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qt-migration-legatus/qt6-after/qt6-migrated-legatus/include/DDS/Generic/generic_data_reader.h
T

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3.9 KiB
C++

#pragma once
/**
* @file generic_data_reader.h
* @brief Generic Data Reader wrapper for DDS
*
* Provides GenericDataReader template class that wraps RTI DataReader
* when BUILD_RTI=ON, or provides stub implementation when BUILD_RTI=OFF.
*/
#include <functional>
#include <string>
#ifdef BUILD_RTI
// RTI DDS is available - include full implementation from Lts
// MUST be included BEFORE namespace DDSGeneric to avoid namespace pollution
#include <Lts/DDS/Generic/dynamic_data_reader.h>
#include <Lts/DDS/Generic/generic_data_reader.h>
namespace DDSGeneric
{
// Full implementation is in Lts/DDS/Generic/generic_data_reader.h
// This file just provides the include path redirection
} // namespace DDSGeneric
#else
// BUILD_RTI=OFF: Provide minimal stub definitions for RTI types
namespace dds {
namespace sub {
namespace detail {
// Dummy delegate class to serve as default template parameter
template<typename Q>
class DataReaderImpl {
// Empty stub implementation
};
} // namespace detail
// Forward declaration stub for DataReader
// Must match RTI 7.7 signature for compatibility
template<typename T, template <typename Q> class DELEGATE = detail::DataReaderImpl>
class DataReader {
public:
// Minimal stub interface - add methods as needed by the codebase
T read() { return T{}; }
void take() {}
};
} // namespace sub
} // namespace dds
namespace DDSGeneric
{
// GenericDataReader stub template (only when BUILD_RTI=OFF)
template<typename T>
class GenericDataReader {
public:
using TopicType = T;
using TopicTypeRead = T;
using DataReader = void*;
using DataTopic = void*;
using DataReaderQos = void*;
using SubscriberCallback = std::function<void(const TopicTypeRead&, int)>;
using SubscriberCallbackWithSampleInfo = std::function<void(const TopicTypeRead&, const void*)>;
GenericDataReader()
: m_dataReader(nullptr), m_ddsTopic(nullptr), m_bHaveSubscriberCallback(false)
{
}
virtual ~GenericDataReader()
{
m_ddsTopic = nullptr;
m_dataReader = nullptr;
}
DataReader getDataReader() const
{
return m_dataReader;
}
bool create(const void* domainParticipant, const void* ddsSubscriber,
const std::string& topicName = std::string(),
bool bCreateDataReader = true)
{
return false;
}
bool hasSamples() const
{
return false;
}
void* readAlive(bool& bSeenNewSamples)
{
bSeenNewSamples = false;
return nullptr;
}
void* takeAlive(bool& bSeenNewSamples)
{
bSeenNewSamples = false;
return nullptr;
}
void* takeDisposed()
{
return nullptr;
}
template <typename C> bool read(C callbackFunc)
{
return false;
}
void setHaveSubscriberCallback(bool bHave)
{
m_bHaveSubscriberCallback = bHave;
}
std::string topicName() const
{
return std::string();
}
DataReader dataReader() const
{
return m_dataReader;
}
virtual void recreateReader()
{
}
protected:
DataReader m_dataReader;
DataReaderQos m_dataReaderQos;
DataTopic m_ddsTopic;
bool m_bHaveSubscriberCallback;
};
template<typename T>
class GenericDataReaderContentFilter {
public:
using DataType = T;
// Minimal stub - extend as needed
};
// DynamicDataReader stub for BUILD_RTI=OFF
class DynamicDataReader {
public:
using TopicType = void*;
using DataReader = void*;
using DataTopic = void*;
DynamicDataReader() {}
~DynamicDataReader() {}
bool create(const void* domainParticipant, const void* ddsSubscriber,
const std::string& specialTopicName, const void* structType)
{
return false;
}
bool hasSamples() const { return false; }
};
} // namespace DDSGeneric
#endif // BUILD_RTI