impl/static_resource.ipp
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60.0% Functions (3/5)
100.0% Branches (2/2)
impl/static_resource.ipp
| Line | Branch | Hits | Source Code |
|---|---|---|---|
| 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/boostorg/json | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_JSON_IMPL_STATIC_RESOURCE_IPP | ||
| 11 | #define BOOST_JSON_IMPL_STATIC_RESOURCE_IPP | ||
| 12 | |||
| 13 | #include <boost/json/static_resource.hpp> | ||
| 14 | #include <boost/throw_exception.hpp> | ||
| 15 | #include <boost/align/align.hpp> | ||
| 16 | #include <memory> | ||
| 17 | |||
| 18 | namespace boost { | ||
| 19 | namespace json { | ||
| 20 | |||
| 21 | 7 | static_resource:: | |
| 22 | static_resource( | ||
| 23 | unsigned char* buffer, | ||
| 24 | 7 | std::size_t size) noexcept | |
| 25 | 7 | : p_(buffer) | |
| 26 | 7 | , n_(size) | |
| 27 | 7 | , size_(size) | |
| 28 | { | ||
| 29 | 7 | } | |
| 30 | |||
| 31 | void | ||
| 32 | 1 | static_resource:: | |
| 33 | release() noexcept | ||
| 34 | { | ||
| 35 | 1 | p_ = reinterpret_cast< | |
| 36 | 1 | char*>(p_) - (size_ - n_); | |
| 37 | 1 | n_ = size_; | |
| 38 | 1 | } | |
| 39 | |||
| 40 | void* | ||
| 41 | 10 | static_resource:: | |
| 42 | do_allocate( | ||
| 43 | std::size_t n, | ||
| 44 | std::size_t align) | ||
| 45 | { | ||
| 46 | 10 | auto p = alignment::align( | |
| 47 | 10 | align, n, p_, n_); | |
| 48 |
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10 | if(! p) |
| 49 | 4 | throw_exception( std::bad_alloc(), BOOST_CURRENT_LOCATION ); | |
| 50 | 8 | p_ = reinterpret_cast<char*>(p) + n; | |
| 51 | 8 | n_ -= n; | |
| 52 | 8 | return p; | |
| 53 | } | ||
| 54 | |||
| 55 | void | ||
| 56 | ✗ | static_resource:: | |
| 57 | do_deallocate( | ||
| 58 | void*, | ||
| 59 | std::size_t, | ||
| 60 | std::size_t) | ||
| 61 | { | ||
| 62 | // do nothing | ||
| 63 | ✗ | } | |
| 64 | |||
| 65 | bool | ||
| 66 | ✗ | static_resource:: | |
| 67 | do_is_equal( | ||
| 68 | memory_resource const& mr) const noexcept | ||
| 69 | { | ||
| 70 | ✗ | return this == &mr; | |
| 71 | } | ||
| 72 | |||
| 73 | } // namespace json | ||
| 74 | } // namespace boost | ||
| 75 | |||
| 76 | #endif | ||
| 77 |