mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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69 lines
2.8 KiB
C++
69 lines
2.8 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <vapours/common.hpp>
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#include <vapours/assert.hpp>
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#include <vapours/util/util_fixed_tree.hpp>
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namespace ams::util {
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template<typename Key, typename Value, typename Compare = std::less<Key>, size_t BufferAlignment = 8>
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class FixedMap {
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private:
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using KeyValuePair = std::pair<Key const, Value>;
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struct LessTypeForMap {
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constexpr ALWAYS_INLINE bool operator()(const KeyValuePair &lhs, const KeyValuePair &rhs) const {
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return Compare{}(lhs.first, rhs.first);
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}
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};
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using TreeType = ::ams::util::FixedTree<KeyValuePair, LessTypeForMap, KeyValuePair, BufferAlignment>;
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using iterator = typename TreeType::iterator;
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using const_iterator = typename TreeType::const_iterator;
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public:
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static constexpr size_t GetRequiredMemorySize(size_t num_elements) {
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return TreeType::GetRequiredMemorySize(num_elements);
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}
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private:
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TreeType m_tree;
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public:
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FixedMap() : m_tree() { /* ... */ }
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void Initialize(size_t num_elements, void *buffer, size_t buffer_size) {
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return m_tree.Initialize(num_elements, buffer, buffer_size);
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}
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ALWAYS_INLINE iterator begin() { return m_tree.begin(); }
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ALWAYS_INLINE const_iterator begin() const { return m_tree.begin(); }
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ALWAYS_INLINE iterator end() { return m_tree.end(); }
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ALWAYS_INLINE const_iterator end() const { return m_tree.end(); }
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ALWAYS_INLINE bool erase(const Key &key) { const KeyValuePair pair(key, Value{}); return m_tree.erase(pair); }
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ALWAYS_INLINE iterator find(const Key &key) { const KeyValuePair pair(key, Value{}); return m_tree.find(pair); }
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ALWAYS_INLINE const_iterator find(const Key &key) const { const KeyValuePair pair(key, Value{}); return m_tree.find(pair); }
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ALWAYS_INLINE std::pair<iterator, bool> insert(const KeyValuePair &pair) { return m_tree.insert(pair); }
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ALWAYS_INLINE size_t size() const { return m_tree.size(); }
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ALWAYS_INLINE void clear() { return m_tree.clear(); }
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};
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}
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