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