public void Mandatory()
{
using (var router = new RouterSocket())
{
router.Options.RouterMandatory = true;
router.Bind("tcp://127.0.0.1:5555");
using (var dealer = new DealerSocket())
{
dealer.Options.Identity = Encoding.ASCII.GetBytes("1");
dealer.Connect("tcp://127.0.0.1:5555");
dealer.SendFrame("Hello");
Assert.AreEqual("1", router.ReceiveFrameString());
Assert.AreEqual("Hello", router.ReceiveFrameString());
}
Thread.Sleep(100);
Assert.Throws<HostUnreachableException>(() => router.SendMoreFrame("1").SendFrame("Hello"));
}
}
public void TwoMessagesFromRouterToDealer()
{
using (var server = new RouterSocket())
using (var client = new DealerSocket())
using (var poller = new NetMQPoller { client })
{
var port = server.BindRandomPort("tcp://*");
client.Connect("tcp://127.0.0.1:" + port);
var cnt = 0;
client.ReceiveReady += (sender, e) =>
{
var strs = e.Socket.ReceiveMultipartStrings();
foreach (var str in strs)
{
Console.WriteLine(str);
}
cnt++;
if (cnt == 2)
{
poller.Stop();
}
};
byte[] clientId = Encoding.Unicode.GetBytes("ClientId");
client.Options.Identity = clientId;
const string request = "GET /\r\n";
const string response = "HTTP/1.0 200 OK\r\n" +
"Content-Type: text/plain\r\n" +
"\r\n" +
"Hello, World!";
client.SendFrame(request);
byte[] serverId = server.ReceiveFrameBytes();
Assert.AreEqual(request, server.ReceiveFrameString());
// two messages in a row, not frames
server.SendMoreFrame(serverId).SendFrame(response);
server.SendMoreFrame(serverId).SendFrame(response);
poller.Run();
}
}
public void Handover()
{
using (var router = new RouterSocket())
using (var dealer1 = new DealerSocket())
{
router.Options.RouterHandover = true;
router.Bind("inproc://127.0.0.1:5555");
dealer1.Options.Identity = Encoding.ASCII.GetBytes("ID");
dealer1.Connect("inproc://127.0.0.1:5555");
dealer1.SendMoreFrame("Hello").SendFrame("World");
var identity = router.ReceiveFrameString();
Assert.AreEqual("ID", identity);
using (var dealer2 = new DealerSocket())
{
dealer2.Options.Identity = Encoding.ASCII.GetBytes("ID");
dealer2.Connect("inproc://127.0.0.1:5555");
// We have new peer which should take over, however we are still reading a message
var message = router.ReceiveFrameString();
Assert.AreEqual("Hello", message);
message = router.ReceiveFrameString();
Assert.AreEqual("World", message);
dealer2.SendMoreFrame("Hello").SendFrame("World");
identity = router.ReceiveFrameString();
Assert.AreEqual("ID", identity);
message = router.ReceiveFrameString();
Assert.AreEqual("Hello", message);
message = router.ReceiveFrameString();
Assert.AreEqual("World", message);
}
}
}
public void HasInTest()
{
using (var server = new RouterSocket())
using (var client = new DealerSocket())
{
var port = server.BindRandomPort("tcp://*");
// no one sent a message so it should be false
Assert.IsFalse(server.HasIn);
client.Connect("tcp://localhost:" + port);
// wait for the client to connect
Thread.Sleep(100);
// now we have one client connected but didn't send a message yet
Assert.IsFalse(server.HasIn);
client.SendFrame("1");
// wait for the message to arrive
Thread.Sleep(100);
// the has in should indicate a message is ready
Assert.IsTrue(server.HasIn);
server.SkipFrame(); // identity
string message = server.ReceiveFrameString();
Assert.AreEqual(message, "1");
// we read the message, it should false again
Assert.IsFalse(server.HasIn);
}
}
public void AddTwoSocketAfterRemoving()
{
using (var router1 = new RouterSocket())
using (var router2 = new RouterSocket())
using (var router3 = new RouterSocket())
using (var router4 = new RouterSocket())
using (var dealer1 = new DealerSocket())
using (var dealer2 = new DealerSocket())
using (var dealer3 = new DealerSocket())
using (var dealer4 = new DealerSocket())
using (var poller = new NetMQPoller { router1, router2 })
{
int port1 = router1.BindRandomPort("tcp://127.0.0.1");
int port2 = router2.BindRandomPort("tcp://127.0.0.1");
int port3 = router3.BindRandomPort("tcp://127.0.0.1");
int port4 = router4.BindRandomPort("tcp://127.0.0.1");
dealer1.Connect("tcp://127.0.0.1:" + port1);
dealer2.Connect("tcp://127.0.0.1:" + port2);
dealer3.Connect("tcp://127.0.0.1:" + port3);
dealer4.Connect("tcp://127.0.0.1:" + port4);
int router1Arrived = 0;
int router2Arrived = 0;
bool router3Arrived = false;
bool router4Arrived = false;
var signal1 = new ManualResetEvent(false);
var signal2 = new ManualResetEvent(false);
var signal3 = new ManualResetEvent(false);
var signal4 = new ManualResetEvent(false);
router1.ReceiveReady += (s, e) =>
{
router1Arrived++;
router1.SkipFrame(); // identity
router1.SkipFrame(); // message
poller.Remove(router1);
signal1.Set();
};
router2.ReceiveReady += (s, e) =>
{
router2Arrived++;
router2.SkipFrame(); // identity
router2.SkipFrame(); // message
if (router2Arrived == 1)
{
poller.Add(router3);
poller.Add(router4);
signal2.Set();
}
};
router3.ReceiveReady += (s, e) =>
{
router3.SkipFrame(); // identity
router3.SkipFrame(); // message
router3Arrived = true;
signal3.Set();
};
router4.ReceiveReady += (s, e) =>
{
router4.SkipFrame(); // identity
router4.SkipFrame(); // message
router4Arrived = true;
signal4.Set();
};
poller.RunAsync();
dealer1.SendFrame("1");
Assert.IsTrue(signal1.WaitOne(300));
dealer2.SendFrame("2");
Assert.IsTrue(signal2.WaitOne(300));
dealer3.SendFrame("3");
dealer4.SendFrame("4");
dealer2.SendFrame("2");
dealer1.SendFrame("1");
Assert.IsTrue(signal3.WaitOne(300));
Assert.IsTrue(signal4.WaitOne(300));
poller.Stop();
router1.SkipFrame();
bool more;
Assert.AreEqual("1", router1.ReceiveFrameString(out more));
Assert.IsFalse(more);
Assert.AreEqual(1, router1Arrived);
Assert.AreEqual(2, router2Arrived);
Assert.IsTrue(router3Arrived);
Assert.IsTrue(router4Arrived);
}
}
public void Messages_From_Router_To_Dealer()
{
Console.Write("Test sending message from publisher(router) to subscribers (dealer).\n");
int maxMessage = 5;
CountdownEvent cd = new CountdownEvent(maxMessage);
string endpoint;
using (var publisher = new RouterSocket())
using (var subscriber = new DealerSocket())
using (var poller = new NetMQPoller { subscriber })
{
publisher.Bind("tcp://127.0.0.1:0");
endpoint = publisher.Options.LastEndpoint;
subscriber.Connect(endpoint);
subscriber.ReceiveReady += (sender, e) =>
{
var strs = e.Socket.ReceiveMultipartStrings();
foreach (var str in strs)
{
Console.WriteLine("Subscribe: " + str);
}
cd.Signal();
};
byte[] clientId = Encoding.Unicode.GetBytes("ClientId");
subscriber.Options.Identity = clientId;
const string request = "Ping";
// Work around "feature" of router/dealer: the publisher does not know the subscriber exists, until it
// sends at least one message which makes it necessary to open the connection. I believe this is a
// low-level feature of the TCP/IP transport.
subscriber.SendFrame(request); // Ping.
byte[] serverId = publisher.ReceiveFrameBytes();
Assert.AreEqual(request, publisher.ReceiveFrameString());
for (int i = 0; i < maxMessage; i++)
{
string msg = string.Format("[message: {0}]", i);
Console.Write("Publish: {0}\n", msg);
publisher.SendMoreFrame(serverId).SendFrame(msg);
}
poller.RunAsync();
if (cd.Wait(TimeSpan.FromSeconds(10)) == false) // Blocks until _countdown.Signal has been called.
{
Assert.Fail("Timed out, this test should complete in less than 10 seconds.");
}
}
}
public void Messages_From_Dealer_To_Router()
{
int maxMessage = 5;
CountdownEvent cd = new CountdownEvent(maxMessage);
Console.Write("Test sending message from subscribers (dealer) to publisher(router).\n");
using (var publisher = new RouterSocket())
using (var subscriber = new DealerSocket())
using (var poller = new NetMQPoller { subscriber })
{
var port = publisher.BindRandomPort("tcp://*");
subscriber.Connect("tcp://127.0.0.1:" + port);
subscriber.ReceiveReady += (sender, e) =>
{
var strs = e.Socket.ReceiveMultipartStrings();
foreach (var str in strs)
{
Console.WriteLine(str);
}
cd.Signal();
};
byte[] clientId = Encoding.Unicode.GetBytes("ClientId");
subscriber.Options.Identity = clientId;
const string request = "GET /\r\n";
const string response = "HTTP/1.0 200 OK\r\n" +
"Content-Type: text/plain\r\n" +
"\r\n" +
"Hello, World!";
subscriber.SendFrame(request);
byte[] serverId = publisher.ReceiveFrameBytes();
Assert.AreEqual(request, publisher.ReceiveFrameString());
for (int i = 0; i < maxMessage; i++)
{
publisher.SendMoreFrame(serverId).SendFrame(response);
}
poller.RunAsync();
if (cd.Wait(TimeSpan.FromSeconds(10)) == false) // Blocks until _countdown.Signal has been called.
{
Assert.Fail("Timed out, this test should complete in less than 10 seconds.");
}
}
}