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85 lines
3.4 KiB
85 lines
3.4 KiB
/****************************************************************************
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Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
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http://www.cocos.com
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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#include "Handle.h"
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#include "base/Macros.h"
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#include "base/std/container/unordered_map.h"
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namespace cc {
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namespace framegraph {
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template <typename KeyType, typename ValueType, ValueType InvalidValue>
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class Blackboard final {
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public:
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Blackboard() = default;
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~Blackboard() = default;
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Blackboard(const Blackboard &) = delete;
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Blackboard(Blackboard &&) noexcept = delete;
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Blackboard &operator=(const Blackboard &) = delete;
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Blackboard &operator=(Blackboard &&) noexcept = delete;
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inline ValueType &operator[](const KeyType &name) noexcept;
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inline void put(const KeyType &name, ValueType handle) noexcept;
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inline ValueType get(const KeyType &name) const noexcept;
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inline void clear() noexcept;
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inline bool has(const KeyType &name) const noexcept;
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private:
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using Container = ccstd::unordered_map<KeyType, ValueType, typename KeyType::Hasher>;
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Container _container;
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};
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//////////////////////////////////////////////////////////////////////////
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template <typename KeyType, typename ValueType, ValueType InvalidValue>
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ValueType &Blackboard<KeyType, ValueType, InvalidValue>::operator[](const KeyType &name) noexcept {
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const auto it = _container.find(name);
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return (it == _container.end() ? _container.emplace(name, InvalidValue).first : it)->second;
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}
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template <typename KeyType, typename ValueType, ValueType InvalidValue>
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void Blackboard<KeyType, ValueType, InvalidValue>::put(const KeyType &name, ValueType const handle) noexcept {
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_container[name] = handle;
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}
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template <typename KeyType, typename ValueType, ValueType InvalidValue>
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ValueType Blackboard<KeyType, ValueType, InvalidValue>::get(const KeyType &name) const noexcept {
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const auto it = _container.find(name);
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return it == _container.end() ? InvalidValue : it->second;
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}
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template <typename KeyType, typename ValueType, ValueType InvalidValue>
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void Blackboard<KeyType, ValueType, InvalidValue>::clear() noexcept {
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_container.clear();
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}
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template <typename KeyType, typename ValueType, ValueType InvalidValue>
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bool Blackboard<KeyType, ValueType, InvalidValue>::has(const KeyType &name) const noexcept {
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return _container.find(name) != _container.end();
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}
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} // namespace framegraph
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} // namespace cc
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