66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
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//
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// Copyright (c) 2021 Dmitry Arkhipov (grisumbras@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_CHECKING_RESOURCE_HPP
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#define BOOST_JSON_CHECKING_RESOURCE_HPP
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#include <boost/json/storage_ptr.hpp>
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#include <map>
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#include "test_suite.hpp"
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namespace boost {
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namespace json {
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class checking_resource
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: public memory_resource
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{
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storage_ptr upstream_;
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std::map<void const*, std::pair<std::size_t, std::size_t>> allocs_;
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public:
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explicit checking_resource(storage_ptr upstream = {}) noexcept
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: upstream_(std::move(upstream))
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{}
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private:
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void* do_allocate(std::size_t size, std::size_t alignment) override
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{
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void* result = upstream_->allocate(size, alignment);
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allocs_.emplace(result, std::make_pair(size, alignment));
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return result;
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}
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void do_deallocate(void* ptr, std::size_t size, std::size_t alignment)
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override
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{
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auto const it = allocs_.find(ptr);
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if( BOOST_TEST(it != allocs_.end()) )
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{
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BOOST_TEST(size == it->second.first);
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BOOST_TEST(alignment == it->second.second);
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allocs_.erase(it);
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}
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return upstream_->deallocate(ptr, size, alignment);
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}
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bool do_is_equal(memory_resource const& other) const noexcept
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override
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{
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return this == &other;
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}
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};
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} // namespace json
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} // namespace boost
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#endif // BOOST_JSON_CHECKING_RESOURCE_HPP
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