| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2023 Vinnie Falco (vinnie.falco@gmail.com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/cppalliance/buffers | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_BUFFERS_BUFFER_SIZE_HPP | ||
| 11 | #define BOOST_BUFFERS_BUFFER_SIZE_HPP | ||
| 12 | |||
| 13 | #include <boost/buffers/detail/config.hpp> | ||
| 14 | #include <boost/buffers/const_buffer.hpp> | ||
| 15 | #include <boost/buffers/range.hpp> | ||
| 16 | #include <boost/buffers/tag_invoke.hpp> | ||
| 17 | #include <boost/buffers/type_traits.hpp> | ||
| 18 | |||
| 19 | namespace boost { | ||
| 20 | namespace buffers { | ||
| 21 | |||
| 22 | template<class Buffers> | ||
| 23 | std::size_t | ||
| 24 | 1147900 | tag_invoke( | |
| 25 | size_tag const&, | ||
| 26 | Buffers const& bs) noexcept | ||
| 27 | { | ||
| 28 | 1147900 | std::size_t n = 0; | |
| 29 |
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2853893 | for(const_buffer b : range(bs)) |
| 30 | 1705993 | n += b.size(); | |
| 31 | 1147900 | return n; | |
| 32 | } | ||
| 33 | |||
| 34 | namespace detail { | ||
| 35 | |||
| 36 | struct buffer_size_impl | ||
| 37 | { | ||
| 38 | template<class Buffers> | ||
| 39 | std::size_t | ||
| 40 | 857994 | operator()( | |
| 41 | Buffers const& bs) const noexcept | ||
| 42 | { | ||
| 43 | // If you get a compile error here it | ||
| 44 | // means that your type does not meet | ||
| 45 | // the requirements. | ||
| 46 | static_assert( | ||
| 47 | is_const_buffer_sequence<Buffers>::value, | ||
| 48 | "Type requirements not met."); | ||
| 49 | |||
| 50 | 857994 | return tag_invoke(size_tag{}, bs); | |
| 51 | } | ||
| 52 | }; | ||
| 53 | |||
| 54 | } // detail | ||
| 55 | |||
| 56 | /** Return the total octets in a buffer sequence | ||
| 57 | |||
| 58 | @par Constraints | ||
| 59 | @code | ||
| 60 | is_const_buffer_sequence< ConstBufferSequence >::value == true | ||
| 61 | @endcode | ||
| 62 | */ | ||
| 63 | constexpr detail::buffer_size_impl buffer_size{}; | ||
| 64 | |||
| 65 | } // buffers | ||
| 66 | } // boost | ||
| 67 | |||
| 68 | #endif | ||
| 69 |