_DataReaderView
_DataReaderViewNew (
const gapi_dataReaderViewQos * qos,
const _DataReader datareader)
{
_DataReaderView _this;
v_dataViewQos ViewQos;
u_dataView uReaderView;
_TypeSupport typeSupport;
_this = _DataReaderViewAlloc();
if ( _this != NULL ) {
_EntityInit(_Entity(_this),
_Entity(datareader));
typeSupport = _TopicDescriptionGetTypeSupport(datareader->topicDescription);
assert(typeSupport);
_this->datareader = datareader;
ViewQos = u_dataViewQosNew(NULL);
if ( ViewQos != NULL ) {
if ( !copyReaderViewQosIn(qos, ViewQos) ) {
u_dataViewQosFree(ViewQos);
_EntityDispose(_Entity(_this));
_this = NULL;
}
} else {
_EntityDispose(_Entity(_this));
_this = NULL;
}
}
if ( _this != NULL ) {
uReaderView = u_dataViewNew(u_dataReader(_EntityUEntity (datareader)),
"dataReaderView",
ViewQos);
if ( uReaderView ) {
U_DATAREADERVIEW_SET(_this, uReaderView);
} else {
_EntityDispose(_Entity(_this));
_this = NULL;
}
u_dataViewQosFree(ViewQos);
}
if ( _this != NULL ) {
if ( !initViewQuery(_this) ) {
u_dataViewFree(uReaderView);
_EntityDispose(_Entity(_this));
_this = NULL;
}
}
if ( _this != NULL ) {
_EntityStatus(_this) = _Entity(datareader)->status;
}
return _this;
}
u_result
u_subscriberDeleteContainedEntities (
u_subscriber _this)
{
u_result result;
u_reader reader;
c_iter list;
if (_this != NULL) {
result = u_entityLock(u_entity(_this));
if (result == U_RESULT_OK) {
list = _this->readers;
_this->readers = NULL;
/* Unlock here because following code will take this lock. */
u_entityUnlock(u_entity(_this));
reader = c_iterTakeFirst(list);
while (reader) {
switch (u_entityKind(u_entity(reader))) {
case U_READER:
result = u_dataReaderDeleteContainedEntities(u_dataReader(reader));
result = u_dataReaderFree(u_dataReader(reader));
break;
case U_GROUPQUEUE:
result = u_groupQueueFree(u_groupQueue(reader));
break;
case U_DATAVIEW:
result = u_dataViewFree(u_dataView(reader));
break;
case U_NETWORKREADER:
result = u_networkReaderFree(u_networkReader(reader));
break;
default:
OS_REPORT_2(OS_WARNING,
"u_subscriberDeleteContainedEntities",0,
"invalid object type: "
"For Subscriber = 0x%x, found Reader type = %s.",
_this, u_kindImage(u_entityKind(u_entity(reader))));
assert(0);
break;
}
u_entityDereference(u_entity(_this));
reader = c_iterTakeFirst(list);
}
c_iterFree(list);
} else {
OS_REPORT_2(OS_WARNING,
"u_subscriberDeleteContainedEntities",0,
"Operation u_entityLock failed: "
"Subscriber = 0x%x, result = %s.",
_this, u_resultImage(result));
}
} else {
OS_REPORT(OS_WARNING,
"u_subscriberDeleteContainedEntities",0,
"Invalid Subscriber <NULL>.");
result = U_RESULT_ILL_PARAM;
}
return result;
}
gapi_returnCode_t
_DataReaderViewFree (
_DataReaderView dataReaderView)
{
gapi_returnCode_t result = GAPI_RETCODE_OK;
u_dataView v;
assert(dataReaderView);
u_queryFree(dataReaderView->uQuery);
gapi_loanRegistry_free(dataReaderView->loanRegistry);
v = U_DATAREADERVIEW_GET(dataReaderView);
_EntityDispose (_Entity(dataReaderView));
u_dataViewFree(v);
return result;
}
gapi_returnCode_t
gapi_dataReader_delete_contained_entities (
gapi_dataReader _this)
{
gapi_object handle;
gapi_returnCode_t result = GAPI_RETCODE_OK;
_DataReader datareader;
gapi_context context;
_Condition condition = NULL;
_DataReaderView view = NULL;
c_iter entities;
u_entity e;
u_result ur;
GAPI_CONTEXT_SET(context, _this, GAPI_METHOD_DELETE_CONTAINED_ENTITIES);
datareader = gapi_dataReaderClaim(_this, &result);
if ( datareader != NULL ) {
if (!gapi_loanRegistry_is_empty(datareader->loanRegistry)) {
result = GAPI_RETCODE_PRECONDITION_NOT_MET;
} else {
entities = u_readerLookupQueries(U_READER_GET(datareader));
e = c_iterTakeFirst(entities);
while (e) {
condition = u_entityGetUserData(e);
if (condition) {
_ObjectReadClaimNotBusy(_Object(condition));
_ConditionFree(condition);
} else {
assert(condition);
result = GAPI_RETCODE_BAD_PARAMETER;
}
e = c_iterTakeFirst(entities);
}
c_iterFree(entities);
entities = u_dataReaderLookupViews(U_DATAREADER_GET(datareader));
e = c_iterTakeFirst(entities);
while (e) {
handle = u_entityGetUserData(e);
view = _DataReaderView(gapi_conditionClaimNB(handle,&result));
if (view) {
_DataReaderViewFree(view);
} else {
ur = u_dataViewFree(u_dataView(e));
if (ur == U_RESULT_OK) {
result = GAPI_RETCODE_OK;
} else {
result = GAPI_RETCODE_BAD_PARAMETER;
}
}
e = c_iterTakeFirst(entities);
}
c_iterFree(entities);
}
_EntityRelease(datareader);
} else {
result = GAPI_RETCODE_BAD_PARAMETER;
}
return result;
}
