| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2022 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/boostorg/url | ||
| 8 | // | ||
| 9 | |||
| 10 | #include <boost/url/detail/config.hpp> | ||
| 11 | #include <boost/url/grammar/detail/recycled.hpp> | ||
| 12 | #include <cstdlib> | ||
| 13 | #include <utility> | ||
| 14 | #include <atomic> | ||
| 15 | |||
| 16 | #ifdef BOOST_URL_REPORT | ||
| 17 | # ifdef _MSC_VER | ||
| 18 | # include <intrin.h> | ||
| 19 | # endif | ||
| 20 | #endif | ||
| 21 | |||
| 22 | namespace boost { | ||
| 23 | namespace urls { | ||
| 24 | namespace grammar { | ||
| 25 | namespace detail { | ||
| 26 | |||
| 27 | struct all_reports | ||
| 28 | { | ||
| 29 | // current count | ||
| 30 | std::atomic<std::size_t> count = {0}; | ||
| 31 | |||
| 32 | // current bytes | ||
| 33 | std::atomic<std::size_t> bytes = {0}; | ||
| 34 | |||
| 35 | // highest total ptr count | ||
| 36 | std::atomic<std::size_t> count_max = {0}; | ||
| 37 | |||
| 38 | // highest total bytes | ||
| 39 | std::atomic<std::size_t> bytes_max = {0}; | ||
| 40 | |||
| 41 | // largest single allocation | ||
| 42 | std::atomic<std::size_t> alloc_max = {0}; | ||
| 43 | |||
| 44 | 72 | ~all_reports() | |
| 45 | { | ||
| 46 | // breakpoint here to view report | ||
| 47 | #ifdef BOOST_URL_REPORT | ||
| 48 | # ifdef _MSC_VER | ||
| 49 | if(count_max > 0) | ||
| 50 | ::__debugbreak(); | ||
| 51 | # endif | ||
| 52 | #endif | ||
| 53 | 72 | } | |
| 54 | }; | ||
| 55 | |||
| 56 | static all_reports all_reports_; | ||
| 57 | } // detail | ||
| 58 | |||
| 59 | namespace see_below { | ||
| 60 | void | ||
| 61 | 1 | recycled_add_impl( | |
| 62 | std::size_t n) noexcept | ||
| 63 | { | ||
| 64 | 1 | auto& a = detail::all_reports_; | |
| 65 | |||
| 66 | // LCOV_EXCL_START | ||
| 67 | /* | ||
| 68 | * We can't guarantee coverage | ||
| 69 | * exercise of this path. | ||
| 70 | */ | ||
| 71 | − | std::size_t new_count = ++a.count; | |
| 72 | − | std::size_t old_count_max = a.count_max; | |
| 73 | − | while ( | |
| 74 | − | old_count_max < new_count && | |
| 75 | − | !a.count_max.compare_exchange_weak( | |
| 76 | old_count_max, new_count)) | ||
| 77 | {} | ||
| 78 | |||
| 79 | − | std::size_t new_bytes = a.bytes.fetch_add(n) + n; | |
| 80 | − | std::size_t old_bytes_max = a.bytes_max; | |
| 81 | − | while ( | |
| 82 | − | old_bytes_max < new_bytes && | |
| 83 | − | !a.bytes_max.compare_exchange_weak( | |
| 84 | old_bytes_max, new_bytes)) | ||
| 85 | {} | ||
| 86 | |||
| 87 | − | std::size_t old_alloc_max = a.alloc_max; | |
| 88 | − | while ( | |
| 89 | − | old_alloc_max < n && | |
| 90 | − | !a.alloc_max.compare_exchange_weak( | |
| 91 | old_alloc_max, n)) | ||
| 92 | {} | ||
| 93 | // LCOV_EXCL_STOP | ||
| 94 | 1 | } | |
| 95 | |||
| 96 | void | ||
| 97 | 1 | recycled_remove_impl( | |
| 98 | std::size_t n) noexcept | ||
| 99 | { | ||
| 100 | 1 | detail::all_reports_.count--; | |
| 101 | 1 | detail::all_reports_.bytes-=n; | |
| 102 | 1 | } | |
| 103 | } // see_below | ||
| 104 | } // grammar | ||
| 105 | } // urls | ||
| 106 | } // boost | ||
| 107 |