49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
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#ifndef PROXY_HEADER_HPP_JWTV3BDT
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#define PROXY_HEADER_HPP_JWTV3BDT
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#include <boost/range/iterator_range.hpp>
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#include <vanetza/access/access_category.hpp>
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#include <cstdint>
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namespace vanetza
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{
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#ifndef _MSC_VER
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// GCC and Clang support packed attribute
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#define PACKED_STRUCT(name, block) struct name { block } __attribute__((__packed__));
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#else
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// MSVC variant
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#define PACKED_STRUCT(name, block) \
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__pragma(pack(push, 1)) \
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struct name { block }; \
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__pragma(pack(pop))
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#endif
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PACKED_STRUCT(ProxyHeader,
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/** offset in bytes to payload's first byte, counting from packet start */
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uint16_t payload_offset;
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/** length of payload in bytes */
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uint32_t payload_size;
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/** signal power in dBm, fixed point format 8.8 = trunc(double * 256) */
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int16_t signal_power;
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/** access category (transmission only) */
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uint8_t access_category;
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)
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static_assert(sizeof(ProxyHeader) == 9, "ProxyHeader has invalid size");
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double get_signal_power(const ProxyHeader&);
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void set_signal_power(ProxyHeader&, double dbm);
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access::AccessCategory get_access_category(const ProxyHeader&);
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void set_access_category(ProxyHeader&, access::AccessCategory);
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boost::iterator_range<const uint8_t*> get_payload(const ProxyHeader&, std::size_t);
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void set_payload(ProxyHeader&, std::size_t);
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} // namespace vanetza
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#endif /* PROXY_HEADER_HPP_JWTV3BDT */
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