60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
#ifndef FSFW_SRC_FSFW_CFDP_PDU_VARLENFIELD_H_
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#define FSFW_SRC_FSFW_CFDP_PDU_VARLENFIELD_H_
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#include <cstddef>
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#include <cstdint>
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#include "fsfw/cfdp/definitions.h"
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#include "fsfw/serialize/SerializeIF.h"
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#include "fsfw/util/UnsignedByteField.h"
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namespace cfdp {
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class VarLenField : public SerializeIF {
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public:
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union LengthFieldLen {
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uint8_t oneByte;
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uint16_t twoBytes;
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uint32_t fourBytes;
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uint64_t eightBytes;
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};
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VarLenField();
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template <typename T>
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explicit VarLenField(UnsignedByteField<T> byteField);
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VarLenField(cfdp::WidthInBytes width, size_t value);
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bool operator==(const VarLenField &other) const;
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bool operator<(const VarLenField &other) const;
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ReturnValue_t setValue(cfdp::WidthInBytes, size_t value);
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ReturnValue_t serialize(uint8_t **buffer, size_t *size, size_t maxSize,
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Endianness streamEndianness) const override;
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[[nodiscard]] size_t getSerializedSize() const override;
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ReturnValue_t deSerialize(cfdp::WidthInBytes width, const uint8_t **buffer, size_t *size,
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Endianness streamEndianness);
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[[nodiscard]] cfdp::WidthInBytes getWidth() const;
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[[nodiscard]] size_t getValue() const;
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private:
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ReturnValue_t deSerialize(const uint8_t **buffer, size_t *size,
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Endianness streamEndianness) override;
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cfdp::WidthInBytes width;
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LengthFieldLen value{};
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};
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template <typename T>
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cfdp::VarLenField::VarLenField(UnsignedByteField<T> byteField)
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: width(static_cast<WidthInBytes>(sizeof(T))) {
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static_assert((sizeof(T) % 2) == 0);
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setValue(width, byteField.getValue());
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}
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} // namespace cfdp
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#endif /* FSFW_SRC_FSFW_CFDP_PDU_VARLENFIELD_H_ */
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