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|---|---|---|---|
| 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 | #include <boost/buffers/buffer_pair.hpp> | ||
| 11 | #include <boost/buffers/slice.hpp> | ||
| 12 | |||
| 13 | namespace boost { | ||
| 14 | namespace buffers { | ||
| 15 | |||
| 16 | void | ||
| 17 | 6529856 | tag_invoke( | |
| 18 | slice_tag const&, | ||
| 19 | const_buffer_pair& bs, | ||
| 20 | slice_how how, | ||
| 21 | std::size_t n) noexcept | ||
| 22 | { | ||
| 23 |
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6529856 | switch(how) |
| 24 | { | ||
| 25 | 2993536 | case slice_how::remove_prefix: | |
| 26 | { | ||
| 27 | 2993536 | auto p = &bs[0]; | |
| 28 |
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2993536 | if(n < p->size()) |
| 29 | { | ||
| 30 | 1834873 | remove_prefix(*p, n); | |
| 31 | 1834873 | return; | |
| 32 | } | ||
| 33 | 1158663 | n -= p->size(); | |
| 34 | 1158663 | *p = bs[1]; | |
| 35 | 1158663 | bs[1] = {}; | |
| 36 | 1158663 | remove_prefix(*p, n); | |
| 37 | 1158663 | return; | |
| 38 | } | ||
| 39 | |||
| 40 | 3536320 | case slice_how::keep_prefix: | |
| 41 | { | ||
| 42 | 3536320 | auto p = &bs[0]; | |
| 43 |
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3536320 | if(n <= p->size()) |
| 44 | { | ||
| 45 | 2718075 | keep_prefix(*p, n); | |
| 46 | 2718075 | bs[1] = {}; | |
| 47 | 2718075 | return; | |
| 48 | } | ||
| 49 | 818245 | n -= p->size(); | |
| 50 | 818245 | ++p; | |
| 51 | 818245 | keep_prefix(*p, n); | |
| 52 | 818245 | return; | |
| 53 | } | ||
| 54 | } | ||
| 55 | } | ||
| 56 | |||
| 57 | void | ||
| 58 | 25408 | tag_invoke( | |
| 59 | slice_tag const&, | ||
| 60 | mutable_buffer_pair& bs, | ||
| 61 | slice_how how, | ||
| 62 | std::size_t n) noexcept | ||
| 63 | { | ||
| 64 |
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25408 | switch(how) |
| 65 | { | ||
| 66 | 11648 | case slice_how::remove_prefix: | |
| 67 | { | ||
| 68 | 11648 | auto p = &bs[0]; | |
| 69 |
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11648 | if(n < p->size()) |
| 70 | { | ||
| 71 | 6425 | remove_prefix(*p, n); | |
| 72 | 6425 | return; | |
| 73 | } | ||
| 74 | 5223 | n -= p->size(); | |
| 75 | 5223 | *p = bs[1]; | |
| 76 | 5223 | bs[1] = {}; | |
| 77 | 5223 | remove_prefix(*p, n); | |
| 78 | 5223 | return; | |
| 79 | } | ||
| 80 | |||
| 81 | 13760 | case slice_how::keep_prefix: | |
| 82 | { | ||
| 83 | 13760 | auto p = &bs[0]; | |
| 84 |
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13760 | if(n <= p->size()) |
| 85 | { | ||
| 86 | 9883 | keep_prefix(*p, n); | |
| 87 | 9883 | bs[1] = {}; | |
| 88 | 9883 | return; | |
| 89 | } | ||
| 90 | 3877 | n -= p->size(); | |
| 91 | 3877 | ++p; | |
| 92 | 3877 | keep_prefix(*p, n); | |
| 93 | 3877 | return; | |
| 94 | } | ||
| 95 | } | ||
| 96 | } | ||
| 97 | |||
| 98 | } // buffers | ||
| 99 | } // boost | ||
| 100 |