79 lines
1.4 KiB
Plaintext
79 lines
1.4 KiB
Plaintext
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//
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// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/json
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//
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#ifndef BOOST_JSON_IMPL_STATIC_RESOURCE_IPP
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#define BOOST_JSON_IMPL_STATIC_RESOURCE_IPP
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#include <boost/json/static_resource.hpp>
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#include <boost/json/detail/align.hpp>
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#include <boost/json/detail/except.hpp>
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#include <memory>
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BOOST_JSON_NS_BEGIN
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static_resource::
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~static_resource() noexcept = default;
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static_resource::
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static_resource(
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unsigned char* buffer,
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std::size_t size) noexcept
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: p_(buffer)
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, n_(size)
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, size_(size)
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{
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}
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void
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static_resource::
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release() noexcept
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{
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p_ = reinterpret_cast<
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char*>(p_) - (size_ - n_);
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n_ = size_;
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}
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void*
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static_resource::
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do_allocate(
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std::size_t n,
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std::size_t align)
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{
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auto p = detail::align(
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align, n, p_, n_);
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if(! p)
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detail::throw_bad_alloc(
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BOOST_JSON_SOURCE_POS);
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p_ = reinterpret_cast<char*>(p) + n;
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n_ -= n;
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return p;
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}
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void
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static_resource::
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do_deallocate(
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void*,
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std::size_t,
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std::size_t)
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{
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// do nothing
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}
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bool
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static_resource::
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do_is_equal(
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memory_resource const& mr) const noexcept
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{
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return this == &mr;
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}
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BOOST_JSON_NS_END
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#endif
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