| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2021 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 | #include <boost/http_proto/header_limits.hpp> | ||
| 11 | #include <boost/http_proto/detail/except.hpp> | ||
| 12 | #include <boost/http_proto/detail/header.hpp> | ||
| 13 | |||
| 14 | namespace boost { | ||
| 15 | namespace http_proto { | ||
| 16 | |||
| 17 | std::size_t | ||
| 18 | 31 | header_limits:: | |
| 19 | valid_space_needed() const | ||
| 20 | { | ||
| 21 | /* | ||
| 22 | // "HTTP/1.1 200 OK\r\n\r\n" = 19 | ||
| 23 | // "X / HTTP/1.1\r\n" = 14 | ||
| 24 | // "HTTP/1.1 200\r\n" = 14 | ||
| 25 | // "X:\r\n" = 4 | ||
| 26 | |||
| 27 | // make sure `size` is big enough | ||
| 28 | // to hold the largest default buffer: | ||
| 29 | //if( max_size < 19) | ||
| 30 | //max_size = 19; | ||
| 31 | |||
| 32 | // max_size too small | ||
| 33 | if( max_size < 19) | ||
| 34 | detail::throw_invalid_argument(); | ||
| 35 | |||
| 36 | // max_size too large | ||
| 37 | if( max_size > | ||
| 38 | BOOST_HTTP_PROTO_MAX_HEADER) | ||
| 39 | detail::throw_invalid_argument(); | ||
| 40 | |||
| 41 | // max_start_line too small | ||
| 42 | if( max_start_line < 14) | ||
| 43 | detail::throw_invalid_argument(); | ||
| 44 | |||
| 45 | // max_start_line too large | ||
| 46 | if( max_start_line > | ||
| 47 | max_size - 2) | ||
| 48 | detail::throw_invalid_argument(); | ||
| 49 | |||
| 50 | // max_field too small | ||
| 51 | if( max_field < 4) | ||
| 52 | detail::throw_invalid_argument(); | ||
| 53 | |||
| 54 | // max_field too large | ||
| 55 | if( max_field > | ||
| 56 | max_size) | ||
| 57 | detail::throw_invalid_argument(); | ||
| 58 | |||
| 59 | // max_fields too large | ||
| 60 | if( max_fields > | ||
| 61 | max_size / 4) | ||
| 62 | detail::throw_invalid_argument(); | ||
| 63 | */ | ||
| 64 | static constexpr auto Align = | ||
| 65 | alignof(detail::header::entry); | ||
| 66 | // round up to alignof(A) | ||
| 67 | 31 | return Align * ( | |
| 68 | 31 | (max_size + Align - 1) / Align) + ( | |
| 69 | 31 | max_fields * sizeof( | |
| 70 | 31 | detail::header::entry)); | |
| 71 | } | ||
| 72 | |||
| 73 | } // http_proto | ||
| 74 | } // boost | ||
| 75 |