public DomainParticipantTransportSource(DomainParticipant participant, string senderTopic, string receiverTopic)
{
_participant = participant;
var senderTopicQos = new TopicQos();
participant.get_default_topic_qos(senderTopicQos);
var receiverTopicQos = new TopicQos();
participant.get_default_topic_qos(receiverTopicQos);
_sender = participant.create_topic(senderTopic, BytesTypeSupport.TYPENAME, senderTopicQos, null, StatusMask.STATUS_MASK_NONE);
_receiver = participant.create_topic(receiverTopic, BytesTypeSupport.TYPENAME, receiverTopicQos, null, StatusMask.STATUS_MASK_NONE);
var writerQos = new DataWriterQos();
//writerQos.publish_mode.kind = PublishModeQosPolicyKind.ASYNCHRONOUS_PUBLISH_MODE_QOS;
writerQos.publish_mode.flow_controller_name = FlowController.FIXED_RATE_FLOW_CONTROLLER_NAME;
participant.get_default_datawriter_qos(writerQos);
var readerQos = new DataReaderQos();
participant.get_default_datareader_qos(readerQos);
_writer = participant.create_datawriter(_sender, writerQos, null, StatusMask.STATUS_MASK_NONE);
_reader = participant.create_datareader(_receiver, readerQos, this, StatusMask.STATUS_MASK_ALL);
}
public void TestRead()
{
List <SubscriptionBuiltinTopicData> data = new List <SubscriptionBuiltinTopicData>();
List <SampleInfo> infos = new List <SampleInfo>();
ReturnCode ret = _dr.Read(data, infos);
Assert.AreEqual(ReturnCode.NoData, ret);
Assert.AreEqual(0, data.Count);
Assert.AreEqual(0, infos.Count);
DomainParticipant otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindRtpsUdpTransportConfig();
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(otherParticipant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
var topic = otherParticipant.CreateTopic(TestContext.TestName, typeName);
Assert.IsNotNull(topic);
var subscriber = otherParticipant.CreateSubscriber();
Assert.IsNotNull(subscriber);
DataReaderQos drQos = TestHelper.CreateNonDefaultDataReaderQos();
DataReader reader = subscriber.CreateDataReader(topic, drQos);
Assert.IsNotNull(reader);
int count = 200;
ret = ReturnCode.NoData;
while (ret != ReturnCode.Ok && count > 0)
{
Thread.Sleep(100);
ret = _dr.Read(data, infos);
count--;
}
Assert.AreEqual(ReturnCode.Ok, ret);
Assert.AreEqual(1, data.Count);
Assert.AreEqual(1, infos.Count);
TestHelper.TestNonDefaultSubscriptionData(data.First());
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
/// <summary>
/// This operation creates a new IDomainParticipant which will join the domain
/// identified by domainId, with the desired DomainParticipantQos and attaches
/// the specified IDomainParticipantListener to it and uses the given communication
/// StatusKind mask.
/// </summary>
/// <remarks>
/// <i><b>Identifying the Domain</b></i><br>
/// The IDomainParticipant will attach to the Domain that is specified by the
/// domainId parameter. This parameter consists of an integer specified in the Id tag
/// in the configuration file. Note that to make multiple connections to a Domain (create
/// multiple Participants for the same Domain) within a single process, all of the
/// Participants must use the same identification (i.e. all use the same domain Id).
///
/// The constant DDS.DomainId.Default can be used for this parameter. If this is done
/// the value of Id tag from the configuration file specified by the environment variable
/// called OSPL_URI will be used.
///
/// It is recommended to use this domain Id in conjunction with the OSPL_URI
/// environment variable instead of hard-coding a domain Id into your application,
/// since this gives you much more flexibility in the deployment phase of your product.<br>
/// See also Section 1.3.2.1, The OSPL_URI environment variable, in the Deployment
/// Guide.
///
/// <i><b>Communication Status</b></i><br>
/// For each communication status, the StatusChangedFlag flag is initially set to
/// false. It becomes true whenever that communication status changes. For each
/// communication status activated in the mask , the associated
/// IDomainParticipantListener operation is invoked and the communication
/// status is reset to false , as the listener implicitly accesses the status which is passed
/// as a parameter to that operation. The fact that the status is reset prior to calling the
/// listener means that if the application calls the Get<status_name>Status from
/// inside the listener it will see the status already reset.
///
/// The following statuses are applicable to the IDomainParticipant
/// - DDS.StatusKind InconsistentTopic (propagated)
/// - DDS.StatusKind OfferedDeadlineMissed (propagated)
/// - DDS.StatusKind RequestedDeadlineMissed (propagated)
/// - DDS.StatusKind OfferedIncompatibleQos (propagated)
/// - DDS.StatusKind RequestedIncompatibleQos (propagated)
/// - DDS.StatusKind SampleLost (propagated)
/// - DDS.StatusKind SampleRejected (propagated)
/// - DDS.StatusKind DataOnReaders (propagated)
/// - DDS.StatusKind DataAvailable (propagated)
/// - DDS.StatusKind LivelinessLost (propagated)
/// - DDS.StatusKind LivelinessChanged (propagated)
/// - DDS.StatusKind PublicationMatched (propagated)
/// - DDS.StatusKind SubscriptionMatched (propagated)
///
/// Be aware that the PublicationMatched and SubscriptionMatched
/// statuses are not applicable when the infrastructure does not have the
/// information available to determine connectivity. This is the case when OpenSplice
/// is configured not to maintain discovery information in the Networking Service. (See
/// the description for the NetworkingService/Discovery/enabled property in
/// the Deployment Manual for more information about this subject.) In this case the
/// operation will return NULL.
///
/// Status bits are declared as a constant and can be used by the application in an OR
/// operation to create a tailored mask. The special constant 0 can
/// be used to indicate that the created entity should not respond to any of its available
/// statuses. The DDS will therefore attempt to propagate these statuses to its factory.
///
/// <i><b>Status Propagation</b></i><br>
/// The Data Distribution Service will trigger the most specific and relevant Listener.<br>
/// In other words, in case a communication status is also activated on the Listener of
/// a contained entity, the Listener on that contained entity is invoked instead of the
/// IDomainParticipantListener. This means that a status change on a contained
/// entity only invokes the IDomainParticipantListener if the contained entity
/// itself does not handle the trigger event generated by the status change.
///
/// The statuses DataOnReaders and DataAvailable are
/// “Read Communication Statuses” and are an exception to all other plain
/// communication statuses: they have no corresponding status structure that can be
/// obtained with a Get<status_name>Status operation and they are mutually
/// exclusive. When new information becomes available to a IDataReader, the Data
/// Distribution Service will first look in an attached and activated
/// ISubscriberListener or IDomainParticipantListener (in that order) for the
/// DataOnReaders. In case the DataOnReaders can not be
/// handled, the Data Distribution Service will look in an attached and activated
/// IDataReaderListener, ISubscriberListener or IDomainParticipantListener for
/// the DataAvailable (in that order).
/// </remarks>
/// @param domainId The ID of the Domain to which the IDomainParticipant is joined.
/// This should be the ID as specified in the configuration file.
/// @param qos a DomainParticipantQos for the new IDomainParticipant. When
/// this set of QosPolicy settings is inconsistent, no
/// IDomainParticipant is created.
/// @param listener A IDomainParticipantListener instance which will be attached to
/// the new IDomainParticipant. It is permitted to use null as the
/// value of the listener: this behaves as a IDomainParticipantListener
/// whose operations perform no action.
/// @param mask A bit-mask in which each bit enables the invocation of the
/// IDomainParticipantListener for a certain status.
/// @return The newly created IDomainParticipant. In case of an error a null is returned.
public IDomainParticipant CreateParticipant(
DomainId domainId,
DomainParticipantQos qos,
IDomainParticipantListener listener,
StatusKind mask)
{
DomainParticipant participant = null;
ReturnCode result;
ReportStack.Start();
result = QosManager.checkQos(qos);
if (result == DDS.ReturnCode.Ok)
{
if (domainId != DDS.DomainId.Invalid)
{
lock (singleton_lock)
{
participant = new OpenSplice.DomainParticipant();
result = participant.init(domainId, qos);
if (result == ReturnCode.Ok)
{
result = participant.SetListener(listener, mask);
}
else
{
participant = null;
}
if (result == ReturnCode.Ok)
{
participantList.Add(participant);
if (myQos.EntityFactory.AutoenableCreatedEntities)
{
result = participant.Enable();
}
}
}
}
else
{
ReportStack.Report(DDS.ReturnCode.BadParameter,
"DomainParticipant is using an invalid domain identifier (" + domainId + ").");
}
}
if (result != ReturnCode.Ok && participant != null)
{
// Ignore result because we prefer the original error.
DeleteParticipant(participant);
participant = null;
}
ReportStack.Flush(null, result != ReturnCode.Ok);
return(participant);
}
public void TestTakeNextSample()
{
PublicationBuiltinTopicData data = default;
SampleInfo infos = new SampleInfo();
ReturnCode ret = _dr.TakeNextSample(ref data, infos);
Assert.AreEqual(ReturnCode.NoData, ret);
DomainParticipant otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindRtpsUdpTransportConfig();
Assert.IsTrue(_participant.WaitForParticipants(1, 20_000));
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(otherParticipant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
var topic = otherParticipant.CreateTopic(TestContext.TestName, typeName);
Assert.IsNotNull(topic);
var publisher = otherParticipant.CreatePublisher();
Assert.IsNotNull(publisher);
DataWriterQos dwQos = TestHelper.CreateNonDefaultDataWriterQos();
dwQos.Ownership.Kind = OwnershipQosPolicyKind.SharedOwnershipQos;
DataWriter dataWriter = publisher.CreateDataWriter(topic, dwQos);
Assert.IsNotNull(dataWriter);
int count = 200;
ret = ReturnCode.NoData;
while (ret != ReturnCode.Ok && count > 0)
{
Thread.Sleep(100);
ret = _dr.TakeNextSample(ref data, infos);
count--;
}
Assert.AreEqual(ReturnCode.Ok, ret);
TestHelper.TestNonDefaultPublicationData(data);
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
/// <summary>
/// The Main function runs the Qos printing example.
/// </summary>
public static void Main(string[] args)
{
using DomainParticipant participant = DomainParticipantFactory.Instance.CreateParticipant(0);
Topic <HelloWorld> topic = participant.CreateTopic <HelloWorld>("Example QosPrintingExample_HelloWorld");
Publisher publisher = participant.CreatePublisher();
// In order to demonstrate a possible use-case for the Qos printing APIs
// we create a DataWriter which is a combination of policies set in
// the XML file, and of policies set in code.
DataWriterQos writerQos = QosProvider.Default.GetDataWriterQos()
.WithReliability(policy => policy.Kind = ReliabilityKind.BestEffort);
DataWriter <HelloWorld> writer = publisher.CreateDataWriter(topic, writerQos);
// The Qos we have obtained from the XML file inherits from the
// Generic.StrictReliable built-in profile. It also explicitly sets
// the Durability Qos policy. We have also explicitly set (in code)
// the Reliability Qos (overriding the ReliabilityKind set in the
// built-in profile). Using the Qos printing APIs we can check what
// is the final Qos in use by an entity.
Console.WriteLine("Printing DataWriterQos to stdout");
Console.WriteLine("Press enter to continue");
Console.ReadLine();
Console.WriteLine(writer.Qos);
// The output can be configured using QosPrintFormat
QosPrintFormat format = new QosPrintFormat
{
Indent = 1,
IsStandalone = true
};
Console.WriteLine("Printing formatted DataWriterQos to stdout");
Console.WriteLine("Press enter to continue");
Console.ReadLine();
Console.WriteLine(writer.Qos.ToString(format));
// By default, only the differences with respect to the documented
// QoS default (the default values as stated in the API reference)
// are printed. This behavior can be overridden by passing another
// QoS object to use as the baseQos to ToString.
Console.WriteLine("Printing DataWriterQos differences with respect to \"BuiltinQosLib::Generic.StrictReliable\" to stdout");
Console.WriteLine("Press enter to continue");
Console.ReadLine();
Console.WriteLine(writer.Qos.ToString(
baseQos: QosProvider.Default.GetDataWriterQos("BuiltinQosLib::Generic.StrictReliable")));
// To print all the Qos policies (not just the differences), call
// ToString with sentinel QosPrintAll.Value
Console.WriteLine("Printing entire DataWriterQos object to stdout");
Console.WriteLine("Press enter to continue");
Console.ReadLine();
Console.WriteLine(writer.Qos.ToString(baseQos: QosPrintAll.Value));
}
public void TestLookupInstance()
{
SubscriptionBuiltinTopicData data = default;
SampleInfo info = new SampleInfo();
DomainParticipant otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindRtpsUdpTransportConfig();
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(otherParticipant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
var topic = otherParticipant.CreateTopic(TestContext.TestName, typeName);
Assert.IsNotNull(topic);
var subscriber = otherParticipant.CreateSubscriber();
Assert.IsNotNull(subscriber);
DataReaderQos drQos = TestHelper.CreateNonDefaultDataReaderQos();
DataReader dataReader = subscriber.CreateDataReader(topic, drQos);
Assert.IsNotNull(dataReader);
int count = 200;
ReturnCode ret = ReturnCode.NoData;
while (ret != ReturnCode.Ok && count > 0)
{
Thread.Sleep(100);
// Get the for an existing instance
ret = _dr.ReadNextSample(ref data, info);
count--;
}
Assert.AreEqual(ReturnCode.Ok, ret);
TestHelper.TestNonDefaultSubscriptionData(data);
// Lookup for an existing instance
var handle = _dr.LookupInstance(data);
Assert.AreNotEqual(InstanceHandle.HandleNil, handle);
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
/// <summary>
/// Main function, receiving structured command-line arguments
/// via the System.Console.DragonFruit package.
/// For example: dotnet run -- --domain-id 54 --sample-count 5
/// </summary>
/// <param name="domainId">The domain ID to create the DomainParticipant</param>
/// <param name="sampleCount">The number of data samples to receive before exiting</param>
public static void Main(int domainId = 0, int sampleCount = int.MaxValue)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// DomainParticipant QoS is configured in USER_QOS_PROFILES.xml
//
// A participant needs to be Disposed to release middleware resources.
// The 'using' keyword indicates that it will be Disposed when this
// scope ends.
using DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId);
// A Topic has a name and a datatype. Create dynamically-typed
// Topic named "HelloWorld Topic" with the type definition of
// "HelloWorld" in hello_world.xml. To get the type we use a QosProvider
var provider = new QosProvider("../hello_world.xml");
Topic <DynamicData> topic = participant.CreateTopic(
"Example HelloWorld",
provider.GetType("HelloWorld"));
// A Subscriber allows an application to create one or more DataReaders
// Subscriber QoS is configured in USER_QOS_PROFILES.xml
Subscriber subscriber = participant.CreateSubscriber();
// This DataReader reads data of type Temperature on Topic
// "ChocolateTemperature". DataReader QoS is configured in
// USER_QOS_PROFILES.xml
DataReader <DynamicData> 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)
int samplesRead = 0;
statusCondition.Triggered += _ => samplesRead += ProcessData(reader);
// Create a WaitSet and attach the StatusCondition
var waitset = new WaitSet();
waitset.AttachCondition(statusCondition);
while (samplesRead < sampleCount)
{
// 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));
}
}
public void TestTakeInstance()
{
List <TopicBuiltinTopicData> data = new List <TopicBuiltinTopicData>();
List <SampleInfo> infos = new List <SampleInfo>();
ReturnCode ret = _dr.Read(data, infos);
Assert.AreEqual(ReturnCode.NoData, ret);
Assert.AreEqual(0, data.Count);
Assert.AreEqual(0, infos.Count);
DomainParticipant otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.INFOREPO_DOMAIN);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindTcpTransportConfig();
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(otherParticipant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
TopicQos qos = TestHelper.CreateNonDefaultTopicQos();
var topic = otherParticipant.CreateTopic(TestContext.TestName, typeName, qos);
Assert.IsNotNull(topic);
Thread.Sleep(500);
ret = _dr.ReadNextInstance(data, infos, InstanceHandle.HandleNil);
Assert.AreEqual(ReturnCode.Ok, ret);
Assert.AreEqual(1, data.Count);
Assert.AreEqual(1, infos.Count); Assert.AreEqual(typeName, data.First().TypeName);
Assert.IsNotNull(data.First().Key);
TestHelper.TestNonDefaultTopicData(data.First());
var handle = infos.First().InstanceHandle;
data = new List <TopicBuiltinTopicData>();
infos = new List <SampleInfo>();
ret = _dr.TakeInstance(data, infos, handle);
Assert.AreEqual(ReturnCode.Ok, ret);
Assert.AreEqual(1, data.Count);
Assert.AreEqual(1, infos.Count);
Assert.AreEqual(typeName, data.First().TypeName);
Assert.IsNotNull(data.First().Key);
TestHelper.TestNonDefaultTopicData(data.First());
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
public void TestLookupInstance()
{
ReturnCode ret;
DomainParticipant otherParticipant = null;
Topic topic = null;
try
{
TopicBuiltinTopicData data = default;
SampleInfo info = new SampleInfo();
otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.INFOREPO_DOMAIN);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindRtpsUdpTransportConfig();
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(otherParticipant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
TopicQos qos = TestHelper.CreateNonDefaultTopicQos();
topic = otherParticipant.CreateTopic(TestContext.TestName, typeName, qos);
Assert.IsNotNull(topic);
int count = 200;
ret = ReturnCode.NoData;
while (ret != ReturnCode.Ok && count > 0)
{
Thread.Sleep(100);
ret = _dr.ReadNextSample(ref data, info);
count--;
}
Assert.AreEqual(ReturnCode.Ok, ret);
Assert.AreEqual(typeName, data.TypeName);
Assert.IsNotNull(data.Key);
TestHelper.TestNonDefaultTopicData(data);
// Lookup for an existing instance
var handle = _dr.LookupInstance(data);
Assert.AreNotEqual(InstanceHandle.HandleNil, handle);
}
finally
{
ret = otherParticipant.DeleteTopic(topic);
Assert.AreEqual(ReturnCode.Ok, ret);
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
}
/// <summary>
/// Creates a DomainParticipant, Topic, Publisher and DataWriters<Temperature>.
/// </summary>
public PublisherApplication(int domainId, bool useXmlQos = true)
{
// Start communicating in a domain, usually one participant per application
// Load QoS profile from USER_QOS_PROFILES.xml file
participant = DomainParticipantFactory.Instance.CreateParticipant(domainId);
// Create the topics
var alarmTopic = participant.CreateTopic <Alarm>("Alarm");
var heartRateTopic = participant.CreateTopic <HeartRate>("HeartRate");
var temperatureTopic = participant.CreateTopic <Temperature>("Temperature");
// Create a Publisher
PublisherQos publisherQos = null;
if (useXmlQos)
{
// Retrieve the Publisher QoS, from USER_QOS_PROFILES.xml
publisherQos = QosProvider.Default.GetPublisherQos();
}
else
{
// Set the Publisher QoS programatically, to the same effect
publisherQos = participant.DefaultPublisherQos
.WithPresentation(policy =>
{
policy.AccessScope = PresentationAccessScopeKind.Group;
policy.CoherentAccess = true;
policy.OrderedAccess = true;
});
}
publisher = participant.CreatePublisher(publisherQos);
// Create a DataWriter for each topic
DataWriterQos writerQos = null;
if (useXmlQos)
{
// Retrieve the DataWriter QoS, from USER_QOS_PROFILES.xml
writerQos = QosProvider.Default.GetDataWriterQos();
}
else
{
// Set the DataWriter QoS programatically, to the same effect
writerQos = publisher.DefaultDataWriterQos
.WithReliability(policy => policy.Kind = ReliabilityKind.Reliable)
.WithHistory(policy => policy.Kind = HistoryKind.KeepAll);
}
alarmWriter = publisher.CreateDataWriter(alarmTopic, writerQos);
heartRateWriter = publisher.CreateDataWriter(heartRateTopic, writerQos);
temperatureWriter = publisher.CreateDataWriter(temperatureTopic, writerQos);
}
public bool Initialize(Parameters parameters)
{
this.parameters = parameters;
if (!ParseConfig())
{
return(false);
}
string baseProfile = parameters.QosLibrary + "::BaseProfileQos";
string pingProfile = parameters.QosLibrary + "::ThroughputQos";
string pongProfile = parameters.QosLibrary + "::ThroughputQos";
var qosProvider = new QosProvider(parameters.QosFile);
var participantQos = GetParticipantQos(baseProfile);
if (parameters.LatencyTest)
{
pongSemaphore = new Semaphore(0, 1);
}
if (SecureUseSecure)
{
// validate arguments
if (!ValidateSecureArgs())
{
Console.Error.WriteLine("Failure validating arguments");
return(false);
}
ConfigureSecurePlugin(ref participantQos);
}
participant = DomainParticipantFactory.Instance.CreateParticipant(parameters.Domain, participantQos);
if (participant == null)
{
Console.Error.Write("Problem creating participant.\n");
return(false);
}
publisher = participant.CreatePublisher(qosProvider.GetPublisherQos(pingProfile));
if (publisher == null)
{
Console.Error.WriteLine("Problem creating publisher.");
return(false);
}
subscriber = participant.CreateSubscriber(qosProvider.GetSubscriberQos(pongProfile));
if (subscriber == null)
{
Console.Error.WriteLine("Problem creating subscriber.");
return(false);
}
return(true);
}
public void TestInitialize()
{
_participant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN);
Assert.IsNotNull(_participant);
_participant.BindRtpsUdpTransportConfig();
AthleteTypeSupport athleteSupport = new AthleteTypeSupport();
string athleteTypeName = athleteSupport.GetTypeName();
ReturnCode result = athleteSupport.RegisterType(_participant, athleteTypeName);
Assert.AreEqual(ReturnCode.Ok, result);
_athleteTopic = _participant.CreateTopic("AthleteTopic", athleteTypeName);
Assert.IsNotNull(_athleteTopic);
Assert.IsNull(_athleteTopic.Listener);
Assert.AreEqual("AthleteTopic", _athleteTopic.Name);
Assert.AreEqual(athleteTypeName, _athleteTopic.TypeName);
ResultTypeSupport resultSupport = new ResultTypeSupport();
string resultTypeName = resultSupport.GetTypeName();
result = resultSupport.RegisterType(_participant, resultTypeName);
Assert.AreEqual(ReturnCode.Ok, result);
_resultTopic = _participant.CreateTopic("ResultTopic", resultTypeName);
Assert.IsNotNull(_resultTopic);
Assert.IsNull(_resultTopic.Listener);
Assert.AreEqual("ResultTopic", _resultTopic.Name);
Assert.AreEqual(resultTypeName, _resultTopic.TypeName);
_subscriber = _participant.CreateSubscriber();
Assert.IsNotNull(_subscriber);
_publisher = _participant.CreatePublisher();
Assert.IsNotNull(_publisher);
_athleteWriter = _publisher.CreateDataWriter(_athleteTopic);
Assert.IsNotNull(_athleteWriter);
_athleteDataWriter = new AthleteDataWriter(_athleteWriter);
Assert.IsNotNull(_athleteDataWriter);
_resultWriter = _publisher.CreateDataWriter(_resultTopic);
Assert.IsNotNull(_resultWriter);
_resultDataWriter = new ResultDataWriter(_resultWriter);
Assert.IsNotNull(_resultDataWriter);
DataReaderQos qos = new DataReaderQos();
qos.Reliability.Kind = ReliabilityQosPolicyKind.ReliableReliabilityQos;
_reader = _subscriber.CreateDataReader(_athleteTopic, qos);
Assert.IsNotNull(_reader);
}
public void TestInitialize()
{
_participant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN);
Assert.IsNotNull(_participant);
_participant.BindRtpsUdpTransportConfig();
_subscriber = _participant.GetBuiltinSubscriber();
Assert.IsNotNull(_subscriber);
_dataReader = _subscriber.LookupDataReader(SubscriptionBuiltinTopicDataDataReader.BUILT_IN_SUBSCRIPTION_TOPIC);
Assert.IsNotNull(_dataReader);
_dr = new SubscriptionBuiltinTopicDataDataReader(_dataReader);
}
/// <summary>
/// Creates a DomainParticipant, Topic, Publisher and DataWriter.
/// </summary>
public ShapeTypePublisher(int domainId, string typeSource = "build")
{
participant = DomainParticipantFactory.Instance.CreateParticipant(domainId);
// Get the ShapeType definition using one of the available options
DynamicType type = ShapeTypeHelper.GetShapeType(typeSource);
Topic <DynamicData> topic = participant.CreateTopic("Square", type);
Publisher publisher = participant.CreatePublisher();
writer = publisher.CreateDataWriter(topic);
}
private void RunExample(int domainId, int sampleCount)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// DomainParticipant QoS is configured in USER_QOS_PROFILES.xml
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId);
// A Topic has a name and a datatype. Create a Topic named
// "ChocolateTemperature" with type Temperature
// In this example we use a DynamicType defined in XML, which creates
// a DynamicData topic.
var provider = new QosProvider("../chocolate_factory.xml");
Topic <DynamicData> topic = participant.CreateTopic(
"ChocolateTemperature",
provider.GetType("Temperature"));
// A Subscriber allows an application to create one or more DataReaders
// Subscriber QoS is configured in USER_QOS_PROFILES.xml
Subscriber subscriber = participant.CreateSubscriber();
// This DataReader reads data of type Temperature on Topic
// "ChocolateTemperature". DataReader QoS is configured in
// USER_QOS_PROFILES.xml
DataReader <DynamicData> 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)
int samplesRead = 0;
statusCondition.Triggered += _ => samplesRead += ProcessData(reader);
// Create a WaitSet and attach the StatusCondition
var waitset = new WaitSet();
waitset.AttachCondition(statusCondition);
while (samplesRead < sampleCount && !shutdownRequested)
{
// Dispatch will call the handlers associated to the WaitSet
// conditions when they activate
Console.WriteLine("ChocolateTemperature subscriber sleeping for 4 sec...");
waitset.Dispatch(Duration.FromSeconds(4));
}
}
private static void BindRtpsUdpTransportConfig(DomainParticipant participant)
{
long ticks = DateTime.Now.Ticks;
string configName = "openddsharp_rtps_interop_" + ticks.ToString();
string instName = "internal_openddsharp_rtps_transport_" + ticks.ToString();
TransportConfig config = TransportRegistry.Instance.CreateConfig(configName);
TransportInst inst = TransportRegistry.Instance.CreateInst(instName, "rtps_udp");
RtpsUdpInst rui = new RtpsUdpInst(inst);
config.Insert(inst);
TransportRegistry.Instance.BindConfig(configName, participant);
}
public void TestInitialize()
{
_participant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.INFOREPO_DOMAIN);
Assert.IsNotNull(_participant);
_participant.BindTcpTransportConfig();
_subscriber = _participant.GetBuiltinSubscriber();
Assert.IsNotNull(_subscriber);
_dataReader = _subscriber.LookupDataReader(TopicBuiltinTopicDataDataReader.BUILT_IN_TOPIC_TOPIC);
Assert.IsNotNull(_dataReader);
_dr = new TopicBuiltinTopicDataDataReader(_dataReader);
}
private static void BindRtpsUdpTransportConfig(DomainParticipant participant)
{
string guid = Guid.NewGuid().ToString("N", CultureInfo.InvariantCulture);
string configName = "openddsharp_rtps_interop_" + guid;
string instName = "internal_openddsharp_rtps_transport_" + guid;
TransportConfig config = TransportRegistry.Instance.CreateConfig(configName);
TransportInst inst = TransportRegistry.Instance.CreateInst(instName, "rtps_udp");
RtpsUdpInst rui = new RtpsUdpInst(inst);
config.Insert(rui);
TransportRegistry.Instance.BindConfig(configName, participant);
}
public void TestRead()
{
List <PublicationBuiltinTopicData> data = new List <PublicationBuiltinTopicData>();
List <SampleInfo> infos = new List <SampleInfo>();
ReturnCode ret = _dr.Read(data, infos);
Assert.AreEqual(ReturnCode.NoData, ret);
Assert.AreEqual(0, data.Count);
Assert.AreEqual(0, infos.Count);
DomainParticipant otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindRtpsUdpTransportConfig();
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(otherParticipant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
var topic = otherParticipant.CreateTopic(TestContext.TestName, typeName);
Assert.IsNotNull(topic);
var publisher = otherParticipant.CreatePublisher();
Assert.IsNotNull(publisher);
DataWriterQos dwQos = TestHelper.CreateNonDefaultDataWriterQos();
dwQos.Ownership.Kind = OwnershipQosPolicyKind.SharedOwnershipQos;
DataWriter dataWriter = publisher.CreateDataWriter(topic, dwQos);
Assert.IsNotNull(dataWriter);
Thread.Sleep(500);
ret = _dr.Read(data, infos);
Assert.AreEqual(ReturnCode.Ok, ret);
Assert.AreEqual(1, data.Count);
Assert.AreEqual(1, infos.Count);
TestHelper.TestNonDefaultPublicationData(data.First());
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
/// <summary>
/// Runs the publisher example.
/// </summary>
public static void RunPublisher(int domainId, int sampleCount, bool useXmlConfig = true)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// DomainParticipant QoS is configured in USER_QOS_PROFILES.xml
//
// A participant needs to be Disposed to release middleware resources.
// The 'using' keyword indicates that it will be Disposed when this
// scope ends.
using DomainParticipant participant = DomainParticipantFactory.Instance.CreateParticipant(domainId);
// A Topic has a name and a datatype.
Topic <StockPrice> topic = participant.CreateTopic <StockPrice>("Example market_data");
// A Publisher allows an application to create one or more DataWriters
// Publisher QoS is configured in USER_QOS_PROFILES.xml
Publisher publisher = participant.CreatePublisher();
DataWriterQos writerQos;
if (useXmlConfig)
{
// Gets the default DataWriterQos defined in USER_QOS_PROFILES.xml
writerQos = QosProvider.Default.GetDataWriterQos();
}
else
{
// Creates the DataWriterQos programmatically to the same effect
// as the one defined in XML.
writerQos = publisher.DefaultDataWriterQos.WithMultiChannel(
CreateMultiChannelQosPolicy());
}
DataWriter <StockPrice> writer = publisher.CreateDataWriter(topic, writerQos);
var sample = new StockPrice();
for (int count = 0; count < sampleCount; count++)
{
// Update the symbol and price
char symbol = (char)('A' + (count % 26));
sample.Symbol = symbol.ToString();
sample.Price = count;
writer.Write(sample);
Thread.Sleep(100);
}
}
public void TestGetKeyValue()
{
// Call GetKeyValue with HandleNil
TopicBuiltinTopicData data = default;
SampleInfo info = new SampleInfo();
ReturnCode ret = _dr.GetKeyValue(ref data, InstanceHandle.HandleNil);
Assert.AreEqual(ReturnCode.BadParameter, ret);
DomainParticipant otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.INFOREPO_DOMAIN);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindTcpTransportConfig();
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(otherParticipant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
TopicQos qos = TestHelper.CreateNonDefaultTopicQos();
var topic = otherParticipant.CreateTopic(TestContext.TestName, typeName, qos);
Assert.IsNotNull(topic);
Thread.Sleep(500);
// Get the for an existing instance
ret = _dr.ReadNextSample(ref data, info);
Assert.AreEqual(ReturnCode.Ok, ret);
Assert.AreEqual(typeName, data.TypeName);
Assert.IsNotNull(data.Key);
TestHelper.TestNonDefaultTopicData(data);
TopicBuiltinTopicData aux = default;
ret = _dr.GetKeyValue(ref aux, info.InstanceHandle);
Assert.AreEqual(ReturnCode.Ok, ret);
for (int i = 0; i < 3; i++)
{
Assert.AreEqual(data.Key.Value[i], aux.Key.Value[i]);
}
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
public void TestLookupInstance()
{
PublicationBuiltinTopicData data = default;
SampleInfo info = new SampleInfo();
DomainParticipant otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindRtpsUdpTransportConfig();
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(otherParticipant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
var topic = otherParticipant.CreateTopic(TestContext.TestName, typeName);
Assert.IsNotNull(topic);
var publisher = otherParticipant.CreatePublisher();
Assert.IsNotNull(publisher);
DataWriterQos dwQos = TestHelper.CreateNonDefaultDataWriterQos();
dwQos.Ownership.Kind = OwnershipQosPolicyKind.SharedOwnershipQos;
DataWriter dataWriter = publisher.CreateDataWriter(topic, dwQos);
Assert.IsNotNull(dataWriter);
Thread.Sleep(500);
ReturnCode ret = _dr.ReadNextSample(ref data, info);
Assert.AreEqual(ReturnCode.Ok, ret);
// Lookup for an existing instance
var handle = _dr.LookupInstance(data);
Assert.AreNotEqual(InstanceHandle.HandleNil, handle);
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
TestHelper.TestNonDefaultPublicationData(data);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
public ReturnCode DeleteParticipant(IDomainParticipant a_participant)
{
ReturnCode result = ReturnCode.BadParameter;
DomainParticipant participant = a_participant as DomainParticipant;
if (participant != null)
{
result = OpenSplice.Gapi.DomainParticipantFactory.delete_participant(
GapiPeer,
participant.GapiPeer);
}
return(result);
}
public void RegisterParticipant(DomainParticipant participant)
{
lock (this)
{
DomainParticipantImpl part = participant as DomainParticipantImpl;
if (part != null)
{
participants.Add(part.ParticipantGuid, part);
if (!participantsInDomains.ContainsKey(part.DomainId))
participantsInDomains.Add(part.DomainId, new SortedSet<DomainParticipantImpl>());
participantsInDomains[part.DomainId].Add(part);
NotifyParticipantChanges(DiscoveryDomainParticipantEventReason.NEW_PARTICIPANT, participant);
}
}
}
public void UnregisterParticipant(DomainParticipant participant)
{
lock (this)
{
DomainParticipantImpl part = participant as DomainParticipantImpl;
if (part != null)
{
participants.Remove(part.ParticipantGuid);
participantsInDomains[part.DomainId].Remove(part);
if (participantsInDomains[part.DomainId].Count == 0)
participantsInDomains.Remove(part.DomainId);
NotifyParticipantChanges(DiscoveryDomainParticipantEventReason.DELETED_PARTICIPANT, participant);
}
}
}
/// <summary>
/// Creates a DomainParticipant, Topic, Publisher and DataWriter<HelloWorld>.
/// </summary>
public HelloWorldPublisher(int domainId)
{
// 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>(
"Example InstanceStatisticsExample_HelloWorld");
// Create a Publisher
Publisher publisher = participant.CreatePublisher();
// Create a DataWriter, loading QoS profile from USER_QOS_PROFILES.xml
writer = publisher.CreateDataWriter(topic);
}
private static void TestOnInconsistentTopic()
{
DomainParticipantFactory dpf = ParticipantService.Instance.GetDomainParticipantFactory();
DomainParticipant participant = dpf.CreateParticipant(RTPS_DOMAIN);
if (participant == null)
{
throw new ApplicationException("Failed to create the participant.");
}
BindRtpsUdpTransportConfig(participant);
Subscriber subscriber = participant.CreateSubscriber();
if (subscriber == null)
{
throw new ApplicationException("Failed to create the subscriber.");
}
AthleteTypeSupport support = new AthleteTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(participant, typeName);
if (result != ReturnCode.Ok)
{
throw new ApplicationException("Failed to register the type." + result.ToString());
}
Topic topic = participant.CreateTopic(nameof(TestOnInconsistentTopic), typeName);
if (topic == null)
{
throw new ApplicationException("Failed to create the topic.");
}
DataReader reader = subscriber.CreateDataReader(topic);
if (reader == null)
{
throw new ApplicationException("Failed to create the reader.");
}
while (true)
{
System.Threading.Thread.Sleep(100);
}
}
/// <summary>
/// Creates a DomainParticipant, Topic, Publisher and DataWriter.
/// </summary>
public HelloWorldPublisher(
int domainId,
string expectedPassword,
string topicName)
{
// Save the expected password. We will only communicate with
// subscriptions that send this password via discovery.
this.expectedPassword = expectedPassword;
// Configure the participant QoS to increase the user data max length
DomainParticipantQos participantQos =
DomainParticipantFactory.Instance.DefaultParticipantQos
.WithResourceLimits(policy => policy.ParticipantUserDataMaxLength = 1024);
// Create the participant
participant = DomainParticipantFactory.Instance.CreateParticipant(
domainId,
qos: participantQos,
preEnableAction: p =>
{
// The preEnableAction is executed right before the participant
// is enabled and communication starts. By looking up the
// built-in discovery readers here we ensure that
// that they will receive all the discovery information.
participantReader = p.BuiltinSubscriber
.LookupDataReader <ParticipantBuiltinTopicData>(
Subscriber.ParticipantBuiltinTopicName);
// The DataAvailable event is called when another participant
// is discovered and before this participant has started
// communicating with it
participantReader.DataAvailable += OnNewParticipant;
subscriptionReader = p.BuiltinSubscriber
.LookupDataReader <SubscriptionBuiltinTopicData>(
Subscriber.SubscriptionBuiltinTopicName);
subscriptionReader.DataAvailable += OnNewSubscription;
}
);
// Create a topic, a publisher and a writer
Topic <HelloWorld> topic = participant.CreateTopic <HelloWorld>(topicName);
Publisher publisher = participant.CreatePublisher();
writer = publisher.CreateDataWriter(topic);
}
public void TestInitialize()
{
_participant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN);
Assert.IsNotNull(_participant);
_participant.BindRtpsUdpTransportConfig();
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(_participant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
_topic = _participant.CreateTopic(TestContext.TestName, typeName);
Assert.IsNotNull(_topic);
Assert.IsNull(_topic.GetListener());
Assert.AreEqual(TestContext.TestName, _topic.Name);
Assert.AreEqual(typeName, _topic.TypeName);
SubscriberQos sQos = new SubscriberQos();
sQos.EntityFactory.AutoenableCreatedEntities = false;
sQos.Presentation.OrderedAccess = true;
sQos.Presentation.CoherentAccess = true;
sQos.Presentation.AccessScope = PresentationQosPolicyAccessScopeKind.InstancePresentationQos;
_subscriber = _participant.CreateSubscriber(sQos);
Assert.IsNotNull(_subscriber);
PublisherQos pQos = new PublisherQos();
pQos.EntityFactory.AutoenableCreatedEntities = false;
pQos.Presentation.OrderedAccess = true;
pQos.Presentation.CoherentAccess = true;
pQos.Presentation.AccessScope = PresentationQosPolicyAccessScopeKind.InstancePresentationQos;
_publisher = _participant.CreatePublisher(pQos);
Assert.IsNotNull(_publisher);
_listener = new MyDataWriterListener();
_writer = _publisher.CreateDataWriter(_topic, _listener);
Assert.IsNotNull(_writer);
_dataWriter = new TestStructDataWriter(_writer);
DataReaderQos qos = new DataReaderQos();
qos.Reliability.Kind = ReliabilityQosPolicyKind.ReliableReliabilityQos;
_reader = _subscriber.CreateDataReader(_topic, qos);
Assert.IsNotNull(_reader);
}
private static void TestOnSubscriptionLostDisconnected()
{
DomainParticipantFactory dpf = ParticipantService.Instance.GetDomainParticipantFactory();
DomainParticipant participant = dpf.CreateParticipant(INFOREPO_DOMAIN);
if (participant == null)
{
throw new ApplicationException("Failed to create the participant.");
}
BindTcpTransportConfig(participant);
Publisher publisher = participant.CreatePublisher();
if (publisher == null)
{
throw new ApplicationException("Failed to create the publisher.");
}
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(participant, typeName);
if (result != ReturnCode.Ok)
{
throw new ApplicationException("Failed to register the type." + result.ToString());
}
Topic topic = participant.CreateTopic("TestOnSubscriptionLostDisconnected", typeName);
if (topic == null)
{
throw new ApplicationException("Failed to create the topic.");
}
DataWriter writer = publisher.CreateDataWriter(topic);
if (writer == null)
{
throw new ApplicationException("Failed to create the writer.");
}
while (true)
{
System.Threading.Thread.Sleep(100);
}
}
public void TestTakeInstance()
{
List <ParticipantBuiltinTopicData> data = new List <ParticipantBuiltinTopicData>();
List <SampleInfo> infos = new List <SampleInfo>();
ReturnCode ret = _dr.Read(data, infos);
Assert.AreEqual(ReturnCode.NoData, ret);
Assert.AreEqual(0, data.Count);
Assert.AreEqual(0, infos.Count);
DomainParticipantQos qos = new DomainParticipantQos();
qos.UserData.Value = new byte[] { 0x42 };
DomainParticipant otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN, qos);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindRtpsUdpTransportConfig();
Thread.Sleep(500);
ret = _dr.ReadNextInstance(data, infos, InstanceHandle.HandleNil);
Assert.AreEqual(ReturnCode.Ok, ret);
Assert.AreEqual(1, data.Count);
Assert.AreEqual(1, infos.Count);
Assert.AreEqual(1, data.First().UserData.Value.Count());
Assert.AreEqual(0x42, data.First().UserData.Value.First());
var handle = infos.First().InstanceHandle;
data = new List <ParticipantBuiltinTopicData>();
infos = new List <SampleInfo>();
ret = _dr.TakeInstance(data, infos, handle);
Assert.AreEqual(ReturnCode.Ok, ret);
Assert.AreEqual(1, data.Count);
Assert.AreEqual(1, infos.Count);
Assert.AreEqual(1, data.First().UserData.Value.Count());
Assert.AreEqual(0x42, data.First().UserData.Value.First());
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
/// <summary>
/// Runs the subscriber example.
/// </summary>
public static async Task RunSubscriber(
int domainId,
int sampleCount,
CancellationToken cancellationToken)
{
// Start communicating in a domain, usually one participant per application
// Load default QoS profile from USER_QOS_PROFILES.xml file
using DomainParticipant participant =
DomainParticipantFactory.Instance.CreateParticipant(domainId);
// A Topic has a name and a datatype.
Topic <HelloWorld> topic =
participant.CreateTopic <HelloWorld>("Example cfc");
// Create a subscriber
Subscriber subscriber = participant.CreateSubscriber();
// Create a DataReader with the default QoS profile defined in
// USER_QOS_PROFILES.xml
DataReader <HelloWorld> reader = subscriber.CreateDataReader(topic);
var beginTime = DateTime.Now;
// TakeAsync provides an IAsyncEnumerable that returns new data
// samples when they are available, awaiting as necessary. The
// cancellation token allows stopping the loop.
int samplesRead = 0;
await foreach (var sample in reader
.TakeAsync()
.WithCancellation(cancellationToken))
{
if (sample.Info.ValidData)
{
samplesRead++;
var elapsedTime = (DateTime.Now - beginTime).TotalSeconds;
Console.WriteLine($"At t={elapsedTime}s, got x={sample.Data.x}");
if (samplesRead == sampleCount)
{
break;
}
}
}
}
public void TestTakeNextSample()
{
SubscriptionBuiltinTopicData data = default;
SampleInfo infos = new SampleInfo();
ReturnCode ret = _dr.TakeNextSample(ref data, infos);
Assert.AreEqual(ReturnCode.NoData, ret);
DomainParticipant otherParticipant = AssemblyInitializer.Factory.CreateParticipant(AssemblyInitializer.RTPS_DOMAIN);
Assert.IsNotNull(otherParticipant);
otherParticipant.BindRtpsUdpTransportConfig();
TestStructTypeSupport support = new TestStructTypeSupport();
string typeName = support.GetTypeName();
ReturnCode result = support.RegisterType(otherParticipant, typeName);
Assert.AreEqual(ReturnCode.Ok, result);
var topic = otherParticipant.CreateTopic(TestContext.TestName, typeName);
Assert.IsNotNull(topic);
var subscriber = otherParticipant.CreateSubscriber();
Assert.IsNotNull(subscriber);
DataReaderQos drQos = TestHelper.CreateNonDefaultDataReaderQos();
DataReader dataReader = subscriber.CreateDataReader(topic, drQos);
Assert.IsNotNull(dataReader);
Thread.Sleep(500);
ret = _dr.TakeNextSample(ref data, infos);
Assert.AreEqual(ReturnCode.Ok, ret);
TestHelper.TestNonDefaultSubscriptionData(data);
ret = otherParticipant.DeleteContainedEntities();
Assert.AreEqual(ReturnCode.Ok, ret);
ret = AssemblyInitializer.Factory.DeleteParticipant(otherParticipant);
Assert.AreEqual(ReturnCode.Ok, ret);
}
private void NotifyParticipantChanges(DiscoveryDomainParticipantEventReason reason, DomainParticipant participant)
{
log.DebugFormat("The information about DomainParticipants has changed. Reason {0}, Participant {1}", reason, participant);
if (ParticipantDiscovery != null)
{
DiscoveryDomainParticipantEventArgs dpea = new DiscoveryDomainParticipantEventArgs()
{
Reason = reason,
Participant = participant
};
ParticipantDiscovery(this, dpea);
}
}