public void TopicPubSub()
{
using (var pub = new PublisherSocket())
using (var sub = new SubscriberSocket())
{
var port = pub.BindRandomPort("tcp://127.0.0.1");
sub.Connect("tcp://127.0.0.1:" + port);
sub.Subscribe("A");
// let the subscriber connect to the publisher before sending a message
Thread.Sleep(500);
pub.SendMoreFrame("A").SendFrame("Hello");
CollectionAssert.AreEqual(
new[] {"A", "Hello"},
sub.ReceiveMultipartStrings());
}
}
public void ThroughXPubXSubWithReconnectingPublisher()
{
using (var xpub = new XPublisherSocket())
using (var xsub = new XSubscriberSocket())
using (var poller = new NetMQPoller {xsub, xpub})
{
var xPubPort = (ushort)xpub.BindRandomPort("tcp://*");
var xSubPort = (ushort)xsub.BindRandomPort("tcp://*");
var proxy = new Proxy(xsub, xpub, poller: poller);
proxy.Start();
poller.RunAsync();
// long running subscriber
using (var sub = new SubscriberSocket())
{
sub.Connect(string.Format("tcp://localhost:{0}", xPubPort));
sub.Subscribe("A");
// publisher 1
using (var pub = new PublisherSocket())
{
pub.Connect(string.Format("tcp://localhost:{0}", xSubPort));
// give the publisher a chance to learn of the subscription
Thread.Sleep(100);
pub.SendMoreFrame("A").SendFrame("1");
}
// publisher 2
using (var pub = new PublisherSocket())
{
pub.Connect(string.Format("tcp://localhost:{0}", xSubPort));
// give the publisher a chance to learn of the subscription
Thread.Sleep(100);
pub.SendMoreFrame("A").SendFrame("2");
}
var frames = new List<string>();
Assert.True(sub.TryReceiveMultipartStrings(TimeSpan.FromSeconds(1), ref frames));
CollectionAssert.AreEqual(new[] { "A", "1" }, frames);
Assert.True(sub.TryReceiveMultipartStrings(TimeSpan.FromSeconds(1), ref frames));
CollectionAssert.AreEqual(new[] { "A", "2" }, frames);
}
}
}
public void ThroughXPubXSub()
{
using (var xpub = new XPublisherSocket())
using (var xsub = new XSubscriberSocket())
using (var proxyPoller = new NetMQPoller {xsub, xpub})
{
var xPubPort = (ushort)xpub.BindRandomPort("tcp://*");
var xSubPort = (ushort)xsub.BindRandomPort("tcp://*");
var proxy = new Proxy(xsub, xpub, poller: proxyPoller);
proxy.Start();
proxyPoller.RunAsync();
using (var pub = new PublisherSocket())
using (var sub = new SubscriberSocket())
{
// Client 1
sub.Connect(string.Format("tcp://localhost:{0}", xPubPort));
pub.Connect(string.Format("tcp://localhost:{0}", xSubPort));
sub.Subscribe("A");
// Client 2
Thread.Sleep(500);
pub.SendMoreFrame("A").SendFrame("Hello");
var frames = new List<string>();
Assert.True(sub.TryReceiveMultipartStrings(TimeSpan.FromSeconds(1), ref frames));
CollectionAssert.AreEqual(
new[] { "A", "Hello" },
frames);
}
}
}
public void MultiplePublishersAndSubscribersOnSameTopic()
{
using (var pub1 = new PublisherSocket())
using (var pub2 = new PublisherSocket())
using (var sub1 = new SubscriberSocket())
using (var sub2 = new SubscriberSocket())
{
int port1 = pub1.BindRandomPort("tcp://127.0.0.1");
int port2 = pub2.BindRandomPort("tcp://127.0.0.1");
sub1.Connect("tcp://127.0.0.1:" + port1);
sub1.Connect("tcp://127.0.0.1:" + port2);
sub2.Connect("tcp://127.0.0.1:" + port1);
sub2.Connect("tcp://127.0.0.1:" + port2);
// should subscribe to both
sub1.Subscribe("A");
sub2.Subscribe("A");
Thread.Sleep(500);
// Send from pub 1
pub1.SendMoreFrame("A").SendFrame("Hello from the first publisher");
CollectionAssert.AreEqual(new[] { "A", "Hello from the first publisher" }, sub1.ReceiveMultipartStrings());
CollectionAssert.AreEqual(new[] { "A", "Hello from the first publisher" }, sub2.ReceiveMultipartStrings());
// Send from pub 2
pub2.SendMoreFrame("A").SendFrame("Hello from the second publisher");
CollectionAssert.AreEqual(new[] { "A", "Hello from the second publisher" }, sub1.ReceiveMultipartStrings());
CollectionAssert.AreEqual(new[] { "A", "Hello from the second publisher" }, sub2.ReceiveMultipartStrings());
}
}
public void MultipleSubscribersOnDifferentTopics()
{
using (var pub = new PublisherSocket())
using (var sub1 = new SubscriberSocket())
using (var sub2 = new SubscriberSocket())
{
var port = pub.BindRandomPort("tcp://127.0.0.1");
sub1.Connect("tcp://127.0.0.1:" + port);
sub2.Connect("tcp://127.0.0.1:" + port);
sub1.Subscribe("1");
sub1.Subscribe("1&2");
sub2.Subscribe("2");
sub2.Subscribe("1&2");
Thread.Sleep(500);
pub.SendMoreFrame("1").SendFrame("A");
CollectionAssert.AreEqual(new[] { "1", "A" }, sub1.ReceiveMultipartStrings());
Assert.IsFalse(sub2.TrySkipFrame());
pub.SendMoreFrame("2").SendFrame("B");
Assert.IsFalse(sub1.TrySkipFrame());
CollectionAssert.AreEqual(new[] { "2", "B" }, sub2.ReceiveMultipartStrings());
pub.SendMoreFrame("1&2").SendFrame("C");
CollectionAssert.AreEqual(new[] { "1&2", "C" }, sub1.ReceiveMultipartStrings());
CollectionAssert.AreEqual(new[] { "1&2", "C" }, sub2.ReceiveMultipartStrings());
}
}
