fsfw/serialize/SerializeIF.h

51 lines
1.7 KiB
C++

#ifndef SERIALIZEIF_H_
#define SERIALIZEIF_H_
#include <framework/returnvalues/HasReturnvaluesIF.h>
#include <cstddef>
/**
* @defgroup serialize Serialization
* Contains serialisation services.
*/
/**
* @brief An interface for alle classes which require
* translation of objects data into data streams and vice-versa.
* @details
* If the target architecture is little endian (e.g. ARM), any data types created might
* have the wrong endiness if they are to be used for the FSFW.
* There are three ways to retrieve data out of a buffer to be used in the FSFW to use
* regular aligned (big endian) data. This can also be applied to uint32_t and uint64_t:
*
* 1. Use the @c AutoSerializeAdapter::deSerialize function with @c bigEndian = true
* 2. Perform a bitshift operation
* 3. @c memcpy can be used when data is in little-endian format. Otherwise, @c EndianSwapper has to be used in conjuction.
*
* When serializing for downlink, the packets are generally serialized assuming big endian data format
* like seen in TmPacketStored.cpp for example.
*
* @ingroup serialize
*/
class SerializeIF {
public:
static const uint8_t INTERFACE_ID = CLASS_ID::SERIALIZE_IF;
static const ReturnValue_t BUFFER_TOO_SHORT = MAKE_RETURN_CODE(1);
static const ReturnValue_t STREAM_TOO_SHORT = MAKE_RETURN_CODE(2);
static const ReturnValue_t TOO_MANY_ELEMENTS = MAKE_RETURN_CODE(3);
virtual ~SerializeIF() {
}
virtual ReturnValue_t serialize(uint8_t** buffer, size_t* size,
const size_t max_size, bool bigEndian) const = 0;
virtual uint32_t getSerializedSize() const = 0;
virtual ReturnValue_t deSerialize(const uint8_t** buffer, int32_t* size,
bool bigEndian) = 0;
};
#endif /* SERIALIZEIF_H_ */