/// <summary>
/// Creates a DomainParticipant, Topic, Subscriber and DataReader<HelloWorld>.
/// </summary>
public HelloWorldSubscriber(int domainId)
{
// Enable network capture.
// This must be called before any other network capture function, and
// before creating any participant for which we want to capture traffic.
NetworkCapture.Enable();
// Start communicating in a domain, usually one participant per application
// Load QoS profile from USER_QOS_PROFILES.xml file
participant = DomainParticipantFactory.Instance.CreateParticipant(domainId);
// A Topic has a name and a datatype.
Topic <HelloWorld> topic = participant.CreateTopic <HelloWorld>(
"Network capture shared memory example");
// Create a subscriber
Subscriber subscriber = participant.CreateSubscriber();
// Create a DataReader, loading QoS profile from USER_QOS_PROFILES.xml.
reader = subscriber.CreateDataReader(topic);
// Obtain the DataReader's Status Condition
StatusCondition statusCondition = reader.StatusCondition;
// Enable the 'data available' status.
statusCondition.EnabledStatuses = StatusMask.DataAvailable;
// Associate an event handler with the status condition.
// This will run when the condition is triggered, in the context of
// the dispatch call (see below)
statusCondition.Triggered += ProcessData;
// Create a WaitSet and attach the StatusCondition
waitset.AttachCondition(statusCondition);
}
/// <summary>
/// Publishes the data
/// </summary>
public void Run(int sampleCount)
{
// Start capturing traffic for all participants.
NetworkCapture capture = NetworkCapture.Start("publisher");
var sample = new HelloWorld();
for (int count = 0; count < sampleCount && continueRunning; count++)
{
// Modify the data to be sent here
sample.msg = $"Hello {count}";
Console.WriteLine($"Writing HelloWorld, count {count}");
if (count == 4)
{
Console.WriteLine("Pausing the capture at sample 4");
capture.Pause();
}
else if (count == 6)
{
Console.WriteLine("Resuming the capture at sample 6");
capture.Resume();
}
writer.Write(sample);
Thread.Sleep(1000);
}
}
/// <summary>
/// Disposes all DDS entities created by this application.
/// </summary>
public void Dispose()
{
participant.Dispose();
// Disable network capture.
// This must be the last network capture operation that is called.
NetworkCapture.Disable();
}
/// <summary>
/// Processes the data received by the DataReader.
/// </summary>
public void Run(int sampleCount)
{
// Start capturing traffic for one participant.
NetworkCapture capture = NetworkCapture.Start(
participant,
"subscriber");
while (samplesRead < sampleCount && continueRunning)
{
// Dispatch will call the handlers associated to the WaitSet
// conditions when they activate
Console.WriteLine("HelloWorld subscriber sleeping for 4 sec...");
waitset.Dispatch(Duration.FromSeconds(4));
}
}
/// <summary>
/// Creates a DomainParticipant, Topic, Publisher and DataWriter<HelloWorld>.
/// </summary>
public HelloWorldPublisher(int domainId)
{
// Enable network capture.
// This must be called before any other network capture function, and
// before creating any participant for which we want to capture traffic.
NetworkCapture.Enable();
// Start communicating in a domain, usually one participant per application
// Load QoS profile from USER_QOS_PROFILES.xml file
participant = DomainParticipantFactory.Instance.CreateParticipant(domainId);
// A Topic has a name and a datatype.
Topic <HelloWorld> topic = participant.CreateTopic <HelloWorld>(
"Network capture shared memory example");
// Create a Publisher
Publisher publisher = participant.CreatePublisher();
// Create a DataWriter, loading QoS profile from USER_QOS_PROFILES.xml, and
writer = publisher.CreateDataWriter(topic);
}
