fsfw/serialize/SerialBufferAdapter.h
2020-09-18 13:15:14 +02:00

79 lines
2.6 KiB
C++

#ifndef SERIALBUFFERADAPTER_H_
#define SERIALBUFFERADAPTER_H_
#include "../serialize/SerializeIF.h"
#include "../serialize/SerializeAdapter.h"
/**
* This adapter provides an interface for SerializeIF to serialize or deserialize
* buffers with no length header but a known size.
*
* Additionally, the buffer length can be serialized too and will be put in
* front of the serialized buffer.
*
* Can be used with SerialLinkedListAdapter by declaring a SerializeElement with
* SerialElement<SerialBufferAdapter<bufferLengthType(will be uint8_t mostly)>>.
* Right now, the SerialBufferAdapter must always
* be initialized with the buffer and size !
*
* \ingroup serialize
*/
template<typename count_t>
class SerialBufferAdapter: public SerializeIF {
public:
/**
* Constructor for constant uint8_t buffer. Length field can be serialized optionally.
* Type of length can be supplied as template type.
* @param buffer
* @param bufferLength
* @param serializeLength
*/
SerialBufferAdapter(const uint8_t* buffer, count_t bufferLength,
bool serializeLength = false);
/**
* Constructor for non-constant uint8_t buffer.
* Length field can be serialized optionally.
* Type of length can be supplied as template type.
* @param buffer
* @param bufferLength
* @param serializeLength Length field will be serialized with size count_t
*/
SerialBufferAdapter(uint8_t* buffer, count_t bufferLength,
bool serializeLength = false);
virtual ~SerialBufferAdapter();
virtual ReturnValue_t serialize(uint8_t** buffer, size_t* size,
size_t maxSize, Endianness streamEndianness) const override;
virtual size_t getSerializedSize() const override;
/**
* @brief This function deserializes a buffer into the member buffer.
* @details
* If a length field is present, it is ignored, as the size should have
* been set in the constructor. If the size is not known beforehand,
* consider using SerialFixedArrayListAdapter instead.
* @param buffer [out] Resulting buffer
* @param size remaining size to deserialize, should be larger than buffer
* + size field size
* @param bigEndian
* @return
*/
virtual ReturnValue_t deSerialize(const uint8_t** buffer, size_t* size,
Endianness streamEndianness) override;
uint8_t * getBuffer();
const uint8_t * getConstBuffer();
void setBuffer(uint8_t* buffer, count_t bufferLength);
private:
bool serializeLength = false;
const uint8_t *constBuffer = nullptr;
uint8_t *buffer = nullptr;
count_t bufferLength = 0;
};
#endif /* SERIALBUFFERADAPTER_H_ */