C++ DomainParticipant_var::get_default_topic_qos方法代码示例

DataReader_var create_data_reader(const DomainParticipant_var& dp)
{
  TypeSupport_var ts = new TestMsgTypeSupportImpl;

  if (ts->register_type(dp, "") != RETCODE_OK) {
    ACE_DEBUG((LM_ERROR, "ERROR: %P failed to register type support\n"));
    return 0;
  }

  TopicQos topic_qos;
  dp->get_default_topic_qos(topic_qos);
  set_qos(topic_qos.topic_data.value, TestConfig::TOPIC_DATA());
  CORBA::String_var type_name = ts->get_type_name();
  Topic_var topic = dp->create_topic("Movie Discussion List",
                                     type_name,
                                     topic_qos,
                                     0,
                                     DEFAULT_STATUS_MASK);

  if (!topic) {
    ACE_DEBUG((LM_ERROR, "ERROR: %P failed to create topic\n"));
    return 0;
  }

  Subscriber_var sub = dp->create_subscriber(SUBSCRIBER_QOS_DEFAULT,
                                             0,
                                             DEFAULT_STATUS_MASK);

  if (!sub) {
    ACE_DEBUG((LM_ERROR, "ERROR: %P failed to create subscriber\n"));
    return 0;
  }

  DataReaderQos dr_qos;
  sub->get_default_datareader_qos(dr_qos);
  dr_qos.reliability.kind = RELIABLE_RELIABILITY_QOS;
  set_qos(dr_qos.user_data.value, TestConfig::DATA_READER_USER_DATA());

  DataReader_var dr = sub->create_datareader(topic,
                                             dr_qos,
                                             0,
                                             DEFAULT_STATUS_MASK);

  if (!dr) {
    ACE_DEBUG((LM_ERROR, "ERROR: %P failed to create data reader\n"));
    return 0;
  }
  return dr;
}

DataWriter_var create_data_writer(const DomainParticipant_var& dp2)
{
  TypeSupport_var ts = new TestMsgTypeSupportImpl;

  if (ts->register_type(dp2, "") != RETCODE_OK) {
    ACE_DEBUG((LM_ERROR, "ERROR: %P failed to register type support\n"));
    return 0;
  }

  TopicQos topic_qos;
  dp2->get_default_topic_qos(topic_qos);
  set_qos(topic_qos.topic_data.value, TestConfig::TOPIC_DATA());
  CORBA::String_var type_name = ts->get_type_name();
  Topic_var topic = dp2->create_topic("Movie Discussion List",
                                      type_name,
                                      topic_qos,
                                      0,
                                      DEFAULT_STATUS_MASK);

  if (!topic) {
    ACE_DEBUG((LM_ERROR, "ERROR: %P failed to create topic\n"));
    return 0;
  }

  Publisher_var pub = dp2->create_publisher(PUBLISHER_QOS_DEFAULT,
                                            0,
                                            DEFAULT_STATUS_MASK);

  if (!pub) {
    ACE_DEBUG((LM_ERROR, "ERROR: %P failed to create publisher\n"));
    return 0;
  }

  DataWriterQos dw_qos;
  pub->get_default_datawriter_qos(dw_qos);
  set_qos(dw_qos.user_data.value, TestConfig::DATA_WRITER_USER_DATA());

  DataWriter_var dw = pub->create_datawriter(topic,
                                             dw_qos,
                                             0,
                                             DEFAULT_STATUS_MASK);

  if (!dw) {
    ACE_DEBUG((LM_ERROR, "ERROR: %P failed to create data writer\n"));
    return 0;
  }
  return dw;
}

int
main (
    int ,
    char *[])
{
    /* Generic DDS entities */
    DomainParticipant_var           participant;
    Topic_var                       chatMessageTopic;
    Topic_var                       nameServiceTopic;
    Subscriber_var                  chatSubscriber;
    DataReader_ptr                  parentReader;
    QueryCondition_var              singleUser;
    ReadCondition_var               newUser;
    StatusCondition_var             leftUser;
    WaitSet_var                     userLoadWS;
    LivelinessChangedStatus         livChangStatus;

    /* QosPolicy holders */
    TopicQos                        setting_topic_qos;
    TopicQos                        reliable_topic_qos;
    SubscriberQos                   sub_qos;
    DataReaderQos                   message_qos;

    /* DDS Identifiers */
    DomainId_t                      domain = NULL;
    ReturnCode_t                    status;
    ConditionSeq                    guardList;

    /* Type-specific DDS entities */
    ChatMessageTypeSupport_var      chatMessageTS;
    NameServiceTypeSupport_var      nameServiceTS;
    NameServiceDataReader_var       nameServer;
    ChatMessageDataReader_var       loadAdmin;
    ChatMessageSeq                  msgList;
    NameServiceSeq                  nsList;
    SampleInfoSeq                   infoSeq;
    SampleInfoSeq                   infoSeq2;

    /* Others */
    StringSeq                       args;
    char *                          chatMessageTypeName = NULL;
    char *                          nameServiceTypeName = NULL;

    bool                            closed = false;
    CORBA::Long                     prevCount = 0;
    DWORD                           tid;
    HANDLE                          tHandle = INVALID_HANDLE_VALUE;

    /* Create a DomainParticipant (using the 'TheParticipantFactory' convenience macro). */
    participant = TheParticipantFactory->create_participant (
        domain,
        PARTICIPANT_QOS_DEFAULT,
        NULL,
        STATUS_MASK_NONE);
    checkHandle(participant.in(), "DDS::DomainParticipantFactory::create_participant");

    /* Register the required datatype for ChatMessage. */
    chatMessageTS = new ChatMessageTypeSupport();
    checkHandle(chatMessageTS.in(), "new ChatMessageTypeSupport");
    chatMessageTypeName = chatMessageTS->get_type_name();
    status = chatMessageTS->register_type(participant.in(), chatMessageTypeName);
    checkStatus(status, "Chat::ChatMessageTypeSupport::register_type");

    /* Register the required datatype for NameService. */
    nameServiceTS = new NameServiceTypeSupport();
    checkHandle(nameServiceTS.in(), "new NameServiceTypeSupport");
    nameServiceTypeName =  nameServiceTS->get_type_name();
    status = nameServiceTS->register_type(participant.in(), nameServiceTypeName);
    checkStatus(status, "Chat::NameServiceTypeSupport::register_type");

    /* Set the ReliabilityQosPolicy to RELIABLE. */
    status = participant->get_default_topic_qos(reliable_topic_qos);
    checkStatus(status, "DDS::DomainParticipant::get_default_topic_qos");
    reliable_topic_qos.reliability.kind = RELIABLE_RELIABILITY_QOS;

    /* Make the tailored QoS the new default. */
    status = participant->set_default_topic_qos(reliable_topic_qos);
    checkStatus(status, "DDS::DomainParticipant::set_default_topic_qos");

    /* Use the changed policy when defining the ChatMessage topic */
    chatMessageTopic = participant->create_topic(
        "Chat_ChatMessage",
        chatMessageTypeName,
        reliable_topic_qos,
        NULL,
        STATUS_MASK_NONE);
    checkHandle(chatMessageTopic.in(), "DDS::DomainParticipant::create_topic (ChatMessage)");

    /* Set the DurabilityQosPolicy to TRANSIENT. */
    status = participant->get_default_topic_qos(setting_topic_qos);
    checkStatus(status, "DDS::DomainParticipant::get_default_topic_qos");
    setting_topic_qos.durability.kind = TRANSIENT_DURABILITY_QOS;

    /* Create the NameService Topic. */
    nameServiceTopic = participant->create_topic(
        "Chat_NameService",
        nameServiceTypeName,
        setting_topic_qos,
        NULL,
        STATUS_MASK_NONE);
//.........这里部分代码省略.........

int
OSPL_MAIN (
    int argc,
    char *argv[])
{
    /* Generic DDS entities */
    DomainParticipantFactory_var    dpf;
    DomainParticipant_var           participant;
    Topic_var                       chatMessageTopic;
    Subscriber_var                  chatSubscriber;
    DataReader_ptr                  parentReader;

    /* Type-specific DDS entities */
    ChatMessageTypeSupport_var      chatMessageTS;
    ChatMessageDataReader_var       chatAdmin;
    ChatMessageSeq_var              msgSeq = new ChatMessageSeq();
    SampleInfoSeq_var               infoSeq = new SampleInfoSeq();

    /* QosPolicy holders */
    TopicQos                        reliable_topic_qos;
    SubscriberQos                   sub_qos;
    DDS::StringSeq                  parameterList;

    /* DDS Identifiers */
    DomainId_t                      domain = 0;
    ReturnCode_t                    status;

    /* Others */
    bool                            terminated = false;
    const char *                    partitionName = "ChatRoom1";
    char  *                         chatMessageTypeName = NULL;

    /* Options: MessageBoard [ownID] */
    /* Messages having owner ownID will be ignored */
    parameterList.length(1);

    if (argc > 1) {
        parameterList[0] = string_dup(argv[1]);
    }
    else
    {
        parameterList[0] = "0";
    }

    /* Create a DomainParticipantFactory and a DomainParticipant (using Default QoS settings. */
    dpf = DomainParticipantFactory::get_instance();
    checkHandle(dpf.in(), "DDS::DomainParticipantFactory::get_instance");
    participant = dpf->create_participant (
        domain,
        PARTICIPANT_QOS_DEFAULT,
        NULL,
        STATUS_MASK_NONE);
    checkHandle(participant, "DDS::DomainParticipantFactory::create_participant");

    /* Register the required datatype for ChatMessage. */
    chatMessageTS = new ChatMessageTypeSupport();
    checkHandle(chatMessageTS.in(), "new ChatMessageTypeSupport");
    chatMessageTypeName = chatMessageTS->get_type_name();
    status = chatMessageTS->register_type(
        participant.in(),
        chatMessageTypeName);
    checkStatus(status, "NetworkPartitionsData::ChatMessageTypeSupport::register_type");

    /* Set the ReliabilityQosPolicy to RELIABLE. */
    status = participant->get_default_topic_qos(reliable_topic_qos);
    checkStatus(status, "DDS::DomainParticipant::get_default_topic_qos");
    reliable_topic_qos.reliability.kind = DDS::RELIABLE_RELIABILITY_QOS;

    /* Make the tailored QoS the new default. */
    status = participant->set_default_topic_qos(reliable_topic_qos);
    checkStatus(status, "DDS::DomainParticipant::set_default_topic_qos");

    /* Use the changed policy when defining the ChatMessage topic */
    chatMessageTopic = participant->create_topic(
        "Chat_ChatMessage",
        chatMessageTypeName,
        reliable_topic_qos,
        NULL,
        STATUS_MASK_NONE);
    checkHandle(chatMessageTopic.in(), "DDS::DomainParticipant::create_topic (ChatMessage)");

    /* Adapt the default SubscriberQos to read from the "ChatRoom1" Partition. */
    status = participant->get_default_subscriber_qos (sub_qos);
    checkStatus(status, "DDS::DomainParticipant::get_default_subscriber_qos");
    sub_qos.partition.name.length(1);
    sub_qos.partition.name[0] = partitionName;

    /* Create a Subscriber for the MessageBoard application. */
    chatSubscriber = participant->create_subscriber(sub_qos, NULL, STATUS_MASK_NONE);
    checkHandle(chatSubscriber.in(), "DDS::DomainParticipant::create_subscriber");

    /* Create a DataReader for the NamedMessage Topic (using the appropriate QoS). */
    parentReader = chatSubscriber->create_datareader(
        chatMessageTopic.in(),
        DATAREADER_QOS_USE_TOPIC_QOS,
        NULL,
        STATUS_MASK_NONE);
    checkHandle(parentReader, "DDS::Subscriber::create_datareader");

    /* Narrow the abstract parent into its typed representative. */
//.........这里部分代码省略.........

int
OSPL_MAIN (
    int argc,
    char *argv[])
{
    /* Generic DDS entities */
    DomainParticipantFactory_var    dpf;
    DomainParticipant_var           participant;
    Topic_var                       chatMessageTopic;
    Publisher_var                   chatPublisher;
    DataWriter_ptr                  parentWriter;

    /* QosPolicy holders */
    TopicQos                        reliable_topic_qos;
    PublisherQos                    pub_qos;
    DataWriterQos                   dw_qos;

    /* DDS Identifiers */
    DomainId_t                      domain = 0;
    InstanceHandle_t                userHandle;
    ReturnCode_t                    status;

    /* Type-specific DDS entities */
    ChatMessageTypeSupport_var      chatMessageTS;
    ChatMessageDataWriter_var       talker;

    /* Sample definitions */
    ChatMessage                     *msg;   /* Example on Heap */

    /* Others */
    int                             ownID = 1;
    int                             i;
    const char                      *partitionName = "ChatRoom1";
    char                            *chatMessageTypeName = NULL;
    char                            buf[MAX_MSG_LEN];

#ifdef INTEGRITY
#ifdef CHATTER_QUIT
    ownID = -1;
#else
    ownID = 1;
#endif
#else
    /* Options: Chatter [ownID] */
    if (argc > 1) {
        ownID = atoi(argv[1]);
    }
#endif

    /* Create a DomainParticipantFactory and a DomainParticipant (using Default QoS settings. */
    dpf = DomainParticipantFactory::get_instance ();
    checkHandle(dpf.in(), "DDS::DomainParticipantFactory::get_instance");
    participant = dpf->create_participant(domain, PARTICIPANT_QOS_DEFAULT, NULL, STATUS_MASK_NONE);
    checkHandle(participant.in(), "DDS::DomainParticipantFactory::create_participant");

    /* Register the required datatype for ChatMessage. */
    chatMessageTS = new ChatMessageTypeSupport();
    checkHandle(chatMessageTS.in(), "new ChatMessageTypeSupport");
    chatMessageTypeName = chatMessageTS->get_type_name();
    status = chatMessageTS->register_type(
        participant.in(),
        chatMessageTypeName);
    checkStatus(status, "NetworkPartitionsData::ChatMessageTypeSupport::register_type");

    /* Set the ReliabilityQosPolicy to RELIABLE. */
    status = participant->get_default_topic_qos(reliable_topic_qos);
    checkStatus(status, "DDS::DomainParticipant::get_default_topic_qos");
    reliable_topic_qos.reliability.kind = RELIABLE_RELIABILITY_QOS;

    /* Make the tailored QoS the new default. */
    status = participant->set_default_topic_qos(reliable_topic_qos);
    checkStatus(status, "DDS::DomainParticipant::set_default_topic_qos");

    /* Use the changed policy when defining the ChatMessage topic */
    chatMessageTopic = participant->create_topic(
        "Chat_ChatMessage",
        chatMessageTypeName,
        reliable_topic_qos,
        NULL,
        STATUS_MASK_NONE);
    checkHandle(chatMessageTopic.in(), "DDS::DomainParticipant::create_topic (ChatMessage)");

    /* Adapt the default PublisherQos to write into the "ChatRoom1" Partition. */
    status = participant->get_default_publisher_qos (pub_qos);
    checkStatus(status, "DDS::DomainParticipant::get_default_publisher_qos");
    pub_qos.partition.name.length(1);
    pub_qos.partition.name[0] = partitionName;

    /* Create a Publisher for the chatter application. */
    chatPublisher = participant->create_publisher(pub_qos, NULL, STATUS_MASK_NONE);
    checkHandle(chatPublisher.in(), "DDS::DomainParticipant::create_publisher");

    /* Create a DataWriter for the ChatMessage Topic (using the appropriate QoS). */
    parentWriter = chatPublisher->create_datawriter(
        chatMessageTopic.in(),
        DATAWRITER_QOS_USE_TOPIC_QOS,
        NULL,
        STATUS_MASK_NONE);
    checkHandle(parentWriter, "DDS::Publisher::create_datawriter (chatMessage)");

//.........这里部分代码省略.........