DDS_Topic DDS_DomainParticipant_create_topic (DDS_DomainParticipant dp,
const char *topic_name,
const char *type_name,
const DDS_TopicQos *qos,
const DDS_TopicListener *listener,
DDS_StatusMask mask)
{
Topic_t *tp;
int new_topic;
ctrc_begind (DCPS_ID, DCPS_DP_C_TOP, &dp, sizeof (dp));
ctrc_contd (topic_name, strlen (topic_name) + 1);
ctrc_contd (type_name, strlen (type_name) + 1);
ctrc_contd (&qos, sizeof (qos));
ctrc_contd (&listener, sizeof (listener));
ctrc_contd (&mask, sizeof (mask));
ctrc_endd ();
prof_start (dcps_create_topic);
/* Get Domain Participant. */
if (!domain_ptr (dp, 1, NULL)) {
log_printf (DCPS_ID, 0, "create_topic(%s): domain doesn't exist!\r\n", topic_name);
return (NULL);
}
if (qos == DDS_TOPIC_QOS_DEFAULT)
qos = &dp->def_topic_qos;
else if (!qos_valid_topic_qos (qos)) {
log_printf (DCPS_ID, 0, "create_topic(%s): invalid topic QoS!\r\n", topic_name);
lock_release (dp->lock);
return (NULL);
}
#ifdef DDS_SECURITY
/* Check if security policy allows this topic. */
if (check_create_topic (dp->participant.p_permissions, topic_name, qos)) {
log_printf (DCPS_ID, 0, "create_topic(%s): topic create not allowed!\r\n", topic_name);
lock_release (dp->lock);
return (NULL);
}
#endif
/* New topic: create topic context. */
tp = topic_create (&dp->participant, NULL, topic_name, type_name, &new_topic);
if (!tp) {
log_printf (DCPS_ID, 0, "create_topic (%s): out of memory for topic!\r\n", topic_name);
lock_release (dp->lock);
return (NULL);
}
/* Set Qos fields appropriately. */
if (new_topic)
tp->qos = qos_topic_new (qos);
else if (tp->nlrefs == 1) /* First real QoS setting. */
qos_topic_update (&tp->qos, qos);
/* Check if the supplied listener can be set on the topic. Ok, if no
listener was previously set or the supplied listener is the same as
the previously set listener. */
if (listener) {
if (!new_topic &&
memcmp (&tp->listener, listener, sizeof (tp->listener)))
log_printf (DCPS_ID, 0, "create_topic(%s): existing listener updated!\r\n", topic_name);
tp->listener = *listener;
}
/* Check if the mask is the same. */
if (!new_topic && mask && mask != tp->mask)
log_printf (DCPS_ID, 0, "create_topic(%s): existing mask updated!\r\n", topic_name);
tp->mask = mask;
lock_release (dp->lock);
if (dp->autoenable)
DDS_Topic_enable ((DDS_Topic) tp);
prof_stop (dcps_create_topic, 1);
return (tp);
}
static void test_qos (int enabled)
{
DDS_DomainParticipantFactoryQos qos;
DDS_DomainParticipant p;
DDS_Publisher pub;
DDS_Subscriber sub;
DDS_DataWriter dw;
DDS_DataReader dr;
DDS_Topic t;
DDS_TopicDescription td;
DDS_DataReaderQos rq, refrq;
DDS_ReturnCode_t r;
static unsigned char data [] = { 0x77, 0x88, 0xaa, 0xbb, 0xcc, 0xdd };
unsigned char d2 [sizeof (data) + 1];
unsigned n;
int err;
v_printf (" - Set factory QoS to %sabled.\r\n", (enabled) ? "en" : "dis");
r = DDS_DomainParticipantFactory_get_qos (&qos);
fail_unless (r == DDS_RETCODE_OK);
qos.entity_factory.autoenable_created_entities = enabled;
r = DDS_DomainParticipantFactory_set_qos (&qos);
fail_unless (r == DDS_RETCODE_OK);
p = DDS_DomainParticipantFactory_create_participant (0, DDS_PARTICIPANT_QOS_DEFAULT, NULL, 0);
fail_unless (p != NULL);
r = register_HelloWorldData_type (p);
fail_unless (r == DDS_RETCODE_OK);
t = DDS_DomainParticipant_create_topic (p, "HelloWorld", TYPE_NAME, DDS_TOPIC_QOS_DEFAULT, NULL, 0);
fail_unless (t != NULL);
td = DDS_DomainParticipant_lookup_topicdescription (p, "HelloWorld");
fail_unless (td != NULL);
sub = DDS_DomainParticipant_create_subscriber (p, NULL, NULL, 0);
fail_unless (sub != NULL);
DDS_DataReaderQos__init (&refrq);
err = dds_seq_from_array (&refrq.user_data, data, sizeof (data));
fail_unless (err == 0);
v_printf (" - Create datareader with specific QoS parameters.\r\n");
dr = DDS_Subscriber_create_datareader (sub, td, &refrq, NULL, 0);
fail_unless (dr != NULL);
memset (&rq, 0, sizeof (rq));
r = DDS_DataReader_get_qos (dr, &rq);
n = dds_seq_to_array (&rq.user_data, d2, sizeof (d2));
fail_unless (r == DDS_RETCODE_OK &&
DDS_SEQ_LENGTH (refrq.user_data.value) == sizeof (data));
n = dds_seq_to_array (&rq.user_data, d2, sizeof (d2));
fail_unless (n == sizeof (data) && !memcmp (data, d2, sizeof (data)));
DDS_DataReaderQos__clear (&rq);
r = DDS_Subscriber_delete_datareader (sub, dr);
fail_unless (r == DDS_RETCODE_OK);
v_printf (" - Create datareader with default QoS parameters.\r\n");
dr = DDS_Subscriber_create_datareader (sub, td, DDS_DATAREADER_QOS_DEFAULT, NULL, 0);
fail_unless (dr != NULL);
pub = DDS_DomainParticipant_create_publisher (p, DDS_PUBLISHER_QOS_DEFAULT, NULL, 0);
fail_unless (sub != NULL);
dw = DDS_Publisher_create_datawriter (pub, t, DDS_DATAWRITER_QOS_DEFAULT, NULL, 0);
fail_unless (dw != NULL);
v_printf (" - Update datareader QoS parameters.\r\n");
r = DDS_DataReader_get_qos (dr, &rq);
fail_unless (r == DDS_RETCODE_OK);
DDS_DataReaderQos__clear (&refrq);
fail_unless (r == DDS_RETCODE_OK && !memcmp (&rq, &refrq, sizeof (refrq)));
err = dds_seq_from_array (&refrq.user_data, data, sizeof (data));
fail_unless (err == 0);
r = DDS_DataReader_set_qos (dr, &refrq);
fail_unless (r == DDS_RETCODE_OK);
delay ();
r = DDS_DataReader_get_qos (dr, &rq);
fail_unless (r == DDS_RETCODE_OK &&
DDS_SEQ_LENGTH (rq.user_data.value) == sizeof (data));
n = dds_seq_to_array (&rq.user_data, d2, sizeof (d2));
fail_unless (n == sizeof (data) && !memcmp (data, d2, sizeof (data)));
DDS_DataReaderQos__clear (&refrq);
DDS_DataReaderQos__clear (&rq);
delay ();
if (!enabled) {
v_printf (" - Enable all entities.\r\n");
r = DDS_DomainParticipant_enable (p);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_Topic_enable (t);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_Publisher_enable (pub);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_Subscriber_enable (sub);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DataWriter_enable (dw);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DataReader_enable (dr);
fail_unless (r == DDS_RETCODE_OK);
sleep (1);
}
r = DDS_Publisher_delete_datawriter (pub, dw);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_Subscriber_delete_datareader (sub, dr);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DomainParticipant_delete_publisher (p, pub);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DomainParticipant_delete_subscriber (p, sub);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DomainParticipant_delete_topic (p, t);
fail_unless (r == DDS_RETCODE_OK);
unregister_HelloWorldData_type (p);
r = DDS_DomainParticipantFactory_delete_participant (p);
fail_unless (r == DDS_RETCODE_OK);
}
static void test_qos (int enabled)
{
DDS_DomainParticipantFactoryQos qos;
DDS_DomainParticipant p;
DDS_Publisher pub;
DDS_Subscriber sub;
DDS_DataWriter dw;
DDS_DataReader dr;
DDS_Topic t;
DDS_TopicDescription td;
DDS_SubscriberQos psq, refsq;
DDS_ReturnCode_t r;
static char *buf [] = { "Hello", "World" };
static unsigned char data [] = { 0x77, 0x88, 0xaa, 0xbb, 0xcc };
unsigned char d2 [sizeof (data) + 1];
unsigned n;
size_t i;
int err;
v_printf (" - Set factory QoS to %sabled.\r\n", (enabled) ? "en" : "dis");
r = DDS_DomainParticipantFactory_get_qos (&qos);
fail_unless (r == DDS_RETCODE_OK);
qos.entity_factory.autoenable_created_entities = enabled;
r = DDS_DomainParticipantFactory_set_qos (&qos);
fail_unless (r == DDS_RETCODE_OK);
p = DDS_DomainParticipantFactory_create_participant (1, DDS_PARTICIPANT_QOS_DEFAULT, NULL, 0);
fail_unless (p != NULL);
r = register_HelloWorldData_type (p);
fail_unless (r == DDS_RETCODE_OK);
DDS_SubscriberQos__init (&refsq);
for (i = 0; (size_t) i < sizeof (buf) / sizeof (char *); i++) {
err = dds_seq_append (&refsq.partition.name, &buf [i]);
fail_unless (err == 0);
}
err = dds_seq_from_array (&refsq.group_data, data, sizeof (data));
fail_unless (err == 0);
v_printf (" - Create subscriber with specific QoS parameters.\r\n");
sub = DDS_DomainParticipant_create_subscriber (p, &refsq, NULL, 0);
fail_unless (sub != NULL);
memset (&psq, 0, sizeof (psq));
r = DDS_Subscriber_get_qos (sub, &psq);
fail_unless (r == DDS_RETCODE_OK &&
DDS_SEQ_LENGTH (refsq.partition.name) == DDS_SEQ_LENGTH (psq.partition.name) &&
DDS_SEQ_LENGTH (refsq.group_data.value) == sizeof (data));
DDS_SEQ_FOREACH (refsq.partition.name, i)
fail_unless (!strcmp (DDS_SEQ_ITEM (psq.partition.name, i),
DDS_SEQ_ITEM (refsq.partition.name, i)));
n = dds_seq_to_array (&psq.group_data, d2, sizeof (d2));
fail_unless (n == sizeof (data) && !memcmp (data, d2, sizeof (data)));
DDS_SubscriberQos__clear (&psq);
r = DDS_DomainParticipant_delete_subscriber (p, sub);
fail_unless (r == DDS_RETCODE_OK);
v_printf (" - Create topic/publisher/writer/subscriber/reader entities.\r\n");
t = DDS_DomainParticipant_create_topic (p, "HelloWorld", TYPE_NAME, DDS_TOPIC_QOS_DEFAULT, NULL, 0);
fail_unless (t != NULL);
td = DDS_DomainParticipant_lookup_topicdescription (p, "HelloWorld");
fail_unless (td != NULL);
pub = DDS_DomainParticipant_create_publisher (p, DDS_PUBLISHER_QOS_DEFAULT, NULL, 0);
fail_unless (pub != NULL);
dw = DDS_Publisher_create_datawriter (pub, t, DDS_DATAWRITER_QOS_DEFAULT, NULL, 0);
fail_unless (dw != NULL);
sub = DDS_DomainParticipant_create_subscriber (p, DDS_SUBSCRIBER_QOS_DEFAULT, NULL, 0);
fail_unless (sub != NULL);
dr = DDS_Subscriber_create_datareader (sub, td, DDS_DATAREADER_QOS_DEFAULT, NULL, 0);
fail_unless (dr != NULL);
v_printf (" - Update subscriber QoS.\r\n");
r = DDS_Subscriber_get_qos (sub, &psq);
fail_unless (r == DDS_RETCODE_OK);
DDS_SubscriberQos__clear (&refsq);
fail_unless (r == DDS_RETCODE_OK && !memcmp (&psq, &refsq, sizeof (refsq)));
for (i = 0; (size_t) i < sizeof (buf) / sizeof (char *); i++) {
err = dds_seq_append (&refsq.partition.name, &buf [i]);
fail_unless (err == 0);
}
err = dds_seq_from_array (&refsq.group_data, data, sizeof (data));
fail_unless (err == 0);
r = DDS_Subscriber_set_qos (sub, &refsq);
fail_unless (r == DDS_RETCODE_OK);
delay ();
r = DDS_Subscriber_get_qos (sub, &psq);
fail_unless (r == DDS_RETCODE_OK &&
DDS_SEQ_LENGTH (refsq.partition.name) == DDS_SEQ_LENGTH (psq.partition.name) &&
DDS_SEQ_LENGTH (psq.group_data.value) == sizeof (data));
DDS_SEQ_FOREACH (psq.partition.name, i)
fail_unless (!strcmp (DDS_SEQ_ITEM (psq.partition.name, i),
DDS_SEQ_ITEM (refsq.partition.name, i)));
n = dds_seq_to_array (&psq.group_data, d2, sizeof (d2));
fail_unless (n == sizeof (data) && !memcmp (data, d2, sizeof (data)));
DDS_SubscriberQos__clear (&refsq);
DDS_SubscriberQos__clear (&psq);
delay ();
if (!enabled) {
v_printf (" - Enable child entities.\r\n");
r = DDS_DomainParticipant_enable (p);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_Topic_enable (t);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_Publisher_enable (pub);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_Subscriber_enable (sub);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DataWriter_enable (dw);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DataReader_enable (dr);
fail_unless (r == DDS_RETCODE_OK);
sleep (1);
}
v_printf (" - Delete child entities.\r\n");
r = DDS_Publisher_delete_datawriter (pub, dw);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_Subscriber_delete_datareader (sub, dr);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DomainParticipant_delete_publisher (p, pub);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DomainParticipant_delete_subscriber (p, sub);
fail_unless (r == DDS_RETCODE_OK);
r = DDS_DomainParticipant_delete_topic (p, t);
fail_unless (r == DDS_RETCODE_OK);
unregister_HelloWorldData_type (p);
r = DDS_DomainParticipantFactory_delete_participant (p);
fail_unless (r == DDS_RETCODE_OK);
}
