fsfw/housekeeping/HousekeepingSnapshot.h
2021-03-11 14:46:22 +01:00

118 lines
4.1 KiB
C++

#ifndef FSFW_HOUSEKEEPING_HOUSEKEEPINGSNAPSHOT_H_
#define FSFW_HOUSEKEEPING_HOUSEKEEPINGSNAPSHOT_H_
#include "../serialize/SerialBufferAdapter.h"
#include "../serialize/SerialLinkedListAdapter.h"
#include "../datapoollocal/LocalPoolDataSetBase.h"
#include "../datapoollocal/LocalPoolObjectBase.h"
#include "../timemanager/CCSDSTime.h"
/**
* @brief This helper class will be used to serialize and deserialize update housekeeping packets
* into the store.
*/
class HousekeepingSnapshot:
public SerializeIF {
public:
/**
* Update packet constructor for datasets.
* @param cdsShort If a CSD short timestamp is used, a reference should be
* supplied here
* @param dataSetPtr Pointer to the dataset instance to serialize or deserialize the
* data into
*/
HousekeepingSnapshot(CCSDSTime::CDS_short* cdsShort, LocalPoolDataSetBase* dataSetPtr):
timeStamp(reinterpret_cast<uint8_t*>(cdsShort)),
timeStampSize(sizeof(CCSDSTime::CDS_short)), updateData(dataSetPtr) {};
/**
* Update packet constructor for datasets.
* @param timeStamp Pointer to the buffer where the timestamp will be stored.
* @param timeStampSize Size of the timestamp
* @param dataSetPtr Pointer to the dataset instance to deserialize the data into
*/
HousekeepingSnapshot(uint8_t* timeStamp, size_t timeStampSize,
LocalPoolDataSetBase* dataSetPtr):
timeStamp(timeStamp), timeStampSize(timeStampSize),
updateData(dataSetPtr) {};
/**
* Update packet constructor for pool variables.
* @param timeStamp
* @param timeStampSize
* @param dataSetPtr
*/
HousekeepingSnapshot(CCSDSTime::CDS_short* cdsShort, LocalPoolObjectBase* dataSetPtr):
timeStamp(reinterpret_cast<uint8_t*>(cdsShort)),
timeStampSize(sizeof(CCSDSTime::CDS_short)), updateData(dataSetPtr) {};
/**
* Update packet constructor for pool variables.
* @param timeStamp
* @param timeStampSize
* @param dataSetPtr
*/
HousekeepingSnapshot(uint8_t* timeStamp, size_t timeStampSize,
LocalPoolObjectBase* dataSetPtr):
timeStamp(timeStamp), timeStampSize(timeStampSize),
updateData(dataSetPtr) {};
virtual ReturnValue_t serialize(uint8_t **buffer, size_t *size, size_t maxSize,
Endianness streamEndianness) const {
if(timeStamp != nullptr) {
/* Endianness will always be MACHINE, so we can simply use memcpy
here. */
std::memcpy(*buffer, timeStamp, timeStampSize);
*size += timeStampSize;
*buffer += timeStampSize;
}
if(updateData == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
return updateData->serialize(buffer, size, maxSize, streamEndianness);
}
virtual size_t getSerializedSize() const {
if(updateData == nullptr) {
return 0;
}
return timeStampSize + updateData->getSerializedSize();
}
virtual ReturnValue_t deSerialize(const uint8_t** buffer, size_t* size,
SerializeIF::Endianness streamEndianness) override {
if(*size < timeStampSize) {
return SerializeIF::STREAM_TOO_SHORT;
}
if(timeStamp != nullptr) {
/* Endianness will always be MACHINE, so we can simply use memcpy
here. */
std::memcpy(timeStamp, *buffer, timeStampSize);
*size -= timeStampSize;
*buffer += timeStampSize;
}
if(updateData == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
if(*size < updateData->getSerializedSize()) {
return SerializeIF::STREAM_TOO_SHORT;
}
return updateData->deSerialize(buffer, size, streamEndianness);
}
private:
uint8_t* timeStamp = nullptr;
size_t timeStampSize = 0;
SerializeIF* updateData = nullptr;
};
#endif /* FSFW_HOUSEKEEPING_HOUSEKEEPINGSNAPSHOT_H_ */