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Merge pull request 'Comments in serializeIF' (#174) from gaisser/fsfw:gaisser_comments_serialize into master 

Reviewed-on: #174
This commit is contained in:
Robin Müller 2020-09-01 11:37:21 +02:00
parent b4978e7df3 c0ed474373
commit f645fe6607
1 changed files with 55 additions and 11 deletions
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66
serialize/SerializeIF.h
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@ -1,17 +1,17 @@
#ifndef SERIALIZEIF_H_
#define SERIALIZEIF_H_
#ifndef FSFW_SERIALIZE_SERIALIZEIF_H_
#define FSFW_SERIALIZE_SERIALIZEIF_H_
#include "../returnvalues/HasReturnvaluesIF.h"
#include <stddef.h>
/**
* \defgroup serialize Serialization
* Contains serialisation services.
* @defgroup serialize Serialization
* Contains serialization services.
*/
/**
* Translation of objects into data streams.
* \ingroup serialize
* Translation of objects into data streams and from data streams.
* @ingroup serialize
*/
class SerializeIF {
public:
@ -20,21 +20,65 @@ 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);
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
* - @¢ 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 /* SERIALIZEIF_H_ */
#endif /* FSFW_SERIALIZE_SERIALIZEIF_H_ */