124 lines
3.5 KiB
C++
124 lines
3.5 KiB
C++
#ifndef SERIALIZEADAPTER_H_
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#define SERIALIZEADAPTER_H_
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#include "../container/IsDerivedFrom.h"
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#include "../returnvalues/HasReturnvaluesIF.h"
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#include "EndianConverter.h"
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#include "SerializeIF.h"
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#include <string.h>
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/**
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* \ingroup serialize
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*/
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class SerializeAdapter {
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public:
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template<typename T>
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static ReturnValue_t serialize(const T *object, uint8_t **buffer,
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size_t *size, size_t maxSize, SerializeIF::Endianness streamEndianness) {
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InternalSerializeAdapter<T, IsDerivedFrom<T, SerializeIF>::Is> adapter;
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return adapter.serialize(object, buffer, size, maxSize,
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streamEndianness);
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}
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template<typename T>
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static uint32_t getSerializedSize(const T *object) {
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InternalSerializeAdapter<T, IsDerivedFrom<T, SerializeIF>::Is> adapter;
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return adapter.getSerializedSize(object);
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}
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template<typename T>
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static ReturnValue_t deSerialize(T *object, const uint8_t **buffer,
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size_t *size, SerializeIF::Endianness streamEndianness) {
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InternalSerializeAdapter<T, IsDerivedFrom<T, SerializeIF>::Is> adapter;
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return adapter.deSerialize(object, buffer, size, streamEndianness);
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}
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private:
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template<typename T, int>
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class InternalSerializeAdapter {
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public:
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static ReturnValue_t serialize(const T *object, uint8_t **buffer,
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size_t *size, size_t max_size, SerializeIF::Endianness streamEndianness) {
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size_t ignoredSize = 0;
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if (size == NULL) {
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size = &ignoredSize;
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}
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//TODO check integer overflow of *size
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if (sizeof(T) + *size <= max_size) {
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T tmp;
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switch (streamEndianness) {
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case SerializeIF::Endianness::BIG:
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tmp = EndianConverter::convertBigEndian<T>(*object);
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break;
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case SerializeIF::Endianness::LITTLE:
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tmp = EndianConverter::convertLittleEndian<T>(*object);
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break;
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default:
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case SerializeIF::Endianness::MACHINE:
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tmp = *object;
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break;
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}
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memcpy(*buffer, &tmp, sizeof(T));
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*size += sizeof(T);
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(*buffer) += sizeof(T);
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return HasReturnvaluesIF::RETURN_OK;
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} else {
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return SerializeIF::BUFFER_TOO_SHORT;
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}
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}
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ReturnValue_t deSerialize(T *object, const uint8_t **buffer,
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size_t *size, SerializeIF::Endianness streamEndianness) {
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T tmp;
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if (*size >= sizeof(T)) {
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*size -= sizeof(T);
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memcpy(&tmp, *buffer, sizeof(T));
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switch (streamEndianness) {
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case SerializeIF::Endianness::BIG:
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*object = EndianConverter::convertBigEndian<T>(tmp);
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break;
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case SerializeIF::Endianness::LITTLE:
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*object = EndianConverter::convertLittleEndian<T>(tmp);
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break;
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default:
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case SerializeIF::Endianness::MACHINE:
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*object = tmp;
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break;
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}
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*buffer += sizeof(T);
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return HasReturnvaluesIF::RETURN_OK;
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} else {
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return SerializeIF::STREAM_TOO_SHORT;
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}
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}
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uint32_t getSerializedSize(const T *object) {
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return sizeof(T);
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}
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};
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template<typename T>
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class InternalSerializeAdapter<T, 1> {
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public:
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ReturnValue_t serialize(const T *object, uint8_t **buffer,
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size_t *size, size_t max_size,
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SerializeIF::Endianness streamEndianness) const {
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size_t ignoredSize = 0;
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if (size == NULL) {
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size = &ignoredSize;
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}
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return object->serialize(buffer, size, max_size, streamEndianness);
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}
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uint32_t getSerializedSize(const T *object) const {
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return object->getSerializedSize();
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}
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ReturnValue_t deSerialize(T *object, const uint8_t **buffer,
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size_t *size, SerializeIF::Endianness streamEndianness) {
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return object->deSerialize(buffer, size, streamEndianness);
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}
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};
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};
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#endif /* SERIALIZEADAPTER_H_ */
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