void RemoteUDPListener::run()
{
poco_assert (_stopped);
Poco::Buffer<char> buffer(BUFFER_SIZE);
_stopped = false;
Poco::Timespan waitTime(WAITTIME_MILLISEC* 1000);
while (!_stopped)
{
try
{
if (_socket.poll(waitTime, Socket::SELECT_READ))
{
int byteCnt = _socket.receiveBytes(buffer.begin(), BUFFER_SIZE);
if (byteCnt > 0)
{
_queue.enqueueNotification(new MessageNotification(std::string(buffer.begin(), byteCnt)));
}
}
}
catch (...)
{
// lazy exception catching
}
}
}
void DatagramSocketTest::testUnbound()
{
UDPEchoServer echoServer;
DatagramSocket ss;
char buffer[256];
ss.connect(SocketAddress("localhost", echoServer.port()));
int n = ss.sendBytes("hello", 5);
assert (n == 5);
n = ss.receiveBytes(buffer, sizeof(buffer));
assert (n == 5);
assert (std::string(buffer, n) == "hello");
ss.close();
}
void DatagramLocalSocketTest::testDatagramSocketPerformance()
{
Timestamp::TimeDiff local, net;
std::size_t initBufSize = 1;
std::size_t initReps = 1;
double locData = 0.0, locTime = 0.0, netData = 0.0, netTime = 0.0;
std::cout << std::endl << "OS Name: " << Environment::osName() << std::endl;
std::cout << "OS Version: " << Environment::osVersion() << std::endl;
std::cout << "OS Architecture: " << Environment::osArchitecture() << std::endl;
std::ostringstream os;
os << Environment::osName() << '-'
<< Environment::osVersion() << '-'
<< Environment::osArchitecture()
<< "-UDP.csv";
File f(os.str());
if (f.exists()) f.remove();
FileOutputStream fos(os.str());
for (std::size_t repetitions = initReps;
repetitions <= 100000;
repetitions *= 10)
{
for (std::size_t bufSize = initBufSize; bufSize < 20000; bufSize *= 2)
{
char* pBuf = new char[bufSize];
{
UDPLocalEchoServer echoServer(bufSize);
DatagramSocket ss(SocketAddress("/tmp/poco.client.udp.sock"), true);
SocketAddress addr(echoServer.address().toString());
ss.connect(addr);
int recv = 0, sent = 0;
Stopwatch sw; int i = 0;
for (; i < repetitions; ++i)
{
sent = 0; recv = 0; local = 0;
do
{
int s;
sw.restart();
s = ss.sendBytes(pBuf + sent, bufSize - sent);
sw.stop();
local += sw.elapsed();
sent += s;
} while (sent < bufSize);
do
{
int r;
sw.restart();
r = ss.receiveBytes(pBuf + recv, bufSize - recv);
sw.stop();
local += sw.elapsed();
recv += r;
} while (recv < bufSize);
locData += sent;
locData += recv;
locTime += local;
poco_assert (sent == bufSize && recv == bufSize);
}
std::cout << "Local UDP socket, " << i << " repetitions, " << bufSize << " bytes, "
<< local << " [us]." << std::endl;
ss.close();
}
{
UDPEchoServer echoServer(bufSize);
DatagramSocket ss;
ss.connect(SocketAddress("localhost", echoServer.port()));
int recv = 0, sent = 0;
Stopwatch sw; int i = 0;
for (; i < repetitions; ++i)
{
sent = 0; recv = 0; net = 0;
do
{
int s;
sw.restart();
s = ss.sendBytes(pBuf + sent, bufSize - sent);
sw.stop();
net += sw.elapsed();
sent += s;
} while (sent < bufSize);
do
{
int r;
sw.restart();
r = ss.receiveBytes(pBuf + recv, bufSize - recv);
sw.stop();
net += sw.elapsed();
recv += r;
} while (recv < bufSize);
netData += sent;
netData += recv;
netTime += net;
poco_assert (sent == bufSize && recv == bufSize);
}
std::cout << "Network UDP socket, " << i << " repetitions, " << bufSize << " bytes, "
<< net << " [us]." << std::endl;
fos << i << ',' << bufSize << ',';
ss.close();
}
delete pBuf;
double ratio = local ? ((double) net) / ((double) local) : (double) net;
double diff = ((double) net) - ((double) local);
std::cout << "Ratio: " << ratio << "(" << diff / 1000.0 << "[us/msg]" << ')' << std::endl;
fos << ratio << std::endl;
}
}
poco_assert (locData == netData);
double locDTR = ((locData / (locTime / Timestamp::resolution())) * 8) / 1000000;
double netDTR = ((netData / (netTime / Timestamp::resolution())) * 8) / 1000000;
std::cout << "=================================" << std::endl
<< "Local DTR: " << locDTR << " [Mbit/s]" << std::endl
<< "Network DTR: " << netDTR << " [Mbit/s]" << std::endl
<< "Local sockets speedup: " << ((locDTR / netDTR) * 100) - 100 << '%' << std::endl
<< "=================================" << std::endl;
fos << "=================================" << std::endl
<< "Local DTR: " << locDTR << " [Mbit/s]" << std::endl
<< "Network DTR: " << netDTR << " [Mbit/s]" << std::endl
<< "Local sockets speedup: " << ((locDTR / netDTR) * 100) - 100 << '%' << std::endl
<< "=================================" << std::endl;
fos.close();
}