91 lines
3.4 KiB
C++
91 lines
3.4 KiB
C++
#ifndef FSFW_SERIALIZE_SERIALIZEIF_H_
|
|
#define FSFW_SERIALIZE_SERIALIZEIF_H_
|
|
|
|
#include "../returnvalues/HasReturnvaluesIF.h"
|
|
#include <cstddef>
|
|
|
|
/**
|
|
* @defgroup serialize Serialization
|
|
* Contains serialization services.
|
|
*/
|
|
|
|
/**
|
|
* @brief Translation of objects into data streams and from data streams.
|
|
* @details
|
|
* Also provides options to convert from/to data with different endianness.
|
|
* variables.
|
|
* @ingroup serialize
|
|
*/
|
|
class SerializeIF {
|
|
public:
|
|
enum class Endianness : uint8_t {
|
|
BIG,
|
|
LITTLE,
|
|
MACHINE,
|
|
NETWORK = BIG // Added for convenience like htons on sockets
|
|
};
|
|
|
|
static const uint8_t INTERFACE_ID = CLASS_ID::SERIALIZE_IF;
|
|
static const ReturnValue_t BUFFER_TOO_SHORT = MAKE_RETURN_CODE(1); // !< The given buffer in serialize is too short
|
|
static const ReturnValue_t STREAM_TOO_SHORT = MAKE_RETURN_CODE(2); // !< The input stream in deserialize is too short
|
|
static const ReturnValue_t TOO_MANY_ELEMENTS = MAKE_RETURN_CODE(3);// !< There are too many elements to be deserialized
|
|
|
|
virtual ~SerializeIF() {
|
|
}
|
|
/**
|
|
* @brief
|
|
* Function to serialize the object into a buffer with maxSize. Size represents the written amount.
|
|
* If a part of the buffer has been used already, size must be set to the used amount of bytes.
|
|
*
|
|
* @details
|
|
* Implementations of this function must increase the size variable and move the buffer pointer.
|
|
* MaxSize must be checked by implementations of this function
|
|
* and BUFFER_TOO_SHORT has to be returned if size would be larger than maxSize.
|
|
*
|
|
* Custom implementations might use additional return values.
|
|
*
|
|
* @param[in/out] buffer Buffer to serialize into, will be set to the current write location
|
|
* @param[in/out] size Size that has been used in the buffer already, will be increased by the function
|
|
* @param[in] maxSize The size of the buffer that is allowed to be used for serialize.
|
|
* @param[in] streamEndianness Endianness of the serialized data according to SerializeIF::Endianness
|
|
* @return
|
|
* - @c BUFFER_TOO_SHORT The given buffer in is too short
|
|
* - @c RETURN_FAILED Generic error
|
|
* - @c RETURN_OK Successful serialization
|
|
*/
|
|
virtual ReturnValue_t serialize(uint8_t **buffer, size_t *size,
|
|
size_t maxSize, Endianness streamEndianness) const = 0;
|
|
|
|
/**
|
|
* Gets the size of a object if it would be serialized in a buffer
|
|
* @return Size of serialized object
|
|
*/
|
|
virtual size_t getSerializedSize() const = 0;
|
|
|
|
/**
|
|
* @brief
|
|
* Deserializes a object from a given buffer of given size.
|
|
*
|
|
* @details
|
|
* Buffer must be moved to the current read location by the implementation
|
|
* of this function. Size must be decreased by the implementation.
|
|
* Implementations are not allowed to alter the buffer as indicated by const pointer.
|
|
*
|
|
* Custom implementations might use additional return values.
|
|
*
|
|
* @param[in/out] buffer Buffer to deSerialize from. Will be moved by the function.
|
|
* @param[in/out] size Remaining size of the buffer to read from. Will be decreased by function.
|
|
* @param[in] streamEndianness Endianness as in according to SerializeIF::Endianness
|
|
* @return
|
|
* - @c STREAM_TOO_SHORT The input stream is too short to deSerialize the object
|
|
* - @c TOO_MANY_ELEMENTS The buffer has more inputs than expected
|
|
* - @c RETURN_FAILED Generic Error
|
|
* - @c RETURN_OK Successful deserialization
|
|
*/
|
|
virtual ReturnValue_t deSerialize(const uint8_t **buffer, size_t *size,
|
|
Endianness streamEndianness) = 0;
|
|
|
|
};
|
|
|
|
#endif /* FSFW_SERIALIZE_SERIALIZEIF_H_ */
|