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

130 lines
3.5 KiB
C++

#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>;