C++ StatusCondition_var::set_enabled_statuses方法代码示例

/**
 * Handles zero copy message sets. Consider your requirements and edit timeout nad matched status bits as needed.
 * QoS should drive all of you design decisions.
 */
void CAppNodeImpl::HandleWaitCondition()
{
	// Block until Subscriber is available
	DDS::StatusCondition_var condition = _writer->get_statuscondition();
	condition->set_enabled_statuses( DDS::PUBLICATION_MATCHED_STATUS );

	DDS::WaitSet_var waitSet = new DDS::WaitSet;
	waitSet->attach_condition( condition );

	DDS::ConditionSeq conditions;
	DDS::SubscriptionMatchedStatus matches = { 0, 0, 0, 0, 0 };
	DDS::Duration_t timeout = { 30, 0 };

	if ( waitSet->wait(conditions, timeout ) != DDS::RETCODE_OK )
	{
		LOG( ERROR ) << "wait condition failed.";
	}

	if ( _reader->get_subscription_matched_status( matches ) != DDS::RETCODE_OK )
	{
		LOG( ERROR ) << "Publication matched status failed.";
	}

	waitSet->detach_condition( condition );
}

int
OpenDDS::Model::WriterSync::wait_unmatch(const DDS::DataWriter_var& writer,
                                         unsigned int num_readers)
{
  DDS::ReturnCode_t stat;
  DDS::StatusCondition_var condition = writer->get_statuscondition();
  condition->set_enabled_statuses(DDS::PUBLICATION_MATCHED_STATUS);
  DDS::WaitSet_var ws = new DDS::WaitSet;
  ws->attach_condition(condition);
  DDS::ConditionSeq conditions;
  DDS::PublicationMatchedStatus ms = { 0, 0, 0, 0, 0 };
  DDS::Duration_t timeout = { 1, 0 };
  do {
    if (DCPS_debug_level > 4) {
      ACE_DEBUG((LM_NOTICE, ACE_TEXT("WriterSync: pub checking unmatched\n")));
    }
    stat = writer->get_publication_matched_status(ms);
    if (stat != DDS::RETCODE_OK) {
      ACE_ERROR_RETURN((
                  LM_ERROR,
                  ACE_TEXT("(%P|%t) ERROR: %N:%l: wait_unmatch() -")
                  ACE_TEXT(" get_publication_matched_status failed!\n")),
                 -1);
    } else if (ms.current_count == 0 && (unsigned int)ms.total_count >= num_readers) {
      if (DCPS_debug_level > 4) {
        ACE_DEBUG((LM_NOTICE, ACE_TEXT("WriterSync: pub match count %d total count %d\n"),
                                       ms.current_count, ms.total_count));
      }
      break;  // unmatched
    }
    if (DCPS_debug_level > 4) {
      ACE_DEBUG((LM_NOTICE, ACE_TEXT("WriterSync: pub match count %d total count %d\n"),
                                     ms.current_count, ms.total_count));
    }
    // wait for a change
    stat = ws->wait(conditions, timeout);
    if ((stat != DDS::RETCODE_OK) && (stat != DDS::RETCODE_TIMEOUT)) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("(%P|%t) ERROR: %N:%l: wait_unmatch() -")
                        ACE_TEXT(" wait failed!\n")),
                       -1);
    }
  } while (true);
  ws->detach_condition(condition);
  if (DCPS_debug_level > 4) {
    ACE_DEBUG((LM_NOTICE, ACE_TEXT("WriterSync: pub unmatched\n")));
  }
  return 0;
}

bool
wait_subscription_matched_status(const Options& /*opts*/, const DDS::DataReader_ptr r)
{
  //  To check the match status ?
  DDS::SubscriptionMatchedStatus matches = {0, 0, 0, 0, 0};
  TEST_ASSERT((r->get_subscription_matched_status(matches) == ::DDS::RETCODE_OK));

  // Block until Subscriber is available
  DDS::StatusCondition_var condition = r->get_statuscondition();
  condition->set_enabled_statuses(DDS::PUBLICATION_MATCHED_STATUS
                                  | DDS::SUBSCRIPTION_MATCHED_STATUS
                                  //                                  | DDS::REQUESTED_INCOMPATIBLE_QOS_STATUS
                                  //                                  | DDS::OFFERED_INCOMPATIBLE_QOS_STATUS
                                  );

  DDS::WaitSet_var ws = new DDS::WaitSet;
  ws->attach_condition(condition);

//  int duration = opts.test_duration;
  DDS::Duration_t timeout = {
    DDS::DURATION_INFINITE_SEC,
    DDS::DURATION_INFINITE_NSEC
//    (duration < 0) ? DDS::DURATION_INFINITE_SEC : duration,
//    (duration < 0) ? DDS::DURATION_INFINITE_NSEC : 0
  };

  DDS::ConditionSeq conditions;

  int status = ws->wait(conditions, timeout);
  ws->detach_condition(condition);

  if (status != DDS::RETCODE_OK)
    {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("(%P|%t)")
                        ACE_TEXT(" ERROR: wait failed: %p\n")), false);
    }

  return true;
}

//.........这里部分代码省略.........
      if (CORBA::is_nil (dr1.in ()) || CORBA::is_nil (dr2.in ()))
      {
        cerr << "ERROR: create_datareader failed." << endl;
        exit(1);
      }

      DataReaderListenerImpl* listener_servant1 =
        dynamic_cast<DataReaderListenerImpl*>(listener1.in());
      DataReaderListenerImpl* listener_servant2 =
        dynamic_cast<DataReaderListenerImpl*>(listener2.in());

      int expected = 10;
      // Writer of deadline 4 -> Reader of deadline 5
      while ( listener_servant1->num_reads() < expected) {
        //cout << "subscriber listener1 waiting for " << expected
             //<< " reads, got " << listener_servant1->num_reads() << std::endl;
        ACE_OS::sleep (1);
      }

      // Writer of deadline 4 and Reader of deadline 3 is not
      // compatible so second DataReader should not receive
      // any message from DataWriter.
      if (listener_servant2->num_reads() > 0)
      {
        cerr << "ERROR: second DataReader should not receive message from "
          << "datawriter as their deadline QoS is not compatible" << endl;
        exit (1);
      }

      // Wait for dr1 to be unmatched from the writer (due to writer set_qos).
      ACE_DEBUG((LM_DEBUG, "(%P|%t) check for dr1 unmatch\n"));
      DDS::WaitSet_var ws = new DDS::WaitSet;
      DDS::StatusCondition_var sc = dr1->get_statuscondition();
      sc->set_enabled_statuses(DDS::SUBSCRIPTION_MATCHED_STATUS);
      ws->attach_condition(sc);
      DDS::SubscriptionMatchedStatus matched;
      const DDS::Duration_t timeout = {5, 0}; // seconds
      while (dr1->get_subscription_matched_status(matched) == DDS::RETCODE_OK
             && matched.current_count == matched.total_count)
      {
        DDS::ConditionSeq active;
        ACE_DEBUG((LM_DEBUG, "(%P|%t) wait for dr1 unmatch\n"));
        if (ws->wait(active, timeout) == DDS::RETCODE_TIMEOUT)
        {
          cerr << "ERROR: timeout expired while waiting for dr1 to be "
            "unmatched from the writer which now has a 6 second deadline\n";
          exit (1);
        }
      }
      ws->detach_condition(sc);
      ACE_DEBUG((LM_DEBUG, "(%P|%t) done dr1 unmatch\n"));

      // Now change second DataReader to have deadline period to be 5 seconds. This
      // value is compatible with DataWriter so it will be matched.
      dr_qos.deadline.period.sec = 5;

      if (dr2->set_qos (dr_qos) != ::DDS::RETCODE_OK)
      {
        cerr << "ERROR: DataReader changed deadline period to make it compatible "
          << "with datawriter" << endl;
        exit (1);
      }

      // second DataReader should receive 20 messages so far.
      while ( listener_servant1->num_reads() < 2 * expected) {
        //cout << "subscriber listener1 waiting for " << 2 * expected

int
Writer::svc()
{
  DDS::InstanceHandleSeq handles;

  try {
    // Block until Subscriber is available
    DDS::StatusCondition_var condition = writer_->get_statuscondition();
    condition->set_enabled_statuses(DDS::PUBLICATION_MATCHED_STATUS);

    DDS::WaitSet_var ws = new DDS::WaitSet;
    ws->attach_condition(condition);

    DDS::Duration_t timeout =
      { DDS::DURATION_INFINITE_SEC, DDS::DURATION_INFINITE_NSEC };

    DDS::ConditionSeq conditions;
    DDS::PublicationMatchedStatus matches = {0, 0, 0, 0, 0};

    do {
      if (ws->wait(conditions, timeout) != DDS::RETCODE_OK) {
        ACE_ERROR((LM_ERROR,
                   ACE_TEXT("%N:%l: svc()")
                   ACE_TEXT(" ERROR: wait failed!\n")));
        ACE_OS::exit(-1);
      }

      if (writer_->get_publication_matched_status(matches) != ::DDS::RETCODE_OK) {
        ACE_ERROR((LM_ERROR,
                   ACE_TEXT("%N:%l: svc()")
                   ACE_TEXT(" ERROR: get_publication_matched_status failed!\n")));
        ACE_OS::exit(-1);
      }

    } while (matches.current_count < 2);

    ws->detach_condition(condition);

    // Write samples
    Messenger::MessageDataWriter_var message_dw
      = Messenger::MessageDataWriter::_narrow(writer_.in());

    if (CORBA::is_nil(message_dw.in())) {
        ACE_ERROR((LM_ERROR,
                   ACE_TEXT("%N:%l: svc()")
                   ACE_TEXT(" ERROR: _narrow failed!\n")));
        ACE_OS::exit(-1);
    }

    Messenger::Message message;

    message.from       = CORBA::string_dup(ownership_dw_id_.c_str());
    message.subject    = CORBA::string_dup("Review");
    message.text       = CORBA::string_dup("Worst. Movie. Ever.");
    message.count      = 1;
    message.strength   = ownership_strength;

    for (int i = 0; i < num_messages; i++) {
      message.subject_id = message.count % 2;  // 0 or 1
      ACE_DEBUG ((LM_DEBUG, "(%P|%t) %s writes instance %d count %d str %d\n",
      ownership_dw_id_.c_str(), message.subject_id, message.count, message.strength));
      DDS::ReturnCode_t error = message_dw->write(message, ::DDS::HANDLE_NIL);

      if (error != DDS::RETCODE_OK) {
        ACE_ERROR((LM_ERROR,
                   ACE_TEXT("%N:%l: svc()")
                   ACE_TEXT(" ERROR: write returned %d!\n"), error));

        if (error == DDS::RETCODE_TIMEOUT) {
          timeout_writes_++;
        }
      }

      if (message.count == 5) {
        ::DDS::DataWriterQos qos;
        error = this->writer_->get_qos (qos);
        if (error != ::DDS::RETCODE_OK) {
          ACE_ERROR((LM_ERROR,
                   ACE_TEXT("%N:%l: svc()")
                   ACE_TEXT(" ERROR: get_qos returned %d!\n"), error));
        }
        CORBA::Long old = qos.ownership_strength.value;
        if (reset_ownership_strength != -1 && old != reset_ownership_strength) {
          qos.ownership_strength.value = reset_ownership_strength;
          // Add a delay so the builtin topic data update arrives after samples
          // with previous strength is received by datareader. This helps simplify
          // result verification on subscriber side.
          ACE_OS::sleep (1);
          ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) %s : reset ownership strength from %d to %d\n"),
            ownership_dw_id_.c_str(), old, reset_ownership_strength));
          error = this->writer_->set_qos (qos);
          if (error != ::DDS::RETCODE_OK) {
            ACE_ERROR((LM_ERROR,
                   ACE_TEXT("%N:%l: svc()")
                   ACE_TEXT(" ERROR: set_qos returned %d!\n"), error));
          }
          else {
            message.strength   =  reset_ownership_strength;
            ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) ownership strength in message is now %d\n"),
              message.strength));
//.........这里部分代码省略.........

int
ParticipantTask::svc()
{
    try
    {
        ACE_DEBUG((LM_INFO, ACE_TEXT("(%P|%t)    -> PARTICIPANT STARTED\n")));

        ACE_Time_Value delay_between_pubs(0, this->delay_between_pubs_msec_ * 1000);

        DDS::DomainParticipantFactory_var dpf = TheParticipantFactory;
        // Create Participant
        DDS::DomainParticipant_var participant =
            dpf->create_participant(42,
                                    PARTICIPANT_QOS_DEFAULT,
                                    DDS::DomainParticipantListener::_nil(),
                                    ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);

        if (CORBA::is_nil(participant.in()))
            ACE_ERROR_RETURN((LM_ERROR,
                              ACE_TEXT("%N:%l: svc()")
                              ACE_TEXT(" create_participant failed!\n")), 1);

        // Create Publisher
        DDS::Publisher_var publisher =
            participant->create_publisher(PUBLISHER_QOS_DEFAULT,
                                          DDS::PublisherListener::_nil(),
                                          ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);

        if (CORBA::is_nil(publisher.in()))
            ACE_ERROR_RETURN((LM_ERROR,
                              ACE_TEXT("%N:%l: svc()")
                              ACE_TEXT(" create_publisher failed!\n")), 1);


        // Register Type (FooType)
        FooTypeSupport_var ts = new FooTypeSupportImpl;
        if (ts->register_type(participant.in(), "") != DDS::RETCODE_OK)
            ACE_ERROR_RETURN((LM_ERROR,
                              ACE_TEXT("%N:%l: svc()")
                              ACE_TEXT(" register_type failed!\n")), 1);

        // Create Topic (FooTopic)
        DDS::Topic_var topic =
            participant->create_topic("FooTopic",
                                      ts->get_type_name(),
                                      TOPIC_QOS_DEFAULT,
                                      DDS::TopicListener::_nil(),
                                      ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);

        if (CORBA::is_nil(topic.in()))
            ACE_ERROR_RETURN((LM_ERROR,
                              ACE_TEXT("%N:%l: svc()")
                              ACE_TEXT(" create_topic failed!\n")), 1);

        // Create DataWriter
        DDS::DataWriterQos writer_qos;
        publisher->get_default_datawriter_qos(writer_qos);

        writer_qos.history.depth = samples_per_thread_;

        if (deadline_.sec > 0 || deadline_.nanosec > 0)
        {
            writer_qos.deadline.period.sec = deadline_.sec;
            writer_qos.deadline.period.nanosec = deadline_.nanosec;
        }

        DDS::DataWriter_var writer =
            publisher->create_datawriter(topic.in(),
                                         writer_qos,
                                         DDS::DataWriterListener::_nil(),
                                         ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);

        if (CORBA::is_nil(writer.in()))
            ACE_ERROR_RETURN((LM_ERROR,
                              ACE_TEXT("%N:%l: svc()")
                              ACE_TEXT(" create_datawriter failed!\n")), 1);

        FooDataWriter_var writer_i = FooDataWriter::_narrow(writer);
        if (CORBA::is_nil(writer_i))
            ACE_ERROR_RETURN((LM_ERROR,
                              ACE_TEXT("%N:%l: svc()")
                              ACE_TEXT(" _narrow failed!\n")), 1);

        // Block until Subscriber is available
        DDS::StatusCondition_var cond = writer->get_statuscondition();
        cond->set_enabled_statuses(DDS::PUBLICATION_MATCHED_STATUS);

        DDS::WaitSet_var ws = new DDS::WaitSet;
        ws->attach_condition(cond);

        DDS::Duration_t timeout =
        { DDS::DURATION_INFINITE_SEC, DDS::DURATION_INFINITE_NSEC };

        DDS::ConditionSeq conditions;
        DDS::PublicationMatchedStatus matches = {0, 0, 0, 0, 0};
        do
        {
            if (ws->wait(conditions, timeout) != DDS::RETCODE_OK)
                ACE_ERROR_RETURN((LM_ERROR,
                                  ACE_TEXT("%N:%l: svc()")
//.........这里部分代码省略.........

//.........这里部分代码省略.........
      if (!publisher) {
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("ERROR: %N:%l: main() -")
                          ACE_TEXT(" create_publisher failed!\n")),
                         -1);
      }

      // Create DataWriter
      DDS::DataWriter_var writer =
        publisher->create_datawriter(topic,
                                     DATAWRITER_QOS_DEFAULT,
                                     0,
                                     OpenDDS::DCPS::DEFAULT_STATUS_MASK);

      if (!writer) {
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("ERROR: %N:%l: main() -")
                          ACE_TEXT(" create_datawriter failed!\n")),
                         -1);
      }

      Messenger::MessageDataWriter_var message_writer =
        Messenger::MessageDataWriter::_narrow(writer);

      if (!message_writer) {
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("ERROR: %N:%l: main() -")
                          ACE_TEXT(" _narrow failed!\n")),
                         -1);
      }

      // Block until Subscriber is available
      DDS::StatusCondition_var condition = writer->get_statuscondition();
      condition->set_enabled_statuses(DDS::PUBLICATION_MATCHED_STATUS);

      DDS::WaitSet_var ws = new DDS::WaitSet;
      ws->attach_condition(condition);

      while (true) {
        DDS::PublicationMatchedStatus matches;
        if (writer->get_publication_matched_status(matches) != ::DDS::RETCODE_OK) {
          ACE_ERROR_RETURN((LM_ERROR,
                            ACE_TEXT("ERROR: %N:%l: main() -")
                            ACE_TEXT(" get_publication_matched_status failed!\n")),
                           -1);
        }

        if (matches.current_count >= 1) {
          break;
        }

        DDS::ConditionSeq conditions;
        DDS::Duration_t timeout = { 60, 0 };
        if (ws->wait(conditions, timeout) != DDS::RETCODE_OK) {
          ACE_ERROR_RETURN((LM_ERROR,
                            ACE_TEXT("ERROR: %N:%l: main() -")
                            ACE_TEXT(" wait failed!\n")),
                           -1);
        }
      }

      ws->detach_condition(condition);

      // Write samples
      Messenger::Message message;
      message.subject_id = 99;

int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
  try {
    // Initialize DomainParticipantFactory
    DDS::DomainParticipantFactory_var dpf =
      TheParticipantFactoryWithArgs(argc, argv);

    // Create DomainParticipant
    DDS::DomainParticipant_var participant =
      dpf->create_participant(42,
                              PARTICIPANT_QOS_DEFAULT,
                              DDS::DomainParticipantListener::_nil(),
                              OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(participant.in())) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" create_participant failed!\n")),
                       -1);
    }

    // Register TypeSupport (Messenger::Message)
    Messenger::MessageTypeSupport_var ts =
      new Messenger::MessageTypeSupportImpl();

    if (ts->register_type(participant.in(), "") != DDS::RETCODE_OK) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" register_type failed!\n")),
                       -1);
    }

    // Create Topic (Movie Discussion List)
    CORBA::String_var type_name = ts->get_type_name();
    DDS::Topic_var topic =
      participant->create_topic("Movie Discussion List",
                                type_name.in(),
                                TOPIC_QOS_DEFAULT,
                                DDS::TopicListener::_nil(),
                                OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(topic.in())) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" create_topic failed!\n")),
                       -1);
    }

    // Create Publisher
    DDS::Publisher_var publisher =
      participant->create_publisher(PUBLISHER_QOS_DEFAULT,
                                    DDS::PublisherListener::_nil(),
                                    OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(publisher.in())) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" create_publisher failed!\n")),
                       -1);
    }

    // Create DataWriter
    DDS::DataWriter_var writer =
      publisher->create_datawriter(topic.in(),
                                   DATAWRITER_QOS_DEFAULT,
                                   DDS::DataWriterListener::_nil(),
                                   OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(writer.in())) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" create_datawriter failed!\n")),
                       -1);
    }

    Messenger::MessageDataWriter_var message_writer =
      Messenger::MessageDataWriter::_narrow(writer.in());

    if (CORBA::is_nil(message_writer.in())) {
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("ERROR: %N:%l: main() -")
                          ACE_TEXT(" _narrow failed!\n")),
                         -1);
    }

    // Block until Subscriber is available
    DDS::StatusCondition_var condition = writer->get_statuscondition();
    condition->set_enabled_statuses(DDS::PUBLICATION_MATCHED_STATUS);

    DDS::WaitSet_var ws = new DDS::WaitSet;
    ws->attach_condition(condition);

    DDS::ConditionSeq conditions;
    DDS::PublicationMatchedStatus matches = { 0, 0, 0, 0, 0 };
    DDS::Duration_t timeout = { 30, 0 };

    do {
      if (ws->wait(conditions, timeout) != DDS::RETCODE_OK) {
        ACE_ERROR_RETURN((LM_ERROR,
//.........这里部分代码省略.........

int ACE_TMAIN(int argc, ACE_TCHAR** argv)
{
  try {
    OpenDDS::Model::Application application(argc, argv);
    UDP::DefaultUDPType model(application, argc, argv);

    using OpenDDS::Model::UDP::Elements;

    DDS::DataWriter_var writer = model.writer( Elements::DataWriters::writer);

    // START OF EXISTING MESSENGER EXAMPLE CODE

    MessageDataWriter_var message_writer =
      MessageDataWriter::_narrow(writer.in());

    if (CORBA::is_nil(message_writer.in())) {
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("(%P|%t) ERROR: %N:%l: main() -")
                          ACE_TEXT(" _narrow failed!\n")),
                         -1);
    }

    // Block until Subscriber is available
    DDS::StatusCondition_var condition = writer->get_statuscondition();
    condition->set_enabled_statuses(DDS::PUBLICATION_MATCHED_STATUS);

    DDS::WaitSet_var ws = new DDS::WaitSet;
    ws->attach_condition(condition);

    DDS::ConditionSeq conditions;
    DDS::PublicationMatchedStatus matches = { 0, 0, 0, 0, 0 };
    DDS::Duration_t timeout = { 30, 0 };

    do {
      if (ws->wait(conditions, timeout) != DDS::RETCODE_OK) {
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("(%P|%t) ERROR: %N:%l: main() -")
                          ACE_TEXT(" wait failed!\n")),
                         -1);
      }

      if (writer->get_publication_matched_status(matches) != ::DDS::RETCODE_OK) {
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("(%P|%t) ERROR: %N:%l: main() -")
                          ACE_TEXT(" get_publication_matched_status failed!\n")),
                         -1);
      }

    } while (matches.current_count < 1);

    ws->detach_condition(condition);

    // Write samples
    Message message;
    message.subject_id = 99;

    message.from       = CORBA::string_dup("Comic Book Guy");
    message.subject    = CORBA::string_dup("Review");
    message.text       = CORBA::string_dup("Worst. Movie. Ever.");
    message.count      = 0;

    for (int i = 0; i < 10; i++) {
      DDS::ReturnCode_t error = message_writer->write(message, DDS::HANDLE_NIL);
      ++message.count;

      if (error != DDS::RETCODE_OK) {
        ACE_ERROR((LM_ERROR,
                   ACE_TEXT("(%P|%t) ERROR: %N:%l: main() -")
                   ACE_TEXT(" write returned %d!\n"), error));
      }
    }

    // Cannot wait for samples to be acknowledged - not supported in UDP
    std::cout << "publisher sleeping...." << std::endl;
    ACE_OS::sleep(2);
    std::cout << "publisher done sleeping" << std::endl;

    // END OF EXISTING MESSENGER EXAMPLE CODE
  } catch (const CORBA::Exception& e) {
    e._tao_print_exception("Exception caught in main():");
    return -1;

  } catch( const std::exception& ex) {
    ACE_ERROR_RETURN((LM_ERROR,
                      ACE_TEXT("(%P|%t) ERROR: %N:%l: main() -")
                      ACE_TEXT(" Exception caught: %C\n"),
                      ex.what()),
                     -1);
  }

  return 0;
}

//.........这里部分代码省略.........
  TheTransportRegistry->bind_config(transport, this->publisher_);

  if( this->options_.verbose()) {
    ACE_DEBUG((LM_DEBUG,
      ACE_TEXT("(%P|%t) Publisher::Publisher() - ")
      ACE_TEXT("attached transport to publisher.\n")
    ));
  }

  // Writer Qos policy values.
  ::DDS::DataWriterQos writerQos;
  this->publisher_->get_default_datawriter_qos( writerQos);

  writerQos.durability.kind                          = ::DDS::TRANSIENT_LOCAL_DURABILITY_QOS;
  writerQos.history.kind                             = ::DDS::KEEP_ALL_HISTORY_QOS;
  writerQos.resource_limits.max_samples_per_instance = ::DDS::LENGTH_UNLIMITED;

  // Reliability varies with the transport implementation.
  switch( this->options_.transportType()) {
    case Options::TCP:
    case Options::MC:
      writerQos.reliability.kind = ::DDS::RELIABLE_RELIABILITY_QOS;
      break;

    case Options::UDP:
      writerQos.reliability.kind = ::DDS::BEST_EFFORT_RELIABILITY_QOS;
      break;

    case Options::TRANSPORT_NONE:
    default:
      ACE_ERROR((LM_ERROR,
        ACE_TEXT("(%P|%t) ERROR: Publisher::Publisher() - ")
        ACE_TEXT("unrecognized transport when setting up Qos policies.\n")
      ));
      throw BadQosException();
  }

  if( this->options_.verbose()) {
    ACE_DEBUG((LM_DEBUG,
      ACE_TEXT("(%P|%t) Publisher::Publisher() - ")
      ACE_TEXT("starting to create %d publications.\n"),
      this->options_.profiles().size()
    ));
  }

  // Build as many publications as are specified.
  for( unsigned int index = 0; index < this->options_.profiles().size(); ++index) {
    // This publications priority is needed when creating the writer.
    writerQos.transport_priority.value = this->options_.profiles()[ index]->priority();

    // Create the writer.
    DDS::DataWriter_var writer
      = this->publisher_->create_datawriter(
          this->topic_.in(),
          writerQos,
          DDS::DataWriterListener::_nil(),
          ::OpenDDS::DCPS::DEFAULT_STATUS_MASK
        );
    if( CORBA::is_nil( writer.in())) {
      ACE_ERROR((LM_ERROR,
        ACE_TEXT("(%P|%t) ERROR: Publisher::Publisher() - ")
        ACE_TEXT("failed to create writer.\n")
      ));
      throw BadWriterException();

    } else if( this->options_.verbose()) {
      ACE_DEBUG((LM_DEBUG,
        ACE_TEXT("(%P|%t) Publisher::Publisher() - ")
        ACE_TEXT("created writer for publication %C ")
        ACE_TEXT("with priority %d.\n"),
        this->options_.profiles()[ index]->name().c_str(),
        writerQos.transport_priority.value
      ));
    }

    // Create a publication and store it.
    this->publications_[ this->options_.profiles()[ index]->name()]
      = new Writer(
              writer.in(),
              *this->options_.profiles()[ index],
              this->options_.verbose()
            );

    //
    // Grab, enable and attach the status condition for test
    // synchronization of the current publication.
    //
    DDS::StatusCondition_var status = writer->get_statuscondition();
    status->set_enabled_statuses( DDS::PUBLICATION_MATCHED_STATUS);
    this->waiter_->attach_condition( status.in());

    if( this->options_.verbose()) {
      ACE_DEBUG((LM_DEBUG,
        ACE_TEXT("(%P|%t) Publisher::Publisher() - ")
        ACE_TEXT("created StatusCondition for publication %C.\n"),
        this->options_.profiles()[ index]->name().c_str()
      ));
    }
  }
}

//.........这里部分代码省略.........
                                    OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(reader.in()))
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l: main()")
                        ACE_TEXT(" ERROR: create_datareader failed!\n")), 7);

    FooDataReader_var reader_i = FooDataReader::_narrow(reader);
    if (CORBA::is_nil(reader_i))
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l: main()")
                        ACE_TEXT(" ERROR: _narrow failed!\n")), 1);

    // Create DataWriter
    DDS::DataWriter_var writer =
      publisher->create_datawriter(topic.in(),
                                   DATAWRITER_QOS_DEFAULT,
                                   DDS::DataWriterListener::_nil(),
                                   OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(writer.in()))
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l: main()")
                        ACE_TEXT(" ERROR: create_datawriter failed!\n")), 1);

    FooDataWriter_var writer_i = FooDataWriter::_narrow(writer);
    if (CORBA::is_nil(writer_i))
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l: main()")
                        ACE_TEXT(" ERROR: _narrow failed!\n")), 1);

    // Block until Subscriber is associated
    DDS::StatusCondition_var cond = writer->get_statuscondition();
    cond->set_enabled_statuses(DDS::PUBLICATION_MATCHED_STATUS);

    DDS::WaitSet_var ws = new DDS::WaitSet;
    ws->attach_condition(cond);

    DDS::Duration_t timeout =
      { DDS::DURATION_INFINITE_SEC, DDS::DURATION_INFINITE_NSEC };

    DDS::ConditionSeq conditions;
    DDS::PublicationMatchedStatus matches = { 0, 0, 0, 0, 0 };
    do
    {
      if (ws->wait(conditions, timeout) != DDS::RETCODE_OK)
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("%N:%l: main()")
                          ACE_TEXT(" ERROR: wait failed!\n")), 1);

      if (writer->get_publication_matched_status(matches) != ::DDS::RETCODE_OK)
      {
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("%N:%l: main()")
                          ACE_TEXT(" ERROR: failed to get publication matched status!\n")),
                          2);
      }
    }
    while (matches.current_count < 1);

    ws->detach_condition(cond);

    //
    // FooDataWriter::dispose should cause an instance to be
    // deleted after the last sample in the instance has been
    // taken from the ReceivedDataElementList:

int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
  int status = 0;
  try {
    // Initialize DomainParticipantFactory
    DDS::DomainParticipantFactory_var dpf =
      TheParticipantFactoryWithArgs(argc, argv);

    int error;
    if ((error = parse_args(argc, argv)) != 0) {
      return error;
    }

    // Create DomainParticipant
    DDS::DomainParticipant_var participant =
      dpf->create_participant(4,
                              PARTICIPANT_QOS_DEFAULT,
                              DDS::DomainParticipantListener::_nil(),
                              OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(participant.in())) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l main()")
                        ACE_TEXT(" ERROR: create_participant() failed!\n")), -1);
    }

    // Register Type (Messenger::Message)
    Messenger::MessageTypeSupport_var ts =
      new Messenger::MessageTypeSupportImpl();

    if (ts->register_type(participant.in(), "") != DDS::RETCODE_OK) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l main()")
                        ACE_TEXT(" ERROR: register_type() failed!\n")), -1);
    }

    // Create Topic (Movie Discussion List)
    CORBA::String_var type_name = ts->get_type_name();
    DDS::Topic_var topic =
      participant->create_topic("Movie Discussion List",
                                type_name.in(),
                                TOPIC_QOS_DEFAULT,
                                DDS::TopicListener::_nil(),
                                OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(topic.in())) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l main()")
                        ACE_TEXT(" ERROR: create_topic() failed!\n")), -1);
    }

    // Create Subscriber
    DDS::Subscriber_var sub =
      participant->create_subscriber(SUBSCRIBER_QOS_DEFAULT,
                                     DDS::SubscriberListener::_nil(),
                                     OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(sub.in())) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l main()")
                        ACE_TEXT(" ERROR: create_subscriber() failed!\n")), -1);
    }

    // Create DataReader
    DataReaderListenerImpl* const listener_servant = new DataReaderListenerImpl;
    DDS::DataReaderListener_var listener(listener_servant);

    DDS::DataReaderQos dr_qos;
    sub->get_default_datareader_qos(dr_qos);
    if (DataReaderListenerImpl::is_reliable()) {
      std::cout << "Reliable DataReader" << std::endl;
      dr_qos.reliability.kind = DDS::RELIABLE_RELIABILITY_QOS;
    }

    DDS::DataReader_var reader =
      sub->create_datareader(topic.in(),
                             dr_qos,
                             listener.in(),
                             OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(reader.in())) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l main()")
                        ACE_TEXT(" ERROR: create_datareader() failed!\n")), -1);
    }

    // Block until Publisher completes
    DDS::StatusCondition_var condition = reader->get_statuscondition();
    condition->set_enabled_statuses(DDS::SUBSCRIPTION_MATCHED_STATUS);

    DDS::WaitSet_var ws = new DDS::WaitSet;
    ws->attach_condition(condition);

    DDS::Duration_t timeout =
      { DDS::DURATION_INFINITE_SEC, DDS::DURATION_INFINITE_NSEC };

    DDS::ConditionSeq conditions;
    DDS::SubscriptionMatchedStatus matches = { 0, 0, 0, 0, 0 };

//.........这里部分代码省略.........

//.........这里部分代码省略.........
    // Register Type (FooType)
    FooTypeSupport_var ts = new FooTypeSupportImpl;
    if (ts->register_type(participant.in(), "") != DDS::RETCODE_OK)
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l: main()")
                        ACE_TEXT(" register_type failed!\n")), 5);

    // Create Topic (FooTopic)
    DDS::Topic_var topic =
      participant->create_topic("FooTopic",
                                ts->get_type_name(),
                                TOPIC_QOS_DEFAULT,
                                DDS::TopicListener::_nil(),
                                ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(topic.in()))
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l: main()")
                        ACE_TEXT(" create_topic failed!\n")), 6);

    // Create DataReader
    ProgressIndicator progress =
      ProgressIndicator("(%P|%t)    SUBSCRIBER %d%% (%d samples received)\n",
                        expected_samples);

    DDS::DataReaderListener_var listener =
      new DataReaderListenerImpl(received_samples, progress);

    DDS::DataReaderQos reader_qos;
    subscriber->get_default_datareader_qos(reader_qos);

    reader_qos.history.kind = DDS::KEEP_ALL_HISTORY_QOS;

    DDS::DataReader_var reader =
      subscriber->create_datareader(topic.in(),
                                    reader_qos,
                                    listener.in(),
                                    ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (CORBA::is_nil(reader.in()))
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("%N:%l: main()")
                        ACE_TEXT(" create_datareader failed!\n")), 7);

    // Block until Publisher completes
    DDS::StatusCondition_var cond = reader->get_statuscondition();
    cond->set_enabled_statuses(DDS::SUBSCRIPTION_MATCHED_STATUS);

    DDS::WaitSet_var ws = new DDS::WaitSet;
    ws->attach_condition(cond);

    DDS::Duration_t timeout =
      { DDS::DURATION_INFINITE_SEC, DDS::DURATION_INFINITE_NSEC };

    DDS::ConditionSeq conditions;
    DDS::SubscriptionMatchedStatus matches = {0, 0, 0, 0, 0};
    do
    {
      if (ws->wait(conditions, timeout) != DDS::RETCODE_OK)
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("%N:%l: main()")
                          ACE_TEXT(" wait failed!\n")), 8);

      if (reader->get_subscription_matched_status(matches) != ::DDS::RETCODE_OK)
      {
        ACE_ERROR ((LM_ERROR,
          "ERROR: failed to get subscription matched status\n"));
        return 1;
      }
    }
    while (matches.current_count > 0 || matches.total_count < n_publishers);
    ws->detach_condition(cond);

    // Clean-up!
    participant->delete_contained_entities();
    dpf->delete_participant(participant.in());

    TheTransportFactory->release();
    TheServiceParticipant->shutdown();
  }
  catch (const CORBA::Exception& e)
  {
    e._tao_print_exception("caught in main()");
    return 9;
  }

  ACE_DEBUG((LM_INFO, ACE_TEXT("(%P|%t) <- SUBSCRIBER FINISHED\n")));

  if (received_samples != expected_samples) {
    ACE_DEBUG((LM_DEBUG,
      ACE_TEXT("(%P|%t) ERROR: subscriber - ")
      ACE_TEXT("received %d of expected %d samples.\n"),
      received_samples,
      expected_samples
    ));
    return 10;
  }

  return 0;
}

void
DataReaderListenerImpl::on_data_available(DDS::DataReader_ptr reader)
{
  TestMsgDataReader_var reader_i =
    TestMsgDataReader::_narrow(reader);

  if (!reader_i) {
    ACE_ERROR((LM_ERROR,
               ACE_TEXT("ERROR: %N:%l: on_data_available() -")
               ACE_TEXT(" _narrow failed!\n")));
    ACE_OS::exit(-1);
  }

  TestMsg message;
  DDS::SampleInfo info;

  DDS::ReturnCode_t error = reader_i->take_next_sample(message, info);

  if (error == DDS::RETCODE_OK) {
    if (info.valid_data) {
      ACE_DEBUG((LM_DEBUG, "(%P|%t) DataReader %C has received message: %d from: %C\n", id_.c_str(), message.value, std::string(message.from).c_str()));

      if (!origin_) {
        TestMsgDataWriter_var message_writer =
          TestMsgDataWriter::_narrow(writer_);

        if (!message_writer) {
          ACE_ERROR((LM_ERROR,
                     ACE_TEXT("ERROR: %N:%l: on_data_available() -")
                     ACE_TEXT(" _narrow failed!\n")));
          ACE_OS::exit(-1);
        }

        // Block until Subscriber is available
        DDS::StatusCondition_var condition = writer_->get_statuscondition();
        condition->set_enabled_statuses(DDS::PUBLICATION_MATCHED_STATUS);

        DDS::WaitSet_var ws = new DDS::WaitSet;
        ws->attach_condition(condition);

        while (true) {
          DDS::PublicationMatchedStatus matches;
          if (writer_->get_publication_matched_status(matches) != ::DDS::RETCODE_OK) {
            ACE_ERROR((LM_ERROR,
                              ACE_TEXT("ERROR: %N:%l: on_data_available() -")
                              ACE_TEXT(" get_publication_matched_status failed!\n")));
            ACE_OS::exit(-1);
          }

          ACE_DEBUG((LM_DEBUG, "(%P|%t) DataWriter %C has %d of %d readers\n", writer_id_.c_str(), matches.current_count, total_readers_));
          if (matches.current_count >= total_readers_) {
            break;
          }

          DDS::ConditionSeq conditions;
          DDS::Duration_t timeout = { 60, 0 };
          if (ws->wait(conditions, timeout) != DDS::RETCODE_OK) {
            ACE_ERROR((LM_ERROR,
                       ACE_TEXT("ERROR: %N:%l: on_data_available() -")
                       ACE_TEXT(" wait failed!\n")));
            ACE_OS::exit(-1);
          }
        }

        ws->detach_condition(condition);
        std::string from_list = std::string(message.from) + "->" + writer_id_;
        message.from = from_list.c_str();
        DDS::ReturnCode_t error;
        do {
          error = message_writer->write(message, DDS::HANDLE_NIL);

          if ((error != DDS::RETCODE_OK) && (error != DDS::RETCODE_TIMEOUT)) {
            ACE_ERROR((LM_ERROR,
                       ACE_TEXT("ERROR: %N:%l: on_data_available() -")
                       ACE_TEXT(" write returned %d!\n"), error));
          }
        } while (error == DDS::RETCODE_TIMEOUT);
      }
      if (++received_samples_ == expected_samples_) {
        ACE_DEBUG((LM_DEBUG, "(%P|%t) DataReader %C has received expected number of samples\n", id_.c_str()));
        if (!origin_) {
          ACE_DEBUG((LM_DEBUG, "(%P|%t) DataWriter %C is waiting for acknowledgments\n", writer_id_.c_str()));
          DDS::Duration_t timeout = { 30, 0 };
          writer_->wait_for_acknowledgments(timeout);
        }
        done_callback_();
      }
    }

  } else {
    ACE_ERROR((LM_ERROR,
               ACE_TEXT("ERROR: %N:%l: on_data_available() -")
               ACE_TEXT(" take_next_sample failed!\n")));
  }
}

int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
  try {
    // Initialize DomainParticipantFactory
    DDS::DomainParticipantFactory_var dpf =
      TheParticipantFactoryWithArgs(argc, argv);

    // Create DomainParticipant
    DDS::DomainParticipant_var participant =
      dpf->create_participant(42,
                              PARTICIPANT_QOS_DEFAULT,
                              0,
                              OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (!participant) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" create_participant failed!\n")), -1);
    }

    // Register Type (Messenger::Message)
    Messenger::MessageTypeSupport_var ts =
      new Messenger::MessageTypeSupportImpl;

    if (ts->register_type(participant, "") != DDS::RETCODE_OK) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" register_type failed!\n")), -1);
    }

    // Create Topic (Movie Discussion List)
    CORBA::String_var type_name = ts->get_type_name();
    DDS::Topic_var topic =
      participant->create_topic("Movie Discussion List",
                                type_name,
                                TOPIC_QOS_DEFAULT,
                                0,
                                OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (!topic) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" create_topic failed!\n")), -1);
    }

    // Create Subscriber
    DDS::Subscriber_var subscriber =
      participant->create_subscriber(SUBSCRIBER_QOS_DEFAULT,
                                     0,
                                     OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (!subscriber) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" create_subscriber failed!\n")), -1);
    }

    // Create DataReader
    DDS::DataReaderListener_var listener(new DataReaderListenerImpl);

    DDS::DataReader_var reader =
      subscriber->create_datareader(topic,
                             DATAREADER_QOS_DEFAULT,
                             listener,
                             OpenDDS::DCPS::DEFAULT_STATUS_MASK);

    if (!reader) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" create_datareader failed!\n")), -1);
    }

    Messenger::MessageDataReader_var reader_i =
      Messenger::MessageDataReader::_narrow(reader);

    if (!reader_i) {
      ACE_ERROR_RETURN((LM_ERROR,
                        ACE_TEXT("ERROR: %N:%l: main() -")
                        ACE_TEXT(" _narrow failed!\n")),
                       -1);
    }

    // Block until Publisher completes
    DDS::StatusCondition_var condition = reader->get_statuscondition();
    condition->set_enabled_statuses(DDS::SUBSCRIPTION_MATCHED_STATUS);

    DDS::WaitSet_var ws = new DDS::WaitSet;
    ws->attach_condition(condition);

    while (true) {
      DDS::SubscriptionMatchedStatus matches;
      if (reader->get_subscription_matched_status(matches) != DDS::RETCODE_OK) {
        ACE_ERROR_RETURN((LM_ERROR,
                          ACE_TEXT("ERROR: %N:%l: main() -")
                          ACE_TEXT(" get_subscription_matched_status failed!\n")), -1);
      }

      if (matches.current_count == 0 && matches.total_count > 0) {
        break;
//.........这里部分代码省略.........