. /src /detail /array_of_const_buffers.hpp
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1   // 1   //
2   // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com) 2   // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
3   // Copyright (c) 2025 Mohammad Nejati 3   // Copyright (c) 2025 Mohammad Nejati
4   // 4   //
5   // Distributed under the Boost Software License, Version 1.0. (See accompanying 5   // Distributed under the Boost Software License, Version 1.0. (See accompanying
6   // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 6   // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7   // 7   //
8   // Official repository: https://github.com/cppalliance/http 8   // Official repository: https://github.com/cppalliance/http
9   // 9   //
10   10  
11   #ifndef BOOST_HTTP_DETAIL_ARRAY_OF_BUFFERS_HPP 11   #ifndef BOOST_HTTP_DETAIL_ARRAY_OF_BUFFERS_HPP
12   #define BOOST_HTTP_DETAIL_ARRAY_OF_BUFFERS_HPP 12   #define BOOST_HTTP_DETAIL_ARRAY_OF_BUFFERS_HPP
13   13  
14   #include <boost/assert.hpp> 14   #include <boost/assert.hpp>
15   #include <boost/capy/buffers.hpp> 15   #include <boost/capy/buffers.hpp>
16   16  
17   #include <cstdint> 17   #include <cstdint>
18   18  
19   namespace boost { 19   namespace boost {
20   namespace http { 20   namespace http {
21   namespace detail { 21   namespace detail {
22   22  
23   class array_of_const_buffers 23   class array_of_const_buffers
24   { 24   {
25   public: 25   public:
26   using value_type = capy::const_buffer; 26   using value_type = capy::const_buffer;
27   using iterator = value_type*; 27   using iterator = value_type*;
28   using const_iterator = iterator; 28   using const_iterator = iterator;
29   29  
HITCBC 30   158 array_of_const_buffers() = default; 30   158 array_of_const_buffers() = default;
31   array_of_const_buffers( 31   array_of_const_buffers(
32   array_of_const_buffers const&) = default; 32   array_of_const_buffers const&) = default;
33   array_of_const_buffers& 33   array_of_const_buffers&
34   operator=(array_of_const_buffers const&) = default; 34   operator=(array_of_const_buffers const&) = default;
35   35  
36   array_of_const_buffers( 36   array_of_const_buffers(
37   value_type* p, 37   value_type* p,
38   std::uint16_t n) noexcept; 38   std::uint16_t n) noexcept;
39   39  
40   bool 40   bool
HITCBC 41   1853 empty() const noexcept 41   1853 empty() const noexcept
42   { 42   {
HITCBC 43   1853 return size_ == 0; 43   1853 return size_ == 0;
44   } 44   }
45   45  
46   std::uint16_t 46   std::uint16_t
47   size() const noexcept 47   size() const noexcept
48   { 48   {
49   return size_; 49   return size_;
50   } 50   }
51   51  
52   std::uint16_t 52   std::uint16_t
53   max_size() const noexcept 53   max_size() const noexcept
54   { 54   {
55   return cap_; 55   return cap_;
56   } 56   }
57   57  
58   std::uint16_t 58   std::uint16_t
59   capacity() const noexcept 59   capacity() const noexcept
60   { 60   {
61   return cap_ - size_; 61   return cap_ - size_;
62   } 62   }
63   63  
64   iterator 64   iterator
HITCBC 65   534 begin() const noexcept 65   534 begin() const noexcept
66   { 66   {
HITCBC 67   534 return base_ + pos_; 67   534 return base_ + pos_;
68   } 68   }
69   69  
70   iterator 70   iterator
HITCBC 71   266 end() const noexcept 71   266 end() const noexcept
72   { 72   {
HITCBC 73   266 return base_ + pos_ + size_; 73   266 return base_ + pos_ + size_;
74   } 74   }
75   75  
76   value_type& 76   value_type&
HITCBC 77   132 operator[]( 77   132 operator[](
78   std::uint16_t i) const noexcept 78   std::uint16_t i) const noexcept
79   { 79   {
HITCBC 80   132 BOOST_ASSERT(i < cap_ - pos_); 80   132 BOOST_ASSERT(i < cap_ - pos_);
HITCBC 81   132 return base_[i + pos_]; 81   132 return base_[i + pos_];
82   } 82   }
83   83  
84   void 84   void
85   consume(std::size_t n); 85   consume(std::size_t n);
86   86  
87   void 87   void
88   reset(std::uint16_t n) noexcept; 88   reset(std::uint16_t n) noexcept;
89   89  
90   void 90   void
91   slide_to_front() noexcept; 91   slide_to_front() noexcept;
92   92  
93   void append(value_type) noexcept; 93   void append(value_type) noexcept;
94   94  
95   private: 95   private:
96   value_type* base_ = nullptr; 96   value_type* base_ = nullptr;
97   std::uint16_t cap_ = 0; 97   std::uint16_t cap_ = 0;
98   std::uint16_t pos_ = 0; 98   std::uint16_t pos_ = 0;
99   std::uint16_t size_ = 0; 99   std::uint16_t size_ = 0;
100   }; 100   };
101   101  
102   } // detail 102   } // detail
103   } // http 103   } // http
104   } // boost 104   } // boost
105   105  
106   #endif 106   #endif