void
d_readerListenerInitDataReader(
d_readerListener listener,
d_subscriber subscriber,
const c_char* name,
v_reliabilityKind reliability,
v_historyQosKind historyKind,
c_long historyDepth)
{
v_readerQos readerQos;
u_subscriber s;
d_networkAddress unaddressed, myAddr;
d_admin admin;
c_char *query;
q_expr expr;
assert(d_objectIsValid(d_object(listener), D_LISTENER));
if(listener && subscriber){
readerQos = d_readerQosNew(V_DURABILITY_VOLATILE, reliability);
readerQos->history.kind = historyKind;
readerQos->history.depth = historyDepth;
readerQos->lifecycle.autopurge_nowriter_samples_delay.seconds = 60;
readerQos->lifecycle.autopurge_nowriter_samples_delay.nanoseconds = 0;
readerQos->lifecycle.autopurge_disposed_samples_delay.seconds = 10;
readerQos->lifecycle.autopurge_disposed_samples_delay.nanoseconds = 0;
s = d_subscriberGetSubscriber(subscriber);
admin = d_subscriberGetAdmin(subscriber);
myAddr = d_adminGetMyAddress(admin);
unaddressed = d_networkAddressUnaddressed();
/*
* Message is:
* - meant for me or
* - meant for all and not sent by me
*/
#define FILTER_EXPRESSION "select * from %s where " \
"parentMsg.addressee.systemId=%u OR " \
"parentMsg.addressee.systemId=%u AND " \
"parentMsg.senderAddress.systemId!=%u"
query = (c_char*)(os_malloc(strlen(listener->name) +
strlen(FILTER_EXPRESSION) + 32));
os_sprintf(query, FILTER_EXPRESSION, listener->name,
myAddr->systemId, unaddressed->systemId, myAddr->systemId);
expr = q_parse(query);
listener->dataReader =
u_dataReaderNew (s, name, expr, NULL, readerQos, TRUE);
q_dispose(expr);
os_free(query);
#undef FILTER_EXPRESSION
d_networkAddressFree(myAddr);
d_networkAddressFree(unaddressed);
d_readerQosFree(readerQos);
}
}
u_dataReader
u_subscriberCreateDataReader (
u_subscriber _this,
const c_char *name,
const c_char *expression,
c_value params[],
v_readerQos qos,
c_bool enable)
{
u_dataReader reader;
q_expr expr;
if (_this) {
if (expression) {
expr = q_parse(expression);
if (!expr) {
OS_REPORT_1(OS_WARNING,
"u_subscriberCreateDataReader",0,
"Invalid filter expression: '%s'.",
expression);
}
} else {
expr = NULL;
}
reader = u_dataReaderNew(_this, name, expr, params, qos, enable);
if (expr) {
q_dispose(expr);
}
} else {
reader = NULL;
OS_REPORT(OS_WARNING,
"u_subscriberCreateDataReader",0,
"Bad parameter: Subscriber = NULL.");
}
return reader;
}
c_char*
cmx_dataReaderNew(
const c_char* subscriber,
const c_char* name,
const c_char* view,
const c_char* qos)
{
u_subscriber sub;
u_dataReader rea;
c_char* result;
cmx_entityArg arg;
u_result ur;
cmx_entityKernelArg kernelArg;
v_readerQos rqos;
q_expr qexpr;
result = NULL;
sub = u_subscriber(cmx_entityUserEntity(subscriber));
if(sub != NULL){
kernelArg = cmx_entityKernelArg(os_malloc(C_SIZEOF(cmx_entityKernelArg)));
u_entityAction(u_entity(sub),
cmx_entityKernelAction,
(c_voidp)kernelArg);
if(qos != NULL){
rqos = v_readerQos(cmx_qosKernelQosFromKind(qos, K_DATAREADER, c_getBase(c_object(kernelArg->kernel))));
if(rqos == NULL){
rqos = v_readerQosNew(kernelArg->kernel, NULL);
}
} else {
rqos = v_readerQosNew(kernelArg->kernel, NULL);
}
if(view != NULL){
qexpr = q_parse(view);
if(qexpr != NULL){
rea = u_dataReaderNew(sub, name, qexpr, NULL, rqos, TRUE);
q_dispose(qexpr);
} else {
rea = NULL;
OS_REPORT(OS_ERROR, CM_XML_CONTEXT, 0,
"cmx_dataReaderNew: invalid view expression.");
}
} else {
rea = u_dataReaderNew(sub, name, NULL, NULL, rqos, TRUE);
}
c_free(rqos);
os_free(kernelArg);
if(rea != NULL){
cmx_registerEntity(u_entity(rea));
arg = cmx_entityArg(os_malloc((os_uint32)(C_SIZEOF(cmx_entityArg))));
arg->entity = u_entity(rea);
arg->create = FALSE;
arg->participant = NULL;
arg->result = NULL;
ur = u_entityAction(u_entity(rea),
cmx_entityNewFromAction,
(c_voidp)(arg));
if(ur == U_RESULT_OK){
result = arg->result;
os_free(arg);
}
}
}
return result;
}
_DataReader
_DataReaderNew (
const _TopicDescription topicDescription,
const _TypeSupport typesupport,
const gapi_dataReaderQos *qos,
const struct gapi_dataReaderListener *a_listener,
const gapi_statusMask mask,
const _Subscriber subscriber)
{
_DataReader _this;
v_readerQos readerQos;
u_dataReader uReader;
gapi_string topicName;
char dataReaderId[256];
c_bool noError = TRUE;
readerQos = u_readerQosNew(NULL);
if ( readerQos != NULL ) {
if ( gapi_kernelReaderQosCopyIn(qos, readerQos) ) {
q_expr expr;
c_value *params;
topicName = _TopicDescriptionGetName (topicDescription);
if (topicName) {
snprintf (dataReaderId,
sizeof(dataReaderId),
"%sReader", topicName);
gapi_free (topicName);
} else {
snprintf (dataReaderId,
sizeof(dataReaderId),
"dataReader");
}
expr = _TopicDescriptionGetExpr(topicDescription);
if (_ObjectGetKind(_Object(topicDescription)) ==
OBJECT_KIND_CONTENTFILTEREDTOPIC) {
params = _ContentFilteredTopicParameters(
(_ContentFilteredTopic)topicDescription);
} else {
params = NULL;
}
uReader = u_dataReaderNew(_SubscriberUsubscriber(subscriber),
dataReaderId,
expr,
params,
readerQos,
FALSE);
q_dispose(expr);
os_free(params);
noError = (uReader != NULL);
if (noError) {
_this = _DataReaderAlloc();
if ( _this != NULL ) {
noError = _DataReaderInit(_this,
subscriber,
topicDescription,
typesupport,
a_listener,
mask,
uReader);
if (!noError) {
_EntityDispose(_Entity(_this));
}
}
if (!noError) {
u_dataReaderFree(uReader);
}
}
} else {
noError = FALSE;
}
u_readerQosFree(readerQos);
} else {
noError = FALSE;
}
if (!noError) {
_this = NULL;
}
return _this;
}
DDS::ReturnCode_t
DDS::OpenSplice::DataReader::nlReq_init (
DDS::OpenSplice::Subscriber *subscriber,
const DDS::DataReaderQos &qos,
DDS::OpenSplice::TopicDescription *a_topic,
const char *name)
{
DDS::OpenSplice::ContentFilteredTopic *contentFilteredTopic;
DDS::ULong i = 0;
DDS::ULong length = 0;
DDS::ULong bytes = 0;
DDS::ReturnCode_t result = DDS::RETCODE_OK;
u_readerQos uReaderQos = NULL;
u_dataReader uReader = NULL;
const char *expression = NULL;
c_value *uParameters = NULL;
assert (subscriber != NULL);
/* Only check for QoS consistency here in debug builds. It's unnecessary to
to verify it twice in release builds. */
assert (DDS::OpenSplice::Utils::qosIsConsistent (qos) == DDS::RETCODE_OK);
assert (a_topic != NULL);
assert (name != NULL);
uReaderQos = u_readerQosNew (NULL);
if (uReaderQos != NULL) {
result = DDS::OpenSplice::Utils::copyQosIn (qos, uReaderQos);
} else {
result = DDS::RETCODE_OUT_OF_RESOURCES;
CPP_REPORT(result, "Could not copy DataReaderQos.");
}
if (result == DDS::RETCODE_OK) {
result = this->pimpl->views->init();
}
if (result == DDS::RETCODE_OK) {
result = this->pimpl->conditions->init();
}
if (result == DDS::RETCODE_OK) {
result = a_topic->write_lock();
if (result == DDS::RETCODE_OK) {
expression = a_topic->rlReq_get_topic_expression ();
assert(expression);
switch (a_topic->rlReq_get_kind()) {
case DDS::OpenSplice::CONTENTFILTEREDTOPIC:
contentFilteredTopic =
dynamic_cast<DDS::OpenSplice::ContentFilteredTopic *>(a_topic);
if (contentFilteredTopic != NULL) {
length = contentFilteredTopic->filterParameters.length ();
if(length > 0) {
bytes = length * sizeof (struct c_value);
uParameters = (c_value *)os_malloc (bytes);
for (i = 0; i < length; i++) {
const c_string param = (const c_string) contentFilteredTopic->filterParameters[i].in();
uParameters[i] = c_stringValue(param);
}
}
} else {
result = DDS::RETCODE_BAD_PARAMETER;
CPP_REPORT(result, "a_topic invalid, not of type '%s'",
"DDS::OpenSplice::ContentFilteredTopic");
}
break;
case DDS::OpenSplice::TOPIC:
default:
uParameters = NULL;
break;
}
}
if (result == DDS::RETCODE_OK) {
uReader = u_dataReaderNew (
u_subscriber (subscriber->rlReq_get_user_entity ()),
name,
expression,
uParameters,
length,
uReaderQos);
if (uReader == NULL) {
result = DDS::RETCODE_OUT_OF_RESOURCES;
CPP_REPORT(result, "Could not create DataReader.");
}
}
if (result == DDS::RETCODE_OK) {
result = DDS::OpenSplice::Entity::nlReq_init (u_entity (uReader));
if (result == DDS::RETCODE_OK) {
(void) DDS::Subscriber::_duplicate(subscriber);
this->pimpl->subscriber = subscriber;
(void) DDS::TopicDescription::_duplicate(a_topic);
this->pimpl->topic = a_topic;
a_topic->wlReq_incrNrUsers();
setDomainId(subscriber->getDomainId());
}
}
a_topic->unlock();
}
if (uReaderQos) {
u_readerQosFree (uReaderQos);
}
if (uParameters) {
os_free (uParameters);
}
return result;
}
