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|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2019 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/http_proto | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_HTTP_PROTO_DETAIL_IMPL_FLAT_BUFFER_IPP | ||
| 11 | #define BOOST_HTTP_PROTO_DETAIL_IMPL_FLAT_BUFFER_IPP | ||
| 12 | |||
| 13 | #include <boost/http_proto/detail/flat_buffer.hpp> | ||
| 14 | #include <boost/http_proto/detail/except.hpp> | ||
| 15 | #include <boost/assert.hpp> | ||
| 16 | |||
| 17 | namespace boost { | ||
| 18 | namespace http_proto { | ||
| 19 | namespace detail { | ||
| 20 | |||
| 21 | 770 | flat_buffer:: | |
| 22 | flat_buffer( | ||
| 23 | void* data, | ||
| 24 | std::size_t capacity, | ||
| 25 | 770 | std::size_t initial_size) noexcept | |
| 26 | : data_(reinterpret_cast< | ||
| 27 | unsigned char*>(data)) | ||
| 28 | , cap_(capacity) | ||
| 29 | 770 | , in_size_(initial_size) | |
| 30 | { | ||
| 31 |
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770 | BOOST_ASSERT(in_size_ <= cap_); |
| 32 | 770 | } | |
| 33 | |||
| 34 | bool | ||
| 35 | ✗ | flat_buffer:: | |
| 36 | empty() const noexcept | ||
| 37 | { | ||
| 38 | ✗ | return in_size_ == 0; | |
| 39 | } | ||
| 40 | |||
| 41 | std::size_t | ||
| 42 | 7173 | flat_buffer:: | |
| 43 | size() const noexcept | ||
| 44 | { | ||
| 45 | 7173 | return in_size_; | |
| 46 | } | ||
| 47 | |||
| 48 | std::size_t | ||
| 49 | ✗ | flat_buffer:: | |
| 50 | capacity() const noexcept | ||
| 51 | { | ||
| 52 | ✗ | return cap_; | |
| 53 | } | ||
| 54 | |||
| 55 | const_buffer | ||
| 56 | 33 | flat_buffer:: | |
| 57 | data() const noexcept | ||
| 58 | { | ||
| 59 | return { | ||
| 60 | 33 | data_ + in_pos_, | |
| 61 | 33 | in_size_ }; | |
| 62 | } | ||
| 63 | |||
| 64 | mutable_buffer | ||
| 65 | 3185 | flat_buffer:: | |
| 66 | prepare(std::size_t n) | ||
| 67 | { | ||
| 68 | // n exceeds available space | ||
| 69 |
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3185 | if(n > cap_ - in_size_) |
| 70 | ✗ | detail::throw_invalid_argument(); | |
| 71 | |||
| 72 | 3185 | out_size_ = n; | |
| 73 | return { | ||
| 74 | 3185 | data_ + in_pos_ + in_size_, | |
| 75 | 3185 | n }; | |
| 76 | } | ||
| 77 | |||
| 78 | void | ||
| 79 | 3185 | flat_buffer:: | |
| 80 | commit(std::size_t n) | ||
| 81 | { | ||
| 82 | // n exceeds output size | ||
| 83 |
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3185 | if(n > out_size_) |
| 84 | ✗ | detail::throw_invalid_argument(); | |
| 85 | |||
| 86 | 3185 | in_size_ += n; | |
| 87 | 3185 | out_size_ = 0; | |
| 88 | 3185 | } | |
| 89 | |||
| 90 | void | ||
| 91 | 33 | flat_buffer:: | |
| 92 | consume(std::size_t n) noexcept | ||
| 93 | { | ||
| 94 |
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33 | BOOST_ASSERT(out_size_ == 0); |
| 95 | |||
| 96 | // n exceeds input size | ||
| 97 |
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33 | if(n > in_size_) |
| 98 | ✗ | detail::throw_invalid_argument(); | |
| 99 | |||
| 100 | 33 | in_size_ -= n; | |
| 101 |
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33 | if(in_size_ > 0) |
| 102 | ✗ | in_pos_ += n; | |
| 103 | else | ||
| 104 | 33 | in_pos_ = 0; | |
| 105 | 33 | } | |
| 106 | |||
| 107 | } // detail | ||
| 108 | } // http_proto | ||
| 109 | } // boost | ||
| 110 | |||
| 111 | #endif | ||
| 112 |