C++ DataWriter_var::get_matched_subscriptions方法代码示例

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

      DDS::DomainParticipant_var participant =
        dpf->create_participant(311,
                                PARTICIPANT_QOS_DEFAULT,
                                DDS::DomainParticipantListener::_nil(),
                                ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (participant.in ())) {
        cerr << "create_participant failed." << endl;
        return 1;
      }

      MessageTypeSupportImpl* servant = new MessageTypeSupportImpl();

      if (DDS::RETCODE_OK != servant->register_type(participant.in (), "")) {
        cerr << "register_type failed." << endl;
        exit(1);
      }

      CORBA::String_var type_name = servant->get_type_name ();

      DDS::TopicQos topic_qos;
      participant->get_default_topic_qos(topic_qos);
      DDS::Topic_var topic =
        participant->create_topic ("Movie Discussion List",
                                   type_name.in (),
                                   topic_qos,
                                   DDS::TopicListener::_nil(),
                                   ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (topic.in ())) {
        cerr << "create_topic failed." << endl;
        exit(1);
      }

      DDS::PublisherQos pub_qos;
      participant->get_default_publisher_qos (pub_qos);

      pub_qos.partition.name.length (1);
      pub_qos.partition.name[0] = PARTITION_A;

      DDS::Publisher_var pub =
        participant->create_publisher(pub_qos, DDS::PublisherListener::_nil(),
                                      ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (pub.in ())) {
        cerr << "create_publisher failed." << endl;
        exit(1);
      }

      // ----------------------------------------------
      // Create DataWriter which is belongs to PARTITION_A
      DDS::DataWriter_var dw =
        pub->create_datawriter (topic.in (),
                                DATAWRITER_QOS_DEFAULT,
                                DDS::DataWriterListener::_nil (),
                                ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);

      int const max_attempts = 15;
      int attempts = 1;

      // ----------------------------------------------
      // Wait for first DataReader that belongs to PARTITION_A too,
      // then write samples.

      // cache handle for first reader.
      ::DDS::InstanceHandle_t handle = -1;
      {
        std::auto_ptr<Writer> writer (new Writer (dw.in ()));

        cout << "Pub waiting for match on A partition." << std::endl;
        if (OpenDDS::Model::WriterSync::wait_match(dw)) {
          cerr << "Error waiting for match on A partition" << std::endl;
          return 1;
        }
        while (attempts != max_attempts)
        {

          ::DDS::InstanceHandleSeq handles;
          dw->get_matched_subscriptions(handles);
          cout << "Pub matched " << handles.length() << " A subs." << std::endl;
          if (handles.length() == 1)
          {
            handle = handles[0];
            break;
          }
          else
            ACE_OS::sleep(1);
          ++attempts;
        }

        if (attempts == max_attempts)
        {
          cerr << "ERROR: failed to wait for first DataReader." << endl;
          exit (1);
        }

        writer->start ();
//.........这里部分代码省略.........

//.........这里部分代码省略.........

        if (deadline_status.total_count_change != NUM_EXPIRATIONS * NUM_WRITE_THREADS)
        {
          cerr << "ERROR: Incorrect missed offered "
            << "deadline count change ("
            << deadline_status.total_count_change
            << ") instead of " << NUM_EXPIRATIONS * NUM_WRITE_THREADS
            << endl;

          exit (1);
        }

        if (deadline_status.last_instance_handle != handle1
          && deadline_status.last_instance_handle != handle2)
        {
          cerr << "ERROR: Unexpected last instance handle "
            << deadline_status.last_instance_handle << " instead of "
            << handle1 << " or "
            << handle2 << endl;
          exit (1);
        }

        writer1->wait ();
        writer2->wait ();

        ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) Publisher: sleep for %d milliseconds\n"),
                              SLEEP_DURATION.msec()));

        // Wait for another set of deadline periods to expire.
        ACE_OS::sleep (SLEEP_DURATION);

        ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) Publisher: now verify missed ")
                            ACE_TEXT ("deadline status \n")));

        if (dw->get_offered_deadline_missed_status(deadline_status) != ::DDS::RETCODE_OK)
        {
           cerr << "ERROR: Failed to get offered deadline missed status" << endl;
           exit (1);
        }

        ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) Publisher: got missed")
                              ACE_TEXT ("deadline status \n")));

        if (deadline_status.total_count != (NUM_EXPIRATIONS + 2) * NUM_WRITE_THREADS)
        {
          cerr << "ERROR: Unexpected number of missed offered "
            << "deadlines (" << deadline_status.total_count
            << " instead of " << (NUM_EXPIRATIONS + 2) * NUM_WRITE_THREADS << ") "
            << endl;

          exit (1);
        }

        if (deadline_status.total_count_change != NUM_WRITE_THREADS * 2)
        {
          cerr << "ERROR: Incorrect missed offered "
            << "deadline count change ("
            << deadline_status.total_count_change
            << ") instead of " << NUM_WRITE_THREADS * 2
            << endl;

          exit (1);
        }

        if (deadline_status.last_instance_handle != handle1
          && deadline_status.last_instance_handle != handle2)
        {
          cerr << "ERROR: Unexpected last instance handle "
            << deadline_status.last_instance_handle << " instead of "
            << handle1 << " or "
            << handle2 << endl;
          exit (1);
        }


        // Wait for datareader finish.
        while (1)
        {
          ::DDS::InstanceHandleSeq handles;
          dw->get_matched_subscriptions (handles);
          if (handles.length () == 0)
            break;
          else
            ACE_OS::sleep(1);
        }
      }

      participant->delete_contained_entities();
      dpf->delete_participant(participant.in ());
      TheServiceParticipant->shutdown ();
  }
  catch (CORBA::Exception& e)
  {
    cerr << "PUB: Exception caught in main.cpp:" << endl
         << e << endl;
    exit(1);
  }

  return 0;
}

//.........这里部分代码省略.........
            exit (1);
          }

          // Explicitly destroy the DataWriter.
          if (pub->delete_datawriter (dw.in ())
              == ::DDS::RETCODE_PRECONDITION_NOT_MET)
          {
            cerr << "Unable to delete DataWriter" << endl;
            exit (1);
          }
        }
        else
        {
          int const max_attempts = 50;
          int attempts;
          for (attempts = 1;
               attempts != max_attempts
                 && listener->publication_matched_.value () == false;
               ++attempts)
          {
            ACE_OS::sleep (5);
          }

          if (attempts == max_attempts)
          {
            cerr << "ERROR: subscriptions failed to match." << endl;
            exit (1);
          }

          // Wait for DataReader to finish.
          ::DDS::InstanceHandleSeq handles;
          for (attempts = 1; attempts != max_attempts; ++attempts)
          {
            dw->get_matched_subscriptions (handles);
            if (handles.length () == 0)
              break;
            else
              ACE_OS::sleep(1);
          }

          // The data durability cache should no longer contain samples
          // for this domain/topic/type.
        }
      }

      // -------------------------------------------------------

      {
        // Write samples that will not be sent.  Exercise
        // service_cleanup_delay.  We can either do this through the
        // durability member or durability_service member in either of
        // TopicQos or DataWriterQos.  This test arbitrarily uses the
        // DataWriterQos::durability_service member.

        // Cleanup data after this number of seconds.
        CORBA::Long const delay_seconds = 5;

        ::DDS::Duration_t & cleanup_delay =
          dw_qos.durability_service.service_cleanup_delay;
        cleanup_delay.sec     = delay_seconds;
        cleanup_delay.nanosec = 0;

        // Create a dummy topic which will have no subscriptions.
        DDS::Topic_var dummy_topic =
          participant->create_topic ("Dummy Topic",
                                     type_name.in (),

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

      DDS::DomainParticipant_var participant =
        dpf->create_participant(11,
                                PARTICIPANT_QOS_DEFAULT,
                                DDS::DomainParticipantListener::_nil(),
                                ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (participant.in ())) {
        ACE_DEBUG((LM_DEBUG, "create_participant failed.\n"));
        return 1;
      }

      MessageTypeSupportImpl* servant = new MessageTypeSupportImpl();

      if (DDS::RETCODE_OK != servant->register_type(participant.in (), "")) {
        ACE_DEBUG((LM_DEBUG, "register_type failed.\n"));
        exit(1);
      }

      CORBA::String_var type_name = servant->get_type_name ();

      DDS::TopicQos topic_qos;
      participant->get_default_topic_qos(topic_qos);
      DDS::Topic_var topic =
        participant->create_topic ("Movie Discussion List",
                                   type_name.in (),
                                   topic_qos,
                                   DDS::TopicListener::_nil(),
                                   ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (topic.in ())) {
        ACE_DEBUG((LM_DEBUG, "create_topic failed.\n"));
        exit(1);
      }

      DDS::Publisher_var pub =
        participant->create_publisher(PUBLISHER_QOS_DEFAULT,
        DDS::PublisherListener::_nil(),
        ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (pub.in ())) {
        ACE_DEBUG((LM_DEBUG, "create_publisher failed.\n"));
        exit(1);
      }

      DDS::DataWriterQos dw_qos;
      pub->get_default_datawriter_qos (dw_qos);

      dw_qos.deadline.period.sec     = 4;
      dw_qos.deadline.period.nanosec = 0;

      // Create DataWriter with 4 second deadline period which
      // should be compatible with first DataReader which has 5
      // seconds deadline period and not with second DataReader
      // which has 3 seconds deadline period.
      DDS::DataWriter_var dw =
        pub->create_datawriter(topic, dw_qos, 0,
                               OpenDDS::DCPS::DEFAULT_STATUS_MASK);

      int const max_attempts = 20000;
      int attempts = 1;
      {
        // Wait for both first DataReader connect and write messages.
        std::auto_ptr<Writer> writer (new Writer (dw.in ()));

        while (attempts != max_attempts)
        {
          ::DDS::InstanceHandleSeq handles;
          dw->get_matched_subscriptions(handles);
          if (handles.length() == 1)
            break;
          else
            ACE_OS::sleep(1);
          ++attempts;
        }

        if (attempts == max_attempts)
        {
          ACE_DEBUG((LM_DEBUG, "ERROR: subscriptions failed to match.\n"));
          exit (1);
        }

        writer->start ();
        writer->end ();

        ACE_DEBUG((LM_DEBUG, "Writer changing deadline to incompatible value\n"));

        // Now set DataWriter deadline to be 6 seconds which is not
        // compatible with the existing DataReader. This QoS change
        // should be applied and the association broken.
        dw_qos.deadline.period.sec = 6;

        if (dw->set_qos (dw_qos) != ::DDS::RETCODE_OK) {
          ACE_DEBUG((LM_DEBUG,
            "ERROR: DataWriter could not change deadline period which "
             "should break DataReader associations\n"));
          exit (1);
        } else {
//.........这里部分代码省略.........