deserialize_utils.hpp

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#pragma once
 
#include <span>
#include <utility>
#include <vector>
 
#include <sparrow/buffer/dynamic_bitset/dynamic_bitset_view.hpp>
#include <sparrow/u8_buffer.hpp>
 
#include "Message_generated.h"
 
namespace sparrow_ipc::utils
{
    [[nodiscard]] std::pair<std::uint8_t*, int64_t> get_bitmap_pointer_and_null_count(
        std::span<const uint8_t> validity_buffer_span,
        const int64_t length
    );

    [[nodiscard]] std::span<const uint8_t> get_buffer(
        const org::apache::arrow::flatbuf::RecordBatch& record_batch,
        std::span<const uint8_t> body,
        size_t& buffer_index
    );

    [[nodiscard]] std::variant<std::vector<std::uint8_t>, std::span<const std::uint8_t>> get_decompressed_buffer(
        std::span<const uint8_t> buffer_span,
        const org::apache::arrow::flatbuf::BodyCompression* compression
    );
}