release 0.0.1 of fsfw added as a core

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2021-06-21 15:04:15 +02:00
parent b4e5534407
commit caea75b0a8
587 changed files with 55346 additions and 0 deletions

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#ifndef FSFW_SERIALIZE_ENDIANCONVERTER_H_
#define FSFW_SERIALIZE_ENDIANCONVERTER_H_
#include "../osal/Endiness.h"
#include <cstring>
#include <iostream>
/**
* Helper class to convert variables or bitstreams between machine
* endian and either big or little endian.
* Machine endian is the endianness used by the machine running the
* program and is one of big or little endian. As this is portable
* code, it is not known at coding time which it is. At compile time
* it is however, which is why this is implemented using compiler
* macros and translates to a copy operation at runtime.
*
* This changes the layout of multi-byte variables in the machine's
* memory. In most cases, you should not need to use this class.
* Probably what you are looking for is the SerializeAdapter.
* If you still decide you need this class, please read and understand
* the code first.
*
* The order of the individual bytes of the multi-byte variable is
* reversed, the byte at the highest address is moved to the lowest
* address and vice versa, same for the bytes in between.
*
* Note that the conversion is also its inversion, that is converting
* from machine to a specified endianness is the same operation as
* converting from specified to machine (I looked it up, mathematicians
* would call it an involution):
*
* X == convertBigEndian(convertBigEndian(X))
*
* Thus, there is only one function supplied to do the conversion.
*/
class EndianConverter {
private:
EndianConverter() {};
public:
/**
* Convert a typed variable between big endian and machine endian.
* Intended for plain old datatypes.
*/
template<typename T>
static T convertBigEndian(T in) {
#ifndef BYTE_ORDER_SYSTEM
#error BYTE_ORDER_SYSTEM not defined
#elif BYTE_ORDER_SYSTEM == LITTLE_ENDIAN
T tmp;
uint8_t *pointerOut = (uint8_t*) &tmp;
uint8_t *pointerIn = (uint8_t*) &in;
for (size_t count = 0; count < sizeof(T); count++) {
pointerOut[sizeof(T) - count - 1] = pointerIn[count];
}
return tmp;
#elif BYTE_ORDER_SYSTEM == BIG_ENDIAN
return in;
#else
#error Unknown Byte Order
#endif
}
/**
* convert a bytestream representing a single variable between big endian
* and machine endian.
*/
static void convertBigEndian(uint8_t *out, const uint8_t *in,
size_t size) {
#ifndef BYTE_ORDER_SYSTEM
#error BYTE_ORDER_SYSTEM not defined
#elif BYTE_ORDER_SYSTEM == LITTLE_ENDIAN
for (size_t count = 0; count < size; count++) {
out[size - count - 1] = in[count];
}
return;
#elif BYTE_ORDER_SYSTEM == BIG_ENDIAN
memcpy(out, in, size);
return;
#endif
}
/**
* Convert a typed variable between little endian and machine endian.
* Intended for plain old datatypes.
*/
template<typename T>
static T convertLittleEndian(T in) {
#ifndef BYTE_ORDER_SYSTEM
#error BYTE_ORDER_SYSTEM not defined
#elif BYTE_ORDER_SYSTEM == BIG_ENDIAN
T tmp;
uint8_t *pointerOut = (uint8_t *) &tmp;
uint8_t *pointerIn = (uint8_t *) &in;
for (size_t count = 0; count < sizeof(T); count++) {
pointerOut[sizeof(T) - count - 1] = pointerIn[count];
}
return tmp;
#elif BYTE_ORDER_SYSTEM == LITTLE_ENDIAN
return in;
#else
#error Unknown Byte Order
#endif
}
/**
* convert a bytestream representing a single variable between little endian
* and machine endian.
*/
static void convertLittleEndian(uint8_t *out, const uint8_t *in,
size_t size) {
#ifndef BYTE_ORDER_SYSTEM
#error BYTE_ORDER_SYSTEM not defined
#elif BYTE_ORDER_SYSTEM == BIG_ENDIAN
for (size_t count = 0; count < size; count++) {
out[size - count - 1] = in[count];
}
return;
#elif BYTE_ORDER_SYSTEM == LITTLE_ENDIAN
memcpy(out, in, size);
return;
#endif
}
};
#endif /* FSFW_SERIALIZE_ENDIANCONVERTER_H_ */

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#ifndef FSFW_SERIALIZE_SERIALARRAYLISTADAPTER_H_
#define FSFW_SERIALIZE_SERIALARRAYLISTADAPTER_H_
#include "SerializeIF.h"
#include "../container/ArrayList.h"
#include <utility>
/**
* Also serializes length field !
* @author baetz
* @ingroup serialize
*/
template<typename T, typename count_t = uint8_t>
class SerialArrayListAdapter : public SerializeIF {
public:
SerialArrayListAdapter(ArrayList<T, count_t> *adaptee) : adaptee(adaptee) {
}
virtual ReturnValue_t serialize(uint8_t** buffer, size_t* size,
size_t maxSize, Endianness streamEndianness) const {
return serialize(adaptee, buffer, size, maxSize, streamEndianness);
}
static ReturnValue_t serialize(const ArrayList<T, count_t>* list,
uint8_t** buffer, size_t* size, size_t maxSize,
Endianness streamEndianness) {
ReturnValue_t result = SerializeAdapter::serialize(&list->size,
buffer, size, maxSize, streamEndianness);
count_t i = 0;
while ((result == HasReturnvaluesIF::RETURN_OK) && (i < list->size)) {
result = SerializeAdapter::serialize(&list->entries[i], buffer, size,
maxSize, streamEndianness);
++i;
}
return result;
}
virtual size_t getSerializedSize() const {
return getSerializedSize(adaptee);
}
static uint32_t getSerializedSize(const ArrayList<T, count_t>* list) {
uint32_t printSize = sizeof(count_t);
count_t i = 0;
for (i = 0; i < list->size; ++i) {
printSize += SerializeAdapter::getSerializedSize(&list->entries[i]);
}
return printSize;
}
virtual ReturnValue_t deSerialize(const uint8_t** buffer, size_t* size,
Endianness streamEndianness) {
return deSerialize(adaptee, buffer, size, streamEndianness);
}
static ReturnValue_t deSerialize(ArrayList<T, count_t>* list,
const uint8_t** buffer, size_t* size,
Endianness streamEndianness) {
count_t tempSize = 0;
ReturnValue_t result = SerializeAdapter::deSerialize(&tempSize,
buffer, size, streamEndianness);
if(result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
if (tempSize > list->maxSize()) {
return SerializeIF::TOO_MANY_ELEMENTS;
}
list->size = tempSize;
count_t i = 0;
while ((result == HasReturnvaluesIF::RETURN_OK) && (i < list->size)) {
result = SerializeAdapter::deSerialize(
&list->front()[i], buffer, size,
streamEndianness);
++i;
}
return result;
}
private:
ArrayList<T, count_t> *adaptee;
};
#endif /* FSFW_SERIALIZE_SERIALARRAYLISTADAPTER_H_ */

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#include "../serialize/SerialBufferAdapter.h"
#include "../serviceinterface/ServiceInterfaceStream.h"
#include <cstring>
template<typename count_t>
SerialBufferAdapter<count_t>::SerialBufferAdapter(const uint8_t* buffer,
count_t bufferLength, bool serializeLength) :
serializeLength(serializeLength),
constBuffer(buffer), buffer(nullptr),
bufferLength(bufferLength) {}
template<typename count_t>
SerialBufferAdapter<count_t>::SerialBufferAdapter(uint8_t* buffer,
count_t bufferLength, bool serializeLength) :
serializeLength(serializeLength), constBuffer(buffer), buffer(buffer),
bufferLength(bufferLength) {}
template<typename count_t>
SerialBufferAdapter<count_t>::~SerialBufferAdapter() {
}
template<typename count_t>
ReturnValue_t SerialBufferAdapter<count_t>::serialize(uint8_t** buffer,
size_t* size, size_t maxSize, Endianness streamEndianness) const {
if (serializeLength) {
ReturnValue_t result = SerializeAdapter::serialize(&bufferLength,
buffer, size, maxSize, streamEndianness);
if(result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
}
if (*size + bufferLength > maxSize) {
return BUFFER_TOO_SHORT;
}
if (this->constBuffer != nullptr) {
std::memcpy(*buffer, this->constBuffer, bufferLength);
}
else if (this->buffer != nullptr) {
// This will propably be never reached, constBuffer should always be
// set if non-const buffer is set.
std::memcpy(*buffer, this->buffer, bufferLength);
}
else {
return HasReturnvaluesIF::RETURN_FAILED;
}
*size += bufferLength;
(*buffer) += bufferLength;
return HasReturnvaluesIF::RETURN_OK;
}
template<typename count_t>
size_t SerialBufferAdapter<count_t>::getSerializedSize() const {
if (serializeLength) {
return bufferLength + SerializeAdapter::getSerializedSize(&bufferLength);
} else {
return bufferLength;
}
}
template<typename count_t>
ReturnValue_t SerialBufferAdapter<count_t>::deSerialize(const uint8_t** buffer,
size_t* size, Endianness streamEndianness) {
if (this->buffer == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
if(serializeLength){
count_t lengthField = 0;
ReturnValue_t result = SerializeAdapter::deSerialize(&lengthField,
buffer, size, streamEndianness);
if(result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
if(lengthField > bufferLength) {
return TOO_MANY_ELEMENTS;
}
bufferLength = lengthField;
}
if (bufferLength <= *size) {
*size -= bufferLength;
std::memcpy(this->buffer, *buffer, bufferLength);
(*buffer) += bufferLength;
return HasReturnvaluesIF::RETURN_OK;
}
else {
return STREAM_TOO_SHORT;
}
}
template<typename count_t>
uint8_t * SerialBufferAdapter<count_t>::getBuffer() {
if(buffer == nullptr) {
sif::error << "Wrong access function for stored type !"
" Use getConstBuffer()." << std::endl;
return nullptr;
}
return buffer;
}
template<typename count_t>
const uint8_t * SerialBufferAdapter<count_t>::getConstBuffer() {
if(constBuffer == nullptr) {
sif::error << "SerialBufferAdapter::getConstBuffer:"
" Buffers are unitialized!" << std::endl;
return nullptr;
}
return constBuffer;
}
template<typename count_t>
void SerialBufferAdapter<count_t>::setBuffer(uint8_t* buffer,
count_t bufferLength) {
this->buffer = buffer;
this->constBuffer = buffer;
this->bufferLength = bufferLength;
}
//forward Template declaration for linker
template class SerialBufferAdapter<uint8_t>;
template class SerialBufferAdapter<uint16_t>;
template class SerialBufferAdapter<uint32_t>;
template class SerialBufferAdapter<uint64_t>;

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#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_ */

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#ifndef FSFW_SERIALIZE_SERIALFIXEDARRAYLISTADAPTER_H_
#define FSFW_SERIALIZE_SERIALFIXEDARRAYLISTADAPTER_H_
#include "SerialArrayListAdapter.h"
#include "../container/FixedArrayList.h"
/**
* @brief This adapter provides an interface for SerializeIF to serialize and
* deserialize buffers with a header containing the buffer length.
* @details
* Can be used by SerialLinkedListAdapter by declaring
* as a linked element with SerializeElement<SerialFixedArrayListAdapter<...>>.
* The sequence of objects is defined in the constructor by
* using the setStart and setNext functions.
*
* @tparam BUFFER_TYPE: Specifies the data type of the buffer
* @tparam MAX_SIZE: Specifies the maximum allowed number of elements
* (not bytes!)
* @tparam count_t: specifies the type/size of the length field which defaults
* to one byte.
* @ingroup serialize
*/
template<typename BUFFER_TYPE, uint32_t MAX_SIZE, typename count_t = uint8_t>
class SerialFixedArrayListAdapter :
public FixedArrayList<BUFFER_TYPE, MAX_SIZE, count_t>,
public SerializeIF {
public:
/**
* Constructor arguments are forwarded to FixedArrayList constructor.
* Refer to the fixed array list constructors for different options.
* @param args
*/
template<typename... Args>
SerialFixedArrayListAdapter(Args... args) :
FixedArrayList<BUFFER_TYPE, MAX_SIZE, count_t>(
std::forward<Args>(args)...){}
ReturnValue_t serialize(uint8_t** buffer, size_t* size,
size_t maxSize, Endianness streamEndianness) const {
return SerialArrayListAdapter<BUFFER_TYPE, count_t>::serialize(this,
buffer, size, maxSize, streamEndianness);
}
size_t getSerializedSize() const {
return SerialArrayListAdapter<BUFFER_TYPE, count_t>::
getSerializedSize(this);
}
ReturnValue_t deSerialize(const uint8_t** buffer, size_t* size,
Endianness streamEndianness) {
return SerialArrayListAdapter<BUFFER_TYPE, count_t>::deSerialize(this,
buffer, size, streamEndianness);
}
};
#endif /* FSFW_SERIALIZE_SERIALFIXEDARRAYLISTADAPTER_H_ */

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#ifndef FSFW_SERIALIZE_SERIALLINKEDLISTADAPTER_H_
#define FSFW_SERIALIZE_SERIALLINKEDLISTADAPTER_H_
#include "../container/SinglyLinkedList.h"
#include "SerializeAdapter.h"
#include "SerializeElement.h"
#include "SerializeIF.h"
/**
* @brief Implement the conversion of object data to data streams
* or vice-versa, using linked lists.
* @details
* An alternative to the AutoSerializeAdapter functions
* - All object members with a datatype are declared as
* SerializeElement<element_type> members inside the class
* implementing this adapter.
* - The element type can also be a SerialBufferAdapter to
* de-/serialize buffers.
* - The element type can also be a SerialFixedArrayListAdapter to
* de-/serialize buffers with a size header, which is scanned automatically.
*
* The sequence of objects is defined in the constructor by using
* the setStart and setNext functions.
*
* 1. The serialization process is done by instantiating the class and
* calling serialize after all SerializeElement entries have been set by
* using the constructor or setter functions. An additional size variable
* can be supplied which is calculated/incremented automatically.
* 2. The deserialization process is done by instantiating the class and
* supplying a buffer with the data which is converted into an object.
* The size of data to serialize can be supplied and is
* decremented in the function. Range checking is done internally.
* @author baetz
* @ingroup serialize
*/
template<typename T, typename count_t = uint8_t>
class SerialLinkedListAdapter: public SinglyLinkedList<T>, public SerializeIF {
public:
SerialLinkedListAdapter(typename LinkedElement<T>::Iterator start,
bool printCount = false) :
SinglyLinkedList<T>(start), printCount(printCount) {
}
SerialLinkedListAdapter(LinkedElement<T>* first, bool printCount = false) :
SinglyLinkedList<T>(first), printCount(printCount) {
}
SerialLinkedListAdapter(bool printCount = false) :
SinglyLinkedList<T>(), printCount(printCount) {
}
virtual ReturnValue_t serialize(uint8_t** buffer, size_t* size,
size_t maxSize, Endianness streamEndianness) const override {
if (printCount) {
count_t mySize = SinglyLinkedList<T>::getSize();
ReturnValue_t result = SerializeAdapter::serialize(&mySize,
buffer, size, maxSize, streamEndianness);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
}
return serialize(SinglyLinkedList<T>::start, buffer, size, maxSize,
streamEndianness);
}
static ReturnValue_t serialize(const LinkedElement<T>* element,
uint8_t** buffer, size_t* size, size_t maxSize,
Endianness streamEndianness) {
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
while ((result == HasReturnvaluesIF::RETURN_OK) and (element != nullptr)) {
result = element->value->serialize(buffer, size, maxSize,
streamEndianness);
element = element->getNext();
}
return result;
}
virtual size_t getSerializedSize() const override {
if (printCount) {
return SerialLinkedListAdapter<T>::getSerializedSize()
+ sizeof(count_t);
} else {
return getSerializedSize(SinglyLinkedList<T>::start);
}
}
static size_t getSerializedSize(const LinkedElement<T> *element) {
size_t size = 0;
while (element != nullptr) {
size += element->value->getSerializedSize();
element = element->getNext();
}
return size;
}
virtual ReturnValue_t deSerialize(const uint8_t** buffer, size_t* size,
Endianness streamEndianness) override {
return deSerialize(SinglyLinkedList<T>::start, buffer, size,
streamEndianness);
}
static ReturnValue_t deSerialize(LinkedElement<T>* element,
const uint8_t** buffer, size_t* size, Endianness streamEndianness) {
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
while ((result == HasReturnvaluesIF::RETURN_OK) and (element != nullptr)) {
result = element->value->deSerialize(buffer, size, streamEndianness);
element = element->getNext();
}
return result;
}
/**
* Copying is forbidden by deleting the copy constructor and the copy
* assignment operator because of the pointers to the linked list members.
* Unless the child class implements an own copy constructor or
* copy assignment operator, these operation will throw a compiler error.
* @param
*/
SerialLinkedListAdapter(const SerialLinkedListAdapter &) = delete;
SerialLinkedListAdapter& operator=(const SerialLinkedListAdapter&) = delete;
bool printCount;
};
#endif /* FSFW_SERIALIZE_SERIALLINKEDLISTADAPTER_H_ */

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#ifndef _FSFW_SERIALIZE_SERIALIZEADAPTER_H_
#define _FSFW_SERIALIZE_SERIALIZEADAPTER_H_
#include "../returnvalues/HasReturnvaluesIF.h"
#include "EndianConverter.h"
#include "SerializeIF.h"
#include <cstddef>
#include <type_traits>
/**
* @brief These adapters provides an interface to use the SerializeIF functions
* with arbitrary template objects to facilitate and simplify the
* serialization of classes with different multiple different data types
* into buffers and vice-versa.
* @details
* The correct serialization or deserialization function is chosen at
* compile time with template type deduction.
*
* @ingroup serialize
*/
class SerializeAdapter {
public:
/***
* This function can be used to serialize a trivial copy-able type or a
* child of SerializeIF.
* The right template to be called is determined in the function itself.
* For objects of non trivial copy-able type this function is almost never
* called by the user directly. Instead helpers for specific types like
* SerialArrayListAdapter or SerialLinkedListAdapter is the right choice here.
*
* @param[in] object Object to serialize, the used type is deduced from this pointer
* @param[in/out] buffer Buffer to serialize into. Will be moved by the function.
* @param[in/out] size Size of current written buffer. Will be incremented by the function.
* @param[in] maxSize Max size of Buffer
* @param[in] streamEndianness Endianness of serialized element as in 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
*/
template<typename T>
static ReturnValue_t serialize(const T *object, uint8_t **buffer,
size_t *size, size_t maxSize,
SerializeIF::Endianness streamEndianness) {
InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
return adapter.serialize(object, buffer, size, maxSize,
streamEndianness);
}
/**
* Function to return the serialized size of the object in the pointer.
* May be a trivially copy-able object or a Child of SerializeIF
*
* @param object Pointer to Object
* @return Serialized size of object
*/
template<typename T>
static size_t getSerializedSize(const T *object){
InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
return adapter.getSerializedSize(object);
}
/**
* @brief
* Deserializes a object from a given buffer of given size.
* Object Must be trivially copy-able or a child of SerializeIF.
*
* @details
* Buffer will be moved to the current read location. Size will be decreased by the function.
*
* @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
*/
template<typename T>
static ReturnValue_t deSerialize(T *object, const uint8_t **buffer,
size_t *size, SerializeIF::Endianness streamEndianness) {
InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
return adapter.deSerialize(object, buffer, size, streamEndianness);
}
private:
/**
* Internal template to deduce the right function calls at compile time
*/
template<typename T, bool> class InternalSerializeAdapter;
/**
* Template to be used if T is not a child of SerializeIF
*
* @tparam T T must be trivially_copyable
*/
template<typename T>
class InternalSerializeAdapter<T, false> {
static_assert (std::is_trivially_copyable<T>::value,
"If a type needs to be serialized it must be a child of "
"SerializeIF or trivially copy-able");
public:
static ReturnValue_t serialize(const T *object, uint8_t **buffer,
size_t *size, size_t max_size,
SerializeIF::Endianness streamEndianness) {
size_t ignoredSize = 0;
if (size == nullptr) {
size = &ignoredSize;
}
// Check remaining size is large enough and check integer
// overflow of *size
size_t newSize = sizeof(T) + *size;
if ((newSize <= max_size) and (newSize > *size)) {
T tmp;
switch (streamEndianness) {
case SerializeIF::Endianness::BIG:
tmp = EndianConverter::convertBigEndian<T>(*object);
break;
case SerializeIF::Endianness::LITTLE:
tmp = EndianConverter::convertLittleEndian<T>(*object);
break;
default:
case SerializeIF::Endianness::MACHINE:
tmp = *object;
break;
}
std::memcpy(*buffer, &tmp, sizeof(T));
*size += sizeof(T);
(*buffer) += sizeof(T);
return HasReturnvaluesIF::RETURN_OK;
} else {
return SerializeIF::BUFFER_TOO_SHORT;
}
}
ReturnValue_t deSerialize(T *object, const uint8_t **buffer,
size_t *size, SerializeIF::Endianness streamEndianness) {
T tmp;
if (*size >= sizeof(T)) {
*size -= sizeof(T);
std::memcpy(&tmp, *buffer, sizeof(T));
switch (streamEndianness) {
case SerializeIF::Endianness::BIG:
*object = EndianConverter::convertBigEndian<T>(tmp);
break;
case SerializeIF::Endianness::LITTLE:
*object = EndianConverter::convertLittleEndian<T>(tmp);
break;
default:
case SerializeIF::Endianness::MACHINE:
*object = tmp;
break;
}
*buffer += sizeof(T);
return HasReturnvaluesIF::RETURN_OK;
} else {
return SerializeIF::STREAM_TOO_SHORT;
}
}
uint32_t getSerializedSize(const T *object) {
return sizeof(T);
}
};
/**
* Template for objects that inherit from SerializeIF
*
* @tparam T A child of SerializeIF
*/
template<typename T>
class InternalSerializeAdapter<T, true> {
public:
ReturnValue_t serialize(const T *object, uint8_t **buffer, size_t *size,
size_t max_size,
SerializeIF::Endianness streamEndianness) const {
size_t ignoredSize = 0;
if (size == nullptr) {
size = &ignoredSize;
}
return object->serialize(buffer, size, max_size, streamEndianness);
}
size_t getSerializedSize(const T *object) const {
return object->getSerializedSize();
}
ReturnValue_t deSerialize(T *object, const uint8_t **buffer,
size_t *size, SerializeIF::Endianness streamEndianness) {
return object->deSerialize(buffer, size, streamEndianness);
}
};
};
#endif /* _FSFW_SERIALIZE_SERIALIZEADAPTER_H_ */

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#ifndef FSFW_SERIALIZE_SERIALIZEELEMENT_H_
#define FSFW_SERIALIZE_SERIALIZEELEMENT_H_
#include "SerializeAdapter.h"
#include "../container/SinglyLinkedList.h"
#include <utility>
/**
* @brief This class is used to mark datatypes for serialization with the
* SerialLinkedListAdapter
* @details
* Used by declaring any arbitrary datatype with SerializeElement<T> myVariable,
* inside a SerialLinkedListAdapter implementation and setting the sequence
* of objects with setNext() and setStart().
* Serialization and Deserialization is then performed automatically in
* specified sequence order.
* @ingroup serialize
*/
template<typename T>
class SerializeElement: public SerializeIF, public LinkedElement<SerializeIF> {
public:
template<typename ... Args>
SerializeElement(Args ... args) :
LinkedElement<SerializeIF>(this), entry(std::forward<Args>(args)...) {
}
SerializeElement() :
LinkedElement<SerializeIF>(this) {
}
ReturnValue_t serialize(uint8_t **buffer, size_t *size, size_t maxSize,
Endianness streamEndianness) const override {
return SerializeAdapter::serialize(&entry, buffer, size, maxSize,
streamEndianness);
}
size_t getSerializedSize() const override {
return SerializeAdapter::getSerializedSize(&entry);
}
virtual ReturnValue_t deSerialize(const uint8_t **buffer, size_t *size,
Endianness streamEndianness) override {
return SerializeAdapter::deSerialize(&entry, buffer, size,
streamEndianness);
}
operator T() {
return entry;
}
SerializeElement<T>& operator=(T newValue) {
entry = newValue;
return *this;
}
T* operator->() {
return &entry;
}
T entry;
};
#endif /* FSFW_SERIALIZE_SERIALIZEELEMENT_H_ */

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#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
};
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_ */