Exemplo n.º 1
0
DDS::DomainParticipant_var
TestBase::create_participant()
{
  DDS::DomainId_t domain = DEFAULT_DOMAIN;

  DDS::DomainParticipantQos qos;
  DDS::DomainParticipantFactory_var dpf = TheParticipantFactory;
  if (dpf->get_default_participant_qos(qos) != DDS::RETCODE_OK) {
    ACE_ERROR((LM_ERROR,
               ACE_TEXT("ERROR: %N:%l: create_participant() -")
               ACE_TEXT(" get_default_participant_qos failed!\n")));
    ACE_OS::exit(-1);
  }

  DDS::DomainParticipantListener_ptr listener =
    DDS::DomainParticipantListener::_nil();

  DDS::StatusMask status = OpenDDS::DCPS::DEFAULT_STATUS_MASK;

  if (init_participant(domain, qos, listener, status) != DDS::RETCODE_OK) {
    ACE_ERROR((LM_ERROR,
               ACE_TEXT("ERROR: %N:%l: create_participant() -")
               ACE_TEXT(" init_participant failed!\n")));
    ACE_OS::exit(-1);
  }

  DDS::DomainParticipant_var participant =
    dpf->create_participant(domain, qos, listener, status);

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

  return participant;
}
Exemplo n.º 2
0
int ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
  int result = 0;
  ACE_DEBUG ((LM_DEBUG, "(%P|%t) subscriber main\n"));
  try
    {
      DDS::DomainParticipantFactory_var dpf;
      DDS::DomainParticipant_var participant;

      dpf = TheParticipantFactoryWithArgs(argc, argv);

      if (parse_args (argc, argv) == -1) {
        return -1;
      }

      DDS::DomainParticipantQos partQos;
      dpf->get_default_participant_qos(partQos);

      // set up user data in DP qos
      CORBA::ULong part_user_data_len
        = static_cast<CORBA::ULong>(ACE_OS::strlen (PART_USER_DATA));
      partQos.user_data.value.length (part_user_data_len);
      partQos.user_data.value.replace (part_user_data_len,
                                       part_user_data_len,
                                       reinterpret_cast<CORBA::Octet*>(PART_USER_DATA));

      participant = dpf->create_participant(411,
                                            partQos,
                                            DDS::DomainParticipantListener::_nil(),
                                            ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (participant.in ())) {
        cerr << "subscriber: create_participant failed." << endl;
        return 1 ;
      }

      ::Messenger::MessageTypeSupport_var mts = new ::Messenger::MessageTypeSupportImpl();

      if (DDS::RETCODE_OK != mts->register_type(participant.in (), "Messenger")) {
          cerr << "subscriber: Failed to register the MessageTypeTypeSupport." << endl;
          exit(1);
        }

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

      DDS::TopicQos topic_qos;
      participant->get_default_topic_qos(topic_qos);

      // set up topic data in topic qos
      CORBA::ULong topic_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (TOPIC_DATA));
      topic_qos.topic_data.value.length (topic_data_len);
      topic_qos.topic_data.value.replace (topic_data_len, topic_data_len, reinterpret_cast<CORBA::Octet*>(TOPIC_DATA));

      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 << "subscriber: Failed to create_topic." << endl;
        exit(1);
      }

      // Create the subscriber

      DDS::SubscriberQos sub_qos;
      participant->get_default_subscriber_qos (sub_qos);

      // set up group data in subscriber qos
      CORBA::ULong group_data_len = static_cast<CORBA::ULong> (ACE_OS::strlen (GROUP_DATA));
      sub_qos.group_data.value.length (group_data_len);
      sub_qos.group_data.value.replace (group_data_len, group_data_len, reinterpret_cast<CORBA::Octet*>(GROUP_DATA));

      DDS::Subscriber_var sub =
        participant->create_subscriber(sub_qos,
                                       DDS::SubscriberListener::_nil(),
                                       ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (sub.in ())) {
        cerr << "subscriber: Failed to create_subscriber." << endl;
        exit(1);
      }

      // activate the listener
      DDS::DataReaderListener_var listener (new DataReaderListenerImpl);
      DataReaderListenerImpl* listener_servant =
        dynamic_cast<DataReaderListenerImpl*>(listener.in());

      DDS::Subscriber_var builtin = participant->get_builtin_subscriber();
      DDS::DataReader_var bitdr =
        builtin->lookup_datareader(OpenDDS::DCPS::BUILT_IN_PUBLICATION_TOPIC);
      listener_servant->set_builtin_datareader(bitdr.in());

      if (CORBA::is_nil (listener.in ())) {
        cerr << "subscriber: listener is nil." << endl;
        exit(1);
      }

      // Create the Datareaders
      DDS::DataReaderQos dr_qos;
      sub->get_default_datareader_qos (dr_qos);

      // set up user data in DR qos
      CORBA::ULong dr_user_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (DR_USER_DATA));
      dr_qos.user_data.value.length (dr_user_data_len);
      dr_qos.user_data.value.replace (dr_user_data_len,
                                      dr_user_data_len,
                                      reinterpret_cast<CORBA::Octet*>(DR_USER_DATA));

      DDS::DataReader_var dr = sub->create_datareader(topic.in (),
                                                      dr_qos,
                                                      listener.in (),
                                                      ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (dr.in ())) {
        cerr << "subscriber: create_datareader failed." << endl;
        exit(1);
      }

      // Wait for Monitor 1 done.
      FILE* fp = ACE_OS::fopen (synch_fname, ACE_TEXT("r"));
      int i = 0;
      while (fp == 0 &&  i < 15)
      {
        ACE_DEBUG ((LM_DEBUG,
          ACE_TEXT("(%P|%t) waiting monitor1 done ...\n")));
        ACE_OS::sleep (1);
        ++i;
        fp = ACE_OS::fopen (synch_fname, ACE_TEXT("r"));
      }
      if (fp != 0)
        ACE_OS::fclose (fp);

      // Now change the changeable qos. The second monitor should get the updated qos from BIT.
      part_user_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (UPDATED_PART_USER_DATA));
      partQos.user_data.value.length (part_user_data_len);
      partQos.user_data.value.replace (part_user_data_len,
                                       part_user_data_len,
                                       reinterpret_cast<CORBA::Octet*>(UPDATED_PART_USER_DATA));
      participant->set_qos (partQos);

      dr_user_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (UPDATED_DR_USER_DATA));
      dr_qos.user_data.value.length (dr_user_data_len);
      dr_qos.user_data.value.replace (dr_user_data_len,
                                      dr_user_data_len,
                                      reinterpret_cast<CORBA::Octet*>(UPDATED_DR_USER_DATA));
      dr->set_qos (dr_qos);

      group_data_len = static_cast<CORBA::ULong> (ACE_OS::strlen (UPDATED_GROUP_DATA));
      sub_qos.group_data.value.length (group_data_len);
      sub_qos.group_data.value.replace (group_data_len,
                                        group_data_len,
                                        reinterpret_cast<CORBA::Octet*>(UPDATED_GROUP_DATA));
      sub->set_qos (sub_qos);

      topic_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (UPDATED_TOPIC_DATA));
      topic_qos.topic_data.value.length (topic_data_len);
      topic_qos.topic_data.value.replace (topic_data_len,
                                          topic_data_len,
                                          reinterpret_cast<CORBA::Octet*>(UPDATED_TOPIC_DATA));
      topic->set_qos (topic_qos);

      while ( listener_servant->num_reads() < num_messages) {
        ACE_OS::sleep (1);
      }

      if (listener_servant->builtin_read_errors()) {
        cerr << "subscriber: Built in topic read failure." << endl;
        result = 1;
      }

      if (!CORBA::is_nil (participant.in ())) {
        participant->delete_contained_entities();
      }
      if (!CORBA::is_nil (dpf.in ())) {
        dpf->delete_participant(participant.in ());
      }

      TheServiceParticipant->shutdown ();
    }
  catch (CORBA::Exception& e)
    {
      cerr << "subscriber: SUB: Exception caught in main ():" << endl << e << endl;
      return 1;
    }

  return result;
}
Exemplo n.º 3
0
void KVStore::init() {

   DDS::DomainId_t myDomain = NULL;
   DDS::DomainParticipantFactory_var dpf;
   DDS::DomainParticipant_var dp;
   DDS::Subscriber_var subscriber;
   DDS::Publisher_var publisher;

   DDS::DomainParticipantQos dpQos;
   DDS::TopicQos tQos;

   DDS::SubscriberQos sQos;
   DDS::DataReaderQos drQos;
   DDS::PublisherQos pQos;
   DDS::DataWriterQos dwQos;
   DDS::Topic_var topic;

   DDSKVStore::TransactionTypeSupport_var ts;

   // Create Participants
   dpf = DDS::DomainParticipantFactory::get_instance();
   dpf->get_default_participant_qos(dpQos);
   dp = dpf->create_participant(myDomain, dpQos, NULL, DDS::STATUS_MASK_NONE);

   // Create Subscriber
   dp->get_default_subscriber_qos(sQos);
   sQos.partition.name.length(1);
   sQos.partition.name[0] = partition.c_str();
   subscriber = dp->create_subscriber(sQos, NULL, DDS::STATUS_MASK_NONE);

   // Create Publisher
   dp->get_default_publisher_qos(pQos);
   pQos.partition.name.length(1);
   pQos.partition.name[0] = partition.c_str();
   publisher = dp->create_publisher(pQos, NULL, DDS::STATUS_MASK_NONE);

   // Set DataReader QoS settings
   subscriber->get_default_datareader_qos(drQos);
   drQos.reliability.kind = DDS::RELIABLE_RELIABILITY_QOS;
   drQos.history.kind = DDS::KEEP_LAST_HISTORY_QOS;
   drQos.history.depth = 30;

   // Set DataWriter QoS settings
   publisher->get_default_datawriter_qos(dwQos);
   dwQos.reliability.kind = DDS::RELIABLE_RELIABILITY_QOS;
   dwQos.history.kind = DDS::KEEP_LAST_HISTORY_QOS;
   dwQos.history.depth = 30;

   // Set Topic Qos settings
   dp->get_default_topic_qos(tQos);
   tQos.reliability.kind = DDS::RELIABLE_RELIABILITY_QOS;
   tQos.history.kind = DDS::KEEP_LAST_HISTORY_QOS;
   tQos.history.depth = 30;

   // Create Topic
   ts = new DDSKVStore::TransactionTypeSupport();
   ts->register_type(dp, "DDSKVStore::Transaction");

   topic = dp->create_topic("Transaction", "DDSKVStore::Transaction", tQos,
         NULL, DDS::STATUS_MASK_NONE);

   // Create Datareader
   dataReader = subscriber->create_datareader(topic, drQos, NULL,
         DDS::STATUS_MASK_NONE);
   transactionDataReader = DDSKVStore::TransactionDataReader::_narrow(
         dataReader);

   if (dataReader == NULL)
      std::cout << "ERROR: DDS Connection failed" << std::endl;

   // Create Datawriter
   transactionDataWriter = DDSKVStore::TransactionDataWriter::_narrow(
         publisher->create_datawriter(topic, dwQos, NULL,
               DDS::STATUS_MASK_NONE));
   if (transactionDataWriter == NULL)
      std::cout << "ERROR: DDS Connection failed" << std::endl;

   // Create Readcondition
   readCondition = dataReader->create_readcondition(DDS::ANY_SAMPLE_STATE,
         DDS::ANY_VIEW_STATE, DDS::ALIVE_INSTANCE_STATE);

}
Exemplo n.º 4
0
int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
  try {
    // Initialize DomainParticipantFactory
    DDS::DomainParticipantFactory_var dpf =
      TheParticipantFactoryWithArgs(argc, argv);

    enum {
      READER,
      WRITER
    } mode = READER;
    bool toggle = false;

    {
      // New scope.
      ACE_Arg_Shifter shifter (argc, argv);
      while (shifter.is_anything_left ()) {
        const ACE_TCHAR* x = shifter.get_current();
        if (ACE_OS::strcmp(x, ACE_TEXT("-reader")) == 0) {
          mode = READER;
        }
        if (ACE_OS::strcmp(x, ACE_TEXT("-writer")) == 0) {
          mode = WRITER;
        }
        if (ACE_OS::strcmp(x, ACE_TEXT("-toggle")) == 0) {
          toggle = true;
        }
        shifter.consume_arg ();
      }
    }

    // Create DomainParticipant
    DDS::DomainParticipantQos dp_qos;
    dpf->get_default_participant_qos(dp_qos);
    dp_qos.user_data.value.length(6);
    dp_qos.user_data.value[0] = 0;
    dp_qos.user_data.value[1] = 0;
    dp_qos.user_data.value[2] = 0;
    dp_qos.user_data.value[3] = 0;
    dp_qos.user_data.value[4] = 0;
    dp_qos.user_data.value[5] = (mode == READER) ? 0 : 1;

    DDS::DomainParticipant_var participant =
      dpf->create_participant(DOMAIN_ID,
                              dp_qos,
                              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 TypeSupport
    TestMsgTypeSupport_var ts =
      new TestMsgTypeSupportImpl;

    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
    CORBA::String_var type_name = ts->get_type_name();
    DDS::Topic_var topic =
      participant->create_topic("TheTopic",
                                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);
    }

    int return_code = 1;
    switch (mode) {
    case READER:
      return_code = do_reader(participant, topic, toggle);
      break;
    case WRITER:
      return_code = do_writer(participant, topic, toggle);
      break;
    }

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

    TheServiceParticipant->shutdown();
    return return_code;

  } catch (const CORBA::Exception& e) {
    e._tao_print_exception("Exception caught in main():");
    return -1;
  }

  return 0;
}
Exemplo n.º 5
0
int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
  try {
    // Initialize DomainParticipantFactory
    DDS::DomainParticipantFactory_var dpf =
      TheParticipantFactoryWithArgs(argc, argv);

    std::string participant_id;
    std::vector<std::string> readers;
    std::vector<std::string> writers;
    bool reliable = false;
    int total_readers = 0, total_writers = 0;

    {
      // New scope.
      ACE_Arg_Shifter shifter (argc, argv);
      while (shifter.is_anything_left ()) {
        const ACE_TCHAR* x;
        x = shifter.get_the_parameter (ACE_TEXT("-participant"));
        if (x != NULL) {
          participant_id = ACE_TEXT_ALWAYS_CHAR(x);
        }
        x = shifter.get_the_parameter (ACE_TEXT("-reader"));
        if (x != NULL) {
          readers.push_back(ACE_TEXT_ALWAYS_CHAR(x));
        }
        x = shifter.get_the_parameter (ACE_TEXT("-writer"));
        if (x != NULL) {
          writers.push_back(ACE_TEXT_ALWAYS_CHAR(x));
        }
        x = shifter.get_the_parameter (ACE_TEXT("-reliable"));
        if (x != NULL) {
          reliable = ACE_OS::atoi(x);
        }
        x = shifter.get_the_parameter (ACE_TEXT("-total_readers"));
        if (x != NULL) {
          total_readers = ACE_OS::atoi(x);
        }
        x = shifter.get_the_parameter (ACE_TEXT("-total_writers"));
        if (x != NULL) {
          total_writers = ACE_OS::atoi(x);
        }

        shifter.consume_arg ();
      }
    }

    participant_id.resize(12);

    // Create DomainParticipant
    DDS::DomainParticipantQos dp_qos;
    dpf->get_default_participant_qos(dp_qos);
    dp_qos.user_data.value.length(6);
    dp_qos.user_data.value[0] = fromhex(participant_id, 0);
    dp_qos.user_data.value[1] = fromhex(participant_id, 1);
    dp_qos.user_data.value[2] = fromhex(participant_id, 2);
    dp_qos.user_data.value[3] = fromhex(participant_id, 3);
    dp_qos.user_data.value[4] = fromhex(participant_id, 4);
    dp_qos.user_data.value[5] = fromhex(participant_id, 5);

    DDS::DomainParticipant_var participant =
      dpf->create_participant(DOMAIN_ID,
                              dp_qos,
                              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 TypeSupport
    TestMsgTypeSupport_var ts =
      new TestMsgTypeSupportImpl;

    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
    CORBA::String_var type_name = ts->get_type_name();
    DDS::Topic_var topic =
      participant->create_topic("TheTopic",
                                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);
    }

    const int n_msgs = reliable ? MSGS_PER_WRITER * total_writers : 0;

    // Create DataReaders
    for (std::vector<std::string>::iterator pos = readers.begin(), limit = readers.end();
         pos != limit;
         ++pos) {
      pos->resize(6);
      DDS::DataReaderListener_var listener(new DataReaderListenerImpl(*pos, n_msgs, reader_done_callback));

      DDS::DataReaderQos qos;
      subscriber->get_default_datareader_qos(qos);
      qos.user_data.value.length(3);
      qos.user_data.value[0] = fromhex(*pos, 0);
      qos.user_data.value[1] = fromhex(*pos, 1);
      qos.user_data.value[2] = fromhex(*pos, 2);
      qos.reliability.kind = reliable ? DDS::RELIABLE_RELIABILITY_QOS : DDS::BEST_EFFORT_RELIABILITY_QOS;

      DDS::DataReader_var reader =
        subscriber->create_datareader(topic,
                                      qos,
                                      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);
      }

      TestMsgDataReader_var reader_i =
        TestMsgDataReader::_narrow(reader);

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

    WriterTask task(writers, participant, topic, reliable, total_readers);
    task.activate(DEFAULT_FLAGS, writers.size());
    task.wait();

    if (!reliable)
      ACE_OS::sleep(10);
    else {
      ACE_Guard<ACE_Thread_Mutex> g(readers_done_lock);
      while (readers_done != static_cast<int>(readers.size()))
        readers_done_cond.wait();
      // Sleep allows an ACKNACK to be generated.
      ACE_OS::sleep(3);
    }

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

    TheServiceParticipant->shutdown();

  } catch (const CORBA::Exception& e) {
    e._tao_print_exception("Exception caught in main():");
    return -1;
  }

  return 0;
}
Exemplo n.º 6
0
int ACE_TMAIN(int argc, ACE_TCHAR *argv[]) {
  try
    {
      ACE_DEBUG ((LM_DEBUG, "(%P|%t) publisher main\n"));

      DDS::DomainParticipantFactory_var dpf =
        TheParticipantFactoryWithArgs(argc, argv);

      if (parse_args (argc, argv) == -1) {
        return -1;
      }

      DDS::DomainParticipantQos partQos;
      dpf->get_default_participant_qos(partQos);

      // set up user data in DP qos
      CORBA::ULong part_user_data_len
        = static_cast<CORBA::ULong>(ACE_OS::strlen (PART_USER_DATA));
      partQos.user_data.value.length (part_user_data_len);
      partQos.user_data.value.replace (part_user_data_len,
                                       part_user_data_len,
                                       reinterpret_cast<CORBA::Octet*>(PART_USER_DATA));

      DDS::DomainParticipant_var participant =
        dpf->create_participant(411,
                                partQos,
                                DDS::DomainParticipantListener::_nil(),
                                ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (participant.in ())) {
        cerr << "publisher: create_participant failed." << endl;
        return 1;
      }

      ::Messenger::MessageTypeSupport_var ts = new ::Messenger::MessageTypeSupportImpl();

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

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

      DDS::TopicQos topic_qos;
      participant->get_default_topic_qos(topic_qos);

      // set up topic data in topic qos
      CORBA::ULong topic_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (TOPIC_DATA));
      topic_qos.topic_data.value.length (topic_data_len);
      topic_qos.topic_data.value.replace (topic_data_len, topic_data_len, reinterpret_cast<CORBA::Octet*>(TOPIC_DATA));

      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 << "publisher: create_topic failed." << endl;
        exit(1);
      }

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

      // set up group data in group qos
      CORBA::ULong group_data_len = static_cast<CORBA::ULong> (ACE_OS::strlen (GROUP_DATA));
      pub_qos.group_data.value.length (group_data_len);
      pub_qos.group_data.value.replace (group_data_len, group_data_len, reinterpret_cast<CORBA::Octet*>(GROUP_DATA));

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

      // Create the datawriter
      DDS::DataWriterQos dw_qos;
      pub->get_default_datawriter_qos (dw_qos);
      dw_qos.durability.kind = DDS::TRANSIENT_LOCAL_DURABILITY_QOS;
      dw_qos.reliability.kind  = ::DDS::RELIABLE_RELIABILITY_QOS;
      dw_qos.resource_limits.max_samples_per_instance = 1000;
      dw_qos.history.kind  = ::DDS::KEEP_ALL_HISTORY_QOS;

      // set up user data in DW qos
      CORBA::ULong dw_user_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (DW_USER_DATA));
      dw_qos.user_data.value.length (dw_user_data_len);
      dw_qos.user_data.value.replace (dw_user_data_len,
                                      dw_user_data_len,
                                      reinterpret_cast<CORBA::Octet*>(DW_USER_DATA));

      DDS::DataWriter_var dw =
        pub->create_datawriter(topic.in (),
                               dw_qos,
                               DDS::DataWriterListener::_nil(),
                               ::OpenDDS::DCPS::DEFAULT_STATUS_MASK);
      if (CORBA::is_nil (dw.in ())) {
        cerr << "publisher: create_datawriter failed." << endl;
        exit(1);
      }

      // wait for Monitor 1 done
      FILE* fp = ACE_OS::fopen (synch_fname, ACE_TEXT("r"));
      int i = 0;
      while (fp == 0 &&  i < 15)
      {
        ACE_DEBUG ((LM_DEBUG,
          ACE_TEXT("(%P|%t) waiting monitor1 done ...\n")));
        ACE_OS::sleep (1);
        ++ i;
        fp = ACE_OS::fopen (synch_fname, ACE_TEXT("r"));
      }

      if (fp != 0)
        ACE_OS::fclose (fp);

      // Now change the changeable qos. The second monitor should get the updated qos from BIT.

      part_user_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (UPDATED_PART_USER_DATA));
      partQos.user_data.value.length (part_user_data_len);
      partQos.user_data.value.replace (part_user_data_len,
                                       part_user_data_len,
                                       reinterpret_cast<CORBA::Octet*>(UPDATED_PART_USER_DATA));
      participant->set_qos (partQos);

      dw_user_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (UPDATED_DW_USER_DATA));
      dw_qos.user_data.value.length (dw_user_data_len);
      dw_qos.user_data.value.replace (dw_user_data_len,
                                      dw_user_data_len,
                                      reinterpret_cast<CORBA::Octet*>(UPDATED_DW_USER_DATA));
      dw->set_qos (dw_qos);

      group_data_len = static_cast<CORBA::ULong> (ACE_OS::strlen (UPDATED_GROUP_DATA));
      pub_qos.group_data.value.length (group_data_len);
      pub_qos.group_data.value.replace (group_data_len,
                                        group_data_len,
                                        reinterpret_cast<CORBA::Octet*>(UPDATED_GROUP_DATA));
      pub->set_qos (pub_qos);

      topic_data_len = static_cast<CORBA::ULong>(ACE_OS::strlen (UPDATED_TOPIC_DATA));
      topic_qos.topic_data.value.length (topic_data_len);
      topic_qos.topic_data.value.replace (topic_data_len,
                                          topic_data_len,
                                          reinterpret_cast<CORBA::Octet*>(UPDATED_TOPIC_DATA));
      topic->set_qos (topic_qos);

      Writer* writer = new Writer(dw.in());

      writer->start ();
      while ( !writer->is_finished()) {
        ACE_Time_Value small_time(0,250000);
        ACE_OS::sleep (small_time);
      }

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

  return 0;
}