 {
sent_final_ping = true;
client.send(buf, 0, buf.length, port, "localhost");
process.nextTick(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(20989, "localhost");
pingPongTest(20990, "localhost");
pingPongTest(20988);
//pingPongTest("/tmp/pingpong.sock");
process.addListener("exit", function () {
assert.equal(3, tests_run);
console.log('done');
});
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