public IDataWriter CreateDataWriter(
ITopic topic,
DataWriterQos qos,
IDataWriterListener listener,
StatusKind mask)
{
ReturnCode result = DDS.ReturnCode.AlreadyDeleted;
DataWriter dataWriter = null;
Topic topicObj = topic as Topic;
ReportStack.Start();
lock (this)
{
if (this.rlReq_isAlive)
{
if (topicObj == null)
{
result = DDS.ReturnCode.BadParameter;
ReportStack.Report(result, "topic is invalid (null), or not of type " +
"DDS::OpenSplice::Topic.");
}
else
{
result = QosManager.checkQos(qos);
}
if (result == DDS.ReturnCode.Ok)
{
lock (topicObj)
{
if (topicObj.rlReq_isAlive)
{
TypeSupport ts = (topicObj as ITopicDescriptionImpl).rlReq_TypeSupport;
DatabaseMarshaler marshaler = DatabaseMarshaler.GetMarshaler(participant, ts.TypeSpec);
dataWriter = ts.CreateDataWriter(marshaler);
result = dataWriter.init(this, qos, topicObj, "writer <" + topicObj.Name + ">");
if (result == ReturnCode.Ok)
{
dataWriter.wlReq_ListenerDispatcher = this.wlReq_ListenerDispatcher;
result = dataWriter.SetListener(listener, mask);
}
else
{
dataWriter = null;
}
if (result == DDS.ReturnCode.Ok)
{
writerList.Add(dataWriter);
if (rlReq_AutoEnableCreatedEntities)
{
result = dataWriter.Enable();
}
}
}
else
{
// ALREADY_DELETED may only apply to the Publisher in this context,
// so for a deleted topic use BAD_PARAMETER instead.
result = DDS.ReturnCode.BadParameter;
}
}
}
if (result != ReturnCode.Ok && dataWriter != null)
{
// Ignore result because we prefer the original error.
DeleteDataWriter(dataWriter);
dataWriter = null;
}
}
}
ReportStack.Flush(this, result != ReturnCode.Ok);
return(dataWriter);
}
public IDataWriter CreateDataWriter(
ITopic topic,
IDataWriterListener listener,
StatusKind mask)
{
DataWriter dataWriter = null;
Topic topicObj = topic as Topic;
if (listener != null)
{
// Note: we use the same gapi lister as the DataWriter since the
// publisher doesn't add anything unique
OpenSplice.Gapi.gapi_publisherDataWriterListener gapiListener;
PublisherDataWriterListenerHelper listenerHelper = new PublisherDataWriterListenerHelper();
listenerHelper.Listener = listener;
listenerHelper.CreateListener(out gapiListener);
using (PublisherDataWriterListenerMarshaler listenerMarshaler =
new PublisherDataWriterListenerMarshaler(ref gapiListener))
{
IntPtr gapiPtr = Gapi.Publisher.create_datawriter(
GapiPeer,
topicObj.GapiPeer,
Gapi.NativeConstants.GapiDataWriterQosDefault,
listenerMarshaler.GapiPtr,
mask);
if (gapiPtr != IntPtr.Zero)
{
TypeSupport typeSupport = topic.Participant.GetTypeSupport(topic.TypeName)
as OpenSplice.TypeSupport;
dataWriter = typeSupport.CreateDataWriter(gapiPtr);
dataWriter.SetListener(listenerHelper);
}
}
}
else
{
IntPtr gapiPtr = Gapi.Publisher.create_datawriter(
GapiPeer,
topicObj.GapiPeer,
Gapi.NativeConstants.GapiDataWriterQosDefault,
IntPtr.Zero,
mask);
if (gapiPtr != IntPtr.Zero)
{
TypeSupport typeSupport = topic.Participant.GetTypeSupport(topic.TypeName)
as OpenSplice.TypeSupport;
dataWriter = typeSupport.CreateDataWriter(gapiPtr);
}
}
if (dataWriter != null)
{
PublisherQos pubQos = null;
ReturnCode result = GetQos(ref pubQos);
if (result == ReturnCode.Ok)
{
if (pubQos.EntityFactory.AutoenableCreatedEntities)
{
dataWriter.Enable();
}
}
}
return(dataWriter);
}